Lead Technical Architect
Bristol, UK ● Bromley, UK ● Cheltenham, UK ● Croydon, UK Req #1104 08 July 2025
About us:
We are the Information Intelligence Group (IIG) of CACI UK, a specialist technical consultancy providing bespoke solutions to solve complex operational problems. Due to growth within our Central Government business, we are interested in speaking with an experienced Technical Architect.
Role Location:
You can work from any of our 6 UK offices (including Bristol, Cheltenham, London) or from home. The role requires regular visits to our London team.
About the Role:
We seek an experienced Lead Technical Architect with cloud expertise to design, implement, and oversee advanced cloud infrastructure solutions for mission-critical systems. Your deep knowledge of security architecture on cloud platforms will guide strategic decisions in building scalable, secure, and resilient cloud-native systems based on AWS, Kubernetes, Kafka, microservices, Java, and event-driven design.
Key Responsibilities:
1. Cloud Architecture Design: Lead the design of cloud-based systems using AWS, microservices, event-driven architectures, and serverless computing to meet business needs.
2. Cloud Security: Develop and implement security architectures ensuring data protection, compliance, and industry best practices (AWS IAM, encryption, VPC, monitoring).
3. Containerisation & Orchestration: Architect and oversee Kubernetes environments ensuring high availability and scalability.
4. Event-Driven Systems: Lead the design of systems using Kafka for real-time data processing across microservices.
5. Microservices Architecture: Oversee development of Java-based microservices, establishing best practices for modularity and maintainability.
6. Technical Leadership: Provide mentorship and guidance to teams on complex technical challenges.
7. Security & Compliance: Ensure architectures comply with regulations like GDPR and HIPAA, and implement security controls.
8. CI/CD & Automation: Promote pipelines, infrastructure as code (Terraform, CloudFormation), and automation for reliable delivery.
9. Stakeholder Collaboration: Work with DevOps, engineering, product management to align strategies.
10. Performance & Cost Optimization: Drive strategies to maximize efficiency and reduce cloud spend.
11. Risk Management: Identify and mitigate technical risks.
12. Documentation & Standards: Maintain architectural standards, design patterns, and documentation.
The Fit:
Ideal candidates will have experience in designing large-scale cloud systems, especially with AWS, containerisation (Docker, Kubernetes), Kafka, Java, CI/CD, and cloud security. AWS certifications and familiarity with TOGAF are preferred.
Applicants must be British citizens, have lived in the UK for the past 5 years, and be able to obtain high-level security clearance.
Why work for us?
We offer a flexible, inclusive environment with benefits including flexi-time, hybrid working, training budgets, social events, pension, and health care. Our culture promotes career development, innovation, and employee well-being.
Equal Opportunities:
CACI is committed to diversity and inclusion. We provide reasonable adjustments during recruitment and support our employees' unique contributions.
Other Details:
* Salary
* Locations: Bristol, Bromley, Cheltenham, Croydon
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