Lufthansa Industry Solutions
Software Engineer for Cloud Native Architectures
2023 - present, Hamburg, Germany
Project #1: Digital Product Passport Application: Development of an EU-compliant digital ID for products, components, and materials.
Responsibilities & Achievements:
- Designing and architecting a scalable greenfield application from scratch based on comprehensive business requirements gathered from various stakeholders.
- Agile development of Go microservices (e.g., file storage, data management, admin services).
- Task planning and management of a small backend development team.
- Deployment of microservices using Docker, Kubernetes, ArgoCD, and GitLab CI.
- Implementation and management of authentication (OIDC & ApiKey) and authorization using RedHat SSO.
- Implementation of an API gateway with Nginx as the single entry point for our microservices and client applications.
Project #2: New system for managing and issuing aircraft component certificates (e.g., EASA Form 1, FAA Form 8130-3).
Responsibilities & Achievements:
- Developed REST APIs with Quarkus, managed specifications via Apicurio, and integrated with OracleDB.
- Implemented CI/CD with Jenkins and deployed services to Kubernetes using Helm.
- Integrated with enterprise systems, including SAP processes via OData, internal REST services for component data, and company-wide SSO.
- Supported multiple certification workflows, ensuring compliance and traceability across the supply chain.
DPS - IT for Finance, Retail & Public Sector
Software Developer
2018 - 2023, Hamburg, Germany
Development of European wide leading system in the area of payment transactions
>100 Mio. transactions 24/7 High Load Backend >25 big clients (banks)
Project topics: Domestic and foreign payment transactions, Instant Payments, Clearing & Settlement, Backoffice, SWIFT, SEPA, MX-Migration, Reporting, etc.
Responsibilities:
- Customer-oriented backend development under time pressure
- Responsive and targeted problem solving
- Analysis, consulting, review, and solution of conceptual design problems
- Support of the test team
- Development, refactoring, maintenance, optimization under existing legacy structures
- Effort estimation of topics and projects
Dev topic examples:
- Integration of TARGET Instant Payment Settlement (provided by European Central Bank) into existing instant payment processing. Focus on liquidity management. Integration with Continuous gross settlement REST API.
- GTVO (Geldtransferverordnung) validation that helps payment service providers to determine absence or incompleteness of ordering party and beneficiary information (anti-money laundering).
- SWIFT-MX migration. Migration of the largest and oldest payment format from string-based implementation to xml base. Creation of backward compatibility.
Tech-Stack: Java, Java EE, Oracle Enterprise, Active MQ, JBoss, Git, Jenkins, Docker, Kubernetes
Envidatec GmbH
Software Engineer
2014 - 2018, Hamburg, Germany
Development of My-JEVis energy monitoring software, which makes it easy and cost-effective to keep track of consumption, production data and costs.
Responsibilities:
- Backend & frontend development in a small agile team
- Maintenance, Deployment, Testing
- Customer data analysis
- Setup of measurement equipment, data collectors and other hardware
Tech-Stack: Java, MySQL, Angular