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Top freelance Web3 developers available to hire

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Freelance Web3 Developer - SALAKO TESLIM
Freelance Web3 Developer5.0 (33 reviews)

Seasoned Web Developer and Blockchain enthusiast with a proven track record in the IT and services industry. Expertise in Research, PHP, HTML, JavaScript, and Blockchain development, including Smart Contracts. Skilled in automation, application testing, and cybersecurity analysis for web and mobile apps.

Freelance Web3 Developer - Jude Nwafor
Freelance Web3 Developer5.0 (166 reviews)

I am currently employed as a frontend lead at Cyberspace. I’m hands on in all stages of software development cycle, from planning and design to testing and deployment. Jude is passionate about algorithms analysis, bug fixes, brainstorming ideas, integrating and building new systems

Freelance Web3 Developer - Sergey
Freelance Web3 Developer5.0 (192 reviews)

Senior engineer with 15 years of experience in different areas I can help you with: - Any CSS & HTML issue - JavaScript debugging, fixing errors, writing new features etc - WordPress adjustments, custom hooks, plugins - Shopify code help, theme editing, new features - Google Spreadsheets formulas - Firebase issues - Node.js, PHP & Python scripts - And even more, I'm good in google & problem solving

Freelance Web3 Developer - Emmanuel Samson
Freelance Web3 Developer5.0 (9 reviews)

Hi 👋, I'm a resilient software developer who is forward-thinking, loves to share knowledge to help others and strongly values good relationships. I love paying attention to every detail and can communicate effectively in simple clear terms, especially when it has to do with simple or complex concepts. I keep it simple always, as this will speed up the delivery of any task, in record time, by also eliminating unecessary back and forths. I’m also very passionate about crafting products that people love, and have strong knowledge in working with external APIs and integration with 3rd party APIs. I care about making the customers happy, by providing services focused on: testing, accessibility, teamwork and code quality. My domain specific skills covers: HTML | CSS | jQuery | Ajax | JavaScript | PHP | Codeigniter | React.js | Next.js | Backend APIs | MySQL | MongoDB | AWS | Digital ocean | GCP | CI/CD | Test Driven Development (TDD) | Blockchain | Web3 | Smart contract | Hard Hat | Meta Mask | Soft skills: | Effective Communication | Leadership | Teaching | Writing Articles | Always kind | I love writing articles that provide help for common coding challenges and they are available here: https://dev.to/emmabase. If you're ready to grow, learn, and overcome obstacles in your coding journey, I'm excited to help you achieve your goals! Please, feel free to reach out to me with your app ideas/requirements and together we could make something pretty awesome ❤️

Freelance Web3 Developer - Mandili Shilpa Dora
Freelance Web3 Developer5.0 (2 reviews)

**Full refund if the issue was not resolved** Will be able to guide topics based on system design, data structures, databases, networking , web / app development , scaling your code to millions of requests. # Quick Guide for a Software Engineer https://www.codementor.io/@shilpadora/quick-guide-for-a-software-engineer-wuohz9ihe

Freelance Web3 Developer - Kostychev Konstantin
Freelance Web3 Developer

Innovative and results-driven Senior Full Stack & Blockchain & AI/ML developer with over 11 years of experience designing and developing high-performance, scalable, and AI-powered web applications. Expertise in AI/ML, Python, Solidity, Golang, Node.js, and JavaScript, Smart Contract, with a strong background in React.js, Angular, TypeScript, and Django. Adept at creating complex, data-driven visualizations, optimizing cloud-based architectures, and developing real-time applications for industries such as FinTech, AI, Blockchain, Cloud Platforms, and DevOps. Experienced in microservices architecture, API integrations, distributed systems, and cloud-native development. Passionate about problem-solving, scalability, and developing cutting-edge AI-powered applications that drive business success.

Freelance Web3 Developer - Andrii K
Freelance Web3 Developer

I’m Andrii, a Helsinki-based smart-contract engineer with 12 + years in software and 4 + years building production DeFi. My code currently secures multi-million TVL on Ethereum mainnet and leading L2s (Arbitrum, Base, Gnosis, Avalanche), spanning stable-value assets, isolated money-markets, BTC-backed synthetics and DEX governance contracts. By pairing a formal economics background with hands-on risk modelling, I translate financial theory into gas-efficient, audit-ready Solidity. ### How I can help you - Tokenomics & RWA design — fixed-rate lending, collateral ratios, fee models - Solidity mastery — Foundry/Hardhat, upgradeable patterns, security best practices - Audit-prep & reviews — guest auditor at yAudit; threat modelling & test coverage - Data-driven risk models — Python/Go/Rust back-ends, on-chain/off-chain analytics - DevOps for Web3 — AWS / GCP, Terraform, CI pipelines for seamless deployments ### Mentoring style Concise, actionable feedback (usually < 24 h), annotated code reviews, and live white-board sessions where we turn economic assumptions into provable smart contracts. Whether you’re launching a new protocol or refining an existing one, I’ll help you build with confidence and economic rigor.

Freelance Web3 Developer - Majid Kareem
Freelance Web3 Developer5.0 (193 reviews)

I'm a Full Stack Developer with over six years (6+) of experience, and I've spent the last two (2+) years diving deep into Solidity and web3.0 development. Along the way, I've developed a strong passion for blockchain and emerging technologies. Recently, I added a new dimension to my skill set by earning a Project Management Certification from PMI and gaining some hands-on experience managing projects. Now, I'm blending my technical chops with strategic project oversight, which has been incredibly rewarding. I'm always curious and eager to learn, especially when it comes to tech that’s shaping our future. Blockchain and AI, in particular, have caught my eye because of their potential to revolutionize the open internet and how we build software. If you’re curious about what I’m working on, feel free to check out my [profile on Codementor](https://www.codementor.io/@majidk) Whether you want to chat about a project, collaborate, or just exchange ideas, don’t hesitate to reach out. I’d love to connect!

Freelance Web3 Developer - Kumar Raja Gattamaneni
Freelance Web3 Developer5.0 (204 reviews)

I am a seasoned IT professional with extensive expertise in Python and JavaScript development, proficiently delivering scalable and efficient solutions. My proficiency extends to DevOps practices, where I excel in automating deployment pipelines, ensuring seamless integration, and enhancing overall efficiency. Leveraging cloud technologies, I specialize in designing and implementing robust, scalable, and secure solutions on major cloud platforms. With a solid foundation in both development and DevOps, I bring a holistic approach to building and maintaining cutting-edge applications in cloud environments.

Freelance Web3 Developer - Edax Filander Ucles Hernandez
Freelance Web3 Developer5.0 (111 reviews)

Hi, my name is Edax, I'm a web developer with over 11 years in software development. Actually, I'm focusing on ReactJs, NodeJs & MongoDB. ex-founder and developer of this company [chekku.co](http://chekku.co/). Accomplished a challenge to become the first person in my country to go to an international startup program in 2018 based in Chile. Perfect rating on https://www.codementor.io/@edaxfilanderucleshernandez

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Frequently asked questions

How long do Web3 projects normally take?

The length of a project depends on many factors, including the scope of your project and the technical complexity of it. When you post a freelance Web3 project request on Codementor, you’ll have the option to indicate when you’d expect the project to be completed. We suggest chatting with the interested developers to ensure both sides are on the same page. For more information on how to post a freelance Web3 request on Codementor, check out our article.

How much does it cost to hire a freelance Web3 developer?

We don’t charge anything when you post a freelance hiring request for Web3 developers! You’ll have the chance to determine what the budget for your project is when you post the request. You’ll only need to pay the developer if you’re 100% satisfied with their work. Please know that Codementor charges a small service fee when a developer completes the job.

What makes Codementor Web3 developers different?

We do a comprehensive technical and communications screen of all Web3 developers at Codementor. Our network includes book authors, popular open source contributors, top Stack Overflow users and engineers at top tech companies. In addition, to continually ensure the quality of our freelancers, we regularly check in on existing Web3 developers’ user satisfaction rates.

What happens if I’m not happy with the freelancer’s work?

As a platform, we strive to ensure you’re always happy with your Web3 project’s results. If you’re unsatisfied with the results, you can choose to get a refund for the project. Additionally, you can contact our support team should you need any further assistance with your project.

For more answers to frequently asked questions, see here.

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