Python Software Engineer (Cybersecurity)

Mid • Remote

11,000 - 17,500 PLN

Krakow, Poland

Join a team building enterprise-grade multi-factor authentication technology used to protect employee access to networks, servers, and applications.

Quick Facts

Location: 100% remote or from the office in Kraków or Zielona Góra, Poland
Technology stack: Python 3, Linux services, Windows Server services, LDAP, RADIUS, RadSec, Active Directory, Microsoft Entra ID, x.509 certificates, SIEM integrations, GitHub CI/CD, Inno Setup
Self-development: access to online training courses and sponsored certifications
Benefits: private medical care and MultiSport card

Description

This is a pure backend engineering role focused on developing and improving cybersecurity connectors and authentication services. The work centers on extending MFA capabilities into enterprise IT environments and building secure, scalable backend systems.

Responsibilities

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

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 for enterprise environments
Understanding of Linux services and backend application deployment
Experience with automated testing and maintainable engineering practices
Working knowledge of CI/CD concepts, preferably with GitHub-based pipelines
Interest in cybersecurity and secure software design
Ability to independently analyze technical problems and propose robust solutions

Nice To Have

Experience with C++, Rust, or Go
Experience with Active Directory
Experience with Microsoft Entra ID
Knowledge of LDAP security and directory integrations
Experience with RADIUS and RadSec
Knowledge of x.509 certificates, TLS, and certificate-based trust models
Experience with SIEM systems and security log export
Familiarity with CEF, Syslog, and JSON formats
Experience developing server-side software for Linux and Windows Server
Knowledge of software application security and secure networking
Experience with GitHub Actions or similar CI/CD systems
Formal education in Information Security, Cybersecurity, Computer Science, or related field, or equivalent experience

Benefits

Private medical care
MultiSport card
Access to online training courses
Sponsored certifications

Rublon

Rublon Services is a technology consulting and software development company operating since 1993. The company specializes in consulting, custom software development, and cloud services, delivering digital innovation to market-leading clients across the automotive, energy, and telecommunications sectors. Rublon focuses on advising organizations on innovation and design while building, maintaining, and supporting compliant enterprise-grade software solutions. With decades of experience, the company emphasizes long-term partnerships, technical excellence, security-conscious engineering practices, and scalable digital transformation initiatives for large enterprises.

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