Solution Architect x2 – 15366

Comxps Ltd; United Kingdom; Remote; GBP 129,000 - 185,000; Full time

Job summary

Comxps Ltd seeks an experienced Solution Architect for a government-aligned program in Wiltshire, four days on site per week. The role delivers enterprise-scale secure information systems, promoting interoperability across domains and robust documentation.

You will guide design, build, testing and handover with engineering teams, producing HLDs/LLDs and architectural decisions, while navigating regulated environments and stakeholder expectations.

Qualifications

• 5+ years in solution architecture delivering complex infrastructure or secure information systems in the last 5 years.
• Experience designing and delivering enterprise-scale technical solutions end-to-end.
• Strong ability to produce and maintain HLDs/LLDs and architectural decisions.
• Understanding of enterprise architecture principles and frameworks.
• Experience in Defence or government or other regulated environments.
• Knowledge of interoperability, federation concepts and information sharing.
• Architectures that enable cross-domain information exchange.
• Familiarity with data-centric security, policy-based controls and auditability.
• Experience with IAM/FIAM/RBAC models and PKI concepts.
• Ability to communicate with technical teams and senior leadership.

Responsibilities

• Design and deliver secure architectural solutions from concept to implementation.
• Collaborate with engineering teams through design, build, integration, testing and handover.
• Produce and maintain HLDs, LLDs, and architectural decision records.
• Ensure compliance with interoperability, security and regulatory requirements.
• Engage stakeholders and communicate technical concepts to senior leaders.

Skills

Solution architecture

Enterprise architecture

HLD/LLD documentation

Security architecture

IAM/FIAM/RBAC

PKI and cryptography

Interoperability architectures

Defence/government domain

Stakeholder engagement

Technical risk assessment

Regulated environments

Job description

Salary: £Please provide competitive rate

Location: Wiltshire - 4 days on site per week

Contracting Authority: Government Client
Contract Length: 01/10/2026 – 31/03/2028 (A total of 318days based on this start date. 108days until 31/03/2027 and 210days from 01/04/2027 – 31/03/2028)
Clearance: SC/DV

Essential Skills, Qualifications, and Experience

• At least 5 years demonstrable experience in Solution Architecture roles delivering complex infrastructure, networking, interoperability, or secure information systems within the last 5 years.
• Demonstrable experience designing and delivering enterprise-scale technical solutions from concept through implementation and transition.
• Strong experience producing and maintaining High-Level Designs (HLDs), Low-Level Designs (LLDs), architectural decision records, and supporting technical documentation.
• Detailed understanding of enterprise and solution architecture principles and frameworks.
• Experience designing secure solutions within Defence, Government or other regulated environments.
• Strong understanding of interoperability architectures, federation concepts, and coalition information-sharing requirements.
• Experience developing architectures that support information exchange across multiple security domains.
• Knowledge of Data Centric Security principles, policy-based information control, metadata-based handling controls, and auditability requirements.
• Experience with Identity and Access Management (IAM), Federated Identity and Access Management (FIAM), and Role-Based Access Control (RBAC) models.
• Strong understanding of Public Key Infrastructure (PKI), digital certificates, certificate trust chains, and associated cryptographic principles.
• Experience conducting architecture assessments, technical risk assessments, and technology evaluations.
• Experience working with engineering teams through design, build, integration, testing, and operational handover phases.
• Excellent communication and stakeholder engagement skills, with the ability to communicate effectively at both technical and senior leadership levels.
• Experience delivering against challenging timescales within large and complex organisations.
• Competency in MS Office Suite.

Our dedicated team would be pleased to discuss in more detail how we may be able to help