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C++ Windows Security Researcher
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Offer summary

(Summary generated by AI based on the full job description)

Research and development project focused on Windows and Active Directory security. Work involves authentication protocols: Kerberos, NTLM, LDAP, SMB, MFA integration research and TPM/Bluetooth usage on Windows. Main technologies and tools include C++, Windows API, reverse engineering tools like IDA/Ghidra, PowerShell and VBA; C#, REST and Qt are advantageous. Responsibilities cover security research, developing Windows authentication solutions, requirements analysis, design, implementation, integration testing and code reviews.

newyou can start ASAP

C++ Windows Security Researcher

Company: RUBLON sp. z o.o.

from: 16 October 2026
to: 15 November 2026
14 000 - 20 000 złgross/ mth.contract of employment (full-time)
Salary details
basic salary
Offer parameters
level:mid
working mode:remote
Zielona Góra, Lubusz
Zielona Góra, LubuszStanisława Wyspiańskiego 11View on map

Requirements

Expected technologies

C++
Windows Server
Active Directory
PowerShell

Optional technologies

C#

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

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

About the project

We are looking for a long-term employee who will support us in the following area: R&D on Windows and Active Directory Security
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.

This is how we organize our work

This is how we work

in houseyou focus on a single project at a timeyou have influence on the choice of tools and technologiesyou have influence on the technological solutions appliedyou have influence on the productyou focus on product development

Team members

15 people:backend developerfullstack developermobile developertechnical leaderarchitectdevOpscybersecurity specialistsupportproduct ownerUI designerUX designersystem analystIT administrator

This is how we work on a project

  • code review
  • architect / technical leader support
  • Continuous Deployment
  • Continuous Integration
  • DevOps
  • team-level deployment
  • documentation
  • issue tracking tools
  • functional tests
  • integration tests
  • pen tests
  • performance tests
  • test automation
  • testing environments
  • unit tests
  • manual tests

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
Company

What we offer

  • 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

Development opportunities we offer

  • industry-specific e-learning platforms
  • intracompany training
  • space for experimenting
  • substantive support from technological leaders
  • technical knowledge exchange within the company

Benefits

  • private medical care
  • remote work opportunities
  • flexible working time
  • integration events
  • no dress code
  • coffee / tea

Recruitment stages

  • 1.
    online meeting with our recruiter
  • 2.
    a small assignment
  • 3.
    an offer and invite you to a final interview

RUBLON sp. z o.o.

Rublon Services provides consulting, custom software development, and cloud services. Since 1993, we’ve helped market leaders unlock their potential by delivering digital innovation across the automotive, energy, and telecommunications sectors. Our teams advise clients on innovation and design, build, maintain, and support compliant enterprise software solutions.

This is how we work

C++ Windows Security Researcher
14k–20k zł / mth. (CoE)
I apply to:
RUBLON sp. z o.o.
Zielona Góra, Lubusz
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