📱 The most comprehensive iOS mobile system design prep for Staff & EM interviews. 30 production-grade specs with real benchmarks, Swift code, Mermaid diagrams & mock Q&A. Built for top product companies at scale.

Claude Code skills that run Staff Engineer checks before your agent writes a line.

Gated Claude Code delivery pipeline: idea to merged PR through PRD, PRP, plan, dev, test, PR, with a deterministic sensor and a scored eval at every stage.

Principal-engineer operating mode for Claude Code: 5-phase loop, 30 red flags, cognitive layers for software and security, grounded chapter-by-chapter in 10 canonical engineering books. MIT.

Learning paths for engineers, technical PMs, and EMs developing product engineering skills — own outcomes, not just outputs.

Production-grade DevOps curriculum: zero to staff engineer. 25 modules | Labs + Runbooks + ADRs + Incident Drills | Kubernetes, CI/CD, IaC, SRE, Observability, Security, Platform Engineering.

Staff-level AI code review assistant with customizable perspectives. CLI + MCP server for Claude Desktop. Multi-LLM support (OpenAI, Anthropic, Ollama).

AI-powered real estate search with AWS serverless (Lambda, DynamoDB, S3), React/Vite frontend, OpenRouter AI. Portfolio for Realtor.com Staff SWE. Cost: $0/month (100% free tier)

Senior software engineer jobs in the US, updated daily. Staff, principal, lead, platform, data, ML, security, cloud, and DevOps roles.

A drop-in CLAUDE.md for AI agent codebases — tool loops, multi-agent orchestration, RAG, MCP servers. Provider boundaries, typed tools, eval harness, cost budgets. From The Senior Engineer's AI Prompt Vault.

A production-grade iOS Engineering Playbook covering architecture decisions, governance models, release strategy, technical debt management, and staff-level engineering practices.

A personal operating system for engineers stepping into Staff+ roles. Zero dependencies. No build step. Just open index.html.

🏛️ Claude CodeGuard: A Staff-Level Engineering Protocol that mandates deep reasoning over speed. Fixes AI laziness, prevents code omissions, and enforces architectural integrity via P0-P2 escalation and bit-perfect SEARCH/REPLACE.

A drop-in CLAUDE.md for Go service codebases. Opinionated, staff-engineer-grade. From The Senior Engineer's AI Prompt Vault.

A drop-in CLAUDE.md for Elixir / Phoenix codebases. OTP-aware, context-aware, anti-Rails-ism. From The Senior Engineer's AI Prompt Vault.

Senior Full-Stack Engineer · Fintech & AI · Zürich · open to senior / staff / principal roles

Claude Code plugin marketplace for the hard, production-critical parts of engineering — backend reliability (API contracts, idempotency, rate limiting, resilience, caching, auth), adversarial code review, and frontend motion/UX.

🛠️ Free Claude Code & Cursor prompts for senior engineers — plus AIOS, an open-source markdown memory system for coding agents. Code review, debugging, CLAUDE.md & .cursorrules templates.

Architecture lessons from tech's most demanding systems