Smart Contract Development

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.

Clients rate Toptal Smart Contract developers 4.9 / 5 on average based on 859 reviews.

Trusted by leading brands and startups

Hire Freelance Smart Contract Developers and Engineers

Robert Doroftei

Freelance Smart Contract Developer
Romania
Toptal Member Since June 21, 2022

Robert is a software architect and back-end developer who's spent over 15 years building several features for clients in the fintech, IoT, and VoIP spaces. Robert also has extensive experience developing web applications and smart contracts on all Ethereum-compatible blockchain networks. Robert has an entrepreneurial mindset and focuses on turning promising ideas into products.

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Julian Cislo

Freelance Smart Contract Developer
Canada
Toptal 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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Wesley Smith

Freelance Smart Contract Developer
United States
Toptal Member Since October 10, 2019

Wesley likes writing code that people use and actually gets shipped to market--so this is why he cares about customer feedback, deadlines, and project vision. Most recently, Wesley has been working on smart contracts for Ethereum and Bitcoin and building SasS products that integrate with distributed ledger technology.

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Mariam Khojashvili

Freelance Smart Contract Developer
Georgia
Toptal Member Since December 2, 2022

Mariam is a seasoned front-end software engineer specializing in React development, delivering top-notch solutions. Her key strengths include expertise in React, Redux, and front-end technologies, with skills in code review, task management, deployment, and mentoring. She has a proven track record in enhancing page loading times, optimizing user experiences, and translating UI/UX designs into high-quality markup. Mariam has strong problem-solving abilities, focusing on performance optimization.

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Dominik Krížo

Freelance Smart Contract Developer
Slovakia
Toptal 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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John McLaughlin

Freelance Smart Contract Developer
United States
Toptal Member Since September 12, 2022

John is an experienced Ethereum dApp developer. He has created NFT factories and marketplaces on Ethereum Mainnet and L2 chains like Polygon, Arbitrum, Optimism, and zkSync for five Toptal clients. He has designed and deployed 150 unique Solidity smart contracts (ERC-20, ERC-721, ERC-1155) integrated into various decentralized platforms and applications. As an AWS Certified Developer Associate, John has also developed and deployed serverless applications for Toptal and other freelance clients.

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Irene Bulintis

Freelance Smart Contract Developer
Romania
Toptal Member Since September 9, 2022

Irene is a highly-motivated self-starter who values user experience and reliability while building software. She's helped dozens of clients drastically reduce human error in various industries and co-founded two successful edtech startups. Currently, Irene specializes in front-end development with React and TypeScript.

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StJohn Piano

Freelance Smart Contract Developer
Spain
Toptal Member Since November 15, 2022

StJohn is a highly-skilled and motivated senior software engineer with 11+ years of experience, 8+ of which have been in the blockchain industry. He currently works as the head of engineering at Solidi Cryptocurrency Exchange. StJohn has built excellent software for a fully regulated UK cryptocurrency exchange, a blockchain-based web publishing system, a secure Bitcoin storage toolset, a speech recognition company, a transcription team, and a furniture factory.

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Joseph Saw

Freelance Smart Contract Developer
Malaysia
Toptal Member Since August 30, 2022

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.

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Fabio Pacchioni

Freelance Smart Contract Developer
Italy
Toptal Member Since April 29, 2022

Fabio is a software developer who has been specializing in Solidity for almost five years now. With a background in electronic engineering and a passion for software, he has worked his entire life in automation, blockchain, and finance software. He held developer, blockchain engineer, and CTO roles in different projects with worldwide clients. Fabio is a highly committed professional with a proactive attitude in designing software architecture and solutions.

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Mert Şamil Gül

Freelance Smart Contract Developer
Turkey
Toptal Member Since December 2, 2022

Mert is a blockchain developer who has worked on various projects, including an NFT marketplace and blockchain-based games for an exchange company. He is an expert in developing smart contracts in Ethereum Virtual Machine (EVM) blockchains and microservices for blockchains. Mert prefers the Solidity programming language when developing smart contracts and TypeScript for back-end applications.

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Discover More Smart Contract Developers in the Toptal Network

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THE TOPTAL ADVANTAGE

98% of Toptal clients choose to hire our talent after a risk-free trial.

Toptal's screening and matching process ensures exceptional talent are matched to your precise needs.

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Toptal in the press

... 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
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Leading a digital transformation
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Drilling into real-time data creates an industry game changer
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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

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

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

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

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

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 quickly can you hire with Toptal?

    Typically, you can hire a Smart Contract developer with Toptal in about 48 hours. For larger teams of talent or Managed Delivery, timelines may vary. Our talent matchers are highly skilled in the same fields they’re matching in—they’re not recruiters or HR reps. They’ll work with you to understand your goals, technical needs, and team dynamics, and match you with ideal candidates from our vetted global talent network.

    Once you select your Smart Contract developer, you’ll have a no-risk trial period to ensure they’re the perfect fit. Our matching process has a 98% trial-to-hire rate, so you can rest assured that you’re getting the best fit every time.

  • How do I hire a Smart Contract developer?

    To hire the right Smart Contract developer, it’s important to evaluate a candidate’s experience, technical skills, and communication skills. You’ll also want to consider the fit with your particular industry, company, and project. Toptal’s rigorous screening process ensures that every member of our network has excellent experience and skills, and our team will match you with the perfect Smart Contract developers for your project.

  • How are Toptal Smart Contract developers different?

    At Toptal, we thoroughly screen our Smart Contract developers to ensure we only match you with the highest caliber of talent. Of the more than 200,000 people who apply to join the Toptal network each year, fewer than 3% make the cut.

    In addition to screening for industry-leading expertise, we also assess candidates’ language and interpersonal skills to ensure that you have a smooth working relationship.

    When you hire with Toptal, you’ll always work with world-class, custom-matched Smart Contract developers ready to help you achieve your goals.

  • Can you hire Smart Contract developers on an hourly basis or for project-based tasks?

    You can hire Smart Contract developers on an hourly, part-time, or full-time basis. Toptal can also manage the entire project from end-to-end with our Managed Delivery offering. Whether you hire an expert for a full- or part-time position, you’ll have the control and flexibility to scale your team up or down as your needs evolve. Our Smart Contract developers can fully integrate into your existing team for a seamless working experience.

  • 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.

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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