Senior macOS Developer (Cyber Security)

Join Rublon to work with a team of cybersecurity enthusiasts who are building the future of enterprise user authentication. Rublon is a multi-factor authentication platform used by hundreds of customers across the globe to protect employee logins to networks, servers and applications. Rublon is a sister company of Astec IT Services.

Astec IT Services provides consulting, custom software development and cloud services. We have helped market leaders to unlock their potential by delivering digital innovation in the automotive, energy and telecom sectors since 1993. Astec teams are hired to advise clients on innovation and to design, build, maintain and support compliant enterprise software solutions.

We are looking for a long-term employee or contractor who will support ongoing development efforts in the following project:

Development of Rublon authorization plug-in for macOS

The Rublon for macOS connector will be an authorization plug-in that allows our customers to enable multi-factor authentication (MFA) for user access on macOS endpoints. This is a greenfield project that will benefit from our internal know-how used to build the Rublon for Windows Logon & RDP connector.

How You’ll Work

• Location: 100% remote or office in Krakow, Poznan, Warsaw, Wroclaw, Zielona Gora
• Technology Stack: macOS, Objective-C, C++, Qt 6, Kerberos, Active Directory, Entra ID, FIDO2
• Team: 8 Developers, 1 Tech Lead, 1 Technical Writer, 1 Product Manager
• Language: Polish or English for communication with team members; English for project documentation and commit comments
• Hardware: modern laptop
• Self development: access to online training courses, sponsored certifications
• Benefits for employees: access to private medical care and MultiSport card

What You’ll Do

As a Senior macOS Developer on the Rublon team you will help develop enterprise cloud software for modern user authentication:

• Development of the Rublon for macOS connector
• Build a macOS authorization plug-in from scratch (greenfield project)
• Enable native compatibility for FIDO2 Security Key authentication
• Enable authentication with Active Directory and Entra ID identities
• Enable offline multi-factor authentication
• Enable compatibility with Kerberos Single Sign-on
• Enable MFA for administrative actions
• Develop enterprise software solutions for macOS 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 product manager
• Monitor code quality and perform code reviews
• Design, implement and execute development and integration tests

Skills You Have

• Experience with macOS software development (Objective-C, C++)
• Knowledge about macOS enterprise identity and authentication concepts
• Ability to confidently communicate with peers
• You speak Polish or English fluently

Nice To Haves

• Experience of macOS Authentication Services framework, including Extensible Enterprise SSO
• Knowledge of Active Directory and Entra ID
• Knowledge of Windows API
• Experience with Qt software development
• Knowledge of software application security
• Demonstrated success as part of a distributed team
• Good knowledge of English language (level B2 or better)

Why Apply

• You want to work on software that makes the web a safer place
• You love collaborating with, teaching, and learning from high-performing peers on software projects

Steps After You Apply

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