Java Experts in Hanover

• Developed model-based software for hydrogen tank control units using MATLAB/Simulink, aligned with ISO 26262 functional safety requirements
• Performed system integration and software verification across MIL and HIL environments using dSPACE and Vector tools
• Defined software architecture (SADS) with interface specifications for CAN, analog, and digital communication protocols
• Generated production-ready embedded C code using Simulink Embedded Coder; created and maintained A2L calibration files with CANape
• Designed and executed MIL/HIL test cases ensuring full coverage of functional and safety requirements
• Implemented CODESYS PLC applications on IFM ecomatController; applied CAN and Modbus TCP/IP communication protocols
• Contributed to HMI/UI development using Qt/C++ on Linux (Qt Creator)
• Applied agile Kanban workflow with Git-based version control (Bitbucket)

Tools: MATLAB, Simulink, CANape, CANalyzer, PCAN-View, Embedded Coder, CODESYS, TTC2038/PXROS, Codebeamer, Jira, Git

• Independently responsible for the design and cross-market rollout of a safety-relevant digitalization project for the centralized and transparent provision of vehicle and service data
• Developed an integration concept for existing IT and workshop sys...

• Took ownership of the full development lifecycle for various features, from design through coding, debugging, and production deployment, ensuring compliance with banking-grade reliability standards.
• Optimized SQL queries, reducing data-processing time by up to 50%, especially for large datasets handled.
• Developed and maintained automated tests using JUnit and Mockito.
• Utilized GitHub Copilot as an AI-assisted development tool to accelerate code generation, improve code quality, and increase development efficiency within the team.
• Resolved 90% of assigned production issues independently, often under tight deadlines, contributing to uninterrupted system availability.

• Billing software for the second-highest security authority of the Federal Republic of Germany
• Passed security clearance level 2
• Frontend and backend development
• Consulting on the introduction, design, implementation, and development of technical components
• Code reviews, component testing, module testing, group module testing
• Implementation of UI/UX design
• Used technologies: HTML, CSS/SCSS, JavaScript, Node.js, Vue 3, PrimeVue, Webpack, Vuex, Momentum, Jest, NPM, Lodash, Java 17, Spring Boot, Lombok, GraphQL, JUnit, Maven, Keycloak, Python, Docker, CI/CD, Kubernetes, Oracle SQL, Postman, Storybook, Microservices, Monorepo, Jira, Confluence, Scrum, GitLab, AWS, IntelliJ, Visual Studio Code, Neovim, XLSX, responsive Webdesign, BITV 2.0 (U.S. Section 508) / WCAG 2.2

• Implementation and mapping of regulatory requirements (CSRD, ESRS) in Shiny dashboards and backend functions
• Design and development of data-driven modules in Shiny incl. ESG metrics and reporting templates
• Integration of data sources (SQL, SAP HANA, APIs, CSV/Excel) via DBI, odbc, httr and readr
• Creation of interactive visualizations with plotly, highcharter and DT (DataTables)

• Helped 10+ SMEs to take their first steps in AI
• Held over 30 workshops on AI strategy and AI training
• Conducted audits through the identification and evaluation of AI uses
• Developed dedicated AI strategies and roadmaps for transformation
• Implemented AI workflows, AI agents and dedicated AI solutions
• Developed AI product roadmaps
• Delivered interactive trainings on prompting, EU AI Act, benefits and challenges of AI

In this project, I support the software development of various modules of the supply chain management solution. My responsibilities include the technical implementation and optimization of collaborative SCM processes that help companies make their supply chains more efficient, transparent, and resilient. This modular software platform facilitates communication and Collaboration with suppliers is standardized and digitized, enabling seamless traceability of quality data and supplier evaluations. Technically, I focus on development with Go/Golang for scalable backend services and on the use of Kafka for real-time messaging and event processing. I design and extend GraphQL interfaces for efficient data communication between microservices and support automated build and deployment management using Docker and Gitlab CI/CD pipelines. Data is stored in the modules I work on using a PostgreSQL database.

Technical focus: Go/Golang, Kafka, GraphQL, Docker, Gitlab, CI/CD, DevOps, PostgreSQL, JIRA, Miro

• Collaborated on HL7 FHIR profiling and validation
• Created CodableConcepts (code/value systems), extensions and profiles like Composition and Bundle
• Extensive instance creation and validation
• Used Simplifier.net, Forge and the FHIR Java Validator

• Design, development and maintenance of a web application as a policy management system based on a JEE backend and a Vaadin-based UI
• Design and development of interfaces
• Integration of databases
• Design and development of unit and integration tests
• Conceptual coordination with the client
• Technologies and methods: JEE, Vaadin, EJB, Innovator, Hibernate, REST, JMS, SQL, MQ, Maven, Selenium, Arquillian, Mockito, JUnit, Log4j, OOA, OOD, Scrum, Kanban, JavaScript, HTML, CSS, Jenkins, Jenkins Pipelines, Git, GitLab, Subversion, Jira, Confluence, DB2, WebLogic

• Provision of cross-system synthetic test data for test automation for insured persons, companies and external partners in coordination with specialist departments and stakeholders, taking requirements and test cases into account
• Synthesis of test data with regard to data protection and data security

• Worked in the IT infrastructure of the Deloitte team.
• Planned assignment as service catalog manager at an insurance company in Hanover.

• Backend development with Spring Boot (Java) for health and VH
• Frontend development with Angular (TypeScript) for health and VH
• Implementation of REST services incl. business logic in the backend, development of frontend components
• Building build and deployment pipelines (GitLab CI/CD)
• Business and technical requirements analysis, maintenance of user stories, stakeholder management
• Coordination with IT architecture, UX design (mockups with Balsamiq)
• Creating interface definitions (OpenAPI), Camunda process modeling (BPMN)
• 8 years of consulting for insurance companies: property & liability (private, corporate)

• Optimizing agile work using Scrum as the chosen framework
• Coaching teams and individual members to increase collaboration efficiency, improve team effectiveness and performance, and foster a culture of continuous improvement
• Promoting and supporting the use of agile methods with Scrum, including upholding Scrum values and team self-organization
• Preboarding the internal Scrum Master

• Fully developed a CRM system for contact management in network marketing
• Enabled configuration of tags, custom reminders, birthday reminders and more
• Application is productive
• Technologies and methods: Trello, Python, Django, Rest-Framework, Bootstrap, PostgreSQL