Matthias Vongerichten - Senior Full-Stack & AI Engineer

About Me

For almost a decade I took care of sales software at Mercedes-Benz, then spent nearly four years integrating data at ARMEDANGELS 👼. Since November 2024 I have been working as a freelancer.

Today my work is mostly about AI agents 🤖 and automation. I run my own fleet of specialist agents on EU-hosted models 🇪🇺 (EU-Sovereign) – and I am currently building an emissions accounting web app for Zukunftswerk eG, end to end.

With new projects, I always look at their sustainability impact.

Looking for support? Write to me

"We must all suffer one of two things: the pain of discipline or the pain of regret or disappointment."

– Jim Rohn

Services

I build automations that hold up in production: secured, monitored and documented – self-hosted or in the cloud. And the AI agents that build on them.

Workflow & Integration Automation

API & Legacy System Integration (in a client project) FastAPIOpenAPIn8n [1][2][3]
Automation Platform (in production, self-run) n8nAirflowmake [2][4]
Discovery & Process Scan (in production, self-run) Langfusediagrams.netNotion [1][3]
Autonomous Ops & Maintenance (being tested) AnsibleNotionOpenClaw [4]

AI Agent Systems

LLM & RAG Integration (in a client project) pgvectorPostgreSQLMCP [1]
Agent Fleets & Orchestration (in production, self-run) Claude CodeMCPMatrixOpenClawNetBird [4]
Agent Security, Guardrails & Evaluation (in production, self-run) DockerOpenClawNetBirdProton PassLangfuse [4]
EU-Sovereign AI (no US Risk) (in production, self-run) CoolifyTensorXGreenPTHetznerorq.aiScaleway [1][4]
Agent Memory & Context Engineering (in production, self-run) HindsightpgvectorNotion [4]

Software & Data Engineering

Frontend Development (in a client project) Next.jsReactTypeScript [1][3]
Backend Development (in a client project) PythonFastAPIPostgreSQLSQLAlchemyMicroservices [1][3]
Spec-Driven Development (in a client project) OpenSpec [1][4]
Test Automation & E2E (in a client project) PlaywrightpytestGitHub Actions [1][2][3]

Infrastructure & Operations

Infrastructure Automation & Self-Hosting (in a client project) AnsibleCoolifyTraefikPrometheusGrafanaTailscaleGitHub ActionsDocker [1][4]

Legend

in a client project in production, self-run being tested Tools in use Tools being tested [1] point to Experience and Projects. [?] free PoC possible

Experience

Nov 2024 –
Present
Zukunftswerk eG [1]

Full-stack Software Engineer

Slow is smooth, smooth is fast.
- Built an emissions accounting application end to end
- Web application and UI
- Backend services and APIs
- Data model and processing pipelines
- Embedding-based matching of activity data to emission factors
- Containerised deployment across development, staging and production
- Spec-driven development with OpenSpec, backed by E2E tests
Next.js TypeScript FastAPI Python PostgreSQL Docker OpenSpec Playwright Dagster
Feb 2022 –
Nov 2025
ARMEDANGELS [2]

Data Engineer

Part of the solution, not part of the problem.
- Introduced unit tests into the Airflow environment
- Refactored Airflow DAGs and Operators
- Created and maintained a system landscape
- Built BI reports and dashboards
- Maintained and extended the data model/data warehouse
- Integrated several partner services
Airflow Python UML Looker dbt Snowflake
May 2017 –
Sep 2021
Mercedes-Benz [3]

Software Engineer & Technical Product Owner

Document to a reasonable extent.
- Technical Product Owner of the MB Vans Configurator
- Technical Product Owner Proxy of a vehicle configuration and offer creation application, critical to MB Vans Sales
- Oversaw the modernization of the MB Vans Configurator tech stack, directing the developers who built it:
  - Migration from Oracle to PostgreSQL DB
  - Migration from a legacy application for data manipulation to a low-code platform
  - Automation of data processing and software deployments
  - Migration to a container orchestration platform
- Managed the technical side of adapting and operating a modified version of the MB Vans Configurator API for an internal customer (Git)
- Planned and executed the rollout of software versions in various countries (Jira, Confluence, GitHub)
- Developed the scenarios for modernizing legacy applications (micro frontends, microservices)
- Drove the introduction of E2E monitoring for the production environment (Protractor)
- Designed an interface for an internal financing service (OpenAPI)
Java TypeScript Spring Boot PostgreSQL Kubernetes Jenkins Retool
...

Personal Projects

Von Court Agents [4]

Fleet of specialist AI agents, EU-Sovereign

Automate what can be automated — and de-automate what you love doing.

Specialist agents for infrastructure maintenance, bug fixing, email, UI work, coordination. Their own memory, their own credentials, their own identity. The most efficient model (emissions/quality) per task.

Python MCP Docker Matrix Notion OpenClaw netbird

Education & Training

Master of Computer Science (on hold): IU International University of Applied Sciences, Germany; part-time; approx. 40% completed
Jan 2021 – Feb 2025
Do less, then obsess.
Bachelor of Science – Business Informatics: AKAD University Stuttgart, Germany; part-time; grade 2.1
2012 – 2016
If it’s not in the calendar, it doesn’t get done.
Data Analyst Nanodegree: Udacity
Jul 2018
Signal vs. noise.
Professional Scrum Master I: Scrum.org
Nov 2017
If information were enough, we’d all have a six-pack.

Contact

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