Senior Client-Side Application Architect

CACI Limited; United Kingdom; Hybrid; GBP 85,000 - 130,000; Full time

Benefits offered by this job

Hybrid working

Pension

Learning & development support

Job summary

CACI Limited is seeking an experienced Principal Application Architect to provide client-side architectural assurance, governance and oversight across complex programmes. The role ensures alignment to business objectives and architectural standards while advising on vendor designs and architectural strategy.

The successful candidate will lead assurance discussions, assess risks, and work with stakeholders across Product, Architecture, Suppliers and Delivery to ensure quality outcomes.

Qualifications

• Significant experience as an Application/ Solution/ Technical Architect in enterprise environments.
• Experience providing architecture assurance, governance and design reviews.
• Client-side architecting within supplier-led delivery models.
• Ability to review third-party designs and assure deliverables.
• Knowledge of integration patterns, APIs, SOA and data flows.
• Participation in architecture governance forums (e.g., Architecture Review Boards).
• Ability to assess risks, impacts and architectural trade-offs.
• Strong stakeholder management and communication.
• Experience with AWS-hosted, cloud-native architectures and security considerations.
• Experience in central government/public sector environments is advantageous.

Responsibilities

• Act as client-side lead for application architecture assurance activities.
• Review supplier architectures, designs and proposals for alignment with standards.
• Provide independent recommendations to governance bodies.
• Ensure solutions meet business objectives, security posture and operational needs.
• Identify risks and mitigations; document decisions traceably.
• Support architecture governance forums and design authority decisions.
• Assess scalability, resilience, and data flows in architectures.
• Review non-functional requirements including security and performance.
• Present findings to senior stakeholders and governance forums.

Skills

Architecture leadership

Governance & assurance

Java knowledge

API design

Cloud-native design

AWS

Security & risk management

Stakeholder management

Enterprise architecture

Review & assurance

Tools

Java

AWS

APIs

Architectural modelling

Job description

CACI Limited is seeking an experienced Principal Application Architect to provide client-side architectural assurance, governance and oversight across complex programmes. The role ensures alignment to business objectives and architectural standards while advising on vendor designs and architectural strategy.

The successful candidate will lead assurance discussions, assess risks, and work with stakeholders across Product, Architecture, Suppliers and Delivery to ensure quality outcomes.