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Hi, I’m Sebastian PE — a full-stack software engineer with 15+ years of experience building web products, backend systems, and developer tools. What I Do I work across the entire product lifecycle — from architecture and prototyping to launch and operation. My current focus: Go — high-performance backend services, concurrent systems, microservices AI & LLM Agents — prompt engineering, RAG pipelines, agentic orchestration PHP & JavaScript — full-stack web development, API design DevOps — CI/CD, observability, infrastructure as code I’ve built e-commerce platforms, web portals, CRM and ERP systems, and business tools. I also have extensive experience as a team lead and head of development, managing engineering teams and designing software architecture. ...

Open Source Project Description taskflow Dependency-free single-page task manager (PWA) with Eisenhower priorities, recurring tasks, a daily planning wizard, cross-device sync over a tiny Node backend, and one-way Google Calendar export. No framework, no build step. tagscope Local, tag-first git browser that shows which version of a service is on which environment — and how far behind it is. kubescope A local, Lens-style Kubernetes dashboard in a single Go binary: fast context switching, resource browser, global search, pod env vars and live logs. voice-typer Push-to-talk voice typing for macOS. Hold Fn, speak, release — transcribed locally by Whisper (MLX) and pasted where your cursor is. 100% offline. blog This blog — Hugo + PaperMod, auto-deployed via GitHub Actions Teaching Udemy courses on software engineering — profile