Wrocław, Wrocław, Lower Silesian Voivodeship, Polska
Sii Sp. z o.o.
2. 1. 2026
Informacje o stanowisku
technologies-expected :
Java
AI
LLM
GitHub Copilot
Claude Code
about-project :
We’re building a next-generation technology team focused on modernising critical financial services through AI-first engineering. You’ll play a key role in transforming complex legacy systems into modern, scalable, and intelligent solutions. You’ll work hands-on with the latest AI tools to accelerate development, improve code quality, and deliver measurable impact across the organization.
Sii ensures that all employment-related decisions are made solely on the basis of qualifications and competencies. We are committed to equal treatment of all individuals, regardless of any protected characteristics, and promoting a diverse and inclusive work environment.
responsibilities :
Modernizing legacy systems using AI to analyze, refactor, and optimize existing codebases
Implementing modern architecture patterns, including strangler fig and microservices migration approaches
Delivering production-ready services with robust testing, clear documentation, and multi-instance deployment support
Using AI tools throughout the SDLC to boost productivity and ensure faster delivery cycles
Collaborating with cross-functional teams to ensure smooth service transition and ownership handover
Demonstrating measurable improvements in performance, reliability, and API efficiency
requirements-expected :
Minimum 7 years of professional experience in Java programming
Experience with legacy system refactoring or service modernization projects
Hands-on experience with AI-powered development tools (e.g., GitHub Copilot, Claude Code, or similar LLMs)
Solid understanding of CI/CD, automated testing, and cloud-native architectures
Ability to design scalable, secure, and maintainable software solutions
Willingness to travel to Krakow for short business delegations as needed
Excellent command of English, both written and spoken, enabling effective communication in an international environment
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 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 – 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