Engineering leader and software engineer based in Berlin with 15+ years of experience building distributed systems, platform infrastructure, and data-intensive software across fintech, payments, e-commerce, logistics, and supply chain. Currently engineering leader and site lead at Wayfair.
I open sourced a drop-in server-side StoreKit 2 backend for Cloudflare Workers and D1. Apple JWS verification, entitlement resolution, and App Store Server Notifications V2, without handing a percentage of subscription revenue to a third-party SaaS.
AI tools are getting better, but project context still gets reconstructed inside every new session. The missing layer is durable, reproducible project context shared across tools.
AI Switcher Desktop is the first alpha of the GUI companion to `aisw`, making local multi-account switching easier for Claude Code, Codex CLI, Antigravity, and Gemini CLI across work, personal, and client setups.
AI Switcher (`aisw`) is a local CLI for switching between multiple Claude Code, Codex CLI, and Gemini CLI accounts with named profiles, reusable contexts, safer credential handling, and one status command.
None of the major AI coding CLIs support multiple accounts natively. I built aisw, a lightweight CLI tool to manage and switch between credential profiles across Claude Code, Codex CLI, and Gemini CLI with a single command.
If models write more of the code and humans increasingly review, constrain, and verify it, then popularity in the human-coded era is not the same thing as fitness for the next one. The harder problem is no longer just producing code. It is building stacks that can survive cheap generation without collapsing under ambiguity, review burden, and correctness debt.
Code production is no longer our bottleneck. The newfound velocity of AI coding agents hasn't solved our problems; it has simply moved the bottleneck further down the pipeline, creating massive SDLC backpressure. The human "Looks Good To Me" on a PR is now the single biggest liability in deployment. It’s time to stop acting like typists and start acting like architects.
AI dramatically accelerated individual coding and local execution. End-to-end delivery barely moved. We optimized leaf-node execution but left the tree structure completely manual. Business intent (“add fraud detection”) decomposes into tasks across teams, each carrying implicit assumptions that only conflict during integration. Performance budgets, data freshness requirements, and retry semantics…
The first real test of your infrastructure-as-code understanding: creating the Terraform state backend when it doesn't exist yet. My personal reference for handling the bootstrap problem across different scenarios. Covers production failure patterns, the bootstrap module approach that survives audits, migrating existing infrastructure, S3-compatible backend quirks, and a complete checklist. ~15…
Every infrastructure project starts with the same question: workspaces or folders? One repo or many? I've structured Terraform for multiple environments six different ways. Watched a senior engineer scale prod down to dev instance counts because workspace selection is invisible. Seen AWS bills spike 40% because someone copy-pasted the wrong tfvars. Here's what actually works for teams under 25…
Mobile apps ruled the last decade, but AI is quietly dismantling the foundations they were built on. From declining iOS and Android job postings to LLM interfaces replacing entire app flows, this piece argues the golden age of mobile development is over and what comes next might not even run on iOS or Android.