Summary
✨ AI‑Generated
Join a small autonomous SRE/Platform team responsible for security, reliability, and cost efficiency across cloud infrastructure and backend systems. You will work with Go, TypeScript, Python, AWS, Terraform, modern CI/CD, observability, security tooling, and multi-cloud governance while supporting high-traffic enterprise infrastructure.
Highlights
Own security, reliability, and cost efficiency across the stack in a small autonomous team. The role offers high-scale B2B infrastructure work, flextime, and a hybrid schedule with limited onsite attendance.
Description
SRE & Platform Engineer
¥8.0M – ¥13.0M JPY/year
Hybrid remote (~1x/week onsite) · Flextime · Tokyo
A fast-scaling AI-powered SaaS platform trusted by major enterprises, SaaS companies, and public-sector clients across Japan.
As traffic and data volume surge, this client is building a small, autonomous SRE/Platform team to own security, reliability, and cost efficiency across the entire stack, from cloud infrastructure to backend application code.
This is a rare shot at high-traffic B2B infrastructure work, independent of the feature roadmap.
Environment & Tech Stack
Languages: Go, TypeScript, PythonCloud & IaC: AWS (ECS/Fargate, CloudFront), Terraform, CDKCI/CD: GitHub Actions, CircleCIObservability: Datadog, Sentry, CloudWatchSecurity: CSPM, SCA, external pentesting, auth/authz redesignMulti-cloud, multi-AI-model infrastructure governanceAI-augmented dev workflow: GitHub Copilot, Cursor, DevinSmall, cross-functional team spanning app, infra, and architecture
What We're Looking For
Solid programming background (Go, Java, or Python) and cloud infra ops experience handling high request/data volumesInterest in security, governance, and FinOpsContainer or microservices and B2B/B2C SaaS experience a plusA collaborative, detail-oriented communicator who enjoys building, not just maintaining
This team shapes where the architecture goes next, not just keeps the lights on.
You'll have real input on how we secure, scale, and govern infrastructure as the platform integrates more AI models and lands larger enterprise clients.
Whether you lean toward deep SRE work or broader platform engineering, there's room to grow, in a flexible, supportive culture
