Internet of Things Experts in Cologne

• Built a modular C++ 20 embedded Linux acquisition system on a Raspberry Pi, synchronizing IMU and dual-camera data streams to sub-millisecond accuracy.
• Integrated retro-reflective and contrast sensors to trigger acquisition and detect gaps between sorter rails.
• Implemented SPI & I2C sensor communication, GPIO interrupt handling with libgpiod, and CSV & JSON output.
• Designed a multi-threaded acquisition pipeline and an SPSC queue between acquisition and writer threads.
• Built a Python/HTML/CSS based web-server and validated the prototype in a DHL warehouse for defect detection.
• Documented software behavior, configuration, and results for maintainable handover and further development.

trategic Requirements Management: Steered user-centric product development for highly complex analytical platforms in close coordination with Product Owners.

Team Enablement: Provided technical supervision and UX alignment across multiple development teams to ensure consistent implementation.

Translation of Requirements: Translated complex business logic into intuitive, user-centric concepts and workflows along the entire customer journey.

End-to-End Design: Led ideation, conceptualization, and UI design for UX projects, accounting for cross-functional requirements.

Quality Assurance: Ensured strict adherence to and verification of usability standards and web accessibility (WCAG) within a B2B context.

Stakeholder Management: Confidently presented and defended design solutions to senior management and specialized departments.

Cross-functional Collaboration: Acted as the primary interface between Product, Engineering, and Business to resolve conflicting objectives within the design process.

• Led the end-to-end architecture and migration of a legacy on- premise IoT monitoring system to a cloud-native Azure platform within a 17-member development team
• Designed and implemented a scalable microservices architecture (Java 21, Spring Boot, Kubernetes, Azure Services), decoupling IoT data streams and eliminating legacy system bottlenecks
• Defined technology stack, mentored developers, and orchestrated cross-functional teams in 4 countries to ensure high-quality delivery and alignment with architectural standards
• Drove requirements engineering and system redesign, removing years of technical debt and introducing event-driven processing and automated workflows
• Key Achievements
• Increased system stability and uptime by ~10x, eliminating need for 24/7 DevOps intervention
• Reduced hosting costs by ~80% (5x savings) through cloud optimization
• Improved performance and scalability, enabling stable handling of high-volume IoT data streams
• Delivered successful zero-disruption migration from on-prem to cloud, with strong user satisfaction and reliability from day one

• Development of a mobile app to slow down the progression of dementia

• Coordination of software development (TPO – Technical Product Owner)

• agile requirements management (agile requirements engineering)

• prioritization of tasks in consultation with stakeholders

• stakeholder management

• documentation and management of the software architecture

• conducting PoC for technology decisions

• Documentation as Code

• docToolchain, arc42, req42, aim42, tpo42, C4 model, Archimate

• ADR, Architecture Decision Records

• Docker

• Pre-Commit, Conventional Commits, Semantic Versioning

• Liberating Structures, Agile Principles, Holacracy, Sociocracy 3.0

• Mobile frameworks

• AI developing interfaces, LLM

• Cordova, Unity

• Google Gemini, OpenAI, Character.AI

• Prompt development

• Worked on FPGA enhanced network encryption device with secure boot, TPM2.0 and smart card integration for BSI approved usage with Post Quantum Cryptography
• Developed and audited Linux drivers
• Collaborated using GitLab, Gerrit, Confluence and Jira
• Technologies: C, C++, Secure Boot

• UI design of the Penny mobile app and ongoing maintenance of the company-wide design system — carried out with a senior UI designer from the Artyspark team.
• Managing, briefing, and quality control of all design decisions; close coordination with Penny's internal product team in product management and development.
• Ensuring consistent UI standards across the app and design system; reviewing and approving components, tokens, and guidelines.

• Overall responsibility for platform transformation across ERP, CRM, PIM, and AI-driven process automation
• ERP transformation: Implementing and migrating to Microsoft Dynamics 365 Business Central
• CRM & growth stack: Implementing HubSpot as the central CRM and a platform for lead and marketing automation
• Product data & commerce enablement: Introducing an ePIM to scale category management and digital commerce processes
• AI-driven process automation: Designing and implementing agent-based AI workflows to automate processes in business services, accounting, tender management, and marketing
• Building a scalable platform organization including product development, DevOps, UX, cloud engineering, and corporate IT
• Implementing modern product and portfolio governance (e.g., OKRs, portfolio boards, value-based roadmaps) to manage technology-driven initiatives
• Harmonizing heterogeneous system landscapes and transforming them into a modular, scalable platform architecture (ERP, CRM, PIM, integrated customer journeys)
• Coaching and developing product owners, tech leads, delivery managers, and UX teams to build a scalable product organization

• Established and led QA processes for IoT-embedded systems utilizing Wi-Fi, Zigbee, and DALI protocols.
• Responsible for requirement validation, end-to-end manual testing, and defining test and release strategies to ensure seamless product delivery and stakeholder alignment.
• Collaborated closely with clients and internal stakeholders.
• Developed data-driven quality dashboards and reports, improving stakeholder visibility and enabling faster, more informed decision-making.
• Worked with an agile state of mind in a Scrum/Kanban team using Jira, Confluence, and TestRail.

• Built and successfully established a qualitative online market research software platform (Software-as-a-Service) as a boutique provider and grew it into a top 5 provider in the DACH region
• Product ownership and project management for the SaaS software platform in over 20 countries, and since 2017 for the mobile iOS and Android app
• Defined and implemented the product vision and roadmap, product and interface design, product backlog management and prioritization, including customer requirements and stakeholder input
• Advised corporate clients on structured user feedback and led user experience studies (in-home use tests, diary studies, user acceptance testing)
• Collaborated on digital product development projects in a corporate environment (apps & IoT applications) and facilitated workshops with D-level stakeholders in German and English
• Responsible for acquisition and account management of corporate clients in German-speaking countries and across Europe
• Built and led the Professional Services team both functionally and disciplinarily, with a focus on data protection and GDPR compliance

• PRISMA project
• Ansible automation
• Windows third level support for Windows NT, Windows 2000, Windows 2013, Windows 2016, Windows 2019

• Created as-is network documentation for a Bechtle customer
• Analyzed existing configurations and adjusted them
• Advised on Fortinet and Check Point products
• Troubleshot complex routing, switching and application issues
• Tools: MS Azure, FortiManager, Cisco Nexus & Catalyst, Cisco WLAN Controller, Citrix Netscaler SD-WAN, MS Visio, Checkpoint VSX, Wireshark

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