Hire the Top 3% of Web3 Developers in 48 Hours

Hire vetted Web3 developers, consultants, architects, experts, programmers, and developers on demand. Leading companies choose Web3.js freelancers from Toptal for their most important development projects.

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Featured Talent

Imi Kim, Freelance Web3.js Engineer.

Imi Kim

Verified Expert in Engineering
16 Years of Experience

Web3 Developer

Imi is a seasoned developer with over 30 years of experience leading and implementing systems to solve complex business problems. He has solid expertise in blockchains, mathematical and back-end coding, machine learning, trading, and systems design. Imi can help create a highly efficient version of whatever system a client is working on.

Web3.jsC#
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Julian Cislo, Web3.js Coder.

Julian Cislo

Verified Expert in Engineering
5 Years of Experience

Web3 Developer

Julian is a full-stack Web 3.0 developer and consultant. He specializes in solidity smart contracts design, development, and security considerations. He has founded QuantDeFi, a consulting company in the blockchain space that offers to solve all Web 3.0-related problems for clients looking to integrate blockchain solutions. Julian also features his skills in transaction automation, having constructed arbitrage and liquidation bots utilizing flash-loan technologies.

Web3.jsWindows DevelopmentTypeScriptSolidityJavaScriptBlockchainReact.jsEthereumDecentralized Finance (DeFi)Node.jsNFTPythonFull-stack
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Yashveer Rana, Web3.js Coder.

Yashveer Rana

Verified Expert in Engineering
13 Years of Experience

Web3 Developer

Yashveer boasts over a decade of experience crafting and optimizing software for dynamic startups and large established enterprises, with a sharp focus on scalability. As a co-founder and CTO of an AI-driven fintech company, he designed a product that supports 400,000 users monthly. Skilled in Java and Node.js, Yashveer relies on these tools for development, while music fuels his energy during intense coding sessions.

Web3.jsNode.jsMySQLJavaJavaScriptWeb ScrapingREST APIPrompt EngineeringOpenAI
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Éric Lamontagne, Senior Web3.js Programmer and Consultant.

Éric Lamontagne

Verified Expert in Engineering
25 Years of Experience

Web3 Developer

Éric has 23 years of software development experience since obtaining his bachelor's degree in software engineering. He has created a software development consultancy, founded a startup, and published mobile apps in Apple's App Store. He is certified in blockchain and is a Microsoft Certified Solution Developer (MCSD). Éric has worked with organizations of all sizes, from successful startups to corporations in the transportation, media, energy, aeronautics, insurance, and financial sectors.

Web3.jsJavaScriptGitSoftware DevelopmentWeb Development
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Dee Acharjya, Senior Web3.js Programmer and Consultant.

Dee Acharjya

Verified Expert in Engineering
26 Years of Experience

Web3 Developer

Dee is a full-stack engineer with experience leading teams and providing hands-on coding for scalable solutions. He has contributed to projects in diverse industries, including document management, blockchain, legal, and telecommunications, becoming highly proficient in Node.js, NestJS, React, Next.js, GraphQL, .NET, and C#. Dee is also adept at managing SQL and NoSQL databases and deploying CI/CD pipelines using GitHub Actions, Docker, and Kubernetes.

Web3.jsNode.jsReact.jsDockerKubernetesSoftware ArchitectureBlockchainDevOpsMongoDBNext.jsRDBMSNoSQLEnterprise Development
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Luciano Greiner dos Santos, Freelance Web3.js Programmer for Hire.

Luciano Greiner dos Santos

Verified Expert in Engineering
18 Years of Experience

Web3 Developer

Luciano is a seasoned professional with a decade and a half of experience developing Java enterprise applications. Currently, he's focused on big-data technologies such as Spark, Cassandra, Kafka, and Elasticsearch. He's capable of working as a full-stack engineer, having also worked with JavaScript and AngularJS in the past. Luciano is also fluent in English, has a native level in Portuguese, and has basic Spanish speaking abilities.

Web3.jsKubernetesDockerAWSJSONElasticsearchBig Data ArchitecturePythonEnterprise DevelopmentAngularJSSpringHTML5Web Development
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Kaustav Chakraborty, Web3.js Freelancer.

Kaustav Chakraborty

Verified Expert in Engineering
23 Years of Experience

Web3 Developer

Kaustav is a hands-on, goal-oriented, versatile technology professional with more than two decades of experience, primarily in open-source digital technologies, such as blockchain, IoT, microservices, cloud, distributed architecture, R&D, design, and development, with a proven track record delivering consistent business results. He loves to take on technical challenges, learn about new technology innovations, and deliver successful products worldwide.

Web3.jsJavaSpring BootEthereumApache KafkaSpringMicroservices DevelopmentNode.jsSolidityDatabaseFintech DevelopmentCI/CDGraphQL
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Kartik Bajaj, Freelance Web3.js Developer for Hire.

Kartik Bajaj

Verified Expert in Engineering
10 Years of Experience

Web3 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.

Web3.jsNode.jsBlockchainSolidityReact.jsAPIJavaScriptArtificial Intelligence
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Jerome Sonnet, Freelance Web3.js Programmer for Hire.

Jerome Sonnet

Verified Expert in Engineering
24 Years of Experience

Web3 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.

Web3.jsPythonOdooFull-stackTypeScriptReact.jsWeb DevelopmentDecentralized Finance (DeFi)Software Architecture
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Robert Keyan, Accomplished Web3.js Freelancer.

Robert Keyan

Verified Expert in Engineering
10 Years of Experience

Web3 Developer

For over ten years, Robert honed his skills in developing web applications using the MER(A)N-stack. His journey spans collaborations with diverse teams and enterprises, bridging continents with remote collaborations in various industries across Germany, Russia, the US, and Israel. Robert's focus has evolved into a multifaceted leadership role in recent years. Beyond coding, he has embraced the challenge of guiding and managing teams of developers while architecting a technological solution.

Web3.jsJavaScriptNode.jsReact.jsNestJSHTML5CSSTypeScriptReduxGitREST APIFront EndTailwind CSS
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Dan Field, Expert Web3.js Programmer for Hire.

Dan Field

Verified Expert in Engineering
18 Years of Experience

Web3 Developer

Dan is a software engineer and architect with almost three decades of experience in startups spanning consumer tech, web, eCommerce, mobile, Internet of things (IoT), Internet service providers (ISPs), telco, and blockchain industries. He is an innovator and technical lead with the ability to work across multiple industries, technologies, and levels. With solid experience developing new technologies, Dan can quickly climatize to new projects.

Web3.jsSolidityTypeScriptJavaNode.jsReact.jsSQLPostgreSQLRustBig Data ArchitectureDatabaseCloud EngineeringRedis
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Discover More Web3 Developers in the Toptal Network
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Why Organizations Choose Toptal®

Toptal gave us access to the best designers out there, saving us a lot of time and allowing us to build the best possible product.

Thierry JakircevicGeneral Manager, Digital Solutions, Bridgestone

Toptal’s talent is really excellent. They are able to work through large business problems and code incredibly efficiently.

Emily LemonSenior Director, Cleveland Cavaliers

The kind of people we looked for were hard to find. Toptal helped us achieve our goals by bringing high quality resources to bear on very short notice.

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If you’ve tried working with other vendors, Toptal is going to be a different type of company to work with; they’re going to meet you where your needs are.

Matthew SchumacherSenior Product Manager, Alpha - Precision Drilling

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