Open to opportunities

Shigeki Kakutani

@shigekikakutani

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Full Stack Developer with 8+ years building AI, security, blockchain and e-commerce platforms.

Japan

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What I'm looking for

I’m looking for a team where I can build high-quality, high-speed products end-to-end across full stack, AI and security, owning delivery with clear requirements and strong CI/CD—so results stay measurable and reliable.

I’m an experienced and professional Full Stack Developer with 8+ years working across AI, Security, Education, Blockchain, and e-commerce. My vision is “High Quality, High Speed and High satisfaction service,” and I’m used to meeting requirements and producing all assigned results with more than 99% success.

In my recent role, I restored and maintained an AI image processing system with Laravel and GCP, then published v2 from scratch using Next.js, Node.js, and MongoDB—also integrating Stripe payments and Google SSO via NextAuth. I played a key role migrating server infra from GCP to AWS, implemented CI/CD pipelines between AWS and Git, and managed production backend using Nginx and PM2 while expanding UI and building 10+ business components for the ResilientX Security platform.

Experience

Work history, roles, and key accomplishments

Current

Full Stack Developer

Current

Proptexx

Sep 2024 - Present (1 year 9 months)

Restored and maintained an AI image processing system (v1) with Laravel on GCP, then built v2 from scratch using Next.js, Node.js, and MongoDB. Integrated Stripe payments and Google SSO (NextAuth), migrated infrastructure from GCP to AWS, and set up AWS↔Git CI/CD while managing production deployment with Nginx and PM2.

Laravel Next.js Node MongoDB Stripe AWS CI CD Nginx PM2

Full Stack Developer

StreamSix

Jan 2022 - Aug 2024 (2 years 7 months)

Developed TV-show game features for WheelofFortune using Unity, React (TypeScript), ASP.NET, and Phaser, including REST APIs supporting 3,000+ simultaneous users. Built client experiences in Angular with NgRx/RxJS, developed backend services with Node.js and Go, and implemented DEX trading bots (sniper/arbitrage) using Solana tooling.

Unity React Typescript ASP.NET Phaser Go Angular RxJS RabbitMQ Solana

Full Stack Developer

SelfMade

Dec 2018 - Dec 2021 (3 years)

Helped build AppSecEngineer admin and learning/assessment portals with Quasar, migrating from Vue 2 to Vue 3 and Vuex to Pinia. Created 30+ responsive landing pages and migrated Nuxt2→Nuxt3 and Sass→Tailwind CSS, then built a football blockchain platform with React (TypeScript) and Django while optimizing performance across 10+ pages.

Tailwind React Typescript Django Smart Contracts Performance Optimization

Front End Developer

Yumscroll

Apr 2015 - Nov 2018 (3 years 7 months)

Built 30+ responsive landing pages using HTML/CSS/Bootstrap, Vue.js, and Angular in collaboration with UI/UX designers, and improved styling workflows with SASS. Delivered PHP (Laravel/CI) site features and created scalable React/Express REST components, including mobile delivery work that achieved 4.8-star ratings and 100,000+ downloads within three months.

Responsive Design Vue.Js Angular Bootstrap SASS PHP (Laravel)React RESTful APIs