Discover Top Developer Profiles
Our directory at Upstaff.com showcases a talented group of developers, each bringing a wealth of expertise to the table.
- With profiles highlighting skills in IT development, AI, design, sales, marketing, admin, and customer support, our developers stand out for their rigorous vetting and diverse technical proficiencies. Ranging from seasoned experts with over a decade of experience to skilled mid-level professionals, they excel in languages like JavaScript, Python, and React, tackling complex projects with precision.
- Hailing from various regions, including Europe, LatAm, Israel, and the United States, our developers offer a global perspective, ensuring adaptability and high-quality work across industries.
Each profile reflects a commitment to excellence, validated through thorough technical assessments and communication evaluations, making them reliable partners for any project.
-Software Engineer with 5 years of professional experience, working across eCommerce & retail, Marketplace, Healthcare, Entertainment, Education, and Blockchain, Game domains. -Proficiency in PHP, JavaScript, TypeScript, React - Knowledge of Vanilla JS, Native PHP, PHP-Selenium - Experience working with Web3 marketplaces, nodes, on-chain, and off-chain transactions - Knowledge of Web3, understanding of Abi, Smart Contracts; Tampermonkey, Greasyfork - Knowledge Css3, Bootstrap 4; RPC; GitHub; MySQL - Has a successful track record of developing applications from scratch and optimizing existing systems, evidenced by projects such as a Learning Platform, Event Manager, and a Website for a Coin Game - Computer Science and Software Engineering Foundation
- Software Engineer with more than 5 years of commercial experience in software development - Interested in cloud computing, software architecture design, and efficient algorithms - Deep knowledge of Web development technologies - Excellent knowledge of common software engineering practices, like OO principles, modern design patterns, test-driven development, continuous integration, and continuous deployment - Extensive experience in building architecture and database optimization - Extensive experience in mentoring specialists, making code review - Quick learner, team player, goal-oriented and responsible. - Upper-Intermediate English
- Software Engineer with 5+ years of commercial experience building software from scratch; - Good knowledge of main clean code principles like DRY, SOLID, YAGNI, KISS; - Have experience building software solutions from the ground up: from discussion with clients or businesses to understand the problem, field of study and problem research, to deployment and post production support. - Upper-Intermediate English. - Available ASAP.
- Position: Project Manager (PM) with Knowledge of French - Educational Background: Master's degree from IAE Lyon, with specialization in international business development, strategic management, and marketing. - Project Management Experience: Managed engineering vehicle projects and marketing initiatives at renowned companies such as Daimler AG, Renault Group, and PSA Group. - Strategic Insights: Coordinated strategic projects focused on customer satisfaction across markets and headquarters. - Market Analysis Expertise: Conducted an in-depth study of the German automotive insurance market. - Technical Proficiency: Analyzed vehicle development projects and processes, ensuring alignment with organizational objectives. - Native French - Fluent English
- Highly Professional Software Engineer with 7+ years of expertise in QlikView and over 2 years of hands-on experience in the blockchain industry. - Proficient in Solidity and DAML Smart Contracts, he possesses a strong command of blockchain technologies. - With developed analytical and problem-solving skills, Oleg excels in identifying efficient software solutions to complex challenges. - He consistently meets project requirements and delivers results within deadlines. - Upper-intermediate English.
Blockchain Developer and Software Engineer with over 5 years of hands-on experience. Skilled in multiple key programming languages including Rust, Solidity, Python, JavaScript, and TypeScript, and proficient in English with a B2 level. Holds a comprehensive education in Computer Science and Software Engineering. Technical expertise is demonstrated in diverse blockchain environments like Ethereum, Polygon, and Solana, including advanced skills in smart contracts development, security optimizations, and integration of various blockchain technologies. Proven track record in backend development with frameworks such as Django and Node.js, cloud services like AWS, and proficiency in DevOps tools such as Docker, Kubernetes, and Terraform. Successfully improved deployment speeds by 40% through Helm charts and bolstered smart contract security to mitigate 95% of exploit vectors. Combines a passion for programming with effective leadership and project management abilities which contributes to technological advancements and project success.
Software engineer with a comprehensive background in full-stack and blockchain development. Proficient in languages like Rust, Solidity, TypeScript, C#, and C++, with 3 years in JavaScript and Solidity. Strong focus on blockchain ecosystems, having utilized Solidity, Ink!, and Substrate across various innovative projects, including a SPL-token creation using Solana and a cybersecurity platform for Earth satellites leveraging blockchain tech. Experienced in both front-end and back-end paradigms, employing .NET 7, ASP.NET, and React, and tools like Docker and Swagger for deployment and API management. Responsible for leading the development of complex web3 applications, such as a staking platform and a branded shoe online store, showcasing a strong understanding of SDLC, including testing with tools like Hardhat and Foundry. The engineer's project roles demonstrate an ability to handle full-stack responsibilities and a proven track record in delivering robust, scalable applications in diverse domains such as game development, e-commerce, and NFTs.
- Expert in creating and leading tech-driven blockchain and fintech solutions with robust marketing and strategic prowess; - Oversaw development and strategic planning as CEO of a self-developed platform; - Expertise in managing sizeable teams, particularly with a team of 8, driving product growth and optimizing marketing budgets; - Deep skills led initiatives in various acquisition, retention, and branding strategies, with experience across multiple international markets; - Deep understanding of HTML5, CSS, and growth-hacking techniques, underscoring a commitment to technical and user-experience excellence; - Experience in consulting web3 projects that raised investment rounds through token sales: 1. Web3 gaming platform raised $400k in 2 rounds (pre-sale, sale through launchpads). 2. Dex exchange ~$100k in one round of sale. - Created company from idea to full function product(2022-2023); - Company growth from 20k to 1 million USD FTD/month; - Max 1 month ROI=1361% (12/2017); - Optimized marketing budget in 2 times as effective (05/2019).
- With over 12 years of growth marketing experience and 4+ years of specializing in web3 companies, brings hands-on expertise across diverse crypto verticals including exchanges, online casinos, crypto products, b2b solutions, and P2E gaming. - Data-driven marketing strategies have delivered proven results for blockchain startups and web3 companies targeting key geographies like the USA, Europe, China, Philippines, former Soviet Union countries, the UK, Australia, Canada, the specializing Middle East, and Scandinavia. - As a strategic marketing leader, exceling at capturing attention, building trust, and accelerating revenue across these global markets. - Analytical approach couples creative thinking with rigorous optimization across acquisition channels, empowering brands to scale strategically. - Collaboration with multiple blockchain projects double their business, increase revenue by millions, and rapidly grow users in target regions through my nuanced understanding of local cultures and buyer mindsets.
- Experienced Blockchain Developer / Software Engineer with 6 years of experience in crypto financial and DeFi domains. - Proficient in programming languages such as Solidity, Python, and JavaScript. - Strong expertise in blockchain technologies including Uniswap, Ethereum, Polygon, SSV.Network, and wallet integrations. - Skilled in backend development using frameworks like FastAPI, Flask, and Node.js. - Familiar with message brokers like Kafka and cloud platforms like AWS and Azure. - Proficient in DevOps tools like Docker, Kubernetes, and Helm. - Experienced in working with databases like PostgreSQL, MongoDB, and DynamoDB. - Strong knowledge of source control systems like Git, Bitbucket, and GitHub. - Demonstrated ability to design REST API schemas and architect DAO systems. - Proven track record in blockchain development, smart contract optimization, and security audits. - Experienced in setting up and configuring network parameters and implementing identity and access controls. - Proficient in setting up CI/CD pipelines and conducting code reviews. - Skilled in implementing and managing smart contracts compliant with relevant laws and regulations. - Experienced in optimizing storage and computation within smart contracts to minimize transaction costs. - Strong knowledge of SDLC, software development practices, and software engineering principles. - Excellent communication and team collaboration skills. - Computer Science and Software Engineering education background. - Proven ability to find common language with the team and lead on various projects.
- Software engineer with 5+ years of experience in computer science and software engineering. - Proficient in JavaScript, TypeScript, and Solidity programming languages. - Extensive experience in frontend development using React, Redux, Zustand, and other related libraries. - Deep knowledge of blockchain technologies, including Hardhat, ethers.js, and OpenZeppelin. - Skilled in project management, with experience in developing decentralized applications and smart contracts. - Familiar with software development methodologies such as Scrum and Kanban. - Strong problem-solving and team-working skills, always ready to learn new technologies and take on new challenges.
Strong software engineer with 5 years of experience in blockchain development; - Proficient in TypeScript, JavaScript, Web3, and various blockchain technologies such as Rust/Solana, and Polygon/Solidity; - Skilled in smart contract development, DAO implementation, and blockchain integration with web applications; - Experienced in building decentralized applications (dApps) and NFT marketplaces; - Knowledgeable in implementing online crypto payments and blockchain-based gaming systems; - Familiar with AWS, Firebase, and other cloud services for scalable and secure application development; - Achievements include implementing tokenized player trading, decentralized tournaments, and interactive NFT marketplaces; - Strong problem-solving and troubleshooting skills with a solid understanding of browser and web concepts.
- Software Engineer with 5 years of experience in building web applications and expertise in blockchain, DeFi, NFT, and tokenization domains. - Proficient in programming languages such as Solidity, Node.js, Python, and Java. - Experienced in back-end development using technologies like Spring, Hibernate, and JDBC. - Skilled in working with blockchain technologies including Ethereum, ERC721, ERC1155, and EIP712. - Familiar with CI/CD tools like Jenkins and containerization platforms like Kubernetes and Docker. - Strong knowledge of database management systems like PostgreSQL, MySQL, and MongoDB. - Well-versed in agile methodologies like Scrum and Kanban, with a solution-oriented approach to project objectives.
- Blockchain developer / Software Engineer with 5 years of experience in the field. - Proficient in programming languages such as Solidity, Rust, and Python. - Extensive knowledge and experience in blockchain technologies including Ethereum, Optimism, Waffle, Truffle, and Ganache. - Skilled in backend development using frameworks like Django, Django Rest Framework, and FastAPI. - Experienced in working with databases like PostgreSQL and MongoDB. - Proficient in cloud services and DevOps tools such as AWS, Docker, and Docker Compose. - Strong expertise in version control systems like Git and collaboration platforms like Bitbucket and GitHub.
- More than 8 years of professional experience in backend development. - Proficiency at application architecture principles (including SOLID / DDD / DRY / KISS). - Understanding and efficient usage of design patterns. - Extensive experience in designing and implementing Cloud-based solutions across various delivery methods (SaaS, PaaS, IaaS), enhancing scalability, flexibility, and cost-efficiency. - Project/ tasks estimation (concept-based, milestone, roadmap, detailed). Agile / Scrum / Kanban (both team management & development). - Test-driven development (real unit- & acceptance- tests usage everyday). - High load optimization (both game backend and enterprise system solutions).
- Strong abilities working as Head of Projects Managers in a large technological company with several products; - Product manager with experience in NFT, GameFi, and FinTECH projects. - Nearly 11 years in IT domain positions like - Business Analyst, Project Manager, Product Manager, Marketing Manager, and PHP coder; - Strong skills working as a Delivery Manager; - In-depth knowledge of creating roadmaps and launching MVPs of blockchain projects; - Deep Experience with DeFi projects and Centralized Exchanges; - Good knowledge of creating and launching versions of launchpad, staking, and mobile crypto wallet for blockchain projects; - Experience in building teams and managing different types of projects to the market launch; - Work experience in creating the optimal product structure of the project; - Good skills in creating complete project documentation; - Experience in creating and launching a project brand; - Upper-Intermediate English; - Available: ASAP.
Alexander P. is a PHP developer with experience in building and supporting websites using PHP based frameworks. He has a Master's Degree in Information control systems and technologies. Some of his key technical skills include PHP, MySQL, REST, Laravel, WordPress, JavaScript, jQuery, AJAX, Vue.js, Git, XML, HTML, CSS, CI/CD, Docker, Google APIs, and Facebook API. He has worked on projects such as an online marketplace for booking event spaces, a CRM system for managing claims and vehicle repairs, and an iOS/Android application for meeting. Alexander has a strong background in software engineering and computer science education, with several years of experience in the field. He is proficient in various programming languages, technologies, and tools, and has experience with different methodologies, principles, and patterns in software development. Alexander's technical expertise and domain knowledge make him a standout candidate for software engineering positions.
- Self-motivated and result-driven front-end developer with 5+ years of experience - Skilled in Angular and JavaScript, with extensive experience in their development and ecosystem - Strong ability to write clean code, debug performance issues, and implement features based on client and user needs - Possesses good logical thinking and a high level of responsibility - Excellent attention to detail and ability to work well in a team - Proficient in various programming languages and technologies such as JavaScript, TypeScript, HTML, CSS, SASS, Angular 2+, npm, Webpack, Redux, Rest API, RWD, Figma, Bootstrap, rxJS, docker, ionic, firebase, and JWT - Experienced in working with databases like MongoDB and MySQL, and familiar with source controls like GIT and tracking systems like Jira and Trello. - Intermediate English - Availability starting from ASAP
- 9+ years of experience in IT; - Experience working with Blockchain products; - Deep knowledge and skills in development of fintech products (CeFi/DeFi); - Work experience with Development and work on UI / UX design, and web programming (HTML, CSS); - Familiar with logic controller and CNC machine programming; - Experience in project management and sales - Good skills in organizing the work process in a team using Agile methodology; - Good understanding and vision of product development and its design solution; - Upper-Intermediate English; - Available ASAP.
- 10+ years overall of experience in IT - Management: Change management, Program management, Project management, Account management - Upper-Intermediate English
Developer
- 3+ years of experience in the IT industry as a Java Software Engineer - Upper-Intermediate English - Upper-Intermediate German - Available ASAP
- 10+ years of IT industry - Highly skilled software engineer with experience leading operations in software development projects. - Proficient in project management methodologies including Agile development with a focus on reducing costs and shortening process times. - Upper-intermediate English - Available ASAP
- 12+ years of experience. - Present talks, explain and give classes about web3 concepts and integrations for blockchain, NFTs, cryptocurrencies, and metaverses. - Bridged the gap between Product/Product Marketing providing data for ‘wants vs. needs’ of dev community for product development. - Executed production strategies and campaigns to more than 500 million users worldwide for all content available on Google Play store. - Led the product development for a multi-million dollar mobile Disney game planning sprints and restructuring the entire project. - Directed product development at five tech and game startup companies simultaneously while getting a Master of Science degree. - Led development of ground-breaking web projects at my own startup using custom-built systems and advanced API integrations. - Upper-intermediate English. - Available ASAP.
Product manager with experience in blockchain development, smart contracts, oracle authenticity, and also creation, implementation, and development of NFT products. - Solid knowledge of blockchain and smart contract. - Strong NFT project management skills. - 10+ years of experience. - Fluent English. - Available ASAP.
- A technology professional with 5+ years of experience in the blockchain industry, I specialize in the development of secure and reliable distributed ledger applications and smart contracts. - I am highly skilled in Ethereum, Aptos, Polkadot, and other distributed ledger technologies. Additionally, I have experience building and managing blockchain networks, developing core components and custom modules, deploying and operating blockchain nodes, and creating BaaS functionality for enterprise customers. My skillset also includes working with Solidity, Golang, Rust, Move, Cosmos SDK, CosmWasm, DeFi, DEX, and Multi-Chain Metaverse. - Try to learn new things and update your knowledge. Committed to the clients and always work with 100% client satisfaction.
- Developer with 18+ years of experience in large IT companies , with Bachelor’s Degree in Systems Analysis and Blockchain Engineer training. - Developer of Smart Contracts and tokens since 2017 (Solidity -EVM ) and a great enthusiast participant in the world of cryptocurrencies since 2014. - Data Science Academy Mentor in 2020. - Advanced English. - Available ASAP.
Product manager with experience in NFT project. - Almost 9 years of diverse experience in tech: Product Management, Agile Project Management and Business Analysis. - Upper-intermediate English. - Available ASAP
- Development and security audit of smart contracts for EVM compatible blockchains. - Deep experience in the development of NFT (ERC721/1155) tokens and in the Defi industry. - Upper-intermediate English. - Available ASAP.
- Been in Crypto space since 2017 and contributed to several DeFi and NFT projects on EVM chains. - Have deep understanding about most of the DeFi primitives including trading, staking, lending/borrowing, liquidity mining and bonding. - Intermediate English - Available ASAP
- Experience working with Solidity, and Hardhat; - Good abilities in creating smart contracts for dApps; - Good skills in creating plugins to integrate web3 in unity/unreal space from scratch; - Deep understanding of JavaScript, and React; - 5 years of expertise with Unity; - Experience with 2d/3d/Ar games with unity; - Good skills working with blackened for unity applications; - Experience with Photon, SmartfoxServer, and Nodejs; - Extensive knowledge of creating plugins for unity using Python, C++, and android studio; - English: Intermedidate.
- 6+ years of experience in iOS development; - In-depth knowledge of iOS SDK; - Experience working with fintech and cryptocurrency projects; - Good knowledge of the development of different mobile projects; - Experience working with Objective-C; - Deep abilities with Swift; - Good skills working with Firebase; - Experience in UI/UX implementation; - Good skills in maintenance and testing; - Upper-Intermediate English.
- Experience working with Solidity; - Good understanding of Blockchain technology; - 3+ years of experience in Smart Contract development; - Deep skills with Hardhat, and Truffle; - Experience working with ethers.js and Web3.js; - Good knowledge of Ethereum, and BNB Chain; - Experience working on dApps, DeFi, and NFT projects; - In-depth abilities in creating and deploying ERC20, ERC721, ERC1155, BEP20, and BEP721 tokens; - Intermediate English.
- 3+ years of experience in Blockchain development; - Good in writing smart contracts - writing multi-threaded codes; - Corda with Fluency in Solidity, Events, and Web3 ( Unix, Linux, scripting); - Good understanding of NFT, NFT Marketplace, and various Defi protocols - Experience in training and mentoring newbies smart contract auditors within the team; - Hands-on experience working on Ethereum and Hyperledger; - Good skills with C, C++, Java, HTML, Javascript, Golang, Node js, Python, React.js; - Knowledge of technical writing and research on Blockchain and Cybersecurity; - Intermediate English.
- Blockchain Developer with 5+ yrs of experience - Motivated to learn and deploy new technologies to bring transparency, decentralization, security & equality at low cost. - Advance Daaps development: Solidity+Web3(React) - Layer 2 Scaling Solution (Polygon), Avalanche(AVAX) - NFT Marketplace(ERC - 721/1155), Crypto Payment Solutions & DeFi Cross Chain Bridges - ERC-20 Tokens, ICO, DEX, Staking, Swapping - DAO + Multi-Sigs Wallets - Available ASAP
-Coins, tokenomics, community -DeFi -Play2Earn -Metaverses -Nodes and testnets -NFT -Analysis of smart contracts, identification of scam types (Regpool, Honeypot, etc.) -Lunchpad operation and private project rounds -Successful cases in trading due to fundamental and technical analysis (spot trading) - Advanced English - Available: ASAP
Acquired a bachelor's degree in Information Systems from UNIVEM in Brazil. Since 2014 work as a Web Developer and since 2021, I have been working closely with Web3 technologies. I always look to broaden my knowledge in the area and enjoy participating in new projects. - 8+ years experience in software development; - 5+ years experience with Ruby on Rails; - 3+ years experience with React / Next; - Experience working on projects related to the NFT marketplace and Web3 integration; - Good skills use Solidity for creating smart contracts (ERC-721 tokens); - Experience working with TypeScript, Go on different blockchain projects; - Worked with projects in the field of DeFi and DAO; - Intermediate English; - Available ASAP.
- 7+ Year Experience of leading teams and developing products. - Led teams of 5 to 60 people across technology, business, marketing and design. - Proficient in Design and Prototyping tools, specially Figma, Familiar with Data visualization, Agile Development, Business Analysis, Software development life cycle(SDLC), A/B Experimentation - Search Engine and AdSense Optimization, Social Media Marketing tools, Flask, Latex - Upper-Intermediate English. - Available ASAP
- A dedicated and goal-oriented individual with 3+ years of experience in the field of blockchain research and development; - Developed a blockchain prototype application that helps track the expenditure of public funds; - Conducted workshops, seminars, and webinars for students and professionals on various blockchain technologies; - Developed blockchain smart contracts for a central government-funded vaccination supply chain management project using Solidity; - Available: ASAP.
- Web Developer for 6 years in both Front-end and Back-end web development. - Good experience in Blockchain and solidity. - Upper-Intermediate English. - Available ASAP.
- Acquisition of global web development expertise for 7 years, possessing the ability to overcome pressure and stressful conditions, 3 years of architecture and design technology in a wide range of blockchain fields including Dao, Defi and NFT - Advanced English - Available ASAP
- 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.