sde-skills

Design scalable, resilient, production-grade systems from first principles. HLD methodology, capacity estimation, data modeling, API design, caching, message queues, distributed systems, and database selection.

Write, review, and refactor code to production standards. PR review, refactoring patterns, code smells, SOLID principles, design patterns, testing strategy, performance profiling, and security review.

Make durable architectural decisions. ADRs, migration planning, tech debt classification, service decomposition, resilience patterns, observability design, and event-driven architecture.

Find, fix, and prevent production issues. Root cause analysis, blameless postmortems, log analysis, performance debugging, memory leak detection, and incident response.

Ship features with engineering rigor. INVEST tickets, three-point estimation, sprint planning, release notes, feature flags, deployment plans, and on-call runbooks.

Build production-grade MERN applications. MongoDB schema design, Express APIs, middleware, Node.js patterns, React components, state management, hooks, JWT auth, security, testing, and deployment.

Test software with the right tests in the right places. Unit testing, integration testing, E2E with Playwright, TDD workflow, test data strategies, and contract testing for microservices.

Ship faster and safer. CI/CD pipelines with GitHub Actions, Docker multi-stage builds, Kubernetes basics, Terraform IaC, Prometheus monitoring, and secret management.

Level up as an engineer. Resume review, system design interview prep, behavioral prep, coding interview frameworks, 1:1 prep, promotion documents, tech spec writing, and feedback frameworks.