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4thel00z/README.md

Product Engineer (AI)

I build and ship product features end-to-end: from idea β†’ architecture β†’ implementation β†’ shipping β†’ iterating with real-world customer feedback.

What I build

  • AI-assisted product features (agents, retrieval, evaluation workflows)
  • Backend APIs and services (clean contracts, pragmatic architecture)
  • Event-driven systems and integrations
  • Observability-first systems (metrics, logs, traces; debuggable by default)
  • Developer experience (SDKs, tooling, paved roads)

How I work

  • Strong ownership, fast iteration, and clear communication
  • prefer boring, reliable solutions (and I know when not to)
  • care about maintainability: tests where they matter, docs where they help
  • like tight feedback loops: instrument, ship, observe, improve

Current interests

  • Product engineering in the AI space (agents, retrieval, evals, guardrails)
  • Building systems that are simple to operate and hard to break

Toolbox

  • Core: Python, Go, Rust, TypeScript
  • Data: Postgres, MySQL, SQLite, Redis, Qdrant
  • Infra: Linux, Docker, Kubernetes, Terraform, Helm
  • Messaging & async: Kafka, RabbitMQ, SQS/SNS, Temporal, DBOS
  • Cloud: AWS (primary), plus Azure/GCP when needed
  • Observability: OpenTelemetry, Prometheus, Grafana, tracing/telemetry-first debugging
  • AI systems: RAG/search workflows, evaluation harnesses, retrieval quality loops, guardrails

πŸ“¬ Contact

Open to product engineering roles at early-stage startups (especially in the AI space).

Recent projects

  • webhookd β€” Why trust online webhook services with your data when you can run your own webhooks? 🎣 β€’ Go β€” latest release: v1.1.0 (2025-12-25)
  • 4thel00z β€” My github frontpage.
  • percently β€” ⚑️ Blazing-fast percentile calculator (p50/p95/p99) in Rust β€” with Python bindings β€’ Rust
  • lambda β€” 🧰 Functional programming helpers for Go β€” βœ… Option-based error handling, πŸ”— fluent pipelines, ⚑ parallel + channel utilities (with generics) β€’ Go
  • personal β€” πŸš€ Next.js + Tailwind v4 personal site: MDX blog πŸ“, RSS πŸ“‘, projects 🧩, themes 🎨, and a ⌘K command palette β€’ TypeScript
  • html2md β€” πŸ“ Markdown β†’ self‑contained HTML in seconds (Tailwind v4 + DaisyUI themes) β€’ CSS β€” latest release: html2md-v0.4.0 (2025-12-23)
  • qdrant-bench β€’ Python
  • bath β€” 🚿 bath – A TUI tool for managing $PATH, compiler flags & env vars like a sane person. πŸ› οΈ Store profiles in SQLite, fuzzy search, live export preview. πŸ”₯ eval-ready exports, no weird shell scripts. β€’ Rust β€” latest release: v0.3.3 (2025-12-19)

Pinned Loading

  1. slurp slurp Public

    Cross-Document RAG eval dataset generator with Confluence crawler and LLM-powered question generation using clean architecture

    Python 2

  2. lambda lambda Public

    🧰 Functional programming helpers for Go β€” βœ… Option-based error handling, πŸ”— fluent pipelines, ⚑ parallel + channel utilities (with generics)

    Go 4

  3. sdkgen sdkgen Public

    OpenAPI SDK generator for humans. Type-safe, async-first, developer-friendly.

    Python 1

  4. webhookd webhookd Public

    Why trust online webhook services with your data when you can run your own webhooks? 🎣

    Go 5

  5. libdns libdns Public

    Aspiring to be the goto DNS library for Go

    Go

  6. percently percently Public

    ⚑️ Blazing-fast percentile calculator (p50/p95/p99) in Rust β€” with Python bindings

    Rust