System Architect in Germany

• Development and implementation of operational processes
• Preparation of complete documentation packages (including emergency management and operations management) to meet compliance requirements
• Introduction of workshops on IaC (Infrastructure as Code)
• Technical consulting for the project's security concept (ISMS)
• Installation and operation of Kubernetes clusters on AWS, on-prem and Azure
• Hybrid cloud architecture design (on-prem, Hetzner, AWS)
• Incident and system outage analysis and troubleshooting
• Network adjustments to 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

• 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 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

Overall architecture and technical implementation of a Wix-based subscription frontend with Stripe payments and connection to Axxessio's SaaS backend. Implemented Stripe Checkout, subscriptions, webhooks, and transaction logging end to end. Customer data and contract information transferred automatically via a JWT-protected REST API. Designed and documented proxy and security architecture for IP whitelisting, HMAC, and operations, and aligned it with the backend team.

Stack: Wix Studio, Wix Velo, JavaScript, Stripe, Webhooks, JWT, HMAC, REST API, Hetzner, Cloudflare

• 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.

• Redesign of a legacy Windows app for vehicle diagnostics as an AWS cloud application
• Creating build pipelines and conducting code reviews using Kotlin, Spring Boot, Micronaut, Jenkins, and GitHub

• Coordinating several Pega projects being part of CoE
• Participating in major architecture meetings
• Running LSA coordination meetings
• Providing guidance to the project teams
• Helping with technical issues resolution including performance problems
• Contributing to improving developers best practices and guidelines
• Providing expertise in ensuring high system availability
• Running PoCs
• Responsible for deployment pipelines implementation
• Individual targets rated over 100% every year

• Managed and developed the system architecture for the INEOS Grenadier model year 2028/29, ensuring interaction of all E/E system components according to GB/T 32960.
• Developed a product reference model for the entire E/E system of the vehicle.
• Coordinated requirements for Battery Management Systems (BMS) between OEM and suppliers at SYS.1 and SYS.2 levels for VW and Porsche.
• Created and aligned requirements for BMS fan control and OBD within Polarion.
• Developed a secure system architecture for steer-by-wire systems, including ECU hardware, software, and communication.
• Integrated various process design approaches from CARIAD, including SAFe (Scaled Agile Framework), FUSE/FAME, and RFLP, with ASPICE requirements.
• Created a process model in ESCAPE mapping essential components of SAFe onto ASPICE.
• Served as Lead Architect for electric drive development, focusing on parklock and cooling and lubrication functions for Mercedes AMG.
• Analyzed requirements in Integrity and developed functional models in UML using Enterprise Architect.
• Developed generic models for parklock and cooling functions, including sequence diagrams and a navigation model for the overall project.

• Developed Design System for HVV Switch app in Figma
• Based on wireframes from UX team
• Applied Atomic Design principle
• Created design tokens
• Conceived workflows for handing over designs to dev team
• Conception of new patterns and components to expand Design System
• Consideration of accessibility

• Lead Product Owner for 4 development teams
• Leading and coordinating a greenfield project with parallel implementation of core components by independent teams; managing dependencies and resources
• Establishing a data lakehouse approach, including analysis of data volumes and future requirements as part of a cloud migration (best-of-breed approach)
• Responsible for requirements analysis, selection, and piloting of a LIMS/ELN system, supported by advising decision-makers and managing external vendors
• Introducing and managing an OpenWeb UI and Azure OpenAI-based RAG system to support knowledge extraction and data-driven analyses
• Setting up, configuring, and managing Jira projects, as well as developing project-specific workflows and automations
• Implementing classic Scrum processes with all ceremonies and taking on the Scrum Master role for all involved teams
• Assisting in hiring through interviews and assessments from a product owner's perspective
• Making key architectural decisions, including selecting the platform for the data lakehouse (Databricks) and the strategic integration of LIMS and analytics platforms

• Integrating system architecture, business analysis, requirements engineering, and process consulting
• Managing business unit needs toward IT and implementation
• Capturing requirements in JIRA and breaking them down into epics
• Overseeing internal projects and programs, including stakeholder management and reporting
• Handling requirements from traditional IT developments to IoT integrations and SAP subsystem replacements
• Implementing current legal regulations (MAKO, EnWG, EEG, GWG, StromGVV, GasGVV, StromNEV, GasNEV)
• Applying agile methods (Agile, SAFe, ITIL, Scrum, Kanban, DDD, IaC, CI/CD, DevOps, automation, ETL, OOA, OOD, MDA, BPMN, BPM, UML, marketing automation, data science, ML, AI, GenAI, LLMs)
• Using tools like JIRA, SharePoint, MS Office, MS Project, MS Dyn CRM, VMware ESX/ESXi, BSI IT-Grundschutz, BSI C5, NIST, MS Azure, Typo3, mail automation, Docker, Kubernetes, OpenStack, OpenShift, Terraform, Ansible, SQL, REST, SOAP, Git, GitLab, LoRaWAN, SAP IS-U, S/4HANA, USU, KUGU, AbSys, sensors, MQTT

• DORA consulting and system optimization
• Process analysis of existing business and technically complex processes
• Analysis of individual processes in relevant areas: trading, back office, settlement, custodian bank
• Acting as interface between business areas and IT to understand and define requirements
• Creating a functional specification including adjustments and implementation of software applications and their interfaces to systems
• Preparing a decision paper for the executive board to approve the project
• Setting up and conducting project meetings with relevant stakeholders and documenting them
• Close collaboration with stakeholders
• Coordinating and steering the analysis
• Planning and allocating resources and budget
• Onboarding large banks (Asia and Eastern Europe) for Depot B
• Migrating Depot B holdings (volume around EUR 70-100 million)

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