Tsimafei Kakutani

Tsimafei Kakutani - Blockchain & AI - Detail-oriented and innovative Backend Developer with over 6 years of experience specializing in Golang, Python and C++. Expertise in developing and deploying blockchain solutions, building scalable backend systems, and integrating advanced technologies. Proven track record of delivering high-quality software solutions and collaborating effectively with cross-functional teams. Fukuoka, Japan github.com/TsimafeiKakutani SKILLS Backend Developer Blockchain architecture Smart Contract on bockchain web3 AI for Computer Vision C/C++ Expert(also Firmware developer & Unreal Engine) TECHNICAL SKILLS Backend Development RESTful APIs, gRPC, Docker, GraphQL, BaaS Blockchain & Consensus Bitcoin, Ethereum, NEO, EOS, Solana, BSC, POW, POS, DPOS Database MongoDB, Redis, ElasticSearch, MySQL, Oracle Web Frameworks Gin, Fiber, Beego, Laravel, Django, Actix DevOps Git, CI/CD, Jenkins Development Methodologies Data Structure, Agile, Scrum, Test-Driven Development (TDD), AI Programming Languages Golang, C/C++, Rust, Python, C#, Javascript, PHP, Solidity C/C++ Device Firmware Development, unreal 3D engine WORK EXPERIENCE Backend Developer Tech Solutions Inc., Austin, TX 01/2023 - 01/2024, Achievements/Tasks Developed and maintained backend services using Python and Django, supporting high-traffic web applications. Designed and optimized database schemas for PostgreSQL and MongoDB, improving query performance. Implemented automated testing frameworks, increasing code coverage and reducing bugs in production. Collaborated with front-end developers to design and implement API endpoints. Participated in the entire software development lifecycle, from requirements gathering to deployment and maintenance. Page 1 of 3 WORK EXPERIENCE Blockchain engineer Adamnite 01/2022 - 09/2022, Atlanta, Georgia, United States Adamnite Labs is a blockchain startup leading the development of Adamnite, a new layer-1 blockchain development platform geared toward allowing developers who are not that deep into Web3 to easily build scalable decentralized applications and smart contracts. Adamnite Labs is also building products that will users participating in and using cryptocurrency-based technologies to be easily onboarded without having to be familiar with the underlying technology. Achievements/Tasks Developed DPOS consensus algorithm on Adamnite blockchain using Golang and C++ satisfying the DBFT problem. Construct the P2P network of Adamnite (Written by Golang & C++) Implement gnite wallet structure (Written by Golang) Implement Cryptographic algorithms (Written by Golang & C++) Blockchain engineer Zilionixx 06/2021 - 12/2021, Zilionixx is a blockchain startup company based in Singapore and it was founded by Dr. Joe Luo in Singapore. Singapore, Singapore Achievements/Tasks Implement POS consensus algorithm on zilionixx blockchain. (Written by Golang) Implement L1 Smart contract VM. (Written by C/C++) Develop and launch smart contracts for Metaverse on Zilionixx blockchain. (Written by solidity & javascript) Block explorer & Wallet (Backend - Golang) Centralized Exchange (Backend - Golang, Frontend - React.JS) DEX(Swap) Blockchain engineer Pastel Network 03/2021 - 09/2021, Achievements/Tasks Develop RPC interface on Pastel node using C++ Develop Docker that runs Pastel node automatically using Golang Blockchain engineer QURAS 11/2016 - 06/2019, Japan Quras is a Secret Contract platform, first of its kind. Built on our own Blockchain, Quras coin will provide absolute privacy protection and bring numerous benefits to IoT to Big Data. Achievements/Tasks Implement ZK-Snarks and Ring signature on Quras blockchain. (Written by C#) Implement Quras light node, RPC node and Full node. (Written by C#) Implement backend Quras API server (Node.js express) Implement Smart contract VM engine ( Written by C#, Python, Golang, Java) Software engineer ITL Banknote 09/2016 - 11/2016, Banknote development company Achievements/Tasks Implement firmware of the Token (Ansi C) EDUCATION Computer Science Kyushu University 09/2011 - 09/2016, Page 2 of 3 LANGUAGES English Japanese Professional Working Proficiency Professional Working Proficiency INTERESTS Server manangement Blockchain research New technology Cryptographic AI Page 3 of 3