C++ Windows Software Engineer

Rublon; Kraków; Hybrid; PLN 45,000 - 65,000; Full time

Benefits offered by this job

Access to private medical care

MultiSport card

Access to online training courses

Job summary

Rublon is seeking a C++ Developer to join their team, focusing on the development of multi-factor authentication solutions for enterprise environments. This role allows flexibility to work 100% remotely or from the office in Kraków, Poland.

Responsibilities include designing and developing new features for Rublon’s MFA connector, enhancing authentication flows, and maintaining software quality. The ideal candidate will have at least 3 years of commercial C++ experience and an interest in information security.

The position offers access to private medical care and a MultiSport card.

Qualifications

• At least 3 years of commercial experience in developing C++ software.
• Experience with Qt desktop software development.
• Knowledge of Windows API.

Responsibilities

• Design and develop new features for Rublon’s MFA connector for Windows & RDP.
• Enhance authentication flows to secure enterprise IT environments.
• Build desktop applications using C++ and the Qt framework.
• Integrate cutting-edge authentication standards.
• Create and execute unit, integration, and system tests.

Skills

C++ software development

Qt framework

Windows API knowledge

Information security interest

Creative technology integration

Education

Degree in Information Security or Computer Science

Tools

FIDO2

CI/CD environments

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.

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

• 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 environmentsKnowledge 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

• You’ll be invited to an online meeting with our recruiter
• Afterwards, we’ll ask you to do a small assignment, which will then be discussed with one of our technical leads
• If everything goes well, we will make you an offer and invite you to a final interview