Hi, I'm Takeshi Ishikawa, a senior full-stack engineer based in Fukuoka, Japan. I specialize in building scalable web applications and distributed systems, with a strong focus on blockchain, DeFi protocols, and NFT platforms. Over 7+ years, I've shipped production-grade features from concept to deployment, leading cross-functional teams and delivering secure, high-performance solutions.\n\nI blend deep Web3 expertise (Solidity, Hardhat, Ethers.js, Web3.js) with modern frontend and backend frameworks (React, Next.js, Vue, Node.js, Python, Go). I enjoy architecting robust CI/CD pipelines, optimizing performance, and turning complex requirements into elegant, user-friendly products. When I'm not coding, I mentor startups and contribute to open-source blockchain communities.…

Takeshi Ishikawa

Hi, I'm Takeshi Ishikawa, a senior full-stack engineer based in Fukuoka, Japan. I specialize in building scalable web applications and distributed systems, with a strong focus on blockchain, DeFi protocols, and NFT platforms. Over 7+ years, I've shipped production-grade features from concept to deployment, leading cross-functional teams and delivering secure, high-performance solutions.\n\nI blend deep Web3 expertise (Solidity, Hardhat, Ethers.js, Web3.js) with modern frontend and backend frameworks (React, Next.js, Vue, Node.js, Python, Go). I enjoy architecting robust CI/CD pipelines, optimizing performance, and turning complex requirements into elegant, user-friendly products. When I'm not coding, I mentor startups and contribute to open-source blockchain communities.…

Available to hire

Hi, I’m Takeshi Ishikawa, a senior full-stack engineer based in Fukuoka, Japan. I specialize in building scalable web applications and distributed systems, with a strong focus on blockchain, DeFi protocols, and NFT platforms. Over 7+ years, I’ve shipped production-grade features from concept to deployment, leading cross-functional teams and delivering secure, high-performance solutions.\n\nI blend deep Web3 expertise (Solidity, Hardhat, Ethers.js, Web3.js) with modern frontend and backend frameworks (React, Next.js, Vue, Node.js, Python, Go). I enjoy architecting robust CI/CD pipelines, optimizing performance, and turning complex requirements into elegant, user-friendly products. When I’m not coding, I mentor startups and contribute to open-source blockchain communities.

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Skills

Experience Level

Solidity
Expert
Node.js
Expert
Docker
Expert
Ethers.js
Expert
JavaScript
Expert
AWS
Expert
Ethereum
Expert
MongoDB
Expert
Web3
Expert
TypeScript
Expert
Tailwind
Expert
SQL
Expert
Python
Expert
PostgreSQL
Expert
PHP
Expert
Laravel
Expert
GitHub
Expert
Express
Expert
MySQL
Expert
GraphQL
Expert
Django
Expert
Redis
Expert
DynamoDB
Expert
Vue.js
Expert
Moralis
Expert
NFT
Expert
Kubernetes
Expert
Jira
Expert
Go
Intermediate
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Language

English
Fluent

Work Experience

Full-Stack Engineer at BC Blockchain Bets
November 20, 2023 - August 20, 2025
Led full-stack online sports betting and casino platform from the ground up, integrating a secure cryptocurrency payment system via NOW Payments.
Full-Stack Engineer at Phantom Network (PxN)
September 20, 2022 - August 20, 2023
Developed a leading e-commerce platform for purchasing physical goods with cryptocurrency, featuring a custom payment gateway, shipping modules, and express checkout.
Full-Stack Engineer at NEX 10 LABS
September 20, 2021 - August 20, 2022
Developed and audited core smart contracts for NFT minting, staking, and upgradeable proxy systems, incorporating feedback from a successful Halborn security audit.
Technical Advisor | Lead at Divvy.Bet
September 1, 2021 - December 1, 2021
Advised early-stage startup on technical strategy and product direction in the crypto-backed sports betting space. Led the integration of crypto-to-currency betting mechanisms and third-party sports data APIs into the platform. Contributed to client acquisition and roadmap planning.
Front-End Developer at Don-key Finance
February 1, 2021 - July 1, 2021
Developed front-end features for a DeFi platform, implementing core UI components and integrating with Web3 workflows.
Full-Stack Developer at Fukuoka Software Development Co., Ltd.
August 1, 2018 - February 1, 2020
Developed full-stack features for influencer marketing and e-commerce platforms using Node.js, Laravel, and Django. Created reusable, complex UI components with React and Vue, and managed deployments across AWS and GCP.
Front-End Developer at LegalTech Hub
April 1, 2020 - March 1, 2021
Built mobile-responsive UI components using Vue.js and Nuxt.js with a server-side rendered application. Diagnosed and resolved critical front-end performance issues, including customization of third-party packages.
Full-Stack Engineer at Next10 Labs
September 1, 2021 - August 1, 2022
Developed and audited core smart contracts for NFT minting, staking, and upgradeable proxies; built a full-stack NFT marketplace (Next.js/React frontend, MongoDB backend) and integrated deployed staking contracts.
Full-Stack Engineer at Don-key Finance
February 1, 2021 - July 1, 2021
Developed core DeFi protocol contracts, including governance (DON token), staking, and cross-chain bridging functionality; implemented secure wallet-signature authentication and reactive UI components.
Full-Stack Engineer at Fukuoka Software Development Co., Ltd.
August 1, 2018 - February 1, 2020
Developed full-stack features for influencer marketing and e-commerce platforms using Node.js, Laravel, and Django; created reusable UI components and managed deployments across AWS and GCP.

Education

Bachelor's Degree in Computer Science at Fukuoka Institute of Technology
January 1, 2014 - January 1, 2018

Qualifications

Add your qualifications or awards here.

Industry Experience

Software & Internet, Gaming, Financial Services, Media & Entertainment
    paper Grey Market​

    A React/Next.js Web3 platform with Solidity contracts and DynamoDB backend.