Lead Technical Architect

TN United Kingdom; Bromley; Hybrid; GBP 80,000 - 100,000; Full time

Job summary

A leading technical consultancy in the UK seeks a Lead Technical Architect to design and oversee cloud infrastructure solutions. The ideal candidate will have extensive experience with AWS, security architecture, and microservices. This role offers flexible working arrangements and a dynamic environment focused on innovation and career growth.

Benefits

Flexible Hours

Hybrid Working

Training Budgets

Social Events

Comprehensive Pension

Healthcare Package

Qualifications

• Experience in large-scale, distributed cloud systems, especially AWS.
• Ability to obtain high-level security clearance.

Responsibilities

• Lead the design of cloud solutions using AWS and microservices.
• Develop and implement security architectures ensuring data protection.
• Provide mentorship and guidance to teams on complex technical challenges.

Skills

Cloud Security Architecture

Containerisation

Event-Driven Architecture

Java-based Backend Systems

CI/CD Pipelines

Monitoring Tools

Serverless Architectures

TOGAF Architectural Standards

Education

AWS Certifications

Tools

Terraform

CloudFormation

Docker

Prometheus

Grafana

ELK Stack

Job description

Lead Technical Architect

Locations:

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 may 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 an experienced Lead Technical Architect with expertise in cloud architectures to design, implement, and oversee advanced cloud infrastructure solutions for mission-critical systems. Your deep knowledge of security architecture on cloud platforms will provide strategic 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 solutions 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, auditing).
3. Containerisation & Orchestration: Architect and oversee Kubernetes environments for 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: Design and oversee microservices-based systems, focusing on Java backend services.
6. Technical Leadership: Provide mentorship and guidance to teams on complex technical challenges.
7. Security & Compliance: Ensure architectures meet industry regulations (GDPR, HIPAA) and security policies.
8. CI/CD & Automation: Promote pipelines, infrastructure as code (Terraform, CloudFormation), and automation for reliable delivery.
9. Collaboration: Work with DevOps, engineering, product management, and stakeholders to align strategies.
10. Performance & Cost Optimization: Drive efficiency and cost-saving strategies.
11. Risk Management: Identify and mitigate technical risks.
12. Documentation & Best Practices: Maintain standards, design patterns, and documentation, recording architectural decisions.

The Fit:

Ideal candidates will have experience in large-scale, distributed cloud systems, especially AWS, with skills including:

• Cloud security architecture (IAM, network security, encryption)
• Containerisation (Docker) and Kubernetes
• Event-driven architecture and Kafka
• Java-based backend systems
• CI/CD pipelines and infrastructure as code (Terraform, CloudFormation)
• Monitoring tools (Prometheus, Grafana, ELK Stack)
• Serverless architectures (AWS Lambda)
• AWS certifications (Solutions Architect, Security – Specialty) preferred
• Knowledge of TOGAF architectural standards

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 dynamic, inclusive environment with benefits including flexible hours, hybrid working, training budgets, social events, and a comprehensive pension and healthcare package. Our culture fosters innovation, learning, and career growth.

Equal Opportunities:

CACI is committed to diversity and inclusion. We provide reasonable adjustments and support for candidates with disabilities and encourage applications from all backgrounds.

Other Details:

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