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RUBLON sp. z o.o.

Python Software Engineer (Cybersecurity)

RUBLON sp. z o.o. Show all offers
11000 - 17500 PLN
B2B
Senior
Zielona Góra
Expires Sep 26, 2026
23 days ago

In short

Python Software Engineer (Cybersecurity) for RUBLON sp. z o.o. in Zielona Góra. Responsibilities include developing backend cybersecurity services, building authentication connectors, and improving service performance. Requires 3+ years of Python backend experience and knowledge of authentication/networking concepts. B2B contract, full-time.

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About the project

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Team size

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Team members

Your responsibilities

  • Develop and extend backend cybersecurity services written in Python
  • Build and maintain authentication-related connectors for LDAP, RADIUS, RadSec, and related protocols
  • Work with enterprise identity and access technologies such as Active Directory and LDAP
  • Design integrations that allow Rublon MFA logs to be exported to SIEM systems
  • Work with security log formats such as CEF, Syslog, and JSON
  • Improve the performance, scalability, and reliability of backend authentication services
  • Implement observability improvements, including structured logging, monitoring, metrics, and diagnostics
  • Develop services for Linux and Windows Server environments
  • Design secure, maintainable software with attention to authentication, authorization, networking, and operational security
  • Build and maintain CI/CD pipelines using GitHub
  • Collaborate with engineers on architecture, design, implementation, testing, and code reviews

Our requirements

  • At least 3 years of commercial experience developing backend software in Python
  • Practical understanding of secure backend development
  • Knowledge of authentication, identity, or secure networking concepts
  • Experience or strong familiarity with LDAP and/or RADIUS
  • Ability to design reliable backend services that operate in enterprise environments
  • Understanding of Linux services and backend application deployment
  • Experience with automated testing, code review, and maintainable software engineering practices
  • Working knowledge of CI/CD concepts, preferably with GitHub-based pipelines
  • Interest in cybersecurity, secure software design, and enterprise authentication systems
  • Ability to analyze technical problems independently and propose robust engineering solutions

Optional

  • Another backend programming language, especially C++, Rust, or Go
  • Active Directory
  • Enterprise cloud identity solutions such as Microsoft Entra ID
  • LDAP security and directory integrations
  • RADIUS and RadSec
  • x.509 certificates, TLS, and certificate-based trust models
  • SIEM systems and security log export
  • SIEM log formats such as CEF, Syslog, and JSON
  • Development of server-side software for Linux and Windows Server
  • Software application security
  • Secure networking concepts
  • GitHub Actions or similar CI/CD systems
  • Formal education in Information Security, Cybersecurity, Computer Science, or a related field, or equivalent demonstrated professional experience

This is how we work on a project

Development opportunities we offer

Benefits

Steps After You Apply

  • You’ll be invited to an online meeting with our recruiter
  • Afterwards, we’ll ask you to complete a small assignment, which will then be discussed with one of our technical leads
  • If everything goes well, we will make you an offer and invite you to a final interview

Why Apply? This role may be a strong fit if:

  • You want to build backend technology in the cybersecurity space
  • You are interested in enterprise authentication, MFA, identity systems, and secure networking
  • You enjoy developing reliable services that run in real customer environments
  • You want to work on integrations with protocols and systems such as LDAP, RADIUS, Active Directory, RadSec, x.509, and SIEM platforms
  • You prefer backend engineering and do not want a frontend-focused role
  • You value secure coding practices, automation, observability, and long-term maintainability
  • You want to grow professionally in cybersecurity and backend software engineering
Published 2026-08-27
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