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Etherscan is a leading Ethereum blockchain explorer and analytics platform . It allows users to search , verify , and interact with data on the Ethereum blockchain, including transactions , smart contracts , and wallet addresses . Developers use Etherscan's APIs to access blockchain data, monitor smart contracts, and build decentralized applications (dApps) . By leveraging Etherscan, businesses can gain insights into blockchain activities, audit transactions, and enhance their blockchain applications.
Looking to harness Ethereum's blockchain for your project? Hiring an Etherscan Developer on Freelancer is the best way to find a quality professional who can navigate blockchain data, develop smart contracts, and build decentralized applications. Freelancer has the widest range of Etherscan Developers for hire , ensuring you find the perfect match for your needs. Plus, with Freelancer's Milestone Payment system , you only pay when you're 100% satisfied with the work.
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.
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9.2
9.2
100%

BANGKOK, Thailand
$130 USD per hour
Hi, I’m Marjan, Website & Software Developer with 16 years of experience and 4,400+ successful projects delivered worldwide. I help businesses build fast, secure, professional and conversion-focused websites, eCommerce stores, custom web applications, booking systems, dashboards and scalable digital platforms. My expertise includes: • WordPress, Elementor & Custom Theme/Plugin Development • Shopify Store Design, Setup & Customization • Full-Stack Web Development • SaaS, MVP & Custom Web Application Development • Booking Funnels, Lead Generation Forms & Dashboards • PHP, JavaScript, HTML, CSS & API Integrations • Wix, Webflow & Business Website Development • Technical SEO, Speed Optimization & Website Maintenance What you can expect when working with me: • Clear and professional communication • Clean, maintainable and scalable work • Careful attention to detail • On-time delivery and long-term support Whether you need a business website, Shopify store, WordPress development, custom platform, SaaS MVP, booking funnel or ongoing website support, I can help you plan, build and launch it properly. Let’s discuss your project and create something that works for your business.

7.4
7.4
100%

Santa Cruz, Venezuela
$45 USD per hour
Hi, I'm an engineer with 10+ years of experience, specializing in Trading and Financial Software, Data Analysis and Data Science, and Full-Stack Web Development. My core expertise is in trading and finance. I build expert advisors (EAs), custom indicators, alerts, and trading bots, and I develop and backtest strategies across: * MetaTrader 4/5 (MQL4/5) * cTrader * TradingView (Pine Script) * NinjaTrader I also work on quantitative analysis, risk modeling, and machine learning applied to financial markets. Beyond trading, I bring strong full-stack and data engineering skills to a wide range of projects: * Programming: C/C++, C#, .NET, Python, Java, JavaScript * Web development: React, Node.js, HTML5/CSS/JS, REST APIs, third-party integrations * Data & analytics: data processing, statistical analysis, dashboards, automation (Python, R, Excel/Google Sheets) * Machine learning: model development, forecasting, NLP, and AI/LLM integrations Whether your project is a trading system, a web application, a data pipeline, or a custom tool in any of these languages, I focus on understanding your requirements clearly, delivering working and maintainable code, and keeping you informed throughout the process.

7.6
7.6
96%

Pakpattan, Pakistan
$50 USD per hour
🚀 Senior Full Stack Developer | Technical Project Manager | Solutions Architect Hello and welcome! I'm Ayaz Chishti, a Senior Full Stack Developer, Technical Project Manager, and Solutions Architect with 15+ years of experience leading software projects from concept to deployment. I help startups, SMEs, and enterprises build scalable digital products while ensuring projects are delivered on time, within scope, and aligned with business goals. My unique combination of hands-on development expertise and project leadership allows me to bridge the gap between business stakeholders and technical teams. 💡 Why Work With Me ✅ 15+ years of software development and project management experience ✅ Strong leadership of distributed and remote teams ✅ End-to-end product delivery expertise ✅ Agile & Scrum project management ✅ Clear communication with technical and non-technical stakeholders ✅ Focus on quality, scalability, and business outcomes ✅ Proven track record of delivering complex projects successfully 🔹 Technical Project Management 📋 Project Planning & Delivery • Agile & Scrum Methodologies • Sprint Planning & Backlog Management • Roadmap Development • Stakeholder Management • Requirements Gathering & Documentation • Risk Assessment & Mitigation • Team Coordination & Resource Planning • Product Development Lifecycle Management 🛠️ Technical Leadership • Development Team Management • Technical Architecture Reviews • Code Quality & Delivery Oversight • Vendor & Third-Party Coordination • DevOps & Deployment Planning • Product Strategy & Execution • Technical Documentation 💻 Full Stack Development • Python (Django, FastAPI, Flask) • LLM, RAG, vLLM, OpenAI API, LangChain, Docker • React.js, Next.js • Node.js & Express.js • PHP & Laravel • WordPress & WooCommerce • REST APIs & GraphQL • SaaS Platform Development • Enterprise Web Applications 🤖 AI, Automation & Emerging Technologies • AI-Powered Applications • OpenAI & LLM Integration • Business Process Automation • Data Analytics Solutions • Blockchain & Web3 Platforms • Cloud Infrastructure & DevOps ☁️ Cloud & Infrastructure • AWS & Azure • Docker & Kubernetes • CI/CD Pipelines • Linux Administration • High-Availability Architecture • Scalable Infrastructure Design 🎯 Industries & Solutions ✅ SaaS Platforms ✅ FinTech & Trading Systems ✅ E-Commerce Solutions ✅ AI Applications ✅ Blockchain Platforms ✅ Enterprise Portals ✅ Customer & Vendor Management Systems ✅ Automation & Workflow Platforms My approach combines strategic planning, technical expertise, and disciplined execution to ensure projects move efficiently from idea to successful launch while maintaining quality, budget, and timeline expectations. As a Full Stack Developer and Technical Project Manager, I manage teams, align stakeholders, make informed technical decisions, and actively participate in development to keep projects on track and delivered successfully.

8.9
8.9
98%

Indore, India
$15 USD per hour
I am Rahul, and over the past 10 years, I’ve worked across multiple technologies, delivering enterprise-level projects for clients across industries. While blockchain is my current USP, I also have strong experience in Web2 development, including custom solutions, backend management systems, service-based websites, mobile apps, and high-quality Figma/UI-UX design. My approach is highly organized. I start with a detailed discussion to understand your requirements, followed by sharing my suggestions based on my technical and domain expertise. Then, I provide a clear proposal document, discuss commercials, and move into smooth project execution. Let’s turn your idea into reality. Thank you. Rahul

6.3
6.3
98%

RAWALPINDI, Pakistan
$25 USD per hour
I'm an experienced Python programmer with more than 5 years of practical know-how in the exciting fields of artificial intelligence and machine learning. My strong interest in the latest technologies has motivated me to guide teams to successfully finish projects, providing outstanding solutions to clients all around the world. Over the course of my career, I have successfully contributed to numerous projects involving AI and machine learning. I have been entrusted with leading teams of developers, ensuring the projects are executed efficiently and meet the highest standards of quality. My ability to collaborate, communicate, and prioritize tasks has enabled my teams to close many projects on time and within budget. Skills: ✅ Python Development: Expertise in writing clean, efficient, and scalable Python code for diverse applications. ✅ Artificial Intelligence: Proficient in designing and implementing AI algorithms and models for various use cases. ✅ Machine Learning: Strong background in developing ML models, data preprocessing, and model evaluation. ✅ Robotics Process Automation (RPA): Knowledgeable in implementing RPA solutions to automate repetitive tasks. ✅ Algorithms: Skilled in creating and optimizing algorithms for complex problem-solving. ✅ NLP (Natural Language Processing): Proficient in harnessing NLP techniques to extract insights from textual data. ✅ Chatbots: Experience in building interactive and intelligent chatbot systems. ✅ Python Libraries: Familiarity with a wide range of Python libraries for data analysis, visualization, and more. ✅ Chatbots, ChatGPT-4, BaiChat, OpenAi, HuggingFace, Langchain, Auto-GPT ✅ Linux: Well-versed in Linux-based operating systems, including Kali Linux and Bash scripting. ✅ Distributions: Worked extensively with CentOS, Ubuntu, Fedora, RedHat, and other Linux distributions. ✅ Command Line: Proficient in command-line interfaces for seamless system management. I approach each project with dedication and an eagerness to find innovative solutions to complex challenges. My attention to detail and commitment to excellence enable me to deliver products that exceed client expectations. I am an avid learner, consistently staying up-to-date with the latest trends in the AI and ML realms, which empowers me to implement cutting-edge techniques into my work. I am excited to bring my extensive experience and passion for AI and Python development to your projects. Let's collaborate and turn your ideas into reality!

8.2
8.2
100%

Lahore, Pakistan
$50 USD per hour
I've 13+ years of programming experience. 5 years full-time freelance. 140+ web and mobile applications shipped with active userbases. I build secure, scalable, production-ready blockchain and full stack systems that solve real business problems. BLOCKCHAIN & WEB3 > Smart Contract Development in Solidity and Rust covering ERC20, ERC721, and ERC1155 standards. I deliver complete decentralized systems end to end. Smart Contract Engineering and Deployment > DeFi Protocol, Staking, and Yield Farming Development > NFT Marketplace Development with Minting, Trading, and Royalties > DEX and CEX Exchange Platform Development > Crypto Wallet Development, Custodial and Non-Custodial > Web3 Integration, Blockchain Security and Contract Auditing * Networks: Ethereum, Bitcoin, Solana, XRPL, Stellar, Hyperledger, Corda FULL STACK & BACKEND > Node.js, Laravel, Django, Flask, FastAPI, React.js, Next.js, REST API Development, Microservices Architecture, PostgreSQL, MySQL, MongoDB, Redis MOBILE DEVELOPMENT > React Native, Flutter, Swift, Kotlin, iOS and Android, Cross Platform Mobile Apps, Web3 Mobile Wallet Development, Mobile API Integration AI & ML INTEGRATION > OpenAI API Integration, GPT-based Product Development, Generative AI, Decision Tree, Random Forest, KNN, Linear Regression, Recommendation Engines, AI Automation Workflows CLOUD & DEVOPS > AWS, Google Cloud, Azure, Docker, CI/CD Pipelines, Server Security, Performance Optimization, Selenium, Scrapy, BeautifulSoup Data Pipelines I lead a team of engineers delivering large-scale Web3, fintech, and software platforms with a strong focus on architecture, security, and performance. Every project starts with proper planning and ships production-ready. I work with startups and enterprises to deliver Blockchain, Web3, AI, and Full Stack solutions designed for scale, security, and long term growth. Best Regards, KEYWORD INDEX Blockchain Developer, Smart Contract Developer, Solidity Developer, Rust Developer, DeFi Developer, NFT Marketplace Developer, Crypto Wallet Developer, DEX Developer, CEX Developer, Web3 Developer, Ethereum Developer, Solana Developer, Bitcoin Developer, XRPL Developer, Stellar Developer, Hyperledger Developer, Corda Developer, ERC20 Developer, ERC721 Developer, ERC1155 Developer, React Native Developer, Flutter Developer, iOS Developer, Android Developer, Full Stack Developer, Node.js Developer, Laravel Developer, Django Developer, Next.js Developer, React.js Developer, AWS Developer, Docker, PostgreSQL, MongoDB, OpenAI Integration, AI Developer, ML Developer, Microservices Developer, REST API Developer, Mobile App Developer, Fintech Developer, Web3 Mobile Wallet Developer

7.6
7.6
91%

Jaipur, India
$20 USD per hour
iSkylar Technologies was founded in 2012 with a mission to deliver reliable, scalable, and world-class IT solutions to clients across the globe. We have worked with startups, growing businesses, enterprises, and technology-driven companies, helping them build digital products that are practical, user-friendly, and built for long-term success. Our expertise includes custom software development, web and mobile app development, UI/UX design, AI/ML solutions, Generative AI chatbots, Salesforce, automation, API integrations, and digital marketing. In today’s AI-driven market, we help businesses adopt smarter technologies such as AI-powered workflows, intelligent automation, SaaS platforms, cloud systems, and data-driven applications. Our team of 80+ skilled professionals includes developers, designers, business analysts, AI engineers, QA specialists, and project managers. At iSkylar, we believe our client’s success is our success. We work with quality, commitment, passion, perseverance, and dedication to deliver solutions that create real business value. Let’s build something meaningful, scalable, and future-ready together.

5.6
5.6
90%

Ludhiana, India
$18 USD per hour
I build backend systems, automation workflows, and custom software that help businesses run faster and more reliably. Most of the work I take on involves fixing unstable systems, building internal tools, automating manual operations, integrating APIs, or turning messy MVPs into production-ready platforms. I’m comfortable working across: - Backend development & APIs - AI-assisted workflows and automation - FinTech/payment systems - CRM and admin platforms - Browser automation & scraping - Infrastructure/debugging - Web3 integrations when needed A lot of clients come to me when: - automation keeps breaking - APIs are unreliable - AI-generated code became messy - backend/frontend flows are unstable - payment/subscription logic has issues - systems need cleanup, restructuring, or scaling I care more about making systems actually work in production than writing overengineered code. I’m comfortable jumping into existing codebases, diagnosing problems quickly, and shipping practical solutions without unnecessary complexity.

6.6
6.6
97%

SKARDU, Pakistan
$15 USD per hour
As a Zoho Developer collaborating with multiple companies worldwide, I bring deep expertise in leveraging the Zoho ecosystem to design and implement smart, scalable, and automated business solutions. With extensive hands-on experience across Zoho CRM, Creator, Books, and Analytics, I specialize in custom app development, workflow automation, and data-driven reporting—empowering businesses to work smarter, not harder. My mastery of Deluge scripting and Zoho APIs enables me to create seamless custom integrations that enhance efficiency and unify business processes. Driven by innovation, I stay current with the latest Zoho advancements and best practices, ensuring every solution I deliver is robust, future-ready, and perfectly aligned with client goals. 💡 What I Deliver ✔️ Sales, Marketing & Collaboration Automation ✔️ Accounting & Finance (Zoho Books, Xero, QuickBooks) ✔️ Human Resource & IT Help Desk Management ✔️ Customer Service & Business Intelligence Dashboards ✔️ Custom Web Development: Laravel, CodeIgniter, WordPress, PHP, JavaScript, REST API ✔️ Third-Party Integrations: Zapier, Make (Integromat), Serviceminder, Current RMS, eZee, Dendreo, Twilio, RingCentral, CloudTalk, WordPress & more ✔️ Data Migration: XLS, XLSX, CSV, VCF ✔️ API Development & Custom Functions ✔️ Bookkeeping & Accounting Automation Whether you need a complete Zoho One setup, CRM-Books sync, custom Creator app, or API-based automation, I’m here to build tailored solutions that streamline your operations and maximize productivity. Let’s transform your business with the full power of Zoho.
An Etherscan developer is a blockchain engineer who uses Etherscan's APIs, contract verification tools, and on-chain data to build, debug, and audit Ethereum smart contracts and decentralized applications. These specialists translate raw blockchain activity into readable, actionable information for projects launching tokens, NFTs, DeFi protocols, and Web3 platforms on Ethereum and EVM-compatible chains.
Hiring an Etherscan developer gives your project access to someone fluent in Solidity, contract verification workflows, and the Etherscan ecosystem of explorers including BscScan, Polygonscan, Arbiscan, and Optimistic Etherscan. Whether you need a token contract verified with a green check mark, a custom dashboard pulling on-chain data, or forensic tracing of suspicious wallet activity, an Etherscan expert delivers the technical depth and transparency Web3 buyers expect.
Etherscan developers handle every stage of contract publication and on-chain integration. Their work directly affects how users, exchanges, and auditors perceive a project, since a verified, well-documented contract on Etherscan is often the first trust signal investors check.
A capable Etherscan developer works fluently across the standard Ethereum development stack and the explorer family. Expect proficiency with the following:
Etherscan developers serve any team operating on Ethereum or an EVM-compatible chain. Common engagements include DeFi protocols verifying staking and vault contracts, NFT studios publishing collections with proper metadata, GameFi projects launching in-game tokens, DAOs deploying governance modules, and crypto exchanges that require verified contracts before listing. They also support compliance teams, legal firms, and security researchers who rely on Etherscan data for AML investigations, rug pull post-mortems, and asset recovery cases.
Strong candidates show a public history of verified contracts on Etherscan, ideally linked to live mainnet deployments. Review their GitHub for Solidity work, check for completed audits or bug bounty reports, and confirm they understand gas optimization, reentrancy patterns, and proxy storage layouts. Tool proficiency should extend beyond deployment into ABI encoding, event indexing, and API rate-limit handling.
Useful interview questions include:
Freelancer.com gives you direct access to a global network of blockchain engineers experienced with Ethereum, Layer 2 rollups, and the full Etherscan family of explorers. You can review verified portfolios, on-chain deployment histories, ratings, and client reviews before awarding any project. Clients set their own budgets and receive competitive bids, with Milestone Payments holding funds securely until each deliverable is approved. Whether your project is a one-off contract verification or a long-term Web3 build, freelancers on Freelancer.com cover every time zone and specialization in the Ethereum ecosystem.
Hiring an Etherscan developer is straightforward when your brief clearly defines the contracts, chains, and integrations involved. The clarity of your project post determines the quality of bids you receive and how quickly the right specialist can begin work. The process below walks through posting, reviewing bids, and awarding the project.
Your project brief is the single biggest determinant of bid quality. A well-scoped Etherscan project tells freelancers exactly which contracts need to be verified, which chains are involved, and what integrations or dashboards you expect. Head to the
Bids on Freelancer.com are short proposals, not just price quotes. A strong Etherscan developer will respond with relevant questions about your compiler settings, proxy pattern, or constructor arguments, signaling that they have read the brief and understood its technical depth. Use the chat to clarify approach before shortlisting.
Final selection should weigh proposal quality alongside profile evidence. For Etherscan work, the most reliable signal is a portfolio of live, verified contracts and consistent reviews from past Web3 clients. Look for steady performance across multiple projects rather than a single standout deployment.
A Solidity developer writes and tests smart contracts, while an Etherscan developer focuses on publishing, verifying, and integrating those contracts with Etherscan's explorer and APIs. Most Etherscan developers are also Solidity developers, but the role emphasizes deployment transparency, on-chain data access, and explorer-level user experience.
Verification is not technically required to deploy, but it is essential for credibility. Exchanges, aggregators, and most users will not interact with an unverified contract, and a verified source code listing on Etherscan is a baseline expectation for token launches, NFT mints, and DeFi protocols.
Yes. Etherscan operates explorers for BNB Chain, Polygon, Arbitrum, Optimism, Base, Avalanche, and several other EVM networks, all sharing the same verification and API patterns. A skilled Etherscan developer can verify and integrate contracts across any of these chains.
Simple ERC-20 verifications can be completed within hours, while complex multi-contract systems with proxies, libraries, and custom compiler settings may take a few days. Timelines depend on source availability, compiler version matching, and whether the project requires additional dashboard or API integration work.
For verification, deployment, and on-chain integration work, a freelancer is usually the right fit. For comprehensive security audits before mainnet launch, you may want to combine freelance engineering with a specialized audit firm, since the two services address different risks.

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