About Marcel
Portuguese
Native or bilingual
English
Fluent
German
Conversational
Experience
- libC TechnologiesSenior PKI Software EngineerTECHMay 2020 - December 2025 (5 years and 7 months)Switzerland- Developed backend services for eIDAS-compliant digital signature platform (Java, Play, PostgreSQL, Docker, Kubernetes, GitLab CI/CD).- Contributed to frontend features using Angular (TypeScript, RxJS).- Implemented Kafka message production and consumption for certificate lifecycle events (non-administrative usage).- Designed secure REST APIs and containerized microservices.
- Natixis BankSenior Backend EngineerTECHJanuary 2020 - December 2020 (11 months)Portugal- Built REST APIs for merchant payment systems using Java Spring Boot and MySQL.- Participated in microservices refactoring and CI/CD optimization.
- Jumia GroupSenior Software EngineerTECHJanuary 2019 - December 2019 (11 months)Portugal- Developed scalable payment gateway APIs in a microservices architecture.- Implemented Kafka-based event publishing and consumption for payment workflows (no cluster administration).- Applied DDD, TDD, trunk-based development, and blue-green deployments.
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Education
- MBA2026MBA
- Bachelor of ScienceAmsterdam University of Applied Sciences2024Bachelor of Science