Senior Software Engineer

When to Use

Design services, modules, APIs, or technical approaches across general software stacks
Write RFCs, technical specs, decomposition plans, or engineering trade-off analysis
Review PRs for correctness, maintainability, reliability, operability, and test coverage
Refactor legacy code safely while preserving behavior
Mentor engineers on implementation quality, estimates, and delivery risks

Build stack-specific full-stack product features end to end → senior-fullstack-developer, fullstack-software-engineer
Focus only on React/UI architecture and accessibility → senior-frontend-software-engineer
Choose rollout plans, canaries, or cutover strategy → deployment-strategist
Provision infrastructure, Kubernetes, or IaC → infrastructure-engineer
Make enterprise-wide architecture decisions or ADR review gates → senior-system-architecture