Windows Engineer

Windows Engineer | Remote first | Up to £95k

I’m working with a technology business looking for a Windows Engineer to help develop a new product within the identity and security space.

This is a highly technical role focused on Windows development, cryptography and authentication, with the opportunity to influence architecture and build secure identity solutions from the ground up.

What you'll be doing:

• Provide implementation and architectural guidance for the development of a new identity product.
• Design, develop and maintain a Windows SDK to support secure identity and authentication capabilities.
• Build Windows authentication solutions integrating biometric liveness technology.
• Develop certificate-based authentication mechanisms through Windows Login.
• Work with Windows security frameworks to deliver robust and reliable authentication experiences.
• Implement secure authentication mechanisms using PKI and cryptographic principles.
• Contribute to architectural decisions around Windows integration, identity management and security.
• Work closely with engineering and product teams to translate requirements into secure, production-ready software.
• Investigate and resolve complex technical challenges across Windows components and authentication workflows.
• Support the delivery, installation and deployment of low-level Windows components.
• Help establish effective development and CI/CD practices for security-critical software.

What they're looking for:

• Strong understanding of PKI and cryptography.
• Commercial experience with C++17 or C++20.
• Experience with Microsoft Entra ID and Intune.
• Experience developing and working with Windows installers.
• Strong communication skills and the ability to collaborate with technical and non-technical stakeholders.

Nice to have:

• Experience with Windows Credential Provider, WinRT or Key Storage Provider.
• C#/.NET experience.
• Experience with WinUI.
• CI/CD experience for low-level components.
• An interest in IoT and cryptography-related technologies.
• Experience working on identity, authentication or security-focused products.

What's on offer:

• Competitive salary, dependent on experience.
• Growth shares following successful completion of probation.
• Flexible remote first working.
• 25 days annual leave plus 8 bank holidays, with additional leave based on length of service.
• Private healthcare, including dental and optical cover.
• Pension contributions of 5% employee and 3% employer.
• Life assurance and enhanced family leave.
• Personal training budgets and access to an award-winning learning and development platform.
• One-to-one career coaching.
• Salary sacrifice schemes, including electric cars and cycle to work.
• The opportunity to work overseas for up to two weeks per year.
• Additional fitness, wellbeing and lifestyle benefits.

If you're a Windows engineer with experience in C++ development and cryptography, and you're interested in working on secure authentication technology, please click apply or drop me a message to find out more.