C++ Windows Security Researcher

Join Rublon to work with a team of cybersecurity enthusiasts who are building the future of enterprise user authentication. Rublon MFA is a multi-factor authentication platform used by hundreds of customers across the globe to protect employee logins to networks, servers and applications.We are looking for a long-term employee who will support us in the following area:R&D on Windows and Active Directory SecurityRublon’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.How You’ll WorkLocation: 100% remote or office in Krakow, Zielona GoraTechnology Stack: C++, Windows Server, Active Directory, LDAP, Kerberos, NTLM, Entra ID, FIDO2Self development: access to online training courses, sponsored certificationsBenefits for employees: access to private medical care and MultiSport cardWhat You’ll DoAs a C++ Windows Security Engineer on the Rublon team you will help develop software for modern user authentication:Perform security research on authentication protocols (LDAP, Kerberos, NTLM, SMB)Research on Windows and Windows Server securityResearch on MFA integration possibilities with Windows and Windows ServerResearch on Active Directory securityResearch on Kerberos and NTLM authentication protocol securityResearch on MFA integration possibilities with Active DirectoryResearch on usage of Trusted Platform Module (TPM) on Windows for secure user authenticationResearch on usage of Bluetooth on Windows for secure user authenticationDevelop enterprise software solutions for Windows user authenticationDevelopment takes place locally on your company laptop as well as on external testing environmentsAnalyze requirements, create concepts and discuss them with the project and product managerMonitor code quality and perform code reviewsDesign, implement and execute development and integration testsSkills You HaveExperience with reverse engineering and tools like IDA Free/Pro, GhidraExperience with Windows software development (e.g. C++)Knowledge of Windows Server, Active Directory and GPOKnowledge of Windows APIKnowledge of Kerberos and NTLM authentication protocolsKnowledge of Windows technical security standards and internal controlsFamiliarity with VBA and PowerShell scriptingAbility to confidently communicate with peersKnowledge of Polish or English languageNice To HavesExperience with Rest and/or C# programming language(s)Experience with Qt development frameworkFormal education and advanced degree in Information Security, Cybersecurity, Computer Science or similar and/or commensurate demonstrated work experience in the sameKnowledge of software application securityDemonstrated success as part of a distributed teamWhy ApplyYou love collaborating with, teaching, and learning from high-performing peers on software projectsYou work best in teams of high-performers rallying around achieving a common goalSteps After You ApplyYou’ll be invited to an online meeting with our recruiterAfterwards, we’ll ask you to do a small assignment, which will then be discussed with one of our technical leadsIf everything goes well, we will make you an offer and invite you to a final interview