Hire the Top 3% of Solidity Developers in 48 Hours

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

Meet Solidity Developers in Our Exclusive Network

Featured Talent

John McLaughlin, Solidity Coder.

John McLaughlin

Verified Expert in Engineering
21 Years of Experience

Solidity Developer

John is a full-stack blockchain developer with 10+ years' experience, deploying 150+ Solidity smart contracts (ERC-20/721/1155) across Ethereum, Polygon, Arbitrum, and zkSync. He brings deep Solana and Rust expertise (tokens, staking, DEX integrations) and builds multi-exchange trading platforms with real-time pipelines. John also builds AI into apps and connects it to live tools and data so it can act on its own.

SolidityReact.jsNext.jsDockerExcel DevelopmentLinuxMySQLEthereumNode.jsNFTDecentralized Finance (DeFi)HyperledgerFlask
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Denis Baturin, Freelance Solidity Developer for Hire.

Denis Baturin

Verified Expert in Engineering
10 Years of Experience

Solidity Developer

Denis is a blockchain analyst and a Solidity and Android developer. He has been in charge of everything blockchain-related in a hardware wallet company for over two years. He has integrated 10+ blockchains for a hardware wallet Android app in Kotlin and Java and developed a self-sovereign identity (SSI) POC app. Denis is experienced with smart contracts and NFTs and has a solid background as a system administrator and tech support.

SolidityBlockchainBitcoinEthereumNFT
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Kaustav Chakraborty, Solidity Freelancer.

Kaustav Chakraborty

Verified Expert in Engineering
24 Years of Experience

Solidity Developer

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.

SolidityJavaGolangSpring BootEthereumC++Apache KafkaEnterprise ArchitectureCloud EngineeringKubernetesMongoDBMySQLSpring
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Daniel Trinh, Senior Solidity Programmer and Consultant.

Daniel Trinh

Verified Expert in Engineering
8 Years of Experience

Solidity Developer

Daniel is a lead Solidity developer with five years of experience in development and four years in Blockchain. He specializes in EVM protocols, decentralized finance, and NFTs. He's built several products in this space, including a Crowdfunding Protocol, a 200MM Stablecoin Protocol, an automated on-chain trading engine, and several NFT apps on Ethereum. Daniel is constantly learning about new projects, best practices, and design patterns in the EVM and blockchain protocol space.

SolidityNode.jsCSSAWSEthereumNFTBlockchainSmart Contract DevelopmentPostgreSQLFull-stack
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Nicolas Debaene, Solidity Freelancer.

Nicolas Debaene

Verified Expert in Engineering
6 Years of Experience

Solidity Developer

With a master of science degree in engineering and a specialization in data science from Telecom ParisTech, Nicolas has been solving concrete business cases for five years using machine learning and data mining. His experience in the eCommerce, banking, and consulting sectors gives him a very strong technology portfolio and a deep understanding of different business types.

SolidityArtificial IntelligenceData AnalysisData ScienceData VisualizationMachine LearningPythonData MiningDeep LearningSQLNLPNumPyComputer Vision
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Abhi Panchal, Accomplished Solidity Freelancer.

Abhi Panchal

Verified Expert in Engineering
8 Years of Experience

Solidity Developer

Abhi is a generative AI engineer with 6+ years of experience building production-grade agentic systems. He specializes in LLMs, RAG, multi-agent orchestration, and autonomous AI workflows using LangChain and Google ADK. Abhi designs systems with robust guardrails, LLM evaluation, and end-to-end observability — covering tracing, monitoring, and human-in-the-loop review. He deploys scalable, low-latency AI pipelines on AWS and GCP, delivering reliable, enterprise-ready solutions.

SolidityPythonREST APIFlaskLLMChatbot DevelopmentRAGMachine LearningDeep LearningPyTorchTensorFlowDockerDevOps
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Dee Acharjya, Senior Solidity Programmer and Consultant.

Dee Acharjya

Verified Expert in Engineering
26 Years of Experience

Solidity Developer

Dee is a full-stack engineer with experience leading teams and providing hands-on coding for scalable solutions. He has contributed to projects in diverse industries, including document management, blockchain, legal, and telecommunications, becoming highly proficient in Node.js, NestJS, React, Next.js, GraphQL, .NET, and C#. Dee is also adept at managing SQL and NoSQL databases and deploying CI/CD pipelines using GitHub Actions, Docker, and Kubernetes.

SolidityNode.jsReact.jsDockerKubernetesSoftware ArchitectureBlockchainDevOpsMongoDBNext.jsRDBMSNoSQLEnterprise Development
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Robert Pardela, Solidity Engineer.

Robert Pardela

Verified Expert in Engineering
26 Years of Experience

Solidity 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.

SolidityXamarinJavaScriptNode.jsBlockchainREST APISoftware DevelopmentEthereumSmart Contract DevelopmentSoftware ArchitectureWeb DevelopmentBack-end DevelopersFront End
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Mohammadi Gheis, Accomplished Solidity Freelancer.

Mohammadi Gheis

Verified Expert in Engineering
13 Years of Experience

Solidity Developer

Gheis is a blockchain expert and developer with experience in C++, C#, JavaScript, Go, Node.js, and MQL4/5. He excels in developing blockchain services, cross-platform software, artificial intelligence, trading bots, auto trade algorithms, and DApps while delivering top-notch user-friendly solutions. As a leader of the back-end, blockchain, and DevOps teams of 10+ developers, Gheis has been involved in many high-tech projects solving complex systems and identifying improvement opportunities.

SolidityNode.jsGolangBlockchainEthereumC++Back-end DevelopersSmart Contract DevelopmentWeb3.jsNoSQLSQLDecentralized Finance (DeFi)API
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Sven Meyer, Solidity Coder.

Sven Meyer

Verified Expert in Engineering
7 Years of Experience

Solidity Developer

Sven has 20+ years of experience working on the most advanced and innovative technologies: IoT, data science, machine learning AI, and distributed systems. Since 2017 he has mainly focused on blockchain technology, working as a CTO and advisor, leading the technology and product definition. Sven developed smart contracts for blockchain-based decentralized finance platforms, token launch platforms, and real-world assets (RWA) tokenization with fractional ownership, securing over $100 million.

SolidityEthereumBlockchainEmbedded Software EngineeringSmart Contract DevelopmentNFTSoftware Architecture
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Giorgi Lagidze, Senior Solidity Programmer and Consultant.

Giorgi Lagidze

Verified Expert in Engineering
11 Years of Experience

Solidity Developer

Giorgi has over eight years of experience developing applications with Vue and React on the front end, and Laravel and Node.js on the back end. Over the past five years, he has specialized in blockchain and DeFi development using Solidity, with a strong focus on cross-chain solutions in the past years. Giorgi is known for exceptional communication, top-quality delivery, and creating one of the best Solidity frameworks for launching DAOs.

SolidityPHPJavaScriptHTML5LaravelVue.jsjQueryGitBlockchain
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