Upstaff Developer Profile Directory
All vetted software engineers you need to build AI, Web3, and data Products.
- Dedicated Full-time commitment for long-term or Time& Material for shorter or ongoing support
- Europe, Israel, LatAm, United States, Asia geography coverage
- Remote and hybrid engagement
- Trial period, no termination fees or hidden costs for transparent and risk-free onboarding.
- 4 years of experience in Ethereum blockchain and Solidity programming. - 2 years of experience in C , Python programming. - Highly professional blockchain developer with comprehensive accomplishments applying high-security smart contracts to ensure success and achieve goals. - Strong experience in EVM-compatible smart contracts development. Demonstrated success developing and seamlessly executing smart contracts in complex DeFi and DEX structures. - Upper-Intermediate English - Available ASAP
- Helping shape the fast growing blockchain industry.- Digital Assets- Consulting- Native English
- Senior software developer with about 7 years of experience - Web applications for crypto finance (including wallet for Ethereum using ether.js (deposit, withdrawal, staking operations) and web3.js (connect Metamask, get balance, withdraw and deposit tokens) - Maintaining web applications with Front-end jQuery, Vue.js, React.js, React Native, Angular.JS, Angular 2+ and PHP Laravel, WordPress - Hands-on experience of both working as a single developer and being a part of big Agile teams.
- IT project director and startup founder passionate about the banking, fintech, blockchain industries. - Results-driven Product Manager with forward-thinking approach centered on company success and competitive growth. - Record of success in building successful teams and managing different type of project to the market launch. - Experience on working with DeFi, NFT, dApp, Crypto related project and platform launches over highly volatile market within cross-functional teams. - Successfully launched fintech startup and also managed Scrum development team in largest Sweden Bank data warehouse unit. - 7+ years of experience in IT. - Advanced English.
- Back-end developer with 6+ years of commercial experience; - 4+ years of experience working with Node.js and Express.js; - Good knowledge of work with AWS, Doker; - 5+ years experience working with CORS; - Skills in working with blockchain projects; - Experience working with the DEX project in the field of DeFi; - Deep understanding of creating DB and API structure and implementing app logic; - Good collaboration with the product team to understand requirements and business specifications; - Highly motivated to do amazing products, like to learn new technologies; - Intermediate English; - Available: ASAP.
- Developer with 11+ years of experience; - Developing web applications using PHP, JavaScript, Golang; - Experience with Blockchain and smart contracts; - Solid experience with MVC architecture-based Web Application Development; - Excellent knowledge of common software engineerings practices, like OO principles, modern design patterns, test-driven development, continuous integration, and continuous deployment; - Experience in building database architecture; - Hands-on experience with writing WEB-services (REST); - Has experience in Architectural approach discussions, design, and decision-making (feature/component level); - Estimation decision-making delivery management cross-team technical communication task; - Extensive experience in mentoring specialists, making code review; - Strong analytical skills, well knowledge of math, high level of responsibility; - Quick learner, team player, goal-oriented and responsible; - Upper-Intermediate English; - Available ASAP.
$3198/month
Highly self motivated individual seeking for an opportunity to work in challenging environment. I'm passionate about new technologies and continuously try to learn and prove my worth in those sections. I'm well versed in numerous programming languages and technologies from both web2 and web3 i.e. blockchain technology. Got a proven experience working on blockchain technology.
$5000/month
Organized, collaborative and highly skilled full stack & blockchain developer with 8+ years of professional experience in dynamic and deadline-driven work environments. Self-motivated and self-taught professional who always trends to challenge difficult problems no one dares to try. The following skills can cover your project? - Blockchain (Solidity, Web3.js, Ethers.js) - JS frontend frameworks (React, Vue, Angular, Next, Nuxt, Gatsby) - Backend skills (Laravel, Express, Django, .NET) - Other (GraphQL, Shopify, AWS, Firebase, Google APIs, Typescript) If so, your project is already 99.99% done. The only thing left is to hire me and wait for the perfect result drinking coffee ~_~
- 7+ years of experience in the IT industry - Mobile & Web developer - Intermediate English