Senior/Staff Backend Engineer at Heycar (Mobility Trader GmbH)

Led multi-tenant backend initiatives: built a unified ingestion platform with YAML-based configuration to onboard new dealer data pipelines without code changes, cutting onboarding time from around 2 months to 2–3 days and boosting scalability by ~40%. Served as Keycloak expert, scaling multi-tenant identity management with custom plugins and delegated admin APIs. Built back-office tooling integrated with Salesforce for real-time dealer inventory management, lead conversion, and support. Drove a multi-tenant migration to a unified cluster for high availability. Optimized frontend CI with CircleCI and NX, delivering only affected UI projects to drastically reduce build times. Strengthened observability and release reliability while mentoring engineers and elevating code-review standards.

Technical Lead Java Developer at Accenture

Led architecture modernization of MyPMO, migrating to a scalable microservice model; directed cross-functional teams across Latvia, India, and the UK. Introduced Kafka-based event streaming and RxJava3 to improve throughput and resilience; automated complex workflows with Activiti 7; optimized workflows reducing delivery times. Implemented fault-tolerance and monitoring, cutting intermittent production issues by over 70%. Mentored engineers and promoted modern frameworks and knowledge sharing.

Senior Java Software Developer at Vodafone Shared Services

Owned backend modules for subscriptions, usage, and product catalogs across Vodafone markets. Introduced RxJava2 for parallel API orchestration and fault-tolerant middleware calls, improving response times and reliability. Drove cloud enablement by migrating legacy services to PKS Cloud Foundry and Skytap. Implemented auto-scaling and fault-recovery for high-load middleware and API gateways. Streamlined CI/CD with Jenkins, GoCD, and Ansible.