Smart Contract

Hire the Top 3% of Freelance Smart Contract Developers

Toptal is a marketplace for top Smart Contract developers and coders. CEOs, CTOs, and management at top companies and startups work with Toptal Smart Contract freelancers to augment their development teams for Smart Contract development, app development, web development, and other software development projects to achieve their business needs.

No-Risk Trial, Pay Only If Satisfied.

Hire Freelance Smart Contract Developers and Engineers

Fabrice Triboix

Freelance Smart Contract Developer
United KingdomToptal Member Since September 6, 2017

Fabrice is a cloud architect, DevOps engineer, and software developer with 20+ years of experience. He worked for clients such as Cisco, Topps, MyDocSafe, Armedia, and various UK government agencies. He specializes in designing secure, highly available, scalable, and cost-effective solutions on AWS and Kubernetes. Fabrice also assumed managerial positions in the past as a team leader and release manager. He is very keen on automation, IaC, and CI/CD and can code in Python.

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Aminadav Glickshtein

Freelance Smart Contract Developer
IsraelToptal Member Since September 26, 2017

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 ability to code quickly and efficiently. During the past ten years, his primary focus has been on full-stack development. StackOverflow rated him at the top 1% of developers.

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Radek Ostrowski

Freelance Smart Contract Developer
ThailandToptal Member Since September 24, 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 and machine learning projects. He is a triple winner in two different international IBM Apache Spark competitions, co-creator of PlayStation 4's back end, a successful hackathon competitor, and a speaker at conferences in Australia, Poland, and Serbia.

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Sylvain Vittecoq

Freelance Smart Contract Developer
SwedenToptal Member Since August 17, 2022

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.

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Stefan Batalka

Freelance Smart Contract Developer
United KingdomToptal Member Since October 11, 2022

Stefan is a distributed ledger technology expert with a background in financial applications and deploying algorithmic trading models on centralized exchanges. Since the advent of decentralized finance, his focus has shifted to on-chain trading and maximal extractable value (MEV), particularly in the Ethereum ecosystem. Stefan is comfortable with the Ethereum virtual machine (EVM) networking stack, including core protocol details, node codebases, Solidity, and smart contract development.

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Kaustav Chakraborty

Freelance Smart Contract Developer
IndiaToptal Member Since October 9, 2021

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.

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Darshan Tejani

Freelance Smart Contract Developer
IndiaToptal Member Since March 11, 2022

Darshan is a full-stack and blockchain architect, developer, and consultant with seven years of experience. His entrepreneur career taught him to code quickly, whether extending and improving an existing project or developing a new one from scratch. Darshan moves smoothly between technologies, works efficiently, and enjoys helping and mentoring other team members.

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Julian Cislo

Freelance Smart Contract Developer
CanadaToptal Member Since October 6, 2022

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.

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Michał Mirończuk

Freelance Smart Contract Developer
PolandToptal Member Since October 3, 2022

Michał is an experienced blockchain and full-stack developer with a 6-year tenure in the crypto realm. He's skilled in diverse projects like ICO websites, NFT marketplaces, and Hyperledger Fabric solutions. His forte lies in user-friendly interfaces using React and Next.js, smart contract creation, and ERC-721 token implementation. Michał has significantly contributed to developing token economies, dApps, and cloud applications, ensuring secure, reliable, and intuitive blockchain solutions.

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Robert Pardela

Freelance Smart Contract Developer
PolandToptal Member Since October 7, 2022

Robert is an entrepreneur, IT manager, and developer specializing in blockchain. He has spearheaded dozens of large-scale projects, teams of over 40, and a budget of $30 million to deliver nationwide systems. Blockchain inspired him and changed the way he looked at IT systems. Robert is known for his innovation and strong ability to take a project from idea to successful implementation. He enjoys creating IoT solutions on Raspberry Pi and Arduino as a hobby.

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Dominik Krížo

Freelance Smart Contract Developer
SlovakiaToptal Member Since August 9, 2021

Dominik is a highly skilled and experienced developer who has been programming since 13. With a strong foundation in object-oriented programming, he pursued further education in the field, finishing his bachelor's degree in informatics and eventually landed a role as an Android developer, working with Java and Kotlin. However, Dominik's passion for innovation and decentralization led him to explore the emerging field of blockchain development, where he has become an expert in Rust and WASM.

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... allows corporations to quickly assemble teams that have the right skills for specific projects.

Despite accelerating demand for coders, Toptal prides itself on almost Ivy League-level vetting.

Our clients
Creating an app for the game
Conor Kenney
Creating an app for the game
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Leading a digital transformation
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Building a cross-platform app to be used worldwide
Drilling into real-time data creates an industry game changer
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What our clients think
Clients Rate Toptal Smart Contract Developers4.3 / 5.0on average across 108 reviews as of Feb 3, 2024
Testimonials

Tripcents wouldn't exist without Toptal. Toptal Projects enabled us to rapidly develop our foundation with a product manager, lead developer, and senior designer. In just over 60 days we went from concept to Alpha. The speed, knowledge, expertise, and flexibility is second to none. The Toptal team were as part of tripcents as any in-house team member of tripcents. They contributed and took ownership of the development just like everyone else. We will continue to use Toptal. As a startup, they are our secret weapon.

Brantley Pace, CEO & Co-Founder

Tripcents

I am more than pleased with our experience with Toptal. The professional I got to work with was on the phone with me within a couple of hours. I knew after discussing my project with him that he was the candidate I wanted. I hired him immediately and he wasted no time in getting to my project, even going the extra mile by adding some great design elements that enhanced our overall look.

Paul Fenley, Director

K Dunn & Associates

The developers I was paired with were incredible -- smart, driven, and responsive. It used to be hard to find quality engineers and consultants. Now it isn't.

Ryan Rockefeller, CEO

Radeeus

Toptal understood our project needs immediately. We were matched with an exceptional freelancer from Argentina who, from Day 1, immersed himself in our industry, blended seamlessly with our team, understood our vision, and produced top-notch results. Toptal makes connecting with superior developers and programmers very easy.

Jason Kulik, Co-Founder

ProHatch

As a small company with limited resources we can't afford to make expensive mistakes. Toptal provided us with an experienced programmer who was able to hit the ground running and begin contributing immediately. It has been a great experience and one we'd repeat again in a heartbeat.

Stuart Pocknee , Principal

Site Specific Software Solutions

We used Toptal to hire a developer with extensive Amazon Web Services experience. We interviewed four candidates, one of which turned out to be a great fit for our requirements. The process was quick and effective.

Abner Guzmán Rivera, CTO and Chief Scientist

Photo Kharma

Sergio was an awesome developer to work with. Top notch, responsive, and got the work done efficiently.

Dennis Baldwin, Chief Technologist and Co-Founder

PriceBlink

Working with Marcin is a joy. He is competent, professional, flexible, and extremely quick to understand what is required and how to implement it.

André Fischer, CTO

POSTIFY

We needed a expert engineer who could start on our project immediately. Simanas exceeded our expectations with his work. Not having to interview and chase down an expert developer was an excellent time-saver and made everyone feel more comfortable with our choice to switch platforms to utilize a more robust language. Toptal made the process easy and convenient. Toptal is now the first place we look for expert-level help.

Derek Minor, Senior VP of Web Development

Networld Media Group

Toptal's developers and architects have been both very professional and easy to work with. The solution they produced was fairly priced and top quality, reducing our time to launch. Thanks again, Toptal.

Jeremy Wessels, CEO

Kognosi

We had a great experience with Toptal. They paired us with the perfect developer for our application and made the process very easy. It was also easy to extend beyond the initial time frame, and we were able to keep the same contractor throughout our project. We definitely recommend Toptal for finding high quality talent quickly and seamlessly.

Ryan Morrissey, CTO

Applied Business Technologies, LLC

I'm incredibly impressed with Toptal. Our developer communicates with me every day, and is a very powerful coder. He's a true professional and his work is just excellent. 5 stars for Toptal.

Pietro Casoar, CEO

Ronin Play Pty Ltd

Working with Toptal has been a great experience. Prior to using them, I had spent quite some time interviewing other freelancers and wasn't finding what I needed. After engaging with Toptal, they matched me up with the perfect developer in a matter of days. The developer I'm working with not only delivers quality code, but he also makes suggestions on things that I hadn't thought of. It's clear to me that Amaury knows what he is doing. Highly recommended!

George Cheng, CEO

Bulavard, Inc.

As a Toptal qualified front-end developer, I also run my own consulting practice. When clients come to me for help filling key roles on their team, Toptal is the only place I feel comfortable recommending. Toptal's entire candidate pool is the best of the best. Toptal is the best value for money I've found in nearly half a decade of professional online work.

Ethan Brooks, CTO

Langlotz Patent & Trademark Works, Inc.

In Higgle's early days, we needed the best-in-class developers, at affordable rates, in a timely fashion. Toptal delivered!

Lara Aldag, CEO

Higgle

Toptal makes finding a candidate extremely easy and gives you peace-of-mind that they have the skills to deliver. I would definitely recommend their services to anyone looking for highly-skilled developers.

Michael Gluckman, Data Manager

Mxit

Toptal’s ability to rapidly match our project with the best developers was just superb. The developers have become part of our team, and I’m amazed at the level of professional commitment each of them has demonstrated. For those looking to work remotely with the best engineers, look no further than Toptal.

Laurent Alis, Founder

Livepress

Toptal makes finding qualified engineers a breeze. We needed an experienced ASP.NET MVC architect to guide the development of our start-up app, and Toptal had three great candidates for us in less than a week. After making our selection, the engineer was online immediately and hit the ground running. It was so much faster and easier than having to discover and vet candidates ourselves.

Jeff Kelly, Co-Founder

Concerted Solutions

We needed some short-term work in Scala, and Toptal found us a great developer within 24 hours. This simply would not have been possible via any other platform.

Franco Arda, Co-Founder

WhatAdsWork.com

Toptal offers a no-compromise solution to businesses undergoing rapid development and scale. Every engineer we've contracted through Toptal has quickly integrated into our team and held their work to the highest standard of quality while maintaining blazing development speed.

Greg Kimball, Co-Founder

nifti.com

How to Hire Smart Contract Developers through Toptal

1

Talk to One of Our Industry Experts

A Toptal director of engineering will work with you to understand your goals, technical needs, and team dynamics.
2

Work With Hand-Selected Talent

Within days, we'll introduce you to the right Smart Contract developer for your project. Average time to match is under 24 hours.
3

The Right Fit, Guaranteed

Work with your new Smart Contract developer for a trial period (pay only if satisfied), ensuring they're the right fit before starting the engagement.

Find Experts With Related Skills

Access a vast pool of skilled developers in our talent network and hire the top 3% within just 48 hours.

FAQs

  • How are Toptal Smart Contract developers different?

    At Toptal, we thoroughly screen our Smart Contract developers to ensure we only match you with talent of the highest caliber. Of the more than 100,000 people who apply to join the Toptal network each year, fewer than 3% make the cut. You’ll work with engineering experts (never generalized recruiters or HR reps) to understand your goals, technical needs, and team dynamics. The end result: expert vetted talent from our network, custom matched to fit your business needs.

  • Can I hire Smart Contract developers in less than 48 hours through Toptal?

    Depending on availability and how fast you can progress, you could start working with a Smart Contract developer within 48 hours of signing up.

  • What is the no-risk trial period for Toptal Smart Contract developers?

    We make sure that each engagement between you and your Smart Contract developer begins with a trial period of up to two weeks. This means that you have time to confirm the engagement will be successful. If you’re completely satisfied with the results, we’ll bill you for the time and continue the engagement for as long as you’d like. If you’re not completely satisfied, you won’t be billed. From there, we can either part ways, or we can provide you with another expert who may be a better fit and with whom we will begin a second, no-risk trial.

  • What type of talent does Toptal have?

    Our platform hosts a very diverse range of skill sets, experiences, and backgrounds. Our freelancers range from software engineers, user experience designers, project management experts, and product managers to finance experts who have worked at leading companies such as Google, Microsoft, Amazon, and many more.

  • What other services does Toptal provide?

    Besides our talent matching services, we also provide web and application development services like a development company. Through our Toptal Projects team, we assemble cross-functional teams of senior project managers, web developers, app developers, user interface designers, and other technical skills. Our team members follow a well-defined development process to build a fully functional solution.

Tap Into World-Class Talent

  • Trusted Experts Only

    Trusted Experts Only

    All of our talent are seasoned experts who ramp up quickly, readily contribute as core team members, and work with you to minimize onboarding time.

  • The Right Fit

    The Right Fit

    We have a knack for matching you with the right fit. Start working with your new hire on a no-risk trial period, paying only if satisfied.

  • Scale as Needed

    Scale as Needed

    Hire talent within 48 hours and scale your team up or down as needed, no strings attached.

  • Seamless Hiring

    Seamless Hiring

    We handle all aspects of billing, payments, and NDA’s. Let us take care of the overhead while you focus on building great products.

  • Flexible Engagements

    Flexible Engagements

    Choose the engagement type that suits your needs — hourly, part-time, or full-time — with the ability to change anytime.

  • Expert Talent Matching

    Expert Talent Matching

    Focus on your project and enjoy support from your dedicated account executive and expert talent matcher.

Top Smart Contract Developers are in High Demand.

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