System Architect in Germany

• Analyze the root causes of complex functional, technical, and data-related errors in PowerCloud across process, booking, and system boundaries.
• Identify automation and straight-through processing opportunities at the interface between business teams, IT, and external service providers.

• Lead functional safety strategy and ISO 26262 compliance across the full lifecycle for a high-voltage electronic switching device that safely connects/disconnects the HV battery in EVs, enabling fast fault isolation and high-current interruption.
• Own the Functional Safety Management Plan (FSMP) and Development Interface Agreement (DIA), acting as the primary safety governance authority across program stakeholders.
• Architect system safety concepts — developing FSC, TSC, and system safety architecture — and define the safety manual with complete user instructions.
• Direct verification and confirmation reviews per ISO 26262 independence requirements.
• Lead safety analysis activities (FTA, FMEA, FMEDA, DFA) and chair vehicle/system integration reviews across cross-functional engineering teams.
• Define methods, templates, and processes that establish best-in-class FuSa practices organization-wide.
• Conduct SEooC assessments and audits, representing the safety organization to internal leadership and external stakeholders.

• Responsible for the entire software architecture of the parental allowance portal
• iOS and Android app with React Native and Expo, incl. push and OTA updates
• Store releases via App Store Connect and Google Play Console
• TypeScript monorepo for app, website and backend, web with Next.js and Tailwind
• Own promo, voucher and discount engine with contact and segment logic
• Payments via RevenueCat and in-app purchases, authentication with BetterAuth
• REST APIs based on OpenAPI, PostgreSQL with Prisma and Drizzle
• Self-hosting on Hetzner with Docker, Coolify, Terraform and GitHub Actions
• Tests with Vitest, Playwright and visual regression via Chromatic
• Observability via Grafana Cloud and error tracking with Sentry
• Performance marketing via Meta Ads, measured with custom event tracking
• Grew the product to 20,000 app users with a purchase rate of almost 12 %
• Managing Director since 04.2025, responsible for product and technology

• Expert-supervised AI systems for scientific reasoning, model evaluation, and research workflows.
• Built the IAS Problem Solver, an orchestrated system for difficult mathematical reasoning; it achieved 84% in one submitted answer set on the Leipzig mathematics benchmark.
• Built a resumable state-machine pipeline for research-grade mathematics benchmark generation: source selection, LLM-agent-based phenomenon discovery, task synthesis, gold-answer and certificate generation and validation, probing, repair, human feedback, and quality gates, targeting tasks that are difficult, natural, verifiable, and cost-effective.
• Current work extends this into budget-aware AI research workflows for real scientific problems with expert review.

Tech stack: Python, OpenAI/OpenRouter-compatible APIs, embeddings, RAG, SQLite.

Sole owner of the design system for an enterprise corporate-decarbonisation platform; the role was created on joining. I own design intent, tokens, component contracts, documentation and governance — engineering owns implementation.

• Established design system practice where none existed: token architecture, component specifications, audits, documentation and governance, in an organisation that had shipped for years without a design team.
• Rebuilt the design-side source of truth — replaced an undocumented, individually modified purchased kit with a clean component library and rebranded theme, and mirrored code components into design so both layers finally describe the same product.
• Consolidated overlapping legacy components into single contract-driven components, replacing configuration sprawl with intent expressed at the type level.
• Audited the system quantitatively — token counts, adoption ratios, override density, local-component proliferation — converting "the system isn't working" into figures engineering could not dispute.
• Authored the proposal to migrate off Material UI onto owned, standards-based foundations: headless primitives, plain CSS with custom properties, W3C-format design tokens and a documented component library — scoped as a staged pilot on the highest-friction component to prove the model without functional risk.
• Built and presented the case to executive stakeholders, including direct answers to the objections raised by the specialists most invested in the existing stack.

• Self-employed since 2008 in planning, developing, and supporting custom software, web, and system solutions for clients as well as my own projects.

• Complete technical implementation of projects — from requirements analysis and architecture to programming, release, maintenance, and further development.

• Development of database-driven web applications, customer portals, admin interfaces, ordering processes, user and permission management, and custom backend functions.

• Design and development of REST APIs, webhooks, microservices, and interfaces to reliably connect different applications and external services.

• Implementation of numerous smaller services and automations for data processing, monitoring, notifications, recurring tasks, and technical business processes.

• Development of Telegram bots with the Telegram Bot API, including automated notifications, user interactions, status queries, and control of technical workflows.

• Programming native Android applications in Java as well as developing my own games and interactive applications with Unity.

• Development, extension, and modernization of existing PHP, Java, JavaScript, and MySQL applications, including error analysis, performance optimization, and adaptation of grown codebases.

• Setup and support of Linux-based server environments with Apache and Nginx, as well as management of databases, domains, DNS, SSL certificates, email services, access rights, and backups.

• Development of browser-based automations with Selenium for data collection, checking, and processing of recurring workflows, reducing manual steps and making processes more reliable.

• Independent implementation of complete platforms and web projects, including devpraxis.de, hq-smm.com, and socialboost24.com.

• Many years of technical project support with responsibility for troubleshooting, maintenance, further development, documentation, and stable operation of production systems.

• Quick onboarding into existing applications and unfamiliar codebases to analyze technical problems in a structured way and implement practical, long-term maintainable solutions.

• Direct coordination with clients, clear explanation of technical topics, and independent implementation of agreed requirements.

• By combining software development, automation, and system administration, many tasks can be handled completely from a single source, which reduces coordination effort, technical dependencies, and processing time.

• Development of a SaaS application for automated claims handling with AI agents (LLM) as the primary development team
• Design & testing of efficient and secure context management setups in the development process (including multi-sub-agent use, memory systems, caching)
• Definition and implementation of LLMOps pipelines with Azure AI Foundry for AI agents in customer contact (including versioning, logging, audit trail, security tests)
• Infrastructure provisioning via IaC (Bicep), application configuration via GitOps-based CI/CD pipelines (rules engine, workflow engine)
• Development of integrated security architecture designs between AI-based & classic applications with a special focus on regulatory requirements
• Integration of workflow and rules engine in a NestJS service architecture — for automated, rule-based control of claims processes
• Probabilistic extraction and preparation of claims data as the basis for rule-based, deterministic decision logic — traceable, auditable, and regulatorily compliant

• System and software architecture for the QIA-symphony Connect DNA-extraction robot in Life Science / IVD automation.
• Designed features and control logic for extraction, pipetting, lysis and eluate modules using C++, PLC/ST (Beckhoff IPC / TwinCAT 3) and model-based concepts.
• Delivered ISO 13485-oriented requirements, architecture, unit/integration/regression tests and DHF/VEP/VER/TCL documentation.
• Used Polarion, Jira, Confluence, Azure and AI-assisted documentation to improve traceability and engineering efficiency.

• Development and introduction of operations processes
• Preparation of complete documentation packages (including incident management and operations support) to meet compliance requirements
• Introduction of a workshop on IaC (Infrastructure as Code)
• Technical consulting for the project security concept (ISMS)
• Installation and operation of Kubernetes clusters on AWS, on-prem, and Azure
• Hybrid cloud architecture design (on-prem, Hetzner, AWS)
• Analysis and troubleshooting of incidents and system outages
• Network adjustments for firewall rules, gateways, OpenVPN settings, and IPsec tunnels (pfSense)
• Technical consulting on Bitbucket, Jenkins, and GitLab CI/CD pipelines
• Consulting on Ansible deployments and infrastructure automation
• Consulting on building a scalable system in the cloud (AWS / Azure)
• Technologies / Tools: Ansible, Terraform, AWS, Azure, VPN, pfSense, Jenkins, Bitbucket, Kubernetes, GitLab Runner, ISMS, Golang, Prometheus, Grafana, S3, Lambda, RDS, ECS, Cognito, OIDC, Harbor, MinIO, Postgres, Redis, Keycloak, Ceph, Proxmox, CloudFormation, PostgreSQL, Flux CD, Hetzner, IONOS, Sonatype Nexus Repository, Entra ID, Dex IdP, Pulumi

• Automated decentralized manual planning of power grid construction projects using a cloud-native GIS platform integrating geodata analysis, infrastructure planning, and cost estimation
• Designed a cloud-native multi-language architecture with Azure Cloud Functions
• Integrated ArcGIS/Vertigis and developed JavaScript-based Vertigis workflows for interactive GIS planning tools
• Developed Python-based cloud functions to automate analysis of complex geodata sets
• Implemented specialized algorithms for power grid topologies and construction planning with Shapely and GeoPandas
• Built interfaces between GIS platforms and existing planning systems with uniform API conventions, consistent response structures, and error handling
• Set up a Pytest unit test pipeline and automated CI/CD processes using Azure Pipelines
• Optimized performance of geospatial calculation algorithms for large datasets

• Sponsor of two spin-off products based on the AI and BPM tool BPMaaS, called “kionera” and “myATHENA”
• Defined project goals and developed product strategy
• Designed and built the kionera platform on shared or dedicated GPU servers using Docker and open-source LLMs
• Provided the API for custom applications
• Developed and designed managed services based on the BOC Group’s ADONIS BPM system
• Supported feature definition and planning of ADONIS/BPMN training
• Created a WordPress website with a subscription payment gateway

• Development, operation, and sales of the HelpSpace helpdesk software

• Delivered MVP-focused full-stack architecture for a health-sector client: Vite/React frontend, backend services on Google Cloud Run, and Supabase for database plus IAM/authentication.
• Supported product requirements engineering and prioritized cost-aware workload placement, implementing browser-side/edge computation where feasible before moving logic to backend services.