About the project

• Join to Sii as a C++ Developer, we’re supporting a project in building a new Qt/QML-based user interface as part of digital fleet and operations solutions for municipalities and contractors. The project involves developing the system from scratch, integrating it into existing architecture, and enabling smooth knowledge transfer to internal teams. The project supports smart winter services and real-time data visualization, CO₂-reducing fleet management tools, a cloud-based platform for real-time fleet tracking and optimization.

Your responsibilities

• Develop new user interfaces and components in Qt/QML as part of a greenfield project
• Integrate with existing back-end systems and cloud-connected platforms
• Collaborate with internal developers and stakeholders in an agile, SCRUM-based environment
• Ensure maintainability and scalability of the solution

Our requirements

• At least 4 years of experience as a C++ Developer (high-level programming)
• Strong C++ development background, ideally in embedded or real-time environments
• Extensive hands-on experience with Qt/QML
• Experience building front-end systems from scratch and integrating them into complex architectures
• Understanding of software design patterns, modular code, and testability
• Excellent communication skills in English
• Fluent Polish required
• Residing in Poland required

Technologies we use

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 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