Hire the Top 3% of Freelance Web3.js Developers

Toptal is a marketplace for top Web3.js developers, engineers, programmers, coders, architects, and consultants. Top companies and startups choose Toptal Web3.js freelancers for their mission-critical software projects.

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Clients rate Toptal Web3.js developers 4.9 / 5 on average based on 1,181 reviews.

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Hire Freelance Web3.js Developers in the UTC-08:00 America/Los Angeles time zone

Kartik Bajaj

Freelance Web3.js Developer
UTC-08:00
Canada
Toptal Member Since August 31, 2021

Kartik is a software engineer with several years of experience, working for large corporations like Salesforce and his own startups in between; currently, he is building another startup in decentralized finance. Kartik focuses on full-stack development. However, he also has hands-on experience building eCommerce stores with yearly sales crossing $1 million.

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Imi Kim

Freelance Web3.js Developer
UTC-07:00
Canada
Toptal Member Since August 21, 2022

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.

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Julian Cislo

Freelance Web3.js Developer
UTC-05:00
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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Éric Lamontagne

Freelance Web3.js Developer
UTC-05:00
Canada
Toptal Member Since August 2, 2022

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.

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Luciano Greiner dos Santos

Freelance Web3.js Developer
UTC-03:00
Brazil
Toptal Member Since June 9, 2016

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.

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Dan Field

Freelance Web3.js Developer
UTC+00:00
United Kingdom
Toptal Member Since October 18, 2022

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.

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Draltan Marin

Freelance Web3.js Developer
UTC+01:00
France
Toptal Member Since November 28, 2018

Draltan has been working in software development on a wide variety of technologies for more than 10 years. Over the past three years, I co-founded a startup and participated in a few startup projects as CTO. This year, I've been heavily working on blockchain projects defining technical architectures and developing contracts.

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Warren Schwartz

Freelance Web3.js Developer
UTC+02:00
South Africa
Toptal Member Since December 28, 2021

Warren has been in software development for the last 20 years, and he has delivered hundreds of successful projects. In the previous four years as a CTO, he has proudly led a team of five developers to produce some great apps using blockchain and conventional tech.

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Jerome Sonnet

Freelance Web3.js Developer
UTC+04:00
United Arab Emirates
Toptal Member Since August 5, 2022

Jerome is a software developer with master's degrees in actuarial and computer science. He has a strong background in IT and finance, enjoying blockchain, web3.js, and crypto assets projects. Jerome set up a risk management reporting tool that implemented valuation policies for $17+ billion in assets. He has managed teams, built data warehouses and arbitrage mechanisms, and expanded client visibility.

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Radek Ostrowski

Freelance Web3.js Developer
UTC+07:00
Thailand
Toptal 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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Jing Hong Chan

Freelance Web3.js Developer
UTC+08:00
Malaysia
Toptal Member Since March 16, 2021

Jing is a front-end developer with five years of professional experience specializing in React and React Native. He's attentive to detail and excels at building creative interfaces and interactions. Jing is obsessed with crafting pixel-perfect front-end experiences and getting a perfect lighthouse score. He believes that being a great developer balances beauty with practicality, and he writes code that future developers can easily work with.

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THE TOPTAL ADVANTAGE

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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
Creating an app for the game
Leading a digital transformation
Elmar Platzer
Leading a digital transformation
Building a cross-platform app to be used worldwide
Building a cross-platform app to be used worldwide
Drilling into real-time data creates an industry game changer
Drilling into real-time data creates an industry game changer
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 Web3.js Developers Through Toptal

1

Talk to One of Our Client Advisors

A Toptal client advisor 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 Web3.js developer for your project. Average time to match is under 24 hours.
3

The Right Fit, Guaranteed

Work with your new Web3.js 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 Web3.js 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 Web3.js 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.

  • To hire the right Web3.js 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 Web3.js developers for your project.

  • At Toptal, we thoroughly screen our Web3.js 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 Web3.js developers ready to help you achieve your goals.

  • You can hire Web3.js 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 Web3.js developers can fully integrate into your existing team for a seamless working experience.

  • We make sure that each engagement between you and your Web3.js 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 Web3.js Developers Are in High Demand.

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