April 24, 2026

Java Application Architect (f/m/x)

Senior • Hybrid

Warsaw, Poland

As a Java Application Architect, you will be focused on IT eMobility solutions architecture, aiming to improve it, extend and ultimately take part in EV Platform development.

Don’t miss this opportunity and apply!

Your tasks

Understand business drivers, capabilities, and both current and future needs within the loyalty domain
Translate business requirements into feasible, high-level and detailed architectural blueprints
Design solutions that consider a broad ecosystem of products, projects, services, systems, and non-functional requirements
Lead solution design in close cooperation with other architects, developers, and stakeholders
Document solution architecture designs and decisions
Contribute to coding activities if you choose to stay hands-on

Requirements

Minimum 7 years of software development experience, including working on architecture design
Background as a Java Software Developer is a strong advantage
Practical understanding of backend (Java, Spring, Hibernate) and frontend (TypeScript, Angular) technologies
Expertise in working with cloud platforms such as AWS and Azure
Understanding of containerization and orchestration using Docker and Kubernetes
Experience working with multiple, diverse technologies, platforms, and processing environments
Good understanding of product management, Agile principles, and development methodologies
Master’s degree in Computer Science, IT, Engineering, System Analysis, or a related field
English and Polish proficiency at the C1 level
Residing in Poland required

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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