Developer in an 8-person developer-experience/enabling team within a division of around 100 engineers; led a recurring cross-team format for technical decision-making

• Cut build time from an unpredictable 1?2 hours to a reliable 15 minutes, moving the feedback cycle for around 100 engineers from once a day to several times an hour.
• Rebuilt the acceptance test suite from uninformative legacy tests into production-like tests covering all 13 country variants, so country-specific defects surface before rollout rather than in stores.
• Reduced the configuration system from roughly 40,000 settings per country to 7,000?10,000, cutting the error surface for country rollouts and maintenance.
• Established and led a recurring format for technical decisions spanning team boundaries.

• Built the platform from the ground up ? domain model, backend services and web front end.
• Enforced architectural rules automatically with ArchUnit so that layer separation held up as the team grew.
• Reproducible local development environment via Docker Compose ? new team members were productive on day one.

• Real-time routing of incoming emergency calls including location data to the responsible parties ? a safety-critical path with matching reliability requirements.
• Self-service configuration portal allowing customers to manage devices and escalation chains themselves, substantially reducing manual support effort.
• End-to-end ownership from MQTT device integration through to the React interface.

Software Developer, C++

• Worked on a test framework used by customers to safeguard their own applications ? the foundation for a later specialisation in test architecture and developer tooling.

Software Developer, Industrial Automation

• Built software for controlling and analysing industrial plant equipment ? early exposure to systems where software defects have immediate physical consequences.