Principal Architect – Secure Platforms

Help Shape the Future of Secure Computing

At Becrypt, we build secure platform technologies used in some of the UK's most demanding environments across defence, government and critical national infrastructure.

We are looking for a Principal Architect to shape the technical direction of our secure platform portfolio, spanning hardened Linux endpoints and Cross Domain solutions.

This is a senior individual contributor role for someone who enjoys getting into the detail of complex systems while making architectural decisions that shape products over the longer term. You won't be managing a large team; you'll influence through technical credibility, judgement and collaboration across engineering, product, security and customer-facing teams.

The Role

Working closely with the CTO, engineering leads and product management, you'll:

Shape the architecture and technical direction of new products and major initiatives. Make complex architectural decisions and help teams navigate technical trade-offs. Ensure security, assurance and maintainability are considered from the outset. Define and maintain reference architectures, principles and design patterns. Provide architectural input into complex customer deployments and integrations. Identify opportunities for shared platforms, services and tooling. Act as a technical escalation point for complex engineering and customer issues. Develop architectural capability across our senior engineering community.

This is a practical role. You'll go beyond architecture diagrams to understand how systems actually work, challenge assumptions, investigate problems and work with engineers to get to the right answer.

What You'll Bring

We're looking for someone who has operated successfully at Principal, Staff Engineer, Lead Architect or equivalent level in a technically complex environment.

You don't need experience across every technology below. We're particularly interested in deep systems and security expertise, with sufficient breadth to work across complex enterprise environments.

Strong experience in several of the following:

Systems and operating systems: OS architecture, systems engineering and platform security, ideally with significant Linux experience. Security architecture: threat modelling, security boundaries, attack surfaces, hardening and secure-by-design principles. Networking: TCP/IP, DNS, routing, segmentation, firewalls, TLS, VPNs and secure communications. Identity and trust: PKI, certificates, authentication and directory services. Enterprise infrastructure: complex Microsoft and/or Linux/open-source environments. Virtualisation and isolation: virtualisation architectures used for security, isolation and separation. Architecture leadership: making and communicating architectural decisions across multiple teams or products. Technical communication: explaining complex issues clearly to engineers, customers and senior stakeholders.