Rust/C++ Software Engineer (ZTNA)

Rublon Access Gateway; Kraków; Remote; PLN 180,000 - 260,000; Full time

Benefits offered by this job

Opportunities for self-development through training and courses

Collaborative environment with cybersecurity experts

Job summary

A cybersecurity firm is seeking an experienced R&D software developer to work on innovative solutions for passwordless authentication. You will collaborate with engineers and security experts while utilizing cutting-edge technologies such as Rust, C++, and TypeScript. The ideal candidate has over 3 years of experience in software development and a strong interest in information security. This role offers remote flexibility and a commitment to self-development within a support-oriented culture.

Qualifications

• 3+ years of experience in software development with Rust, C++, and/or TypeScript.
• Familiarity with web proxy and reverse proxy concepts.
• Genuine interest in information security and secure software design.

Responsibilities

• Design, implement, and optimize high-performance software in Rust and C++.
• Contribute to passwordless authentication components in TypeScript.
• Deliver clean, maintainable, and secure code following industry best practices.
• 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

Rust

C++

TypeScript

Information Security

Reverse proxies

Information security

Education

Advanced degree in Cybersecurity, Information Security, or Computer Science

Tools

Docker

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.

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.