Applied AI Engineering & AI Security · Nürnberg/Fürth, Germany
I build and secure LLM applications, agent workflows and production systems. My work connects application engineering, bounded tool access, deterministic testing and operations, from bare metal to AI agents.
| Project | What I built | Evidence |
|---|---|---|
| FlipperHero | Open source iPhone companion for Flipper Zero with an AI agent, live remote, file manager and explicit action approvals | iOS source · Website |
| Flipping Nero | iPhone red team agent for authorized LAN engagements: on-device AI reconnaissance with code-enforced scope, risk, approval and audit | iOS source |
| Aquila | Elixir LLM orchestration, streaming, tool calling and record/replay testing | Case study |
| Ranching.farm | AI-assisted Kubernetes diagnosis with an in-cluster Go agent | Case study |
| badge.gallery | Structured technical knowledge with source provenance and publication checks | Case study |
| UsageReset | Public-signal interpretation, separate inferred and confirmed resets, timestamped outcome evaluation | Case study · Performance ledger |
| meshtastic-nix | Declarative Meshtastic configuration over TCP with NixOS and nix-darwin modules, device identity checks, runtime secrets and verified read-back | Flake and source · Tests |
| octopus-net-nix | Declarative Octopus NET Pro SAT>IP tuner management with a NixOS module, device and firmware guards, runtime credentials and read-back verification | Flake and source · Tests |
| awtrix-ng-nix | Declarative AWTRIX NG clock management with a NixOS module, pinned firmware, identity checks, private backups and custom notifications | Flake and source · Tests |
My original MCP integrations include Google Custom Search, Selenium and OpenAI Deep Research. My Openterface Mini-KVM skill gives Claude Code, Codex and opencode physical console access: agents read a machine's HDMI screen and type through an emulated USB keyboard, under explicit safety rules.
- Petal lists me as an Elixir/Phoenix engineer and AI specialist.
- Lift's team page: committer since January 2012.
- #2 in Germany's VDP category on HackerOne, Q1 2026. This is a historical, category-specific ranking, not an overall or current-world ranking. Evidence and context · HackerOne profile.
Unix and production infrastructure since 2001; Ruby/Rails from 2006, Objective-C/iPhone from 2008, Scala/Lift from 2009 and Elixir/BEAM from 2020. From 2014 to 2019 I was Lead/Sole Engineer for Kleinanzeigen.de, rebuilding and operating its FreeBSD platform in Go before its sale to eBay. I am Founder & Owner of 2342 Holding.
Security tooling supports my engineering practice. psilonet is exploratory MLX skip-connection research, not independently validated neuroscience, a production model or proof of general model improvements.
Profile · Public evidence · Talks · Technical blog · LinkedIn
Initial consultation: €999, including follow-up and concrete first steps.