April 29, 2026

Java Developer (f/m/x)

Senior • Hybrid

Wroclaw, Poland

Join Sii and play a key role in delivering solutions for international clients. As a Java Developer, you will design and build scalable backend systems, develop microservices, and ensure high-quality code. You will collaborate with cross-functional teams and support strategic technology initiatives across the organization. We are looking for candidates who are open to working in a hybrid model (2 days at the office).

Your tasks

Design, develop, and maintain Java-based backend applications
Build and evolve microservice architectures
Collaborate with product owners, architects, and QA teams
Ensure code quality through reviews, testing, and best practices
Actively contribute to technical improvements and innovations

Requirements

At least 5 years of experience with Java
Hands-on knowledge of Spring Framework
Experience with Hibernate
Understanding of microservice architecture
Proactive mindset, good communication, and teamwork skills
A very good level of English is required

Nice-to-have requirements

Experience with cloud platforms

What we offer

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 76M 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
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

If you want to work on systems with high operational significance — apply now!

Sii

Sii is a company recognized as a "Great Place to Work" since 2015, thanks to employee feedback and the implementation of new ideas. Established in 2006, Sii has demonstrated financial stability with a revenue of 2.1 billion PLN and no debts. The company shares its profits with employees, having allocated over 76 million PLN for this purpose since 2022. Sii offers a rich benefits package, including private healthcare, a cafeteria platform, and discounts on cars. Employees can work in comfortable A-class offices or remotely. Sii is involved in numerous fascinating projects for prestigious global brands and invests 1 million PLN annually to support employee passions and volunteer actions. The company emphasizes personal development through meetups, webinars, a training platform, and a technology blog. Sii is characterized by a fantastic atmosphere created by its "Sii Power People."

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