You will build and evolve high-performance backend services and APIs for modern, large-scale digital platforms used by a global financial services client, working hands‑on in a collaborative international environment with a strong focus on reliability, security, and engineering quality.
Responsibilities
Design and develop backend services in Java
Build and maintain RESTful APIs and microservices used at scale
Collaborate with product managers, architects, and engineers to deliver new features
Contribute to system design with focus on performance, reliability, and security
Work in Agile delivery with CI/CD pipelines and DevOps ways of working
Review code and write automated tests to ensure quality and maintainability
Support applications in production and troubleshoot issues when needed
Continuously improve code quality, tooling, and engineering practices
Qualifications
Commercial experience with Java 8+ or 11+ or 17+
Strong knowledge of Spring and Spring Boot
Hands‑on experience with REST APIs
Hands‑on experience with microservices architecture
Experience with SQL databases such as PostgreSQL or Oracle
Familiarity with CI/CD pipelines
Experience with Git
Experience with Maven or Gradle
Experience working in Agile or DevOps teams
Very good English communication skills
Nice to have
Experience with AWS or GCP or Azure
Experience with Docker
Experience with Kubernetes
Experience with Kafka or MQ or other event‑driven messaging systems
Experience in banking, finance, or other regulated environments
We offer
Openness to hybrid work 2 days a week from our client office (for candidates from Kraków) and 6 days per month for candidates based outside Kraków
Working in a highly experienced and dedicated team
Benefit package tailored to your needs (medical, sport, lunch subsidy, life insurance, etc.)
About the role: Are you ready to take your Java expertise to the next level? Join our team to work with a highly scalable, highly available, real-time advertising platform that serves millions of users worldwide and handles massive real-time data at scale. We are hiring a Software Engineer to be a vital part of this mission. ...
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Senior Java Software Engineer Miejsce pracy: Warszawa Technologies we use Expected - Java Optional - Kafka - Kubernetes - Docker - AWS Operating system - Windows About the project This is a role for an engineer who wants to own things - not just deliver them. You will take complex technical initiatives from design through ...
Warszawa, Polska
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