Senior Java Engineer

Senior / Staff Java Engineer | Kafka, AWS, Distributed SystemsKraków | Hybrid: 3 days/week in the officeLooking for a role where you can stay hands-on with code, but also have real influence on architecture and technical decisions?We’re hiring a Senior / Staff Backend Engineer for a global product company building a real-time platform connecting physical infrastructure, devices and backend systems.You’ll join a small engineering team working on event-driven integrations and distributed systems where performance, reliability and production quality genuinely matter.What makes this role interesting?Staff-level IC role - no people managementreal ownership of architecture and technical decisionssmall team with high individual impactcomplex real-time / event-driven systemsmix of new development, redesign and improving existing production systemslong-term product developmentequityTech stackJava 17/21, Spring Boot, Apache Kafka, AWS, KubernetesAlso: PostgreSQL, MongoDB, Redis, Prometheus, Grafana, Terraform, Helm and Kafka Streams.What we’re looking forstrong commercial experience with Java / Spring Bootsolid hands-on experience with Apache Kafkaexperience with distributed or event-driven systemspractical AWS and Kubernetes experienceproduction troubleshooting, performance and reliability mindsetability to make architectural decisions and take ownership beyond individual ticketsstrong communication skills and English at C1Work model & package🏢 Hybrid: 3 days/week from the Kraków office💰 B2B: up to 35,000 PLN + VAT / month📄 UoP: around 30,000 PLN gross / month📈 Equity🏥 Private healthcare🏋️ MultisportThis could be a great fit if you’re a strong Senior or Staff Engineer who wants to remain close to the code while becoming a technical anchor for the team.Interested? Send us your CV and let’s talk.