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C++ Windows Security Researcher
  • Zielona Góra
C++ Windows Security Researcher
Zielona Góra, Zielona Góra, Lubusz Voivodeship, Polska
RUBLON sp. z o.o.
5. 9. 2025
Informacje o stanowisku

C++ Windows Security Researcher

Miejsce pracy: Zielona Góra

Technologies we use

Expected

  • C++
  • C
  • Windows API

Operating system

  • Windows

About the project

Rublon’s research & development activities on Windows and Active Directory security will enable us to develop new solutions for passwordless multi-factor authentication in these environments. This is a greenfield project.

Your responsibilities

  • Perform security research on authentication protocols (LDAP, Kerberos, NTLM, SMB)
  • Research on Windows and Windows Server security
  • Research on MFA integration possibilities with Windows and Windows Server
  • Research on Active Directory security
  • Research on Kerberos and NTLM authentication protocol security
  • Research on MFA integration possibilities with Active Directory
  • Research on usage of Trusted Platform Module (TPM) on Windows for secure user authentication
  • Research on usage of Bluetooth on Windows for secure user authentication
  • Develop enterprise software solutions for Windows user authentication
  • Development takes place locally on your company laptop as well as on external testing environments
  • Analyze requirements, create concepts and discuss them with the project and product manager
  • Monitor code quality and perform code reviews
  • Design, implement and execute development and integration tests

Our requirements

  • Experience with reverse engineering and tools like IDA Free/Pro, Ghidra
  • Experience with Windows software development (e.g. C++)
  • Knowledge of Windows Server, Active Directory and GPO
  • Knowledge of Windows API
  • Knowledge of Kerberos and NTLM authentication protocols
  • Knowledge of Windows technical security standards and internal controls
  • Familiarity with VBA and PowerShell scripting
  • Ability to confidently communicate with peers
  • Knowledge of Polish or English language

Optional

  • Experience with Rest and/or C# programming language(s)
  • Experience with Qt development framework
  • Formal education and advanced degree in Information Security, Cybersecurity, Computer Science or similar and/or commensurate demonstrated work experience in the same
  • Knowledge of software application security
  • Demonstrated success as part of a distributed team

Division of working time

  • 100% Research

This is how we organize our work

Team size

10

This is how we work

  • in house
  • you focus on a single project at a time
  • you develop the code "from scratch"

Team members

  • backend developer

This is how we work on a project

  • code review
  • documentation
  • pen tests

Development opportunities we offer

  • industry-specific e-learning platforms
  • intracompany training
  • mentoring
  • space for experimenting
  • technical knowledge exchange within the company

What we offer

  • Location: 100% remote or office in Krakow, Zielona Gora
  • Technology Stack: C++, Windows Server, Active Directory, LDAP, Kerberos, NTLM, Entra ID, FIDO2
  • Self development: access to online training courses, sponsored certifications
  • Benefits for employees: access to private medical care and MultiSport card

Benefits

  • private medical care
  • sharing the costs of professional training & courses
  • remote work opportunities
  • integration events
  • no dress code
  • coffee / tea

Recruitment stages

  • Online meeting with recruiter
  • Small technical assignment
  • Final interview & offer

Why Apply

  • You love collaborating with, teaching, and learning from high-performing peers on software projects
  • You work best in teams of high-performers rallying around achieving a common goal

Steps After You Apply

  • You’ll be invited to an online meeting with our recruiter
  • Afterwards, we’ll ask you to do 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

RUBLON sp. z o.o.

Rublon serves over 500 customers from various industries in more than 50 countries across the world, primarily in Europe and North America. The company was founded in Poland in 2001 to process unpublished patent applications for the German government-owned Bundesdruckerei (Federal Press). Later, the company became a publisher of numerous successful online services targeted at international audiences. As a member of the Polish Astec Group since its inception, the company has always had software development in its DNA. While building a portfolio of business software solutions, Rublon launched Rublon MFA in 2018 and grew it into a leading workforce multi-factor authentication solution.

  • Praca Zielona Góra
  • Chief security officer Zielona Góra

    • Zielona Góra - Oferty pracy w okolicznych lokalizacjach

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