Senior Java Engineer
Location
Poland
Posted
5 days ago
Salary
0
Seniority
Senior
Job Description
Senior Java Engineer
InPost Group
• Design and implement high-performance microservices in Java / Spring Boot • Build and maintain event-driven integrations using Apache Kafka • Own the data layer: schema design, query optimisation, migrations (PostgreSQL) • Work within a containerised cloud-native environment: Docker, Kubernetes, GCP • Hold the bar on code quality through reviews, testing standards, and CI/CD discipline • Mentor team members and advocate for a culture of quality and continuous improvement • Take full ownership of features end-to-end - from requirements to production and beyond • Write clear technical documentation: System Design docs, RFCs, and ADRs • Participate actively in architecture discussions with well-reasoned proposals
Job Requirements
- 5+ years of commercial Java development (Java 11/17+, Spring Boot, Spring Security, JPA/Hibernate)
- Strong experience with distributed systems - microservices, event-driven patterns, inter-service communication
- Deep JVM internals: memory model, GC tuning, concurrency, performance profiling
- Apache Kafka - producers, consumers, consumer groups, offset management, error handling
- PostgreSQL - relational modelling, indexing strategy, query plans, schema migrations
- Docker + Kubernetes - day-to-day production usage
- Proven ability to work with non-technical stakeholders and write design documents others want to read
- English B2+ - team and stakeholder communication
- Proficiency in leveraging AI tools and large language models (e.g., GitHub Copilot, ChatGPT, Claude) to enhance productivity.
Benefits
- Excellent working environment and flexible hours
- Opportunity to work in a diverse, international, and cross-functional environment
- Professional development opportunities
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