Principal Solution Architect – Defence & National Security

What you will be doing:

• Lead the design and delivery of secure enterprise and solution architectures for defence and national security clients.
• Shape innovative, IT-enabled solutions that respond to emerging client and sector needs.
• Provide solution leadership for short-term assessments, remediation activity, and complex customer initiatives.
• Build strong working relationships with clients, partners, and internal teams to support successful delivery.
• Contribute to business growth through pre‑sales support, market insight, and representation of Sopra Steria’s capabilities.
• Identify and manage risks, while sharing knowledge through mentoring, workshops, and collaboration.

• Experience as a Solution Lead, Enterprise Architect, or in a similar role within highly secure defence or national security environments.
• Strong understanding of defence customers, suppliers, and delivery contexts, including MOD and/or UKIC.
• Proven ability to design and lead complex solutions across COTS, custom, and enterprise‑scale environments.
• Expertise in architecture approaches and tools such as TOGAF, Archi Mate, and C4, with a secure‑by‑design mindset.
• Experience working in agile delivery environments, with knowledge of modern software delivery and Dev Sec Ops  practices.
• Confidence working with senior stakeholders, balancing strategic thinking with practical support to drive delivery success.

Employment Type:

Full‑time, Permanent

Location:

UK‑based, with travel required to client sites along the M4 corridor
Security Clearance Level: DV Clearance
Internal Recruiter:
Josh

Salary:
Competitive, based on experience
Benefits:
Car Allowance, Bonus, 25 days annual leave with the option to buy additional days, private health care, life assurance, pension, and generous flexible benefits fund (3% of base salary)