Web3 Development Services

A World-class Web3 Development Company

Web3 Development Services – Build Decentralized Products That Scale

Design and develop Web3 products for real-world use with Toptal’s Web3 Development Services. Our Web3 developers engineer blockchain applications and protocols with an emphasis on security, performance, and long-term maintainability.

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Clients Served

35,000+

Total Vetted Professionals

30,000+

Toptal Total Projects Delivered

85,000+

Years in Business

15+

TRUSTED BY LEADING BRANDS

Our Services

Toptal Web3 Development Services

Navigate the technical complexity of decentralized product development with specialists across blockchain architecture and application engineering. Toptal’s Web3 developers work across established blockchain ecosystems to translate product requirements into functional solutions while addressing security throughout development.

Blockchain Solution Development

Design and build blockchain solutions end to end, from early architecture through deployment and ongoing support.

Smart Contract Engineering

Write and test smart contracts in Solidity and Rust that automate transactions while addressing security and intended contract behavior.

Smart Contract Security Audits

Review contract code for vulnerabilities and gas inefficiencies to identify risks and optimization opportunities before launch.

App Development

Build decentralized applications with intuitive interfaces and on-chain functionality that integrates with user wallets.

NFT Platform Development

Create NFT marketplaces and minting platforms with supporting smart contracts and metadata architecture.

Token Design and Tokenomics

Design and deploy fungible tokens with economic models that support intended utility and incentive structures over time.

DeFi Application Development

Develop and secure decentralized finance solutions for use cases such as exchanges, lending, or staking.

Crypto Wallet Engineering

Engineer secure wallets and integrations that let users interact with digital assets through thoughtfully designed account experiences.

Blockchain Integration

Connect Web3 features to your existing apps using the infrastructure needed to exchange information reliably between blockchain and traditional systems.

Blockchain Scaling Solutions

Build custom chains, rollups, and layer-2 solutions designed to increase transaction capacity while managing costs as usage grows.

DAO Development

Develop DAO infrastructure that supports community voting, treasury management, and decentralized decision-making.

Web3 Architecture and Advisory

Guide architecture and security decisions, then support your Web3 environment as product requirements and usage evolve.

Looking for guidance about the perfect Web3 development service for your needs?

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PARTNERSHIP THAT WORKS

How We Deliver Web3 Development Services

Our Web3 development experts, with experience at leading companies, develop and deploy tailored solutions to meet your business needs and unique industry demands for sustainable results and long-term success.

Discover

A leader from our team works with you to understand your business challenges, pain points, and strategic goals to uncover new opportunities and identify the options to reach your objectives.

Define

Toptal leaders collaborate with your team to define your specific goals and service needs, evaluating multiple approaches and aligning requirements with your strategic objectives to define the best solution.

Develop

Once your service is defined and you have your talent or team on board, they will create your unique project timeline, process, and initial proposals, whether your goal is to launch a new decentralized application, develop and test smart contracts, or bring Web3 features into an existing product.

Deploy

Toptal will get to work, tracking quality assurance, handling project management, and maintaining the delivery schedule.

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Robert Orshaw

CEO, Technology Services

As Toptal’s CEO of Technology Services, Robert leads strategy and operations across our technical services portfolio, spanning AI, automation, and operations. He previously served as Deloitte’s Managing Director & Chief Commercial Officer, transforming its Cloud Operate and Engineering business into a multibillion-dollar operation. He held senior roles at IBM, Velocity, co-founded Corio, and was CIO for two Fortune 500 companies.As Toptal’s CEO of Technology Services, Robert leads strategy and operations across our technical services portfolio, spanning AI, automation, and operations. He previously served as Deloitte’s Managing Director & Chief Commercial Officer, transforming its Cloud Operate and Engineering business into a multibillion-dollar operation. He held senior roles at IBM, Velocity, co-founded Corio, and was CIO for two Fortune 500 companies.

Previously At

CUSTOMIZED SOLUTIONS

Web3 Development Solutions That Deliver Value

Toptal delivers leading Web3 development services through its diverse talent network and flexible delivery models. We implement the right skills at each project phase, blending expertise from various roles for seamless execution.

End-to-End Delivery by Toptal
On-demand Talent and Teams

End-to-End Delivery by Toptal

Comprehensive project delivery, tailored to your specific requirements.

CEO, Technology Services

Delivery Manager

Full-stack Blockchain Developer

Smart Contract Developer

Blockchain Developer

Blockchain Architect

Web3 Product Manager

Product Designer

Robert Orshaw

CEO, Technology Services

Previously at

Technology Experience

35+ Years

Rachael Karaffa

Delivery Manager

Rachael serves as a Delivery Manager at Toptal with a focus on leading diverse global teams in developing innovative solutions for our clients. She works across multiple disciplines, including technology, marketing, and management consulting. Rachael specializes in managing people and client relationships, process optimization, and driving teams toward optimal business outcomes.

Previously Managed Client

Experience

9+ Years

Kaan Sentürk

Verified Expert in Engineering

10+ Years

of Experience

Full-stack Blockchain Developer

Kaan is a full-stack developer with 10 years of experience building web and mobile applications. Trained at Apple Switzerland, he has excellent attention to detail. Kaan specializes in the JavaScript ecosystem, focusing on TypeScript, Node.js (NestJS), React (Next.js), and various web, desktop, and mobile frameworks.

Previously at

Yashveer Rana

Verified Expert in Engineering

13+ Years

of Experience

Smart Contract Developer

Yashveer boasts over 13 years 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.

Previously at

Robert Pardela

Verified Expert in Engineering

25+ Years

of Experience

Blockchain Developer

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.

Previously at

Aminadav Glickshtein

Verified Expert in Engineering

25+ Years

of Experience

Blockchain Architect

Aminadav has 25+ years of 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.

Previously at

Casey Arrington

Verified Expert in Product Management

15+ Years

of Experience

Web3 Product Manager

Casey is a product and project management professional with 15+ years of experience driving innovation in the insurance, healthcare, finance, gaming, blockchain, decentralized finance, and aerospace sectors. He has founded two companies, raised $4+ million in funding, scaled teams successfully, and played a pivotal role in guiding startups from inception to success. Casey is dedicated to leveraging technology to create impactful solutions that improve lives and contribute positively to society.

Previously at

Paula Barcante

Verified Expert in Design

11+ Years

of Experience

Product Designer

Paula is an award-winning UX/UI designer, advisor, and illustrator with more than 11 years of hands-on experience in making complex interfaces delightful and user friendly. She has made a significant impact in large corporations, such as Amazon, Zillow, Google, as well as startups. Her mission is to create efficient, beautiful, innovative, and high-quality experiences for the greater good of society.

Previously at

On-demand Talent and Teams

30,000+ vetted professionals, ready to deploy individually or in teams.

Blockchain Developer

Product Manager

Blockchain Developer

Product Designer

Blockchain Solutions Architect

Smart Contract Developer

Web3 Developer

Project Manager

Blockchain Developer

Verified Expert in Engineering

14+ Years

of Experience

Blockchain Developer

Cleivson is a senior back-end engineer with more than 14 of experience working in Agile development and solving business problems by diving deep into the user’s requirements. While working at Amazon, he was able to develop and maintain systems with a high load (millions, sometimes billions, of requests per day) in a highly scalable and highly available environment. Cleivson specializes in C#, Java, and TypeScript languages and can rapidly ramp up in any other technology.

Previously at

Verified Expert in Product Management

21+ Years

of Experience

Product Manager

Amleto is a seasoned product and strategy manager with extensive experience building B2B software. His work with PayPal, JP Morgan, his own startup, and Worldsensing saw him build a deep understanding of purchase mechanisms in the B2B software and SaaS space. He has successfully launched countless profit-driving, resource-saving products as well as software that has won several international awards.

Previously at

Verified Expert in Engineering

20+ Years

of Experience

Blockchain Developer

Adrian has 20+ years of experience in engineering and management for major companies, including Endava, ING Group, and IBM. His expertise covers enterprise B2B products, ERP creation from scratch, consultancy and code quality analysis, performance optimization and process improvement, communication and multi-user collaboration platforms, and hybrid mobile applications. Adrian is passionate about improving processes and workflows, always finding new ways to optimize time spent on manual work.

Previously at

Verified Expert in Design

27+ Years

of Experience

Product Designer

Anne is a creative director and senior digital product designer with 27+ years of experience in visual design and UX. She has built digital products, design systems, marketing campaigns, and mobile apps. Her work with more than 40 agencies includes Frog, McCann, Publicis, Havas, Digitas, JWT, Droga5, and Razorfish. Anne’s client roster includes JP Morgan, Birchbox, Sony Music, BMW, and A&E. As a co-founder of Sein Analytics, she helped build the company’s financial analytics SaaS product.

Previously at

Verified Expert in Engineering

23+ Years

of Experience

Blockchain Solutions Architect

Piotr is a blockchain architect, software developer, and technical lead with more than 23 years of experience working with CERN, Motorola Solutions, universities, and more. He has led projects, served as a Scrum master, and developed and delivered complex web and mobile solutions, including business and technical requirements, architecture, third-party API integrations, data acquisition, and processing for BI. Piotr co-developed the pan configuration language and has a PhD in computer science.

Previously at

Verified Expert in Engineering

25+ Years

of Experience

Smart Contract Developer

Seva is a software professional with 25 years of development experience. He graduated from UC Berkeley with degrees in electrical engineering and computer science, and a minor in material science and engineering. Seva is a team lead, project manager, mentor, solution architect, and hands-on developer who builds efficient, scalable, and fault-tolerant solutions for enterprise companies and startups.

Previously at

Verified Expert in Engineering

11+ Years

of Experience

Web3 Developer

For over 11 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.

Previously at

Verified Expert in Project Management

15+ Years

of Experience

Project Manager

Manali has worked in several organizations as a Scrum master of multiple development teams. She follows all Scrum ceremonies and manages stakeholders’ expectations to prepare and track the risk matrix. She adheres to budget plans and updates reports to appropriate stakeholders. Manali is committed to designing user-centric experiences and is passionate about working with teams whose vision aligns with her values.

Previously at

Verified Expert in Engineering

22+ Years

of Experience

Blockchain Developer

Kaustav is a hands-on, goal-oriented, versatile technology professional with more than 22 years of experience, primarily in open-source digital technologies such as blockchain, IoT, microservices, cloud services, distributed architecture, R&D, design, and development. He has a proven track record of delivering consistent business results, and he loves to take on technical challenges, learn about new technology innovations, and deliver successful products worldwide.

Previously at

Looking for guidance about the perfect Web3 development service for your needs?

Get a Free Consultation Now

Looking for guidance about the perfect Web3 development service for your needs?

UNRIVALED EXPERTISE

Our Talent Has Worked With Top Companies

Having previously worked with these leading global companies, our talent brings valuable insights and expertise to deliver world-class outcomes.

WHY ORGANIZATIONS CHOOSE US

Toptal in Action

Discover the cutting-edge benefits our clients enjoy from the global Toptal network.

Toptal launches Ethereum-based gem tracing platform for Authentia in 14 weeks.

Challenge: Bruno Scarselli, a third-generation diamond dealer, needed to create a platform that could issue cryptographic titles of authenticity, origin, and ownership for gems. He was unsure of the technical requirements, particularly around blockchain development, and faced a complex path to execution.

Solution: The team followed a rigorous project management timeline focused on rapidly delivering Scarselli’s most needed features, delivering a working MVP in just 14 weeks. The platform leverages a React and Node.js infrastructure to support an Ethereum-based blockchain protocol. The system uses a robust AWS infrastructure, including IAM, S3, CloudFront, Lambda, Aurora Serverless, KMS, SES, CloudFormation, EKS, and EC2 to ensure scalable, secure, and efficient service delivery.

Outcome: Thanks to the team’s rapid execution, Scarselli attracted his first 50 diamond-industry customers mere months after ideating on his product vision. For technology startups, this rapid speed to market is critical for both short- and long-term success.

This collaboration has not only streamlined our operations, but partnering with Toptal has given life to entirely new industry standards for transparency.

Bruno Scarselli

Managing Partner at Scarselli Diamonds, Authentia Founder

Toptal Ranked #1 Most Reliable Professional Services Company in America

Newsweek and Statista’s rankings were based on an independent survey of more than 2,400 decision-makers at Fortune 500s.

IBM — Newsweek's Most Reliable Companies in America 2026 ranking. Toptal is ranked #11, the highest-ranked professional services firm.

See the Most Reliable Companies in America

Methodology for the Rankings

How likely the respondent is to recommend the selected company to others.

Measures the convenience of interaction with the company and efficiency of processes.

Measures the company’s cost-effectiveness and quality relative to price.

Measures whether the company consistently meets or exceeds expectations in quality and timeliness of deliverables.

Measures the company’s ability to consistently fulfill commitments and maintain customer trust.

See the Most Reliable Companies in America

OUR THOUGHT LEADERSHIP

Explore Insights From the Web3 Development Field

Read the latest articles and resources on Web3 development, covering smart contracts, dApps, token design, and blockchain security, to help your team build with confidence.

The Ultimate ENS and ĐApp Tutorial

The Ethereum Name Service is a blockchain-backed alternative to the internet's traditional Domain Name System. If you own a .eth domain, you can deploy smart contracts that let users set up their own subdomains—but then, of course, you'll want a corresponding ĐApp to make it user-friendly. In this tutorial, Toptal Freelance Ethereum Developer Radek Ostrowski provides complete coverage of this scenario, this time with a focus on ĐApp development.

Radek Ostrowski

Verified Expert in Engineering

Radek is a blockchain engineer who specializes in Ethereum, smart contracts, and ĐApp development. At IBM, he was a triple winner in two international Apache Spark competitions, and he later co-created the back end for PlayStation 4. Radek has also led big data and machine learning projects, competed in global hackathons, and spoken at developer conferences across the globe.

Expertise

ÐApp Ethereum

Previously at

NFTs for Designers: An Introduction

Gabor Molnar

Verified Expert in Design

Gabor is a 3D generalist and designer in the fast-paced world of crypto and NFTs. He is a creator of the NFT collection Omnimorphs and a consultant for other NFT brands. He is also a product designer with a background in business economics, user experience design, user interface design, and branding.