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.NET Developer with WPF
  • Kraków
.NET Developer with WPF
Kraków, Kraków, Lesser Poland Voivodeship, Polska
Sii Sp. z o.o.
16. 12. 2025
Informacje o stanowisku

technologies-expected :


  • .NET
  • C#
  • WPF
  • Microsoft SQL Server

technologies-optional :


  • WinForms

about-project :


  • We are seeking a skilled and motivated .NET Developer to support the modernization of internal software tools used across industrial control systems. The role involves a major technology migration, architecture modularization, and implementation of features enabling automation of decision-making processes in cooperation with domain specialists (material regulatory compliance.

responsibilities :


  • Migrating application functionalities from WinForms to WPF
  • Ensuring high performance, usability, and alignment with modern architectural standards
  • Participating in the redesign and modularization of an existing monolithic application
  • Collaborating closely with internal teams responsible for material regulations compliance to understand business rules and translate them into robust technical solutions
  • Implementing features supporting automation of decision-making processes, including logic, workflows, and validation layers
  • Designing and optimizing database structures
  • Developing and maintaining unit tests and functional tests to ensure quality and long-term system reliability

requirements-expected :


  • Minimum 3 years of professional experience in software engineering
  • Strong experience with C#/.NET and object-oriented programming
  • Familiarity with WinForms and WPF (Windows Presentation Foundation)
  • Knowledge of migrating legacy applications or modernizing existing solutions
  • Good understanding of modular software architecture and component-based design
  • Solid experience with SQL Server and relational database design
  • Ability to work independently and meet project milestones
  • Strong collaboration and communication skills within a project team environment
  • Degree in Software Engineering, Computer Science, Electronics/Electrical Engineering, or a related field
  • Fluent Polish required
  • 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

  • Praca Kraków
  • Kraków - Oferty pracy w okolicznych lokalizacjach


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