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Urgent! C++ Windows Software Engineer Job Opening In Zielona Gora – Now Hiring Astec Rublon

C++ Windows Software Engineer



Job description

Join Rublon to work with a team of cybersecurity enthusiasts who are building the future of enterprise user authentication.

Rublon MFA is a multi-factor authentication platform used by hundreds of customers across the globe to protect employee logins to networks, servers and applications.


We are looking for a long-term employee who will support us in the following area:


Development of MFA Connector for Windows & RDP


Work on enhancing and extending the capabilities of Rublon’s MFA connector for Windows and Remote Desktop Protocol (RDP).

You will play a key role in securing customer IT environments by building reliable, user-friendly, and secure multi-factor authentication solutions as part of our Windows authentication development team.


How You’ll Work



  • Location: 100% remote or office in Kraków or Zielona Góra, Poland

  • Technology Stack: C++ 11 or higher, Qt, FIDO2

  • Self development: access to online training courses, sponsored certifications

  • Benefits for employees: access to private medical care and MultiSport card


What You’ll Do


As a C++ Windows Software Engineer on the Rublon team you will:



  • Design and develop new features for Rublon’s MFA connector for Windows & RDP

  • Enhance authentication flows to further secure enterprise IT environments

  • Build desktop applications using C++ (11 or higher) and the Qt framework

  • Integrate cutting-edge authentication standards such as FIDO2 and passwordless login

  • Work closely with engineers, project managers, and product managers to refine requirements

  • Ensure that software is efficient, maintainable, and secure

  • Create and execute unit, integration, and system tests to ensure stability

  • Perform code reviews and contribute to maintaining high-quality coding standards

  • Improve user experience for enterprise Windows authentication scenarios


Skills You Have



  • At least 3 years of commercial experience in developing C++ software

  • Experience with Qt desktop software development

  • Knowledge of Windows API

  • Ability to come up with creative concepts using modern technologies together in unexpected ways

  • Interest in information security and secure software design


Nice To Haves



  • Knowledge of FIDO2 passwordless authentication

  • Knowledge of software application security

  • Knowledge of Windows Server and RDP configuration

  • Experience with CI/CD environments

  • Knowledge of Active Directory security

  • Formal education and advanced degree in Information Security, Cybersecurity, Computer Science or similar and/or commensurate demonstrated work experience in the same


Why Apply



  • You want to work on enterprise-grade authentication software used worldwide

  • You are passionate about securing IT environments against cyber threats

  • You thrive in a team that values innovation, security, and software quality

  • You are looking for professional growth in cybersecurity and advanced Windows development


Steps After You Apply



  1. You’ll be invited to an online meeting with our recruiter

  2. Afterwards, we’ll ask you to do a small assignment, which will then be discussed with one of our technical leads

  3. If everything goes well, we will make you an offer and invite you to a final interview


Required Skill Profession

Computer Occupations



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