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Senior Technical Architect – National Security Programme

Job Posted: 12 days ago

Salary: £ 508 - 652 / Day
Job Type: Contract
Location: MK19, Tathall End, Milton Keynes

Expire in: 16 days

Job Description

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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