Senior Java Backend Developer
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Senior Java Backend Developer (Spring Boot/Kafka/Kubernetes) - Hybrid Lisbon (1 day/week office)
### ABOUT THE OPPORTUNITY
Join the Lisbon tech hub of Switzerland's national postal and logistics company — one of the country's largest employers and a major IT organisation running over 1,000 applications and 400+ software projects annually. This is a senior backend role within a team focused on master data management systems, where data consistency, availability, and correctness are mission-critical. If you're a seasoned Java engineer who thrives in structured, high-quality delivery environments and wants to work on complex enterprise systems with real impact, this is a compelling opportunity.
Language: English B2 minimum (German a plus) | Level: Senior | Location: Lisbon (hybrid, 1 day/week in office)
### PROJECT & CONTEXT
You'll be responsible for backend applications within a master data management domain, working in a modern Spring Boot stack deployed on Kubernetes. The role covers the full engineering lifecycle — from feasibility analysis and API/data model design through implementation, unit testing, and quality assurance — in close collaboration with a cross-functional Scrum team. Customer and master data demand the highest standards of consistency and correctness, making architectural rigour and attention to detail essential.
Tools: IntelliJ, GitLab, Confluence, Jira, ArgoCD, Docker
### WHAT WE'RE LOOKING FOR
5+ years of hands-on Java experience in production enterprise environments
Strong experience with Spring Boot, Spring Batch, and Spring Cloud Data Flow
Solid experience with REST APIs and Apache Kafka for event-driven integration
Experience in database modelling and SQL queries for high-consistency data environments
Ability to define and design APIs and data models aligned with modern architecture standards
Experience writing unit tests and contributing to team-wide quality standards
Background in banking, financial services, or similarly regulated environments — required
Collaborative, hands-on mentality with a continuous improvement mindset
Comfortable and energised working within an Agile/Scrum team
Good analytical and communication skills
Degree in Computer Science, Information Technology, or equivalent
English B2 or above — oral and written
Based in Portugal, available for hybrid work in Lisbon, 1 day/week
Willingness to travel occasionally (including potential onboarding in Switzerland)
### NICE TO HAVE
Knowledge of GitLab, Docker, and Kubernetes for containerised deployment and CI/CD workflows
Experience with ArgoCD for GitOps-based deployment management
German language skills — oral and/or written
Exposure to master data management platforms or data governance frameworks
Compensation: €** to €**/year, depending on experience and seniority level.
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