Senior Technical Architect

We're supporting a major UK government organisation delivering critical national security capabilities and are seeking an experienced Senior Technical Architect to join a high-profile, secure programme.

This role sits at the heart of a complex technology landscape, working closely with senior stakeholders, customers, and delivery teams to design and govern secure, resilient solutions.

The Role

You will:

• Work directly with key customers to deliver a mission-critical national security product
• Translate business requirements into secure, scalable technical solutions
• Lead technical workshops with stakeholders and customers
• Provide senior technical oversight and 4th-line support to engineering teams
• Produce and maintain high-level and low-level technical designs
• Assess the impact of functional, capability, and security changes
• Review and approve technical change requests in line with architectural standards
• Support CTO-level governance and assurance activities
• Evaluate emerging technologies and articulate options, risks, and cost benefits

• Excellent stakeholder engagement skills with the ability to communicate complex technical concepts clearly

• Proven experience as a Technical / Solution / Infrastructure Architect within secure environments

• Strong technical background across:

• Microsoft & Linux server environments

• Networking technologies

• Hybrid cloud architectures

• VMware platforms (VCD, vSAN, NSX)

• Gateways, PKI, and email platforms

• SASE architectures

• Cisco and Palo Alto technologies

Experience producing architectural documentation (options assessments, HLDs, LLDs)

DevSecOps experience, including CI/CD and automation

Cloud design and migration experience (Azure/M365 and AWS)

Solid understanding of UK government security frameworks (NCSC, GDS, NIST, CIS, Cyber Essentials)

Experience with security tooling, auditing, and compliance

Desirable

• Experience working in matrixed or complex organisational structures
• Infrastructure as Code (IaC), containerisation, and microservices

Constraints:

Candidates submitted for this role must be British nationals, to confirm:

·They are a British citizen or hold dual nationality, and

·They have been a resident in the UK for at least two of the last 5 years