Steven
Fukase
深瀬スティーヴン
Tokyo · Fully remote
Japanese & English
Career
- 2021Freelance, client projects2021.03 – now
- 2023Full-time, in-house SaaS2023.07 – now
- 2025Engineering manager2025.07 – now
2020.04 – 2021.02 Photography, IT sales and recruiting
Stack
Hands-on years
Languages
- Rust3.5 yr
- TypeScript5.5 yr
- JavaScript5.5 yr
Frameworks
- React5.5 yr
- Next.js5.5 yr
- NestJS1 yr
Databases
- PostgreSQL5 yr
- MongoDB1 yr
Cloud
- GCP3.5 yr
- AWS2.5 yr
Also used
Actix Web · Axum · SQLx · Diesel · SeaORM · GraphQL · Express · Tailwind CSS · MUI · Docker · Cloud Run · Terraform
Projects
Payment reconciliation SaaS
Accounting
From founding engineer to hands-on manager
Rust · Actix Web · Axum · TypeScript · React · Next.js · GraphQL · PostgreSQL · Google Cloud · Terraform
Online clinic platform
Healthcare
Payment integrations and internal workflow tools
TypeScript · Next.js · Hono · Prisma · PostgreSQL · Google Cloud · Terraform
AI skills assessment
HR
From API design to the assessment and admin screens
TypeScript · NestJS · React · Tailwind CSS · PostgreSQL · AWS
Fee collection and payment SaaS
Education
Backend migration and admin screens
Ruby on Rails · NestJS · TypeScript · Next.js · MySQL · AWS
Document OCR software
Insurance
Post-processing API for OCR results
TypeScript · Express · React · Next.js · PostgreSQL · SQL Server · AWS
Wiki for organizations
Cross-industry
New features and migration to TypeScript and Next.js
TypeScript · React · Next.js · Express · MongoDB
Focus
Designing and building web services, code review, and managing an engineering team of about ten. I work across backend and frontend, and have launched new products from scratch.
Requirements · Design · Implementation · Review · Operation
DDD and clean architecture on the backend; Claude Code in development and review.
Profile
- Waseda University, 2020
- 29 years old
- TOEIC 985 · EIKEN Grade Pre-1