Java jobs in United Kingdom

Lead Technical Architect

Bristol, UK ● Bromley, UK ● Cheltenham, UK ● Croydon, UK Req #1104 09 May 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 seeking an experienced Technical Architect.

Role Location:

You can work from any of our 6 UK offices (including Bristol, Cheltenham & London) or from home; regular visits to our London team are required.

About the Role:

We seek a highly skilled Lead Technical Architect with expertise in cloud-based architectures. You will design, implement, and oversee advanced cloud infrastructure solutions for mission-critical systems, leveraging your knowledge of security architecture on cloud platforms to provide technical leadership 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, regulatory compliance (e.g., GDPR, HIPAA), and industry best practices (AWS IAM, encryption, VPC, monitoring, auditing).
3. Containerisation & Orchestration: Architect and oversee Kubernetes environments for high availability, scalability, and fault tolerance.
4. Event-Driven Systems: Lead the design of Kafka-based messaging frameworks for real-time data processing across distributed microservices.
5. Microservices Architecture: Oversee development of Java-based microservices, establishing best practices for modularity and scalability.
6. Technical Leadership: Provide mentorship and guidance to architecture and development teams.
7. Security & Compliance: Ensure architectures comply with industry regulations (GDPR, HIPAA) and security policies.
8. CI/CD & Automation: Promote CI/CD pipelines, infrastructure as code (Terraform, CloudFormation), and automation.
9. Stakeholder Collaboration: Work with DevOps, engineering, product management, and stakeholders to align architectural strategies.
10. Performance & Cost Optimization: Drive performance tuning, cost management, and resource optimization strategies.
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 and implementing large-scale cloud systems, especially AWS, with skills including:

• Extensive cloud security architecture knowledge (IAM, network security, encryption)
• Proficiency with Docker and Kubernetes
• Experience with Kafka and event-driven architectures
• Strong Java backend development background
• Knowledge of CI/CD, infrastructure as code (Terraform, CloudFormation)
• Excellent communication and leadership skills
• Experience with monitoring tools (Prometheus, Grafana, ELK Stack)
• Familiarity with serverless (AWS Lambda)
• Preferred AWS certifications (Solutions Architect, Security – Specialty)
• Understanding of architectural standards like TOGAF

Security Clearance: Due to industry requirements, the candidate must be a British citizen, have lived in the UK for the last 5 years, and be able to obtain high-level security clearance.

Why work for us?

IIG offers a culture akin to a small business within a larger organization, with competitive salary and benefits, including:

• Flexi-time
• Hybrid working
• Learning & Development budget
• Social events
• Matched pension and healthcare

We support career progression, innovation, and a diverse, inclusive environment.

Equal Opportunities:

CACI is committed to diversity and inclusion, providing reasonable adjustments during recruitment and supporting candidates with disabilities.

Other Details:

• Pay Type: Salary
• Locations: Bristol, Bromley, Cheltenham, Croydon