Join our team supporting a global leader in cloud communications – a company behind the technologies powering voice, video, and messaging experiences used by millions of people worldwide. As part of this long-term collaboration, you’ll contribute to building modern, scalable backend systems that are key to real-time communication at a global scale.
Were looking for a skilled Backend Developer who is confident with Golang and Java (or Kotlin), passionate about clean code, and comfortable working in cloud-native environments.
Ready for your next big challenge? Apply now and be part of something that truly connects the world.
responsibilities :
Develop scalable, resilient microservices in Go and Java/Kotlin to support high-traffic systems
Contribute to system design, architecture decisions, and performance improvements
Write and maintain high-quality tests (unit, integration, E2E) to ensure reliability and maintainability
Collaborate in code reviews, share best practices, and support team knowledge sharing through documentation
Participate in CI/CD workflows and deploy your code using modern tools like Docker, Helm, and Kubernetes
requirements-expected :
At least 5 years of experience in backend development with Go and Java or Kotlin
Solid understanding of object-oriented programming, design patterns, and multi-threaded systems
Hands-on experience with cloud platforms (AWS preferred), microservices, SQL/NoSQL databases, and RESTful APIs
Familiarity with event-driven architecture and modern deployment pipelines
Excellent English communication skills (at least B2 level), both spoken and written
Residing in Poland required
offered :
Great Place to Work since 2015 - it’s thanks to feedback from our workers that we get this special title and constantly implement new ideas
Employment stability - revenue of PLN 2.1BN, no debts, since 2006 on the market
We share the profit with Workers - over PLN 60M has already been allocated for this aim since 2022
Attractive benefits package - private healthcare, benefits cafeteria platform, car discounts and more
Comfortable workplace – class A offices or remote work
Dozens of fascinating projects for prestigious brands from all over the world – you can change them thanks to Job Changer application
PLN 1 000 000 per year for your ideas - with this amount, we support the passions and voluntary actions of our workers
Investment in your growth – meetups, webinars, training platform and technology blog – you choose
Fantastic atmosphere created by all Sii Power People
