Spring Boot Experts in Switzerland

• Highest level achieved: Certified Mid-Level Angular Developer
• 13 technologies newly learned or refreshed with (re-)certifications
• Current: Docker, Azure, Quarkus

Technologies: Confluence, PlantUML, BPMN

• As part of the modernization of ING DiBa, the master data management system is also being renewed. As the Domain Architect for this topic, I had to find a way to combine global solution approaches from the headquarters in Amsterdam with local requirements from the German branch in Frankfurt.

• Implementation and maintenance of highly critical IAM solutions for B2B clients (SSO, MFA, SAML/OIDC, Entra ID, PIM/PAM)
• Security administration of Linux systems (CentOS, Red Hat) in Docker and Kubernetes environments
• Migration from Docker Swarm to Kubernetes
• Infrastructure automation with Terraform
• Planning and execution of risk assessments, threat modeling, and compliance reports
• Development and management of B2B applications (Java, REST/SOAP, Angular) and CI/CD pipelines (Python, Ansible, Jenkins, GitLab)
• Leading integration tests and UAT (Cucumber, Selenium, Katalon)
• Implementing monitoring and observability strategies with Grafana, Prometheus, and Splunk
• Integrating SAST tools like Snyk and SonarQube
• Release management and project coordination according to Scrum and SAFe
• Mentoring and technical support of junior team members

• Developed a large web application for second-pillar retirement insurance (Swiss BVG, Kollektivleben) with over 1000 web pages, using an in-house modeling language and Angular for the front end and back end
• Fixed bugs in the code generator and enhanced and re-engineered the application
• Built an automated testbed
• Implemented PDF document generation with XML and Thunderhead
• Resolved issues caused by the switch to Java 21
• Replaced middleware server for insurance base data (customers, contracts) using Java/Spring, REST, OpenAPI, Docker, Kubernetes, OpenShift, Azure CI/CD pipeline, Jenkins, and GitHub

• Build prototypes, expand AI skills, and practical application in a startup context.
• Transition phase: further training in prompt engineering, APIs, AI, working on independent prototype projects, and collaborating at a friend's startup.
• Technologies: LangChain, REST, Python, Java, JS, TS, Node.

• Business analysis, architecture, and implementation of a telemedicine platform for pet owners.
• Leading the development team as Product Owner and Tech Lead.
• Introducing agile processes, setting up development guidelines and system documentation.
• Planning and implementing features like video calls, live chat, and marketing automation.
• Implementing AI-based features such as automated tagging of information (missing pet reports, marketplace entries, etc.), preparation of social media content, and processing of conversation transcripts.
• Skills: Angular, NGXS, Tailwind, Java, Spring Boot, Kubernetes, Docker, CI/CD, MySQL, LLMs, RAG, MCP, Redis, OpenSearch.
• Industry: Veterinary medicine.

• Designed and executed automated and manual test cases for REST APIs and UI workflows using Selenide, Selenium, and Postman.
• Developed and maintained Gatling-based performance tests for simulating user load and validating system responsiveness and stability under stress.
• Integrated test suites into CI/CD pipelines with Jenkins, enabling rapid and reliable delivery cycles.
• Employed Splunk, Grafana, and Prometheus to monitor logs, track metrics, and perform in-depth application performance monitoring (APM).
• Utilized Swagger for validating and documenting API contracts and ensuring consistency across environments.
• Created and managed isolated test environments using Docker, enabling reproducible and consistent test execution.
• Collaborated with cross-functional teams using Confluence, Jira, and Bitbucket for agile planning, documentation, and version control.
• Worked in a Java/Spring Boot tech stack, leveraging Maven for project build automation and IntelliJ IDEA for development and debugging.

Key Achievements:

• Built a reusable Selenide-based UI automation framework that reduced test creation time by over 50%.
• Automated end-to-end test scenarios for critical business workflows, increasing test coverage and release confidence.
• Designed a modular Gatling load testing framework, used for continuous performance benchmarking.
• Detected and resolved several critical production performance issues through proactive APM and stress testing.

• Analyzed migration strategies after Camunda 7 was declared end of life with extended support until 2030.
• Evaluated potential migrations to Camunda 8, Flowable, and Operaton.
• Conducted a proof of concept demonstrating that existing projects could be migrated to both Flowable and Operaton.
• BPMN
• DMN
• Confluence
• Flowable
• Operaton

• Took on and completed private/organizational projects.
• Continued self-training, e.g., in cloud and reactive architectures.
• Focused deepening of knowledge in areas like Kafka and modern Java 17 enterprise architectures.

• Contribute to a cross-functional team building a cloud-based bookkeeping platform for SMEs
• Design and implement Java Spring Boot microservices with clear separation of concerns
• Integrate core services via REST and gRPC APIs
• Implement event-driven workflows using RabbitMQ for reliable, decoupled messaging
• Model and manage transactional data in PostgreSQL and leverage Redis for caching