# Java Engineer at Flix > Open job at Flix in Warsaw, Poland. Workplace: On-site. Source: Poland Dev Jobs, https://poland-devjobs.com/jobs/flix-java-engineer-ivyjvwz Posted 2 November 2026. Last checked on the employer's career site: 4 November 2026. ## Facts - Company: [Flix](https://poland-devjobs.com/companies/flix) - Location: Warsaw, Poland - Workplace: On-site - Employment type: Contract - Salary: zł 89–119 / hour (B2B) - Polish: Not required - English: Business level - Skills: AWS, GitHub Actions, GitLab CI, GraphQL, Java, Kafka, Kotlin, Kubernetes, PostgreSQL, Spring, Terraform - Not mentioned in the job post: visa sponsorship, relocation, where you can apply from ## Job description Rate: 89 – 119 PLN/hour (B2B) We are looking for a skilled **Java Engineer** for service agreement collaboration (B2B contract) to cooperate with a team dedicated to Network Planning at FlixTrain - building internal tools that help plan the timetable and vehicle allocation, reduce manual processes, and increase productivity. This is a greenfield environment with plenty of room to shape new products from the ground up and explore innovative solutions for our internal users. **Scope of Services** You will independently design, develop and deliver reliable backend services within a self-organized, cross-functional, distributed team. This includes building robust APIs and event-driven integrations for our internal tools, with a strong focus on internal user needs. You will also help drive backend architecture decisions and contribute to technical quality across teams through code reviews and close collaboration. **About the Engagement** - Design, build and maintain backend services and APIs that automate and simplify FlixTrain Network Planning workflows - Develop and evolve data models and integrations, including asynchronous, event-driven communication between services - Work with internal users, product and other engineers to understand their needs and turn them into practical technical solutions - Write and maintain automated tests to ensure the reliability and maintainability of the services you deliver - Collaborate with other engineers across a distributed architecture within an Agile environment - Document technical decisions, solutions and ways of working - Our backend stack: - Java with Spring Boot - AWS - Kafka - Kubernetes - Terraform for IaC - GraphQL - PostgreSQL - GitLab CI **About You** - You have 3 to 5 years of experience building backend applications, from which a couple of years building backend applications in Java or another JVM language such as Kotlin - You have worked in cloud environments (ideally AWS) - You have practical experience with at least one of the following: - Building and running on AWS - Designing, building and maintaining event-driven systems with Kafka - Deploying and operating workloads on Kubernetes - Managing infrastructure as code, ideally with Terraform - You write automated tests as a natural part of your development process and care about code quality and maintainability - Understanding of event-driven systems and how to work with them - Solid written and spoken English skills - Experience working in an Agile setup - Curiosity about the business domain. Interest in transportation, logistics or similarly complex domains is a good signal, as is the ability to explain such a domain clearly **Nice to have** - Experience building services with Spring Boot - Experience working with databases, relational and/or NoSQL - Experience with CI/CD pipelines (GitLab CI or GitHub Actions) - A DevOps mindset: you are willing to own pipelines, infrastructure and quality, not just the application code - Experience with agentic or AI-assisted coding We recognize that everyone carries a unique set of valuable skills and experiences. If you think you could have an impact even though you don't meet 100% of the requirements, we still encourage you to apply. We want to hear from you! **What We Offer** - **Travel perks**: 12 free Flix vouchers + 12 discount vouchers for friends & family. - **Work from (M)Anywhere**: Depending on your role, work from another location for up to 60 days per year. - **Hybrid work model**: We are an office-first company, but we offer flexibility to balance work and life. - **Wellbeing support**: Access confidential 1:1 counselling, courses, and stress management for yourself and up to four family members. - **Learning & Development**: Take advantage of language classes, training courses, and expert-led sessions to grow your skills. - **Mentoring Program**: Connect with experienced colleagues to gain insights and accelerate your career. To view more local benefits specific to each office location, please check out this link: [Locations - Flix Career](https://flix.careers/locations/) --- **Why Join Flix?** At Flix, we empower our teams to push boundaries and shape the future of mobility. As we continue to scale globally, we harness cutting-edge technology to make mobility smarter, more sustainable, and more affordable. If you’re looking for a place where you can drive change and redefine how millions of people travel, Flix is the place where you can lead your journey! ## How to apply Apply on the job page, https://poland-devjobs.com/jobs/flix-java-engineer-ivyjvwz: its Apply button opens the employer's own application page. ## More jobs from Flix - [Java Software Engineer - FinTech](https://poland-devjobs.com/jobs/flix-java-software-engineer-fintech-7724v8a): Flix, Warsaw, Poland. On-site. Posted 28 October 2026. - [DevOps / Cloud Infrastructure Engineer](https://poland-devjobs.com/jobs/flix-devops-cloud-infrastructure-engineer-ombrq4i): Flix, Warsaw, Poland. On-site. Salary: zł 90–119 / hour (B2B). Posted 28 October 2026. - [Senior Fullstack Software Engineer (Python/Java) - Service Agreement](https://poland-devjobs.com/jobs/flix-senior-fullstack-software-engineer-python-java-service-agree-98qhobm): Flix, Warsaw, Poland. On-site. Salary: zł 135–170 / hour (B2B). Posted 26 October 2026. - [Senior Software Engineer (Android) - Service Agreement](https://poland-devjobs.com/jobs/flix-software-engineer-android-service-agreement-al74f9t): Flix, Warsaw, Poland. On-site. Salary: zł 135–170 / hour (B2B). Posted 21 October 2026. - [ERP Integration Engineer](https://poland-devjobs.com/jobs/flix-workday-integration-engineer-wgu49tw): Flix, Warsaw, Poland. On-site. Salary: zł 89–172 / hour (B2B). Posted 20 October 2026.