Go Experts in Stuttgart

Started as a Business Transformation Consultant for IT and process analysis, and from 09/2025 additionally took on the role of Interim CIO with overall responsibility for IT.

• Reduced IT operating costs by 28 %.
• IT and process analysis, target vision and roadmap; governance with SLA, RPO/RTO, RACI and TOMs.
• Led the introduction of Microsoft Dynamics 365: migration, integration and connection of existing systems.
• Established reporting with Power BI; prepared decision documents and 30/60/90-day quick wins for the executive management.

• Focus: System architecture, cloud-native platforms, microservices, API design
• Product: Pflege-Pfad is a digital placement platform that directly connects relatives of people in need of care with verified care services and caregivers – without an agency and without ongoing fees.
• Business analysis & process design:
• Analysis of the German care market and identification of the key pain points of both target groups.
• Modeling of core business processes: registration, verification, care request, application, placement, and rating.
• Definition of the business model as a freemium/premium model with optional contact unlocking.
• Creation of user stories and requirements documentation for relatives, care services, and administrators.
• Design of trust and quality assurance mechanisms with document upload, admin review process, and rating system.
• Coordination with stakeholders and validation of product decisions with potential users.
• Technical implementation:
• Design and implementation of the entire platform architecture as the sole developer.
• Design and implementation of a REST API with Spring Boot and Kotlin, including JWT-based authentication.
• Development of the frontend as a single-page application with Angular 17.
• Implementation of the AWS infrastructure with EC2, RDS PostgreSQL, S3, CloudFront, and IAM.
• Document upload with AWS S3 using presigned URLs to verify care services.
• Email notifications via Resend API.
• AI-supported care service search via OpenAI API.
• Implementation of complete user flows such as registration, login, password reset, and the placement process.
• Development of an admin panel for user and care service management as well as analytics.
• CI/CD with GitHub Actions and containerized deployments with Docker.
• End-to-end tests with Playwright.

Technologies: Kotlin, Spring Boot 3, Spring Security, JWT, JPA/Hibernate, PostgreSQL, Angular 17, TypeScript, RxJS, AWS (EC2, ECS, S3, CloudFront CDN, RDS PostgreSQL, IAM), nginx, GitHub Actions, Playwright, Maven, Git, OpenAI API, Resend API, Docker, Scrum, i18n (DE/EN/TR), Kiro, feature flag architecture.

• Consulting, design, analysis, software architecture and development
• Design, development and implementation of a Pimcore environment and connection of several external API systems in a Kubernetes environment, as well as various PIM and ERP systems
• Technologies: Unix environment, design, Symfony development, design, PHP 8+, software architecture, MySQL/SQL, Shell Script, Git Dev Ops tasks, AI coding assistance, Pimcore 12, Shopware 6
• Team size: >10 people

• E-Tech, manufacturer of customised solutions in the automation control sector, +60 employees
• Reporting line: Directly to the Managing Director/owner
• Development of vision, values and mission statement
• Establishment of communication structures
• Establishment of HRM – search, selection and hiring of the HR Manager
• Development of the sales strategy
• Development of the product strategy
• Analysis and improvement of production processes
• Holistic organisational development — HRBP ad interim
• Teambuilding for the management team
• Vision, values and mission statement development - cultural change
• Identification of requirements, creation of job requirements, employer branding
• Selection, conducting interviews and hiring of the new HR Manager

Freelance electrical construction and project management, planning coordination, quality assurance and commissioning on major construction sites, for electrical contractors and on the client side; since 07/2025 also preparing expert reports as a DEKRA-certified expert. Selection, most recent first:

• 03/2026–08/2026: Task force management and management of the technical on-site team, construction of a semiconductor factory. Development and schedule control of solutions, reporting to the end customer, and management of cross-disciplinary coordination on defects and interfaces.
• since 07/2025: Expert work in cooperation with an expert office. Expert reports on damage to electrical and photovoltaic systems for insurers, companies and private customers; coordination with insurers and clients.
• 08/2025–02/2026: Electrical planning coordination, major medical/research construction project. Catching up on the electrical planning backlog, coordinating internal and external planners, managing planning delivery lists and priorities, and reporting to department and project management.
• 06/2025–08/2025: Consulting and construction management for an electrical company, construction of a care facility. Catching up on construction delays, resolving defects and preparing the facility for handover; coordination with experts regarding the existing installation.
• 03/2025–05/2025: Quality assurance and commissioning for the client, inner-city shopping and mixed-use development. Documentation and follow-up of outstanding defects; short-term operational support after opening.
• 08/2024–02/2025: Project and construction management for the client, new airport terminal. Clarification of interfaces with the finishing trades, schedule control, on-site decisions regarding cable routes, execution and design; working through planning backlogs with the planning participants.
• 09/2023–08/2024: Construction management/site supervision, revitalisation of a former corporate headquarters. Site supervision on a technically demanding strip-out and new-build project; clarification of interfaces, schedule tracking and resolving unplanned issues directly on the construction site.
• End of 2018–2024: Electrical construction management for an electrical contractor in the Stuttgart region. Office, administrative and production buildings, industrial halls with administrative buildings, residential and mixed-use developments, as well as a depot. Clarification of interfaces with other trades, coordination with experts and planning offices, schedule monitoring and management of subcontractors (up to six foremen with teams of up to ten people).
• 2018: Construction management, revitalisation of a former corporate headquarters. Took over the construction site during the final phase after the construction manager became unavailable; followed up on outstanding planning topics, coordinated specifications and building automation, incorporated planning changes into the execution and supervised subsequent installations.
• 2017–2018: Construction management, industrial new-build (Greenfield). Took over and completed an ongoing construction site; instructed subcontractors and coordinated with the general contractor.

• Designed a migration strategy for WLS applications to BKA Cloud and Stack IT

• Created a hybrid cloud for internal testing and development with Kubernetes

• Transformed the IT landscape from an outdated monolithic architecture to a cloud-based architecture

• Integrated new CI/CD processes using Azure Pipelines

• Quadrupled the processing throughput for personnel security checks

• Migrated personnel security screening applications to Docker-based applications

• Implemented CI/deployment pipelines using Azure DevOps

• Environment: Java Springboot, Kubernetes, Oracle Weblogic, OpenID, Camunda, JUnit, TOGAF

• Task Engineering: Evaluating Coding Agents.
• Asset Creation: Building realistic task environments using datasets and files in German. Crucially, these assets must remain in the target language to genuinely measure multilingual handling.
• Prompting & Translation: finding failure points where AI does not work, in German.
• Implementation & Verification: Supporting the development of robust solutions (reference implementations) and write highly reliable, deterministic verifier scripts (using rubric-based judging only when strictly necessary).
• Calibration & Execution: Analyze execution logs and calibrate task difficulty (Easy to Very Hard) using standard Terminal-Bench run configurations against various model tiers (Haiku, Opus).
• Quality Assurance: Participation in a rigorous, 4-layer human quality control process (creation, human review, calibration review, and audit) alongside automated LLM-based checks to ensure fairness, grammatical accuracy, and benchmark integrity.
• Linguistic Review: Reviewing AI benchmark tasks across Hindi, Arabic, Japanese, Chinese, Czech and Turkish.

• Managing the operational back office
• Handling quotations and invoicing
• Supporting preparatory bookkeeping
• Coordinating appointments and operational discussions
• Coordinating between management, clients and external partners
• Organizing administrative day-to-day processes

Taking on operational back-office tasks significantly reduces the workload of executive management. Administrative processes run in a more structured, reliable and efficient way, freeing up more time for clients, projects and business decisions.

Conversion & UX Optimization of a Sales Platform

• Identified the biggest issues across the entire purchase process through a comprehensive UX audit.
• Increased conversion from 0.2% to 25% by developing an end-to-end purchase process, supported by a new information architecture and clearer messaging.
• Accelerated implementation with screen annotations that prevent misunderstandings between design and development.
• Reduced the purchase process drop-off rate from 85% to 15%.

Tools: Figma, MS-Clarity, interaction principles, heuristics

Methodology: Agile project management

Goal: Digitization and implementation of CCD2 requirements within the Consumer Finance systems.

Analysis, identification, and assessment of business requirements, as well as their transfer into technical implementation requirements. Coordination and status reporting of the various requirements. Documentation and process management using UML and BMPN. Cross-functional stakeholder management, UAT testing, data management, API architecture management.

Tools: Jira, Confluence, Visual Code, Sql Developer, Enterprise Architect, MsOffice, Bruno, ALM, Camunda, Figma

Technical writer at a special-purpose machine manufacturer, implementing the requirements of the EU Machinery Regulation in the technical documentation and moderating FMEAs. Role: Technical Writer and FMEA Moderator

• 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

• Capture and analyze stakeholder needs to define clear requirements and make sure the new website meets user expectations.
• Took on the role of Product Owner to lead the development team, set priorities, and monitor implementation progress.
• Coordinated the implementation of Optimizely as the new CMS, including adapting and integrating all required features to ensure a smooth user flow.
• Ensured the successful integration of features within the Condor lifecycle, such as flight booking, check-in, and other relevant services, to create a complete user experience.
• Actively communicated with stakeholders to gather feedback and make adjustments during the development process, continuously improving the user experience.
• Planned and carried out tests to ensure the quality of the implemented features and that all requirements were met.
• Methods used: Agile methods, SCRUM, SAFe
• Tools used: Optimizely, Jira, Confluence
• Result: Significant improvement in user experience, optimized booking and check-in processes, and a stronger digital presence for Condor in the market.

• Investigation PoC and exchange and refinement of an existing cloud and IoT power plant control solution for certificate management of renewable energy power plants (solar, wind, biomass and others) of the largest European renewable energy power plant operator in this field, including investigation of the IoT devices used in the field and their integration and network connection with the aim of automated PKI key management.
• Messaging with Kubernetes for large API-connected enterprise applications
• Risk and Attack Vector Analysis, Software Quality & Bug Assessments
• Agile Workload Scheduling via Jira & ConJluence
• Evaluation of message streams Pub/Sub for MQ and KaJka.
• Various tests with “best design approaches” regarding resilience patterns such as Circuit Breaker Designs, Throughput Measurement and Monitoring, Bulkhead Governors - for robust EA design
• Integration of API Management with IBMs API Connect to Kubernetes - for agnostic Microservices API Management Designs. Google Apigee
• Solution Health Check Approaches for Load Burst Situations + Remedy
• Research and investigation of available potential subcontractors in the coordinating role as Solution Manager. CIS20 Controls.
• Dread and Stride Security Assessments.