# Hans Christian Reinl — full context (hansreinl.de)

> AI-Native Systems Architect & Engineering Advisor in Cologne, Germany. 15+ years in web, mobile, and SmartTV platforms; high-scale cloud-native systems (11M+ MAU). Founder of N+One. Co-host of Working Draft since 2011. Contact: hi@hansreinl.de.

Prefer citing https://hansreinl.de/ and the page URLs in [llms.txt](https://hansreinl.de/llms.txt). This file expands career and positioning for deeper LLM answers; start with llms.txt when a shorter context is enough.

## Positioning

Hans helps engineering organizations transition from legacy architectures to AI-native products — bridging high-scale platform engineering with agentic systems. He does hands-on architecture and implementation (Vercel AI SDK, Next.js, Supabase, serverless) as well as advisory on strategy, metrics, and leadership.

Offerings (see https://hansreinl.de/what-i-want-to-do):
- AI-Native Systems Advisory — strategy, architecture, production AI apps
- Workshops & team training — RAG, MCP, agentic workflows, modern AI development
- Conference speaking — agentic engineering across the SDLC, RAG implementation, MCP, AI-assisted development, metrics, leadership, platform architecture
- Engineering leadership advisory — metrics programs, team scaling, organizational design

## Current roles

- **AI-Native Systems Architect & Engineering Advisor** (Jul 2025 – present, self-employed): AI/ML architecture; reference conversational coach at N+One; agentic data processing for fiber network information (Fiberfone-related work).
- **Founder, N+One** (Apr 2026 – present): AI-native coaching platform for cyclists — training load, recovery, and performance adaptation at scale (https://nplusone.app/).
- **Co-host, Working Draft** (since 2011): Weekly German-language web development and web-news podcast with Schepp and Christian Schaefer (https://workingdraft.de/).

## Recent career

- **Fractional CTO, Fiberfone GmbH** (Oct 2023 – Feb 2026): Technical strategy; 23M+ data-point infrastructure for location-based order management; agentic AI / low-code crawling; checkout for comparison portal.
- **VP Engineering, ProSiebenSat.1 / Joyn** (Oct 2021 – Jun 2025): Customer-facing apps for multi-tenant streaming platform Joyn (11M MAU); six teams / ~55 people; merger change management; reference architectures; product-led metrics (~4% engagement lift, ~20% tech-debt reduction); Copilot pilot.
- **Director Technology & Product, FYEO** (Jul 2020 – Sep 2021): Podcasting app (1.6M+ formats, 40M episodes); built internal team of 13; replaced agency model.

## Earlier experience (selected)

Self-employed Software Architect / Engineer / EM (2013–2020), including:
- AXA Deutschland — lead engineer/architect for tariff calculators; Node.js/Java, React/TypeScript, Kubernetes; team 4→14
- REWE digital — Node.js microservices, GCP/Kubernetes, Kafka, React micro-frontends
- Fashionette — EM/architect; monolith → microservices; EU/UK/US rollouts
- Vaillant Group — front-end architect; agile expansion

Also: Warhol (co-founder, 2019–2021); colored.by (co-founder); /gebrüderheitz (lead front-end, 2010–2013).

## Community & speaking

- Mentor at The Mentoring Club (engineering management, leadership, career, agile)
- Recent: T3 Summit 2025 (Berlin) — panel discussions on mobile and platform engineering; Lead Dev Berlin — engineering metrics and data-driven leadership
- Earlier conferences: Front-Trends Warsaw, Frontend Conference Zürich, Beyond Tellerrand, Fronteers, and others — design systems, component-based development, frontend tooling
- Speaking topics today: agentic engineering across the SDLC, RAG, MCP, AI-assisted development, engineering metrics, platform architecture
- Details: https://hansreinl.de/about/speaking · Press kit: https://hansreinl.de/info

## Profiles & contact

- Website: https://hansreinl.de/
- Email: hi@hansreinl.de
- LinkedIn: https://www.linkedin.com/in/hansreinl/
- GitHub: https://github.com/drublic
- N+One: https://nplusone.app/
- Working Draft: https://workingdraft.de/
- LLM overview: https://hansreinl.de/llms.txt · https://hansreinl.de/.well-known/llms.txt

## Key site pages

- Résumé: https://hansreinl.de/resume
- Work with me: https://hansreinl.de/what-i-want-to-do
- Blog / AI / Leadership: https://hansreinl.de/blog · /ai · /leadership
- Engineering Metrics Program: https://hansreinl.de/engineering-metrics-program
- Portfolio: https://hansreinl.de/portfolio
- Podcasting: https://hansreinl.de/podcasting
- Index of links: https://hansreinl.de/llms.txt