Yavuz Selim Tunçer
Bursa
Summary
Blockchain-focused software engineer with hands-on experience in smart contract development, zero-knowledge applications, and Web3 infrastructure. Delivered NFT collections, contributed to audit-ready projects, and worked with Ethereum, zkSync, and Mina. Proficient in Solidity, Chainlink, OpenZeppelin, and Cyfrin tools, with a strong focus on secure-by-design development and testing.
Also experienced in fullstack development using Node.js, Express.js, MongoDB, React.js, and Next.js. Built and deployed RESTful APIs, implemented backend services with Docker and Redis, and collaborated on scalable, maintainable systems.
Skilled in writing automated and manual tests with Jest and Postman. Applied regression testing, API validation, and test planning across multiple projects.
Open to relocation for full-time opportunities focused on technical excellence and product quality.
Overview
3
3
years of professional experience
1
1
Certification
Work History
Web3 Engineer
Dashone Tech
10.2023 - Current
- Researched and developed Web3-based applications in RWA tokenization and carbon credit exchange.
- Contributed market/tech research and worked on loyalty dApp strategies and infrastructure.
- Designed and tested smart contracts using Solidity, Hardhat, and OpenZeppelin standards; contributed to audit preparation and bug bounty readiness.
- Contributed to RESTful APIs and backend logic using Node.js and Express.js.
- Built testing strategies with manual and automated test suites using Jest and Postman; focused on edge cases and security scenarios.
- Collaborated with frontend developers to ensure smooth integration with React-based interfaces.
Smart Contract Developer
Fluton Labs
02.2025 - 04.2025
- Developed FHE-integrated smart contracts for an intent-based cross-chain bridging prototype.
- Explored secure messaging and encrypted computation within EVM-compatible systems.
- Collaborated on PoC delivery with both backend and frontend teams to ensure system reliability.
Backend Developer
Choz
12.2023 - 03.2025
- Built backend infrastructure for a zkApp-based decentralized exam system on the Mina Protocol.
- Designed REST APIs using TypeScript, Express.js, and Bun.js; used MongoDB for data persistence.
- Applied Docker and Redis for service containerization and caching.
- Wrote unit and integration tests with Jest; validated API behavior and authentication with Postman.
- Collaborated closely with frontend developers to ensure end-to-end application consistency.
Software Engineer Intern
Dashone Tech
07.2023 - 09.2023
- Developed and deployed an Ethereum NFT collection using ERC-721A and Merkle Trees for optimized gas costs and whitelist verification.
- Implemented custom testing pipelines for smart contract reliability and gas efficiency.
- Conducted research for token utility and NFT marketplace integrations.
- Exploring technology integration for the NFT collection with suitable marketplaces to streamline adoption and user experience.
Freelance Developer
Own Business
01.2023 - Current
- Deployed live NFT collections on zkSync and Ethereum networks.
- Delivered small-scale dApps and smart contracts through Upwork, Fiverr, and Bionluk.
- Experimented with algorithmic stablecoins, NFT marketplaces, lotteries, account abstraction, and cross-chain rebase tokens.
- Developed custom hobby fullstack web apps and performed manual/automated testing.
Education
B.Sc. in Computer Science
Turkish-German University
Istanbul06.2025
High School
Bursa Anatolian High School
Bursa06.2020
Skills
- Solidity, Hardhat, Foundry, Chainlink Services, OpenZeppelin, zkApps, o1js, ERC-721A, Merkle Trees, IPFS, Thirdweb, Cyfrin Tools, FHE, Account Abstraction
- Nodejs, Expressjs, Bunjs, Python, FastAPI, Flask, REST API, MongoDB, Redis, Docker, OAuth2, Git, GitHub
- JavaScript, TypeScript, Reactjs, Nextjs, HTML, CSS
- Postman, Jest, Manual Testing, Automated Testing, Regression Testing, Test Planning, API Validation
- Git, GitHub, Agile Workflow
Certification
- Cyfrin Updraft | Blockchain, Solidity and Smart Contracts | Completed Coursework: Blockchain Basics, Solidity Fundamentals, Foundry Fundamentals, Advanced Foundry, Fullstack Web3 Development, Smart Contract DevOps
- BUYEM | Blockchain and Cryptocurrencies Education | 05/2021
- ETHGlobal Istanbul 2023 | Mina Protocol 4th Place | 11/2023
Languages
Turkish
Bilingual or Proficient (C2)
English
Upper intermediate (B2)
German
Upper intermediate (B2)
Additional Information
- Cyfrin Updraft | Remote
Ambassador | 10/2024 - Present
- Promoted secure smart contract development and Cyfrin Updraft content within Turkish developer community.
- Supported onboarding and education of junior developers in Solidity and auditing best practices. - Chainlink Labs | Remote
Community Advocate | 11/2023 - Present
- Engaged Turkish-speaking developers with Chainlink tools and products.
- Delivered presentations and technical guidance in Web3-focused events and community workshops. - Mina Foundation | Remote
Mina Navigator | 11/2023 - 03/2025
- Participated in the Mina Navigator developer program through "Choz" project.
- Learned zkApps using o1js and contributed to Mina ecosystem documentation and development standards. - TAU Blockchain | Istanbul
Co-founder, Author and Instructor | 05/2022 - 06/2025
- Organized workshops and internal trainings on smart contracts, DeFi, and Web3 tools.
- Authored and translated educational material to grow blockchain literacy within university.
Timeline
Smart Contract Developer
Fluton Labs
02.2025 - 04.2025
Backend Developer
Choz
12.2023 - 03.2025
Web3 Engineer
Dashone Tech
10.2023 - Current
Software Engineer Intern
Dashone Tech
07.2023 - 09.2023
Freelance Developer
Own Business
01.2023 - Current
B.Sc. in Computer Science
Turkish-German University
High School
Bursa Anatolian High School