Freelance Blockchain Developer2021 - PRESENTToptal Client
Technologies: Node.js, Ethereum, Solidity, Hardhat, ERC20, ERC721, MongoDB, PostgreSQL, Hyperledger Indy, Hyperledger Aries, Truffle, Blockchain, Smart Contracts, Ethereum Smart Contracts, Cryptocurrency, Python, Ethers.js, Web3.js, Git, Non-fungible Tokens (NFT), Express.js, REST APIs, TypeScript, TypeORM, Bitcoin, Decentralized Finance (DeFi)
- Developed a front-runner trading bot for a private investor with Solidity and Node.js.
- Handled different SSI projects and helped design a new product from the beginning.
- Constructed a payment gateway to integrate an existing payment platform with the Ethereum network.
Blockchain Developer2019 - 2021Harvey Nash
- Developed an SSI project from scratch, participating in all phases since its conception and architecture implementation with Hyperledger Indy and Aries to exchange master data and industrial certificates between two big German companies.
- Set up an agile mindset while working with conservative customers.
- Implemented a price and order negotiation system on Corda for low-trust and volatile price businesses.
DLT Software Developer2018 - 2019The Debtvision
Technologies: Corda, Kotlin, Spring Boot, Digital Signatures, Software Architecture, PostgreSQL, Decentralized Applications, System Architecture, Product Design, React, Distributed Ledgers, Distributed Ledger Technology, R3 Corda, SQL, Express.js, REST APIs
- Contributed to a successful startup in its founding era.
- Designed and developed a decentralized system to manage multi-million euro loans and documents related to the loan.
- Oversaw external development and consulted the team on security issues.
Software Engineer2016 - 2018Harvey Nash
- Developed a loan transaction platform between Daimler AG and LBBW on the Proof of Authority (PoA) Ethereum network.
- Developed an environmental reward coin for Mercedes-Benz cars and a mobile application with a gamification aspect.
- Contributed to establishing a new team, forming an outstanding team culture, and hiring new colleagues.
Co-founder | Software Developer2010 - 2016Bal Yazilim Limited
- Managed a team of six. The team was first formed with junior developers, but after some time and long training sessions, I was proud of the team and their capacity.
- Collaborated with a large number of different customers for over seven years, with a 100% return rate among customers.
- Led the core team on an online training platform for the biggest GSM operator in Turkey.