Hire the Top 3% of DeFi Developers in 48 Hours

Toptal is a marketplace for top decentralized finance (DeFi) developers, engineers, programmers, coders, architects, and consultants. Top companies and startups choose Toptal DeFi freelancers for their mission-critical software projects.

Meet DeFi Developers in Our Exclusive Network

Featured Talent

Sylvain Vittecoq, Senior DeFi Programmer and Consultant.

Sylvain Vittecoq

Verified Expert in Engineering
27 Years of Experience

DeFi Developer

Sylvain's been a CTO, engineering manager, and senior software engineer in the US and Europe. He is a very hands-on, result-oriented expert in Java and solution definition and can work with anyone from engineers to C-level execs. Sylvain's delivered nationwide security infrastructures for millions of devices and connected millions of eCommerce users. Sylvain founded FileChain to offer next-generation blockchain platforms for large-scale Web 3.0, Industry 4.0, and NFT decentralized marketplaces.

Decentralized Finance (DeFi)Open Source DevelopmentJavaBlockchainNFTStartup DevelopmentSoftware DevelopmentCSSHTML5JavaScriptSpring BootREST APICTOs
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Alisson Reinaldo Silva, Accomplished DeFi Freelancer.

Alisson Reinaldo Silva

Verified Expert in Engineering
15 Years of Experience

DeFi Developer

Alisson is an engineering manager and certified AWS Solutions Architect with 15+ years of experience building software, leading technical teams for companies in the US, Europe, Asia, and South America, full-time and part-time as a contractor, for startups and Fortune 500 companies reporting to the C-suite. He's very interested in AI (he has a machine learning certificate from Stanford from the legendary Andrew Ng), games, and physics in general.

Decentralized Finance (DeFi)Node.jsJavaScriptC#React.jsAngularVue.jsMongoDBTypeScriptAWS LambdaAmazon S3AWSAWS RDS
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Jesper Kristensen, Expert DeFi Programmer for Hire.

Jesper Kristensen

Verified Expert in Engineering
8 Years of Experience

DeFi Developer

Jesper loves solving problems and helping develop next-generation engineering systems. He is motivated by a deep drive to create excellent solutions and aims to be challenged while moving companies forward. Jesper enjoys working on a budget and delivering on strict time restrictions—it's challenging and exciting.

Decentralized Finance (DeFi)SolidityPythonLinuxGitEthereumAWSJavaScriptDevOpsAgile DevelopmentBlockchainNFTSmart Contract Development
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Joseph Saw, Freelance DeFi Developer for Hire.

Joseph Saw

Verified Expert in Engineering
8 Years of Experience

DeFi Developer

Joseph is an experienced full-stack developer who has worked on various projects, including crypto payment solutions and decentralized yield tokenization and trading. In his spare time, he occasionally works on arbitrage bots and, most recently, created YouTube videos to provide education on smart contracts and solidity.

Decentralized Finance (DeFi)SoliditySmart Contract DevelopmentVue.jsTypeScriptJavaScriptEthereumWeb3.jsBlockchainjQueryWeb DevelopmentNFTCybersecurity
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Camilo Jiménez, Accomplished DeFi Freelancer.

Camilo Jiménez

Verified Expert in Engineering
18 Years of Experience

DeFi Developer

Camilo has over 15 years of experience leading and scaling products and engineering teams at startups of various sizes. He has been mentored at top accelerator programs such as Y Combinator and 500 Startups. he saw one of his startups acquired by Hopper Inc. in 2019. Camilo is also a seasoned software engineering professor at several universities.

Decentralized Finance (DeFi)AngularPythonNode.jsReact.jsJavaJavaScriptCTOsFull-stackBack-end DevelopersFintech DevelopmentAgile DevelopmentStartup Development
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Jerome Sonnet, Freelance DeFi Programmer for Hire.

Jerome Sonnet

Verified Expert in Engineering
24 Years of Experience

DeFi Developer

With 20+ years in finance, risk management, and IT, Jerome specializes in Odoo ERP architecture and project execution. He excels at designing and implementing scalable solutions and optimizing business processes with Agile development and cloud integration. He has led end-to-end Odoo deployments, engaged regulators, recruited strategic partners, and driven stakeholder alignment. As a full-stack IT engineer, Jerome ensures robust, efficient ERP systems that enhance operational performance.

Decentralized Finance (DeFi)PythonOdooFull-stackTypeScriptReact.jsWeb DevelopmentSoftware Architecture
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Abdul Rafehi, Freelance DeFi Developer for Hire.

Abdul Rafehi

Verified Expert in Engineering
10 Years of Experience

DeFi Developer

Abdul is a motivated full-stack engineer who loves all things tech, with extensive expertise across industries and tech stacks. Abdul has experience with C++, C#, Java, Python, TypeScript, Node.js, and web development. He enjoys difficult problems with extensive AI/ML, data processing, and algorithm development experience. He is comfortable building products from the ground up and has experience in companies of all sizes. Abdul is a believer in the benefits of TDD and well-architectured code.

Decentralized Finance (DeFi)C#TypeScriptJavaScriptAngularJavaNestJSNode.jsFull-stack
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Stephen Baden, Senior DeFi Programmer and Consultant.

Stephen Baden

Verified Expert in Engineering
14 Years of Experience

DeFi Developer

Stephen is a full-stack developer with over ten years of experience working professionally as a software engineer. Over the years, he has led the development of a diverse range of products across various industries. Stephen loves working with people to bridge the gap between idea and execution through technology and design.

Decentralized Finance (DeFi)Software DevelopmentDjangoPythonReact.jsJavaScriptPostgreSQLSQLREST APIFlaskCSSFintech DevelopmentServerless
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Kartik Bajaj, Freelance DeFi Developer for Hire.

Kartik Bajaj

Verified Expert in Engineering
10 Years of Experience

DeFi Developer

Kartik is a seasoned engineering leader with a strong technical foundation and experience across high-growth startups and established tech companies. In his most recent position as Co-founder and VP of Engineering at WonderFi, he was responsible for driving product engineering and development strategy and scaling engineering operations to support the company’s ambitions in the fintech and Web3 space.

Decentralized Finance (DeFi)Node.jsBlockchainSolidityReact.jsAPIJavaScriptWeb3.jsArtificial Intelligence
Hire Kartik
Zac Murray, Freelance DeFi Developer for Hire.

Zac Murray

Verified Expert in Engineering
9 Years of Experience

DeFi Developer

Zac is a full-stack developer skilled in a wide variety of technologies and business types. He has engineered architectural solutions for complex problems and delivered solutions to clients that transformed their businesses. Zac has worked in companies of different sizes, from small startups to some of the largest organizations in Australia, and is an excellent communicator and highly skilled technologist.

Decentralized Finance (DeFi)Windows DevelopmentVisual Studio DevelopmentWeb DevelopmentSoftware DevelopmentNode.jsTypeScriptAngularCSSBootstrapC#JavaScriptREST API
Hire Zac
Anitet Wheeler-Rose, DeFi Coder.

Anitet Wheeler-Rose

Verified Expert in Engineering
14 Years of Experience

DeFi Developer

Anitet demonstrated strong competitive programming skills during college, which led them straight to a job at Google. Since then, they've taken on the role of CTO for an early-stage startup. Besides software engineering, Anitet is interested in soccer, drawing, and creative writing, and enjoys creating simple solutions to complex problems.

Decentralized Finance (DeFi)C++JavaScript
Hire Anitet
Discover More DeFi Developers in the Toptal Network
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