Hire Freelance Cryptocurrency Developers and Engineers
Damjan Kužnar
Damjan has more than ten years of experience as a Python developer and has an extensive background in web development, data analysis, and machine learning. He helped scale one of the oldest cryptocurrency exchanges from $10 million to $2 billion in daily trading volume and has experience in managing teams.
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John R. Kosinski
As a veteran full-stack developer, John's great breadth and depth of experience include cryptocurrency, IoT, blockchain, and mobile projects. His foundation is in C and C++, with many years of experience in .NET. His work experience up until 2009 was in the NYC and NYC area. Since 2009, he's been living abroad and working remotely. John has a personal research project in the background, involving blockchain and deep neural networks.
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StJohn Piano
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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John McLaughlin
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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Dhruv Dangi
Dhruv is a software engineer with 6+ years of professional experience, specializing in mobile development, IoT, and cryptocurrency. With a broad and versatile coding skillset, he has worked with established companies and developed prototypes that helped startups translate their ideas into reality quickly and efficiently. Dhruv is a fast learner with a passion for building habit-forming products. His industry experience is backed by a bachelor's degree in computer engineering.
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Yehonathan Svechinsky
As an entrepreneur, Yoni is driven by the idea that the problem comes first and that technology is only one of a few tools to solve it. With over six years of experience (starting in a physics lab), Yoni has developed, architected and managed teams to solve various problems from knowledge management systems to crypto-asset derivatives and exchanges.
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Sven Meyer
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.
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Octavian Lojnita
Octavian, an accomplished software polymath, has 20+ years of experience in networking, security, apps, websites, blockchains, and emerging technologies like AI. His expertise in app development, iOS games, custom web systems, and fintech has propelled numerous projects to success in both the Web 2.0 and Web 3.0 realms. Leveraging his profound knowledge, Octavian pushes the frontiers of blockchain technologies, fostering innovation within all his expertise.
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Nikone Bounyavong
Nikone has been helping clients compete and grow with cleverly designed tools optimized for peak performance for 8+ years. He is also the co-founder and chief engineer at PengolinCoin, where he developed the core system. Nikone spent two years developing a project management service and a user survey system for IT360. With deep knowledge of the blockchain space, he also helped MPL get millions in crowdfunding from thousands of users by developing smart contracts for NFT games.
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Wesley Smith
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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Joshua Neuman
Joshua is a seasoned cybersecurity professional with deep experience and knowledge in governance, risk, compliance (GRC), auditing, vulnerability management, network security, and network engineering. He has consulted for both the US government and the private sector. Joshua's previous roles include lead network defense security engineer, product owner and stakeholder, voice over IP (VOIP) engineer, and information assurance lead.
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