Hire Freelance OpenZeppelin Developers and Engineers
Warren Schwartz
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.
Show MoreJohn McLaughlin
John has professional experience developing Ethereum decentralized apps (dApps), including an NFT factory and marketplace deployed on Mainnet and L2 chains such as Polygon, Arbitrum, Optimism, and zkSync. He has created two video/audio storage apps using IPFS/Filecoin and designed and deployed a Hyperledger Fabric permissioned blockchain to organize McKurz Capital's financials. John has also designed container orchestrations using Docker and Kubernetes for various web2 and web3 apps.
Show MoreEmre Tapcı
Emre is a full-stack developer with 20 years of experience, six of them working remotely and freelancing. He specializes in back-end development with Node.js, Express.js, Sequelize, Java/Spring MVC, and C#, ASP.NET, excelling with React, HTML, CSS, OpenGL, and Three.js on the front-end side. Emre is also keen on mobile development with React Native and enjoys using Truffle, OpenZeppelin, Solidity, and Ethereum JSON-RPC for blockchain development.
Show MoreDarko Štriga
Darko is a product tech lead, senior software engineer, and back-end developer with 12 years of experience in research and development. He worked on data-intensive applications and services in the sports industry and led end-to-end engineering execution, including back end, iOS, and Android. He holds a PhD in computer science in social network analysis in data science.
Show MoreRoman Semko Androsenko
Roman has over a decade of experience excelling as a web, blockchain, and mobile developer. With a solid financial background and 20+ years of excellence in IT, he brings a unique blend of skills to clients, especially in the B2B domain. He won Samsung's mobile development challenge and has seen his apps used by millions. Roman founded two successful startups and has played a crucial role as CTO and solutions architect in several projects.
Show MoreÉric Lamontagne
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.
Show MoreLukas Klinzing
Lukas is an accomplished full-stack engineer with 16 years of experience developing applications and scalable infrastructures for global startups and big enterprise corporations. His primary focus is on creating exceptional UI-heavy web applications and AI-based software. Lukas has a profound understanding of business requirements and can adeptly turn them into user-friendly solutions. He is committed to continuous self-improvement and supporting colleagues in reaching their full potential.
Show MoreKaustav Chakraborty
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.
Show MoreMatías Schapiro
Matías has been programming as a hobby since he was six years old. He started with GW Basic and Quick Basic in the eighties and has used a lot of technologies since then. Now, he focuses on C#. After finishing his master's degree in finance, he has tackled many projects related to capital markets and quantitative algorithms. Matías loves software and finance and would be an excellent candidate for this kind of project.
Show MoreAdrià Pérez
Adrià is a back-end developer focused on modern PHP and Python. He's worked on fintech and big data projects and developed NL and AI solutions. He believes that maintainability, scalability, and performance should always be the guidelines to follow when designing and creating products.
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