EU remote
Senior Java Engineer (m/f/n)
About this role
Your responsibilities: Engineering 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 Ownership & Delivery Take full ownership of features end-to-end - from requirements to production and beyond Work directly with business stakeholders to challenge assumptions and align on solutions You understand your product deeply - the business context, the customer impact, the why behind every feature Working across a large organisation with many teams is complex.
You navigate that complexity, build bridges, and push things over the finish line Write clear technical documentation: System Design docs, RFCs, and ADRs Identify and address technical debt proactively - before problems become incidents Participate actively in architecture discussions with well-reasoned proposals 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 Maven/Gradle, Git, JIRA, Confluence, Code Reviews, CI/CD 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, accelerate development, and solve complex problems.
Ability to critically evaluate AI-generated outputs and apply them responsibly within professional workflows. Nice-to-have Kotlin development experience Domain-Driven Design (DDD), CQRS, Event Sourcing gRPC, GraphQL GCP: Cloud Functions, Pub/Sub, GKE, Cloud Spanner MongoDB Experience with high-throughput, low-latency systems Background in e-commerce, logistics, or fintech Why Join InPost? Opportunity to work in a diverse , international , and cross-functional environment, along with leading experts .