Senior C++ Windows Engineer - Remote MFA/Security

Rublon; Zielona Góra; Remote; PLN 180,000 - 280,000; Full time

Benefits offered by this job

Private medical care

MultiSport card

Job summary

Rublon is seeking a skilled C++/Qt developer to extend our MFA connector for Windows and RDP. You will design and build new features, improve authentication flows, and ensure secure, high-quality desktop software for enterprise environments.

This role offers 100% remote work or a Kraków/Zielona Góra office and access to modern tools, Windows APIs, and FIDO2 standards. If you value security, software quality, and collaboration with engineers and product teams, join us to shape enterprise

Qualifications

• 3+ years of commercial C++ development experience.
• Experience with Qt desktop applications.
• Knowledge of Windows API and secure software design.
• Interest in information security and modern authentication methods.

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++ (11+) and Qt.
• Integrate FIDO2 and passwordless authentication standards.
• Collaborate with engineers, PMs, and product managers to refine requirements.
• Ensure code is maintainable, efficient, and secure.

Skills

C++ development

Qt desktop development

Windows API

Secure software design

FIDO2 / passwordless

Education

Bachelor's degree in Computer Science or related

Tools

CI/CD environments

Windows Server knowledge

Job description

Rublon is seeking a skilled C++/Qt developer to extend our MFA connector for Windows and RDP. You will design and build new features, improve authentication flows, and ensure secure, high-quality desktop software for enterprise environments.

This role offers 100% remote work or a Kraków/Zielona Góra office and access to modern tools, Windows APIs, and FIDO2 standards. If you value security, software quality, and collaboration with engineers and product teams, join us to shape enterprise