Java is a versatile, object-oriented programming language that is widely used for software development across various industries. Java Developers can help clients create anything from complex web applications to automated trading bots and mobile apps. With their advanced skills and knowledge, they can turn your vision into reality, providing you with tailored solutions that align with your business goals. Here are some recent projects that our expert Java Developers made real:

  • Developing custom GUIs for existing codebases
  • Creating encrypted, secure crypto apps
  • Designing cross-platform audio merging tools for mobile devices
  • Building sophisticated trading bots for the cryptocurrency market
  • Implementing open-source virtual machines in C
  • Collaborating as senior developers on large-scale Android projects
  • Solving server request errors for mobile applications
  • Running and optimizing code from Git repositories
  • Designing and implementing web services for seamless integration

Hiring Java Developers on Freelancer.com gives you access to a global pool of talented professionals who can deliver high-quality solutions tailored to your needs. Our platform makes it easy and convenient to find, hire, and collaborate with skilled Java experts from around the world. So why wait? Bring your ideas to life by posting your own project and hiring a Java Developer on Freelancer.com today!

From 245,251 reviews, clients rate our Java Developers 4.9 out of 5 stars.
Hire Java Developers

Java is a versatile, object-oriented programming language that is widely used for software development across various industries. Java Developers can help clients create anything from complex web applications to automated trading bots and mobile apps. With their advanced skills and knowledge, they can turn your vision into reality, providing you with tailored solutions that align with your business goals. Here are some recent projects that our expert Java Developers made real:

  • Developing custom GUIs for existing codebases
  • Creating encrypted, secure crypto apps
  • Designing cross-platform audio merging tools for mobile devices
  • Building sophisticated trading bots for the cryptocurrency market
  • Implementing open-source virtual machines in C
  • Collaborating as senior developers on large-scale Android projects
  • Solving server request errors for mobile applications
  • Running and optimizing code from Git repositories
  • Designing and implementing web services for seamless integration

Hiring Java Developers on Freelancer.com gives you access to a global pool of talented professionals who can deliver high-quality solutions tailored to your needs. Our platform makes it easy and convenient to find, hire, and collaborate with skilled Java experts from around the world. So why wait? Bring your ideas to life by posting your own project and hiring a Java Developer on Freelancer.com today!

From 245,251 reviews, clients rate our Java Developers 4.9 out of 5 stars.
Hire Java Developers

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    I'm in need of a seasoned Full Stack Software Engineer with AWS to assist with espically in Backend. (AWS knowledge is must , LAMBDA , STEP FUNCTIONS, ECS , Redshift) and Terraform .) Responsibilities : - Particiate in daily Monday to Friday 2 hour to discuss and solve backend java , AWS , Micro-service and Terraform task- Provide guidance on best practices and approaches - Take responsibvility of task management and delivery Qualifications: * Atleast 4- 5 years of experience in Java , Springboot , AWS , Microservices * Strong Experience with end-end testings for both frontend and backend. Compentation : $400-$450 / month for 2 hours of work per day If you are passiobate about coding and enjoying mentoring , I'd love to hear from you >

    $629 Average bid
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    81 bids

    PROJECT DESCRIPTION We are looking for an experienced Android developer to build a professional mobile application for location-verified photo and video capture. The application will allow users to capture photos and videos with location-based information embedded directly into the image or video. The goal is to create a reliable field documentation tool that can be used in professional environments such as inspections, infrastructure monitoring, site documentation, and survey reporting. The application will include camera functionality, GPS location capture, metadata overlays, media storage, gallery viewing, and report generation features. This project requires strong experience in: • Native Android development • CameraX API • GPS and location services • And...

    $419 Average bid
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    41 bids

    We are looking for a skilled developer to build a Google Drive to Google Gemini AI Connector. The goal is to create a secure, reusable application that allows querying and processing documents stored in Google Drive using Gemini’s AI capabilities. Key Features: - OAuth2-secured Google Drive integration (read-only access) - Full Google Gemini API support - RAG (Retrieval-Augmented Generation) for intelligent document processing - Web interface for user-friendly querying - REST API for programmatic acces - Support for multiple file formats: PDF, Docs, Word, Text, CSV - Reusable template to create multiple independent knowledge bases Deliverables: - Fully functional connector application - Complete, well-documented source code - Configuration files and setup instructions - Web interfa...

    $292 Average bid
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    123 bids

    A proposal is a formal document or written plan used to present an idea, project, or solution to someone for approval or support. It explains what a person or organization wants to do and why it should be accepted. Proposals are commonly used in business, education, research, and project planning. The main purpose of a proposal is to convince the reader that the idea is useful, practical, and worth implementing. A good proposal clearly describes the problem or need, the objectives of the project, and the methods that will be used to achieve the goals. It also may include information about required resources, time schedule, and expected outcomes. Proposals are usually written in a clear and organized manner so that the reader can easily understand the plan. In many cases, they contain sec...

    $395 Average bid
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    16 bids

    I need an experienced software engineer who can step into scheduled Zoom / Google Meet calls and treat them exactly like real technical interviews. During each 45- to 90-minute session you will share your screen, think out loud, and solve data-structure, algorithm, and the occasional system-design problem in real time. To make sure the sessions feel authentic you should already be comfortable white-boarding (or using an online pad) in at least one major language—Java, Python, JavaScript, C++, or a similar modern stack is fine—and be able to defend your approach under follow-up questions. Clear, confident English is important so the interviewers can probe your reasoning without friction. When you reply, tell me: • the language(s) you want to use, • a brief note...

    $174 Average bid
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    26 bids

    I need a full-function Android application that lets users request and receive a short-term payday loan that must be repaid in seven days. The flow should feel effortless: from a simple, clean onboarding screen through to instant approval, wallet funding, and automated repayment reminders. Here is what matters most to me right now: • Platform: Android only. • Look & feel: simple, uncluttered UI that moves users from registration to cash-out in as few taps as possible. You will be responsible for both the mobile front-end and the secure back-end (API + database). Expect to integrate standard KYC checks, a lightweight scoring logic for eligibility, mobile money / bank payout, and an admin console where I can review applications and monitor repayments. Deliverables –...

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    32 bids

    ق,صد دارم یک اپلیکیشن اندرویدی بسازم که هستهٔ اصلی آن ارسال و دریافت اعلان‌ (Push Notification) باشد. به یک برنامه‌نویس مسلط به Android Studio و Kotlin یا Java نیاز دارم تا نسخه‌ اولیه‌ای آماده کند که شامل موارد زیر باشد: • راه‌اندازی ساختار پروژه و معماری تمیز • پیاده‌سازی سرویس اعلان‌ها (Firebase Cloud Messaging یا راهکار معادل) • یک رابط کاربری ساده برای نمایش پیام‌های دریافتی • تنظیمات کاربر برای فعال/غیرفعال کردن اعلان‌ها • تحویل فایل APK قابل نصب، کد منبع مستند و راهنمای اجرای محلی اگر تجربه‌ی ادغام سرویس‌های آنالیتیکس یا ویژگی‌های تکمیلی دارید، خوشحال می‌شوم پیشنهاد بدهید اما تمرکز اصلی همان اعلان‌ها است. کد باید خوانا و قابل توسعه باشد تا در مراحل بعد بتوانم ویژگی‌های دیگری...

    $629 Average bid
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    60 bids

    I need a secure Android banking app built from the ground up for Arab Bank. The core scope is clear: users must be able to manage their accounts, transfer funds, and pay bills effortlessly from their phones. To make this happen, I’ll supply API documentation for our core-banking system along with brand guidelines and sample data. Your task is to design and code the full mobile experience—clean UI, solid architecture, and encrypted communication throughout. Performance, accessibility, and regulatory compliance (PCI-DSS level practices) are non-negotiable. Deliverables • Fully functional Android app (latest stable SDK) • Source code in Git, well-commented and neatly structured • UI/UX assets (Figma or similar) • Integration layer that consumes our ...

    $32 / hr Average bid
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    117 bids

    We are building an offshore SAP development team for an ongoing international SAP project and are looking for experienced SAP UI5 Developers and SAP ABAP Developers to join a dedicated development team. The team will support SAP development, integration, and enhancement work within an SAP S/4HANA environment while collaborating with European stakeholders. Open Positions • 7 SAP UI5 Developers • 7 SAP ABAP Developers Experience Required 5–8 years of hands-on SAP development experience. Key Responsibilities • Develop and enhance SAP applications within the assigned technology stack • Participate in design discussions and development planning • Write clean, efficient, and maintainable SAP code • Support integrations with existing SAP modules and serv...

    $21 / hr Average bid
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    20 bids

    Project Description Highlights The Mission: We are building "QuantumShield," a high-performance, user-friendly desktop application that protects sensitive SMB data against "Harvest Now, Decrypt Later" threats using standardized Post-Quantum Cryptography. Key Technical Focus: This is not a standard encryption project. We require implementation of ML-KEM (Kyber) and ML-DSA (Dilithium) within a Hybrid Cryptographic Scheme (PQC + Classical AES-256). The Deliverable: A functional MVP for Windows/macOS featuring a "One-Click Shield" drag-and-drop interface and a "Quantum Health Dashboard" that monitors file vulnerability status. Required Tech Stack: High-performance systems programming (e.g., Rust, C++, or Go) with direct experience usi...

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    67 bids

    I want a lightweight program that links the 20 Schneider EM6436 energy meters installed on-site to my PC and streams their readings in real time. The meters already sit on the local network; what I need is the software layer—code plus installer—so I can open the application and immediately see up-to-date values without having to poll each unit manually. Language is flexible. If you prefer Python, C++, Java or another mainstream option, propose what offers the most stable performance for continuous acquisition. I’ll run the finished program on Windows, so please include any libraries or runtime packages I must install. Display format can be simple; the priority is receiving clean real-time data that I can later export or feed into other tools. If you have a quick way to ...

    $90 Average bid
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    19 bids

    I am looking for an experienced Full Stack Developer who can help integrate a third-party API into my existing web application. The application is already developed but needs to be connected with an external service so that data can be automatically exchanged and processed. The developer will be responsible for implementing API authentication, retrieving data from the external service, and storing the information in our database. The goal is to ensure a reliable and secure connection between our application and the external API. Tasks may include: • Integrating a third-party REST API into the existing system • Implementing authentication and secure API requests • Processing and storing incoming API data in the database • Creating endpoints that allow the frontend to ...

    $45 Average bid
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    38 bids

    Enterprise RAG + Vector Search Implementation for AI-Powered Facility Management System" - "Production RAG System: Materialized Views + Vector Embeddings + LLM Integration" - "AI-Powered Knowledge Base: RAG Integration for Facility Management Platform" [Project Description (copy-paste ready):] I need an experienced AI/ML engineer to implement a production-grade Retrieval-Augmented Generation (RAG) system for our facility management platform. Scope: - Database optimization (materialized views, dimensioning) - Vector embeddings implementation (pgvector, Supabase) - Semantic search integration - Full-text search capabilities - RAG pipeline for TrackPlan + Armadillo data sources - LLM integration with Gemma 3 12B Deliverables: - Optimized database layer with materi...

    $7472 Average bid
    NDA
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    79 bids

    I need an AI-powered chatbot fully integrated with WhatsApp to drive sales and lead generation for my business. The bot must be able to greet new contacts with a personalized welcome, recommend relevant products based on their replies, and send smart follow-up messages that nurture the conversation until the prospect converts or asks to speak with a human. Key requirements • Seamless connection to the WhatsApp Business API (Twilio, 360dialog or a comparable gateway are all fine). • Natural-language understanding so the bot can pick up intent, handle objections, and upsell intelligently—Dialogflow, Rasa, GPT-based models or similar NLP engines are acceptable. • Simple dashboard or webhook endpoints where I can update product info and track captured leads. &bull...

    $142 Average bid
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    49 bids

    Full-Stack Developer (Java / Spring Boot + Vue 3) – E-Commerce Platform – Ongoing Contract We are very interested in developers based in Ukraine, Romania, Czechia, Slovakia, Estonia, Latvia, Lithuania, Bulgaria, Slovenia, Croatia, Hungary, Poland, Vietnam, and Taiwan. If you are located in any of these regions, your bid will have priority review over bidders in much larger nations that tend to flood freelance markets with bids. About Us We operate an e-commerce platform serving international customers. Our system is built on a decoupled front-end/back-end architecture and is currently live in production. We're looking for a reliable full-stack developer to join us on an ongoing freelance basis to help with feature development, maintenance, bug fixes, and incremental imp...

    $237 Average bid
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    44 bids

    I need a complete, production-ready 24 Hours Driver Tracking System that lets me see where every vehicle and driver is at any moment, day or night. Administrators, Drivers, and Dispatch Operators will each log in with their own role-based permissions. For tracking, GPS data must stream continuously to a secure database so I can pull up detailed trip history whenever required—start and stop times, routes taken, idle periods, and speed profiles. Beyond the live map view, the system should let me replay routes and export reports for safety audits and route optimisation. The administrator interface has to be a desktop application. I am open on framework choice—Electron, .NET, Java FX, or another stable stack—as long as it feels responsive and is easy to maintain. Front-...

    $21 / hr Average bid
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    34 bids

    We are looking for an experienced developer who can build an automated system to extract daily newly incorporated company data from the MCA (Ministry of Corporate Affairs) website – https://www.mca.gov.in. The system should automatically collect and deliver the list of companies incorporated each day in structured format (Excel / CSV / API / Database). Scope of Work: Develop a web scraping or API-based solution to extract daily incorporated company data from the MCA portal. The tool should automatically fetch newly incorporated companies every day. Data should include the following fields (minimum): CIN Company Name Date of Incorporation ROC (Registrar of Companies) State Company Type (Private Limited / LLP / OPC / Public Limited) Authorized Capital (if available) Regist...

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    30 bids

    I’m assembling a rotating panel of seasoned Java professionals to help me run technical interviews for upcoming hiring rounds. You should have a senior-level command of Core Java, the Spring Framework, and full-scale Java EE so you can probe candidates at depth and spot both strengths and red flags quickly. Every session will be a blend of structured technical questions, live coding challenges, and an open system-design discussion. I already have a question bank and an online coding environment in place, but I count on you to adapt on the fly, dig deeper when useful, and suggest new problems if a gap appears. Deliverables for each candidate you assess: • 60-minute video interview conducted on my platform • Real-time scoring against the rubric I provide • A concis...

    $29 / hr Average bid
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    82 bids

    I’m expanding a distributed team that delivers modern web applications for U.S.–based clients, and I need another full-stack developer who can jump in quickly and work 30+ hours each week for at least the next three months. Because many projects touch regulated data, U.S. citizenship is mandatory and you’ll be asked to confirm this during onboarding. The stack you’ll meet on day one is React on the frontend and Node.js/Express.js on the backend, so solid, hands-on experience with both is essential. If you also know TypeScript, Python, or Java—and have tinkered with Angular, Vue, Django, or Spring Boot—that versatility will come in handy, but React and Node.js are the core. I’m looking for someone who: • Has a minimum of two years of profess...

    $78 / hr Average bid
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    115 bids

    I need an Android application that allows users to send and receive funds quickly, track their full transaction history, and handle multiple currencies inside a single, clean interface. Security is critical: log-in and every sensitive action must be gated by a traditional password plus a four-digit PIN flow. Core scope • Android-only build, coded in Kotlin or Java and compiled in Android Studio. • Real-time money movement between verified accounts. You may connect to an existing payment gateway or build REST endpoints; either way the transfer must settle instantly in a sandbox environment. • Persistent ledger so users can open “History” and filter by date, currency, or status. • Multi-currency wallet: balances, FX conversion at live rates, and clear...

    $444 Average bid
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    88 bids

    Hello freelancers, I am looking for a developer with basic cybersecurity and networking knowledge to build a small tool that scans a target host and identifies open network ports. The purpose of this project is to create a lightweight educational tool that helps students understand how port scanning works and how services running on open ports can expose potential security risks. The tool should allow a user to enter an IP address or domain name, scan a range of ports, and display which ports are open, closed, or filtered. This project is intended as a learning tool for network security, helping users understand concepts such as: Network ports Services running on ports Potential attack surfaces Basic reconnaissance techniques Main Features The tool should perform the following ac...

    $52 Average bid
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    42 bids

    I am looking for an experienced reverse engineer or mobile security specialist to help analyze the network communication of an Android application. The application currently implements SSL certificate pinning, which prevents traffic inspection using standard interception tools (such as proxies). Because of this, I cannot capture the login requests and related API communication. Project Goals: Perform reverse engineering of the Android APK. Identify and bypass the SSL pinning protection implemented in the app. Enable traffic inspection so the login requests can be captured and analyzed. Document the login request structure and related API endpoints. Help replicate the login request programmatically using either: Node.js, or Python The final goal is to understand how the login API ...

    $643 Average bid
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    96 bids

    I’m upgrading an existing e-commerce platform and the next milestone is a robust admin dashboard built with React, Tailwind CSS (plus the occasional Bootstrap helper), powered by a Java Spring Boot API backed by MySQL. Priority scope The public-facing site is already live, but the back-office tools are still thin. I want a dedicated dashboard that lets authorized staff control the whole store from one place. All admin routes will be secured with stateless JWT authentication. Core modules to deliver • User management – create, edit, disable users and roles • Product management – CRUD for catalog items, images, categories and inventory levels • Order tracking – view order history, status updates, refunds and fulfilment notes Technical expec...

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    25 bids

    My current application depends on a custom Java-based WebRTC layer. I now need the same real-time capabilities rebuilt natively in Angular so the front-end team can iterate faster and keep everything in a single tech stack. Scope of work The new Angular module must handle plain audio calls, full HD video calls, and our existing “virtual classroom” flow that lets tutors and students join at scheduled times. Beyond parity with the Java version, I also want integrated screen sharing, an in-session chat panel, and the ability to record each session for later playback. All features have to work smoothly on desktop, mobile, and tablet browsers. Tech notes • Angular 16+ with TypeScript best practices • Direct use of WebRTC APIs—no server-side media mixing is re...

    $391 Average bid
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    51 bids

    I need an experienced security engineer to harden our multi-tenant SaaS product, prepare us for HIPAA and SOC 2 Type II audits, and stay on call for incident response. The stack runs primarily on AWS, Azure or GCP, with containerised workloads orchestrated by Kubernetes. Day-to-day you will probe our web apps and APIs with Burp Suite and OWASP ZAP, script automation in Bash, and guide the team as we fold security controls into an established Git-based CI/CD pipeline. Key objectives • Run a full penetration test against the platform, documenting exploitable findings against the OWASP Top 10 and cloud-specific misconfigurations. • Configure vulnerability scanning (Nessus, Snyk, Trivy) and wire SAST, DAST and dependency checks into our build pipelines. • Implement and v...

    $18 / hr Average bid
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    15 bids

    I have an Android Studio project that needs some spring-cleaning before we add a small new feature. First, the housekeeping: • strip out any dead or unused classes, methods, and resources • refactor what remains so the codebase is readable, well-named, and lint-warning free • resolve a couple of known crashes and UI glitches Once that baseline is solid, I’d like a new dropdown on the main screen. It only has to show a static list that ships with the app—no dynamic filtering or server fetches right now—but please wire it so it can be extended easily later. The app is built with Kotlin (with a few legacy Java files), Gradle 8, minSdk 24. I’ll provide Git access and notes on the bugs I’m seeing. Deliverables • Clean compile with zero...

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    27 bids

    Job Title: Senior Apache OFBiz Developer / Architect (7+ Years Experience) We are looking for a Senior Apache OFBiz Consultant to lead an end-to-end ERP implementation for a growing organization. This is a high-ownership, remote contract role. About the Role: This is our client's first external ERP engagement. We need someone who brings deep OFBiz expertise, a configuration-first mindset, and the ability to guide a technical team confidently from start to go-live. What You Will Work On: - Lead full end-to-end Apache OFBiz ERP implementation - Configure core modules: Finance & Accounting, Inventory, Procurement, Sales & Distribution - Work closely with the internal technical team and provide ERP best practices - Deliver scalable, upgrade-friendly, minimal-customization solut...

    $17 / hr Average bid
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    5 bids

    Project: Custom Gemini-Powered App with Voice Recognition and Document Processing Goal: To develop a new application (or enhance an existing one) that integrates Gemini's intelligence with advanced voice capabilities. Key Features: Voice Interaction: Full voice-to-voice support. The app will capture user speech (Speech-to-Text), process it via Gemini, and provide both a written and a spoken response (Text-to-Speech). Custom "Gem" Logic: Replicating Gemini Gem functionality by providing custom instructions through System Prompts and a dedicated knowledge base. Data Ingestion: The ability to "train" or inform the AI's context using uploaded PDFs, text files, or live web links. Implementation: This can be built as a standalone application with its own settings pa...

    $358 Average bid
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    145 bids

    I need an external AI agent wired into that greets every new enquiry, leads a natural chat to collect our booking basics—shoot type, preferred date, location—and then shares the right service package, all while drawing on an already-prepared knowledge base to answer follow-up questions. The moment a lead proposes an exact date or asks something outside the predefined scope, the conversation must be handed over to a human without losing context. You will be building a hybrid system: clear rule-based steps for qualification and escalation, reinforced by machine-learning NLP so the agent understands free-form questions and keeps the tone friendly and on-brand. All data gathered in the chat has to flow straight into our CRM, and any outgoing email (quotes, confirmations, package ...

    $698 Average bid
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    155 bids

    I need an experienced developer to build a Proof of Concept (PoC) for a browser-based automation tool on Dolphin Anty. The goal is to streamline a chat-based workflow using AI and stealth-focused automation. Project Overview: I need an experienced developer to build a robust Proof of Concept (PoC) for a browser-based automation tool running inside Dolphin{anty}. The goal is to automate a chat-based workflow using AI for content generation and advanced stealth techniques. Core Workflow (The Loop): Data Extraction: The bot must read the current chat history and extract specific data points (e.g., Name/Location) using OpenAI GPT-4o. AI Response: Generate a context-aware reply based on the chat history and a configurable System Prompt. Stealth Interaction: - Simulate human-like typing (va...

    $1752 Average bid
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    175 bids

    I need a complete Android Enterprise Mobility Management system built from the ground up, focused squarely on device management. The platform must let me enrol, configure and oversee fleets of smartphones and tablets through a web console and accompanying Android agent. Core scope • Robust enrolment workflows (QR code, zero-touch and manual) that place devices in Device Owner mode. • Policy and configuration push—Wi-Fi, apps, restrictions—applied instantly or on schedule. • Live dashboard showing device status, compliance flags and basic audit logs. • Remote actions (lock, wipe, reboot) executed securely over the air. • Scalable back-end with REST APIs so we can integrate ticketing and reporting later. Tech expectations – Android Ent...

    $433 Average bid
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    50 bids

    I already have a working image-recognition model running inside Google AI Studio; now I need it packaged as a production-ready Android app that can be published on the Google Play Store. The heart of the job is wiring the existing model to the camera so recognition happens in real-time. From there, I also want: • User authentication so each person has a secure, personal session • An in-app analytics dashboard that shows usage stats and model performance • Push notifications to re-engage users and announce updates I will supply the AI Studio project and any trained model assets. You would handle the app architecture, UI that feels native on modern Android, the integration of the above features, plus Play Store compliance (privacy policy hooks, adaptive icons, signed ...

    $149 Average bid
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    18 bids

    Role Overview Build and maintain a fintech platform mobile/web frontend, backend services, wallet system, and payment integrations. Key Responsibilities • Design and develop scalable frontend and backend architecture • Build responsive web/mobile interfaces for merchants, distributors, and admin dashboards • Develop backend APIs for authentication, wallet management, transactions, and commissions • Integrate payment services (UPI, recharge, bill payment, payouts) • Implement secure wallet and ledger system for financial transactions • Build multi-level commission engine • Design optimized database schema for high-volume transactions • Implement authentication, OTP login, and security best practices • Deploy applications using cloud infrastruct...

    $3336 Average bid
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    124 bids

    I need a secure Android banking app built from the ground up for Arab Bank. The core scope is clear: users must be able to manage their accounts, transfer funds, and pay bills effortlessly from their phones. To make this happen, I’ll supply API documentation for our core-banking system along with brand guidelines and sample data. Your task is to design and code the full mobile experience—clean UI, solid architecture, and encrypted communication throughout. Performance, accessibility, and regulatory compliance (PCI-DSS level practices) are non-negotiable. Deliverables • Fully functional Android app (latest stable SDK) • Source code in Git, well-commented and neatly structured • UI/UX assets (Figma or similar) • Integration layer that consumes our ...

    $27 / hr Average bid
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    116 bids

    I’m looking for an experienced developer to turn my concept into a fully functioning piece of software. The core idea is defined, but I’m flexible on the exact platform—web, mobile, or desktop—so we can choose the stack that best meets the goals we set together. What I need from you: • Translate my requirements into clean, well-structured code stored in Git. • Build a working application with a straightforward deployment process (test environment first, production later). • Include unit tests and concise user/technical documentation. • Communicate progress regularly and respond quickly to feedback so we can iterate efficiently. If you’ve delivered end-to-end software projects before, tell me about your preferred technologies and share exa...

    $31 / hr Average bid
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    133 bids

    I’m refreshing my brand and need two cohesive assets built around a clean, modern aesthetic: a distinctive logo and a print-ready brochure. The logo should work smoothly across digital and print media, so I’ll need the final artwork supplied in layered source files (AI or PSD), scalable vector formats (SVG, EPS), plus web-safe PNG/JPG versions. For the brochure, think sleek lines, generous white space, and imagery that pairs naturally with the new logo. I expect a press-ready PDF (300 dpi, CMYK) and the working file so future edits remain easy. Page count will settle once we review your concept, but please plan for a standard tri-fold or a concise multi-page layout. When you respond, focus on your experience with modern brand collateral—screenshots, live links, or b...

    $13 / hr Average bid
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    23 bids

    Requirements -Proven experience in software development with expertise in one of these stacks; Ruby on Rails, JavaScript, Python, C++, C#, Java, React, Angular, Vue and .NET frameworks. -Strong understanding of RESTful API design, web development practices, and front-end development using React or similar frameworks. -Hands-on experience managing cloud infrastructure on AWS and Azure platforms. -Familiarity with IT infrastructure components including RBAC (Role-Based Access Control), Linux server environments, and application deployment strategies. -Proficiency with version control tools such as GitHub, SVN, and Git. -Knowledge of database systems including MySQL and SQL Server along with SQL query optimization skills. -Experience working within Agile methodologies to deliver high-quality ...

    $48 / hr Average bid
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    313 bids

    I need a complete Android Enterprise Mobility Management system built from the ground up, focused squarely on device management. The platform must let me enrol, configure and oversee fleets of smartphones and tablets through a web console and accompanying Android agent. Core scope • Robust enrolment workflows (QR code, zero-touch and manual) that place devices in Device Owner mode. • Policy and configuration push—Wi-Fi, apps, restrictions—applied instantly or on schedule. • Live dashboard showing device status, compliance flags and basic audit logs. • Remote actions (lock, wipe, reboot) executed securely over the air. • Scalable back-end with REST APIs so we can integrate ticketing and reporting later. Tech expectations – Android Ent...

    $401 Average bid
    $401 Avg Bid
    44 bids

    I need my live B2B fintech portal () rebuilt as a fully-native Android application in Kotlin. The backend—PHP with MySQL—already exposes clean, well-documented REST APIs, so your focus is UI, API binding, and biometric SDK handling. Tech stack & architecture • Kotlin using MVVM or other Clean Architecture patterns • Retrofit for networking and JSON parsing • OTP + MPIN login with device binding, SSL pinning, and token-based sessions Biometric requirement AEPS transactions must trigger the RD Service intent flow for Mantra, Morpho, and Startek devices. Please demonstrate successful capture and response handling for each model during testing. Dashboard behaviour On launch the dashboard must pull data dynamically and show: 1. User account summary ...

    $188 Average bid
    $188 Avg Bid
    39 bids

    I need a complete unilevel-based MLM system that runs primarily through an Android app and sends real-time crypto trading signals to every member—similar in flow to the SignalMax WordPress notification experience I referenced. Core experience Members should be able to register, view their downline, and receive push notifications the moment a new signal is published. An intuitive user dashboard must show current rank, personal volume, group volume, and wallet balances. I also want an admin space where I can issue signals, upload short training videos, manage plans, and monitor overall network health without touching code. Key functions we must hit • User dashboards • Commission tracking with automatic unilevel calculations and daily/weekly payout runs • Sale...

    $97 Average bid
    $97 Avg Bid
    11 bids

    I'm seeking a developer to create an Order Management System (OMS) specifically designed to automate production workflows for embroidery digitizing and vector services. The OMS should streamline and enhance our operational efficiency. Key requirements: - Automate production workflows Ideal skills and experience: - Experience in developing OMS - Familiarity with embroidery production processes - Strong background in workflow automation - Integration capabilities with existing software (if needed) Please share relevant experience and approach.

    $416 Average bid
    $416 Avg Bid
    25 bids

    I need a complete Android Enterprise Mobility Management system built from the ground up, focused squarely on device management. The platform must let me enrol, configure and oversee fleets of smartphones and tablets through a web console and accompanying Android agent. Core scope • Robust enrolment workflows (QR code, zero-touch and manual) that place devices in Device Owner mode. • Policy and configuration push—Wi-Fi, apps, restrictions—applied instantly or on schedule. • Live dashboard showing device status, compliance flags and basic audit logs. • Remote actions (lock, wipe, reboot) executed securely over the air. • Scalable back-end with REST APIs so we can integrate ticketing and reporting later. Tech expectations – Android Ent...

    $397 Average bid
    $397 Avg Bid
    50 bids
    Golang Developer
    4 days left

    Role: Golang Developer Duration: 4 Hours Timing: 6:30 PM IST – 10:30 PM IST Budget: ₹500 per hour Start Date: Immediate Key Responsibilities Provide real-time development using Golang (Go). Assist in debugging, troubleshooting, and optimizing Golang-based applications. backend API development and microservices architecture built with Golang. Work with TypeScript-based services or integrations when required. Collaborate with the development team to quickly resolve technical issues. Guide on best practices for building scalable, secure, and efficient services. Ensure smooth deployment and performance monitoring of backend services. Required Technical Skills Golang (Go), TypeScript, REST APIs, Microservices Architecture, Docker, Kubernetes, Git, PostgreSQL/MySQL, MongoDB, Redis, gRPC, ...

    $375 Average bid
    $375 Avg Bid
    16 bids

    I'm looking to assemble a skilled team to create an immersive simulation game on Roblox. The game will feature character customization, building and construction mechanics, and complex scripting. Ideal candidates will have: - Proven experience in Roblox game development - Strong skills in scripting, particularly with Lua - Expertise in designing engaging character customization options - Ability to create intricate building and construction gameplay mechanics - Team collaboration experience Please share your portfolios and relevant project experience.

    $252 Average bid
    $252 Avg Bid
    29 bids

    We are seeking a highly experienced Senior Full-Stack Developer to design and build a scalable online tutorial streaming platform that enables creators to upload, manage, and sell video-based tutorials. The developer will be responsible for the entire development lifecycle, including system architecture, backend and frontend development, deployment, security implementation, and long-term maintainability. The backend architecture must be developed using both Python and Java, leveraging the strengths of each technology to create a robust, scalable, and high-performance platform. The system should support secure content delivery, user management, payment processing, and efficient content administration. The ideal candidate has strong experience with distributed systems, video streaming tech...

    $3092 Average bid
    $3092 Avg Bid
    278 bids

    1️⃣ n8n Automation & Media Pipeline Integration Developer We are looking for a developer to help organize and connect an existing automation system. Most of the system is already built so the main work is reviewing the current structure and connecting or adjusting existing modules rather than building new features from scratch. Tasks include connecting and organizing n8n workflows, integrating existing automation modules, and adjusting FFmpeg-based media generation such as bulk processing, retry logic, subtitle/voice resolrution settings, and template-based design layout. Some small adjustments to existing Chrome Extension made by Playwright scripts may also be required if necessary. Its optional The current system structure is documented in Notion. The work should be done by review...

    $45 Average bid
    $45 Avg Bid
    57 bids
    Integrate Multiple OTA APIs
    3 days left
    Verified

    I run our ground-transport operation on and now need all of our OTA and transfer partners to flow in and out of the system without manual work. Concretely, I want every new booking, change, or cancellation coming from Transferz, MyTransfers, Talixo, , Transfeero, Oulvgo, Kiwitaxi and CarTrawler to appear in automatically, then stay in sync through real-time webhooks. Codico already exposes REST endpoints for reservations, vehicles, drivers and trip status. Each partner publishes its own JSON/REST interface (some with polling, others with webhook callbacks). Your job is to map them one by one to Codico’s schema, build the middleware or micro-service that sits between the sources and Codico, and put solid logging and error handling around it so nothing is lost. Because this touches...

    $246 Average bid
    $246 Avg Bid
    113 bids

    Comat antigravity 2️⃣ Browser Automation & UI Integration Developer We are looking for a developer to help connect browser automation with an existing system UI. The system has already been built by another developer, so the work mainly involves reviewing existing code and connecting components rather than building everything from scratch. Tasks may include reviewing Playwright-based browser automation scripts, making small modifications if needed, and connecting them with the existing system UI or automation flow. Some small adjustments to Chrome Extension scripts may also be add grok The system structure is documented in Notion. Work should be performed by comparing the Notion documentation with the actual implementation step-by-step to identify missing connections or adjustme...

    $42 Average bid
    $42 Avg Bid
    35 bids

    2️⃣ Browser Automation & UI Integration Developer We are looking for a developer to help connect browser automation with an existing system UI. The system has already been built by another developer, so the work mainly involves reviewing existing code and connecting components rather than building everything from scratch. Tasks may include reviewing Playwright-based browser automation scripts, making small modifications if needed, and connecting them with the existing system UI or automation flow. Some small adjustments to Chrome Extension scripts may also be add grok The system structure is documented in Notion. Work should be performed by comparing the Notion documentation with the actual implementation step-by-step to identify missing connections or adjustments. JSON files and c...

    $648 Average bid
    $648 Avg Bid
    107 bids

    Project Title: Elite AI Architect Needed: LangChain & OpenAI Expert for Autonomous Business Intelligence Build Project Description: About Vimassa Tech: We are scaling an autonomous business intelligence system and are seeking an "Elite" AI Developer who specializes in architecting complex, scalable systems. We value engineering excellence over generic "wrappers." The Mission: You will take end-to-end ownership of building and deploying a core AI infrastructure. This isn't just a simple integration; it requires deep technical knowledge of agentic workflows and advanced RAG architectures. Technical Standards Required: Expertise in LangChain, OpenAI API, and Python. Advanced experience with Vector Databases (Pinecone, Weaviate, etc.). Proven ability to build, demo...

    $10200 Average bid
    $10200 Avg Bid
    68 bids

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