Python Software Engineer (Cybersecurity)

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 Rublon Authentication Proxy

Extend and improve the Rublon Authentication Proxy with advanced LDAP and RADIUS capabilities. Your work will focus on scalability, reliability, and observability, enabling Rublon to support a growing number of enterprise and cloud use cases while strengthening customer IT environments.

How You’ll Work

• Location: 100% remote or office in Kraków or Zielona Góra, Poland
• Technology Stack: Python 3, Linux (services), Windows Server (services), LDAP, RADIUS, Inno SetupSelf development: access to online training courses, sponsored certifications
• Benefits for employees: access to private medical care and MultiSport cardWhat You’ll DoAs a Python Software Engineer on the Rublon team you will:

Extend the Rublon Authentication Proxy with new LDAP and RADIUS features

• Improve performance, scalability, and reliability of enterprise authentication services
• Implement observability enhancements (logging, monitoring, metrics) to ensure transparency and high availability
• Develop cross-platform services for Linux and Windows environments
• Collaborate with team members on architecture, design, and implementation decisions
• Write secure, efficient, and maintainable Python code
• Contribute to automated testing, integration pipelines, and code reviews
• Assist in deploying and maintaining production-ready authentication services
• Skills You HaveAt least 3 years of commercial experience in developing Python softwareKnowledge about authentication protocols (LDAP, RADIUS)

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

Interest in information security and secure software designNice To Haves

Experience in developing server softwareKnowledge of C++ or Rust/Go programming language(s)

Knowledge of software application security

• Knowledge about Active Directory security
• Experience with CI/CD environments
• Formal education and advanced degree in Information Security, Cybersecurity, Computer Science or similar and/or commensurate demonstrated work experience in the sameWhy Apply
• You want to help build the future of enterprise-grade authentication services
• You enjoy developing secure, scalable, and reliable systems that make a real-world impact
• You thrive in a collaborative team environment where innovation and secure coding practices matter
• You are eager to grow professionally in cybersecurity and backend software 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 leadsIf everything goes well, we will make you an offer and invite you to a final interview