Senior Technical Architect – National Security Programme

Solos Consultants
Tathall End, Buckinghamshire, United Kingdom
Last week
£508 – £652 pd

Salary

£508 – £652 pd

Job Type
Contract
Work Pattern
Flexible
Work Location
Hybrid
Seniority
Senior
Education
Degree
Security Clearance
Required
Posted
20 Apr 2026 (Last week)

Benefits

On-call rota with additional flat-rate payments Standard working week of 37.5–48 hours

Senior Technical Architect – National Security Programme

📍 Milton Keynes (Hybrid – 60% onsite)

💰 £508.77/day PAYE or £652.82/day Umbrella

📅 6 Month Contract (Potential Extension)

🔒 SC Clearance Eligible Required

A leading government-focused organisation is seeking a Senior Technical Architect to support the delivery of critical national security capabilities. This is a high-impact role working at the intersection of architecture, engineering, and secure government operations.

The Role

You’ll play a key role in shaping and delivering secure technical solutions within a complex, high-assurance environment. Acting as a bridge between stakeholders and technical teams, you’ll ensure solutions are robust, compliant, and aligned with strategic objectives.

Key Responsibilities

* Lead technical engagement with stakeholders, translating business needs into scalable solutions

* Facilitate and run technical workshops with customers and delivery teams

* Produce and maintain high- and low-level technical designs

* Provide 4th line technical oversight and support for complex issues

* Conduct impact assessments across functional, capability, and security domains

* Review and govern technical changes, ensuring alignment with standards and best practices

* Contribute to architectural governance and support wider CTO function activities

* Evaluate emerging technologies and present options, including cost/benefit analysis

* Required Experience

* Strong background in technical architecture within secure or government environments

* Experience working with enterprise infrastructure and virtualised platforms

* Solid knowledge of:

* Microsoft and Linux operating systems

* VMware stack (vCloud Director, vSAN, NSX)

* Network technologies and secure architectures (e.g. SASE)

* High-grade encryption technologies

* Proven experience producing architectural documentation (HLDs, LLDs, options papers)

* Strong understanding of security frameworks (e.g. NCSC, NIST, CIS, Cyber Essentials)

* Experience managing and owning technical requirements

* Excellent stakeholder engagement and communication skills

Desirable

* Experience in matrix organisations

* Exposure to Infrastructure as Code, containerisation, and microservices

* Working Arrangements

* Hybrid model: minimum 60% onsite in Hanslope Park

* Standard working week: 37.5–48 hours

* Participation in an on-call rota (additional flat-rate payments apply)

Additional Information

* Candidates must be British nationals and eligible for SC clearance

* This role falls inside IR35

* Travel within Milton Keynes/London is expected within the day rate

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