
Millions of people use Freelancer to turn their ideas into reality.
Trusted by leading brands and startups
Post your project for free and connect with skilled freelancers ready to start today. Compare bids, ratings and portfolios, and only pay when you're happy with the work.
~370 sec
to first bid
53+
bids per project
5k+
freelancers online
No upfront cost · pay only when you're happy with the work

8.3
8.3
94%

Karachi, Pakistan
$25 USD per hour
We build AI-powered software systems, intelligent automation workflows, AI agents, MCP servers, and scalable SaaS platforms for startups, agencies, and enterprises. Our expertise includes AI agent architecture, workflow automation, OpenAI integrations, multi-agent systems, MCP server development, CRM automation, business process automation, and enterprise-grade web applications. We help businesses automate operations, reduce manual work, improve customer experience, and scale faster using modern AI technologies. 🚀 Core Expertise: ✔ AI Agents & Autonomous Systems ✔ MCP Server Development ✔ OpenAI, Claude & Gemini Integrations ✔ AI Chatbots & Assistants ✔ n8n & Workflow Automation ✔ AI CRM & Business Automation ✔ SaaS Platforms & Enterprise Applications ✔ Laravel, React, Node.js & APIs ✔ Multi-Tenant Architectures ✔ Cloud Infrastructure & DevOps 💡 We specialize in: • AI-powered CRM systems • AI customer support agents • Business workflow automation • AI lead qualification systems • AI dashboards & analytics • AI-enhanced marketplaces • AI-integrated ERP/CRM platforms • Voice AI & AI chat systems • Custom MCP server implementations Our focus is delivering scalable, secure, maintainable, and revenue-driven AI software solutions with long-term business value.

9.8
9.8
93%

Dhaka, Bangladesh
$20 USD per hour
➡️ Mediusware | AI-Powered SaaS & Web Development Company | Automation & Scalable Systems Most projects fail due to slow execution, manual processes and poor scalability. We solve that with AI-powered development, automation systems and a dedicated expert team. I’m Shahin, CEO of Mediusware — an AI-powered software development company helping startups and growing businesses build, automate and scale products faster and more efficiently. We don’t just develop software. We combine AI, automation and engineering systems to build smarter, faster, and more scalable solutions. 💡 Why Mediusware → AI-powered development workflows for faster and more efficient delivery → Automation-first approach to reduce manual work and operational costs → Dedicated team model with project manager, developers, QA, and designer → System-driven execution with clear processes and predictable outcomes → Reliable communication and structured project tracking → Long-term scaling and optimization support 🛠️ Our Expertise → SaaS product development from MVP to scalable platform → AI-powered applications and intelligent systems → Automation systems using n8n, Zapier, Make and custom workflows → AI and Machine Learning integrations including LLMs, chatbots, and data-driven features → Business process automation and workflow optimization Web & Software Development → Frontend: React, Next.js, Vue → Backend: Node.js, Laravel, Python Django, Java, .NET → API development and third-party integrations Mobile Development → Cross-platform: Flutter, React Native → Native iOS: Swift, Objective-C → Native Android: Kotlin, Java → Hybrid frameworks: Ionic, Xamarin → Progressive Web Apps for mobile-ready web solutions CMS & No-Code Platforms → WordPress development and customization → Shopify stores and eCommerce solutions → Wix websites → Webflow design and development Design & Product → UI and UX design using Figma with product-focused approach Support & Scaling → Maintenance, optimization, and performance scaling ⚙️ How We Deliver → Understand your business goals and automation opportunities → Design system architecture and workflow strategy → Execute using AI-accelerated development and automation tools → Build scalable systems, apps, and automation pipelines → Provide regular updates with full transparency → Continuously improve performance and efficiency 📈 What You Get → Faster delivery with AI-powered execution → Reduced operational costs through automation → Scalable systems built for growth → Clean, maintainable, production-ready code → Reliable team with no single point of failure → Strong project management and accountability → A long-term technical and automation partner 🤝 Let’s Build If you're building a SaaS, automating your business, or scaling your product: → Send a message → Get a clear scope, automation plan, and execution roadmap

7.3
7.3
96%

Karachi, Pakistan
$50 USD per hour
بِسْمِ اللهِ الرَّحْمٰنِ الرَّحِيْمِ صل على محمدﷺ السلام عليك يا رسول اللهﷺ السلام عليك يا حبيبي يا نبي اللهﷺ 𝗦𝗼𝗳𝘁𝗲𝗰𝗵𝗶𝗲𝘀 𝗦𝗼𝗹𝘂𝘁𝗶𝗼𝗻𝘀 has been delivering premium, production-ready software on this platform since 2012, with 24 client recommendations over 14+ years. We are a 𝗵𝗶𝗴𝗵-𝗰𝗮𝗹𝗶𝗯𝗲𝗿 𝗳𝘂𝗹𝗹-𝘀𝘁𝗮𝗰𝗸 𝗲𝗻𝗴𝗶𝗻𝗲𝗲𝗿𝗶𝗻𝗴 𝗮𝗴𝗲𝗻𝗰𝘆 that takes complex technical projects from initial architecture to global deployment and long-term infrastructure support. Clients work with us for our clear communications, meticulous code quality, and milestone-driven delivery. 𝗪𝗵𝗮𝘁 𝗪𝗲 𝗕𝘂𝗶𝗹𝗱 & 𝗦𝘂𝗽𝗽𝗼𝗿𝘁: 𝗪𝗲𝗯, 𝗦𝗮𝗮𝗦 & 𝗧𝗿𝗮𝗱𝗶𝗻𝗴 𝗦𝘆𝘀𝘁𝗲𝗺𝘀: Laravel, .NET Core, Node.js, React, Angular, Next.js, REST APIs, custom administration dashboards, Pine Script (v4/v5/v6), TradingView integrations, and quantitative logic replication. 𝗗𝗮𝘁𝗮 𝗘𝗻𝗴𝗶𝗻𝗲𝗲𝗿𝗶𝗻𝗴 & 𝗔𝘂𝘁𝗼𝗺𝗮𝘁𝗶𝗼𝗻: Custom scraping pipelines, algorithmic engines, automation scripts, multi-threaded processing, and machine learning model training workflows (Python, PyTorch, TensorFlow). 𝗘𝗻𝘁𝗲𝗿𝗽𝗿𝗶𝘀𝗲 & 𝗪𝗶𝗻𝗱𝗼𝘄𝘀: .NET 8 Windows Services, WinUI 3 desktop applications, IIS, SQL Server, and legacy software migrations. 𝗠𝗼𝗯𝗶𝗹𝗲 𝗔𝗽𝗽𝗹𝗶𝗰𝗮𝘁𝗶𝗼𝗻𝘀: Cross-platform and native builds using Flutter, React Native, iOS, and Android ecosystems. 𝗖𝗹𝗼𝘂𝗱 & 𝗗𝗲𝘃𝗢𝗽𝘀: Infrastructure optimization on Azure DevOps, AWS, Azure AD, GitHub Actions CI/CD setups, and secure Windows/Linux server management. 𝗦𝗲𝗰𝘂𝗿𝗶𝘁𝘆 & 𝗗𝗮𝘁𝗮𝗯𝗮𝘀𝗲𝘀: SCEP/EST protocol servers, certificate automation, code signing setups, SSL/TLS, PostgreSQL, MySQL, and SQLite integrations. 𝗖𝗠𝗦 & 𝗘-𝗖𝗼𝗺𝗺𝗲𝗿𝗰𝗲: WordPress, Shopify, WooCommerce, Magento, and ultra-fast headless builds. We take on complex engineering tasks that require deep technical knowledge. Tell us about your project and we will provide a rigorous, honest analysis of your scope and timeline before any code is written.

2.1
2.1
100%

Calgary, Canada
$40 USD per hour
Over the years, I’ve worked across a range of stacks—React, Next.js, Angular, Python (Flask, Django), ASP.NET, Node.js, and Vue—often blending them with cloud platforms like AWS, Azure, and Firebase to deploy robust solutions. Whether it’s building sleek front-end interfaces or architecting back-end systems that handle thousands of requests per second, I take pride in making products that don’t just function—they perform. By 2022, I was leading full-stack projects using the MERN and MEAN stacks, helping startups launch MVPs in as little as 6 weeks. But I didn’t stop there. As demand grew for smarter, more adaptive systems, I began integrating AI into the products I built. I started with OpenAI’s GPT API, using it to power dynamic customer service bots. Then came automations: workflow engines built using tools like n8n, Make.com, and Zapier that helped businesses cut hours of manual work each week. One project I’m particularly proud of involved building an AI-powered concierge for a travel platform. The bot not only understood user intent from messy input but also remembered returning users, supported multilingual interactions (English + Mandarin), and triggered real-time booking workflows via a custom Node.js backend. What once required human agents was now fully automated—saving the client over 40 hours of support time each week. I’ve also containerized complex systems using Docker and orchestrated multi-service deployments, ensuring they remain stable under load. From crafting admin dashboards with React + Tailwind to deploying .NET APIs on Azure for enterprise clients, I’ve worn many hats—and enjoyed the variety. But beyond the tech, what drives me is problem-solving. Whether it's debugging an edge case at 2 a.m. or streamlining an onboarding flow to reduce churn, I thrive at the intersection of logic and creativity. I don’t just build for today—I build with an eye on what’s next. If you're looking for a developer who can combine engineering precision with creative insight to deliver solutions that are both smart and scalable, I’d love to connect Let’s build what’s next—together My Skills Frontend Development: React, Next.js, Angular, Vue.js, Tailwind CSS, HTML5, CSS3, JavaScript (ES6+), TypeScript Backend Development: Node.js, Express.js, Python (Flask, Django), ASP.NET Core, PHP Full-Stack Frameworks: MERN Stack, MEAN Stack Cloud Platforms & Deployment: AWS (EC2, S3, Lambda), Microsoft Azure, Firebase API Development & Integration: REST, GraphQL, third-party API integrations AI & Automation: OpenAI GPT API, n8n, Make.com, Zapier, custom workflow automation Databases: MySQL, PostgreSQL, MongoDB, Firebase Firestore DevOps & CI/CD: Docker, Docker Compose, container orchestration, GitHub Actions, Azure DevOps

3.4
3.4
100%

Piscataway, United States
$25 USD per hour
Quantum Code Solutions | Premier Mobile, Web, CRM, SaaS, and Game Development Agency Welcome to Quantum code Solutions, where innovation meets expertise. We specialize in delivering top-notch solutions in Mobile App Development, Web Applications, CRM Systems, SaaS Platforms, and Game Development. Our team combines creative vision with technical mastery to build scalable, high-performing digital products that drive success. Our Core Services: 1. Mobile App Development & Publishing We create feature-rich, high-quality mobile apps for iOS and Android using frameworks like React Native, Flutter, Swift, and Kotlin. From initial concepts to app publishing, we guide you every step of the way, ensuring seamless deployment to the App Store and Google Play. 2. Web App Development & Design Our custom web applications are built for performance, scalability, and security using advanced technologies like React.js, Next.js, Vue.js, Nuxt.js, PHP, Laravel, and Node.js. We prioritize responsive design and intuitive interfaces to elevate user experiences. 3. CRM Development & Management Streamline your operations and enhance customer interactions with our tailored CRM solutions. We design systems that integrate effortlessly into your existing processes, driving efficiency and growth. 4. SaaS Development We build powerful, scalable SaaS platforms using leading technologies like MERN, MEAN, PERN, and MEVN stacks. Our focus is on creating efficient, user-friendly applications that deliver seamless performance. 5. Game Design & Development From immersive 2D/3D game design to AR, VR, and Metaverse experiences, we craft engaging gaming solutions using Unity and Unreal Engine. We also specialize in interactive kiosks and gamified experiences across platforms. 6. AR/VR and Metaverse Development Enter the future with our cutting-edge AR, VR, and Metaverse solutions. Whether it’s virtual storefronts, AR marketing campaigns, or metaverse platforms, we bring your immersive ideas to life. 7. IoT & Firmware Development We build smart IoT solutions and embedded firmware for connected devices using platforms like Arduino, ESP32, Raspberry Pi, and STM32, enabling seamless hardware-software integration. 8. PLC Programming & Automation We develop and optimize PLC systems for industrial automation using Allen Bradley, Siemens, and Schneider, focusing on efficient ladder logic and reliable process control. 9. Embedded Systems Development We create custom embedded solutions for smart devices and industrial applications, ensuring efficient, low-latency, and high-performance hardware integration. At Quantum Code Solutions, we deliver user-centric, innovative, and future-ready solutions to keep your business ahead in the digital race. Let’s build something extraordinary together.
A Puck.js expert is a freelance developer who programs Puck.js Bluetooth Low Energy beacons using JavaScript and the Espruino runtime to build wireless sensors, controllers, and IoT prototypes. These specialists turn the coin-sized, battery-powered Puck.js device into functional hardware solutions for smart buildings, asset tracking, accessibility tools, and rapid IoT prototyping. Hiring a Puck.js developer gives you a shortcut from idea to working BLE hardware without standing up a full embedded firmware team.
Puck.js freelancers deliver firmware, integrations, and complete hardware-software solutions built on the Espruino JavaScript engine that runs on the Puck.js. Because the device exposes its full functionality through JavaScript over Bluetooth, an experienced Puck.js programmer can iterate quickly and ship working prototypes in days rather than weeks.
Typical deliverables from a Puck.js consultant include:
A capable Puck.js developer works fluently across the Espruino ecosystem and the wider BLE and IoT toolchain. Look for proficiency with:
Adjacent skills worth checking for include general BLE firmware engineering on nRF52 chips, embedded JavaScript, IoT systems architecture, and front-end development for companion dashboards.
Puck.js is favored anywhere a small, battery-powered, programmable BLE node can solve a problem without the cost of a custom PCB. Common use cases include:
Strong candidates show evidence of shipping real BLE projects, not just toy examples. Look for a portfolio that includes Espruino code samples, GitHub repositories, video demos of working hardware, and case studies that explain power budgets, BLE range testing, and reliability over time.
Key signals to check:
Sample interview questions you can use directly:
Freelancer.com gives you access to a global pool of embedded JavaScript developers, BLE engineers, and IoT specialists who have hands-on Espruino and Puck.js experience. Because Puck.js sits at the intersection of firmware, web, and cloud, the breadth of talent available on Freelancer.com lets you match the exact mix of skills your project needs, whether that is a quick prototype or a production rollout.
Clients posting a project on Freelancer.com set their own budget and receive competitive bids, with transparent freelancer profiles, verified reviews, completion rates, and Milestone Payments that release funds only when work is approved. That combination of scale, vetted quality, and payment protection makes it a practical place to hire on Freelancer.com for niche skills like Puck.js.
Hiring a Puck.js developer follows a straightforward process on Freelancer.com. Because Puck.js projects sit between firmware, BLE, and cloud, a clear brief is what separates strong proposals from generic ones. The steps below show how to go from a project idea to an awarded contract.
Your project post is the single biggest factor in the quality of bids you receive. A precise brief filters for freelancers who genuinely understand Espruino, BLE, and the constraints of a coin-cell-powered device, rather than generalists guessing at the work. Head to the
Bids are short proposals, not just price quotes. A strong Puck.js proposal will show that the freelancer has read your brief and understands the BLE, power, and integration trade-offs, often raising clarifying questions that a generalist would miss. Read each proposal carefully and shortlist the candidates whose approach matches your scope.
The final decision combines proposal quality with profile evidence. For Puck.js work, consistency matters more than a single impressive demo, because BLE projects often expose their weaknesses only after extended battery and reliability testing. Weigh portfolio depth, written reviews, and verified credentials together.
Puck.js is a small, round, battery-powered Bluetooth Low Energy device that runs the Espruino JavaScript interpreter, so you can program it wirelessly using JavaScript. It is used for BLE beacons, wireless buttons, sensor nodes, accessibility tools, and rapid IoT prototyping where writing custom C firmware would be overkill.
If your project relies on Espruino, Web Bluetooth, or quick iteration in JavaScript, a Puck.js specialist will move much faster than a general embedded engineer learning the runtime from scratch. For deeply custom hardware or moving off Puck.js to a custom nRF52 board later, a freelancer with both Espruino and embedded C experience is ideal.
Yes. Most Puck.js engagements are short, focused prototypes such as a wireless trigger, a beacon configuration, or a demo for a pitch. Freelancers on Freelancer.com regularly take on small fixed-scope Puck.js builds and deliver working firmware along with documentation.
Puck.js cannot connect to Wi-Fi directly, but a Puck.js developer can build a gateway using a Raspberry Pi, a phone, or another BLE-capable device that forwards data to MQTT, a REST API, or an IoT platform. They can also build Web Bluetooth pages and native iOS or Android apps that pair with Puck.js directly.
Simple firmware tasks like a configurable beacon or a remote button can be completed in a few days. More involved builds with custom GATT services, gateway integration, and a dashboard typically run a few weeks depending on scope and testing requirements.

Freelancer Enterprise
Use our workforce of 89.1 million to help your business achieve more.

Freelancer API
Why hire people when you can simply integrate our talented cloud workforce instead?
Post a project today and get bids from talented freelancers
Get some inspiration from Puck.js projects

Game.
$50 USD in 9 days.

Package Design.
$110 USD in 4 days.

Music Video.
$300 USD in 12 days.

Interior Design.
$269 USD in 14 days.

Poster.
$100 USD in 3 days.

Flyer Design.
$15 USD in 1 day.

Concept Design.
$100 USD in 10 days.

Socials Post.
$50 USD in 6 days.
Millions of users, from small businesses to large enterprises, entrepreneurs to startups, use Freelancer to turn their ideas into reality.
89.1M
89.1M
Registered Users
25.7M
25.7M
Total Jobs Posted