Hire the top 3% of freelance smart contract developers.

Toptal is a marketplace for top smart contract developers, engineers, programmers, coders, architects, and consultants. Top companies and start-ups choose Toptal smart contract freelancers for their mission-critical software projects.
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Hire smart contract developers and engineers

Andras Fuchs, Hungary

Member since May 26, 2016
Andras is one of the very first Toptal certified Blockchain specialists and he's also a Microsoft Certified .NET Application Developer. He enjoys being part of a successful high performing team delivering a positive impact for businesses on a global scale. Besides hi... Click to continue

Amaury Martiny, France

Member since September 8, 2015
Amaury is a certified Toptal Blockchain engineer currently working at Parity Technologies, where he focuses on DApp development. He also has several years of experience building full-stack web and mobile apps (Node.js, React), and he writes open-source code. Amaury i... Click to continue

Máté Solymosi, Switzerland

Member since June 4, 2015
Máté is a full-stack software engineer with experience working on web applications and cloud systems of all sizes, from small greenfield projects of startups to complex legacy systems of large enterprises. He prides himself in designing scalable, future-proof archite... Click to continue

Fabrice Triboix, United Kingdom

Member since July 4, 2017
Fabrice is a cloud architect and software developer with 20+ years of experience who's worked for clients such as Cisco, Samsung, Philips, Alcatel, Sagem, etc. He specializes in designing secure, highly available, scalable, and cost-effective solutions on AWS. He's a... Click to continue

Aminadav Glickshtein, Israel

Member since May 26, 2016
Aminadav has 15+ years of professional experience and started coding at the age of seven, making programming like a native language for him. As a full-stack and blockchain architect, developer, and consultant, he has in-depth knowledge of many areas and possesses the... Click to continue

Antonios Minas, Greece

Member since December 5, 2014
Antonios is a senior software engineer specializing in front-end, WordPress, Blockchain technology, PHP, and JavaScript frameworks with more than eight years of professional experience spanning from the IT sector to digital advertising. He is passionate about applyin... Click to continue

Radek Ostrowski, Australia

Member since July 25, 2014
Radek is a certified Toptal Blockchain Engineer particularly interested in Ethereum and smart contracts. In the fiat world, he is experienced in big data/machine learning projects. He is a triple winner in two different international IBM Apache Spark competitions, co... Click to continue

Ryan Jurgensen, United States

Member since October 16, 2014
Ryan is a full-stack developer with eight years of experience who enjoys working on new, challenging projects. He has recently contributed to key projects for Google (Gmail, Wallet, City Experts) and the US Navy as well as a few startups. He has proven ability to arc... Click to continue

Andrii Soldatenko, Ukraine

Member since October 3, 2013
Andrii is a blogger and speaker as well as an expert back-end developer with Python/C and Golang. He has extensive knowledge of the Docker and Kubernetes. He also has an interest in databases; you can find his talks about full-text search and SQL optimization based i... Click to continue