Last updated on August 19, 2025
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:
R&D on Web Proxy and Zero Trust Network Access Security
Rublon’s research and development activities on securing access to applications will enable us to build innovative solutions for passwordless multi-factor authentication. By leveraging web proxies and Zero Trust Network Access (ZTNA) principles, we are creating technologies that transform how enterprises provide secure, seamless, and user-friendly access to business-critical resources.
How You’ll Work
- Location: Remote or from our offices in Kraków or Zielona Góra, Poland.
- Become part of Rublon’s R&D team working on the future of passwordless authentication and ZTNA.
- Collaborate with engineers, product managers, and security experts to design and deliver secure, innovative solutions.
- Work with cutting-edge technologies including Rust, C++, TypeScript, and FIDO2.
- Benefit from opportunities for self-development through training, courses, and knowledge sharing.
- Experience a culture that values creativity, innovation, and technical excellence.
What You’ll Do
- Design, implement, and optimize secure, high-performance software in Rust and C++.
- Contribute to components related to passwordless authentication in TypeScript.
- Build secure and scalable solutions for web proxies, reverse proxies, and communication layers.
- Prototype and validate new ideas by creatively combining modern technologies.
- Participate in architectural design sessions, code reviews, and technical discussions.
- Deliver clean, maintainable, and secure code following industry best practices.
Skills You Have
- 3+ years of commercial experience in software development with Rust, C++, and/or TypeScript.
- Familiarity with web proxy and reverse proxy concepts.
- Strong ability to create innovative solutions with modern technologies.
- A genuine interest in information security and secure software design.
Nice To Haves
- Experience with Python.
- Knowledge of FIDO2 / Passkeys and passwordless authentication.
- Understanding of software application security.
- Familiarity with web servers and system administration.
- Hands-on experience with CI/CD environments (e.g., Docker).
- Background in penetration testing or offensive security.
- Advanced degree in Cybersecurity, Information Security, Computer Science, or equivalent experience.
Why Apply
- Join a company trusted by enterprises worldwide to secure digital identities.
- Work on cutting-edge research and development in passwordless authentication and ZTNA.
- Collaborate with some of the brightest experts in cybersecurity.
- Develop your career in an environment that values self-development, knowledge sharing, and continuous learning.
- Be part of a supportive culture that fosters creativity and bold thinking.
Steps After You Apply
- Submit your application and share your experience with us.
- Our recruitment team will review your profile.
- If there’s a fit, you’ll be invited to an initial conversation with our recruiters.
- You’ll then move forward with technical interviews with our engineering team.
- Successful candidates will complete a final cultural and values interview.
We look forward to connecting with you and exploring how you can help us shape the future of passwordless authentication.
