Senior Software Engineer (Full-stack, AI-Native) - Simplesat

Simplesat seeks a Senior Software Engineer in Bangkok to build and maintain a real product used globally. The role involves owning features end-to-end with AI agents, ensuring output trustworthiness through automation, and making sharp technical calls on architecture and performance. The team focuses on clean, scalable architecture and real-time analytics for millions of responses.

Designing and building features end-to-end across the stack

Making AI output trustworthy with automation and self-validating loops

Refactoring toward simplicity and retiring dead code

Making sharp technical calls on architecture and performance

Sharing knowledge and raising the bar with teammates

5+ years building and shipping web applications with strong JavaScript

Experience shipping real production work using AI

Unit and frontend E2E automation validation

Track record of refactoring to reduce complexity

Comfortable building and consuming REST APIs and optimized SQL

Comfortable in English (spoken and written)

Experience designing reusable AI context, skills, or guardrails for a team

Apply via the provided link and share a story about an AI agent failure