Rust/C++ Software Engineer (ZTNA)

Rublon; United States; Hybrid; USD 45,000 - 70,000; Full time

Job summary

Rublon is seeking a security-focused software engineer to contribute to research and development on web proxy security and Zero Trust Network Access. You will shape secure ways for users to reach business applications while supporting passwordless authentication.

The role blends systems programming with security research and requires collaboration across engineering, product, and security teams.

Qualifications

• Software development experience relevant to systems programming, with Rust and C++ in the stack.
• Interest or experience in cybersecurity and secure software design.
• Ability to work collaboratively with peers across disciplines.
• Motivation to investigate security problems and turn findings into practical software.

Responsibilities

• Research security approaches for web proxies and application access.
• Design and build software applying Zero Trust principles to access workflows.
• Contribute to passwordless authentication capabilities.
• Collaborate with engineers, product managers, and security specialists on solution design and delivery.
• Apply secure software design practices and share knowledge with the team.

Skills

Rust

C++

Job description

Role overview

Contribute to research and development on web proxy security and Zero Trust Network Access, helping shape secure ways for users to reach business applications. The work supports passwordless authentication and combines systems programming with security research and collaboration across engineering, product, and security teams.

Responsibilities

• Research security approaches for web proxies and application access.
• Design and build software that applies Zero Trust principles to access workflows.
• Contribute to passwordless authentication capabilities.
• Collaborate with engineers, product managers, and security specialists on solution design and delivery.
• Apply secure software design practices and share knowledge with the team.

Requirements

• Software development experience relevant to systems programming; the role’s stated stack includes Rust and C++.
• Interest or experience in cybersecurity and secure software design.
• Ability to work collaboratively with peers across disciplines.
• Motivation to investigate security problems and turn findings into practical software.

Nice to have

• TypeScript, Python, FIDO2 or passkey knowledge, application security, web server or systems administration, CI/CD or Docker experience, penetration testing, or an advanced degree in a related field or equivalent experience.

Benefits and work setup

The position may be based on-site in Kraków or Zielona Góra under an employment contract, or remotely from within Poland on a B2B basis. Training, courses, and knowledge sharing are part of the development environment.