AWS Solution Architect

CACI Ltd; Croydon; Hybrid; GBP 60,000 - 90,000; Full time

Job summary

CACI Ltd is seeking a Lead Technical Architect to design and oversee cloud infrastructure for mission-critical systems. The role requires expertise in AWS, cloud security, and team leadership. Candidates will benefit from a flexible working environment and support for professional development in a collaborative culture.

Benefits

Flexible working hours

Hybrid working options

Training and development budget

Regular team social events

Pension and health care packages

Qualifications

• Experience with AWS cloud-based architecture.
• Deep expertise in Docker and Kubernetes.
• Strong communication and mentoring abilities.

Responsibilities

• Lead design and implementation of cloud systems with AWS.
• Develop security architectures ensuring compliance and data protection.
• Mentor teams and guide architectural decisions.

Skills

Cloud Security Architecture

AWS Security Best Practices

Containerisation

Microservices Architecture

Leadership Skills

Education

AWS Certification

Tools

Docker

Kubernetes

Terraform

CloudFormation

Prometheus

Grafana

ELK Stack

Job description

AWS Solution 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 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, as you prefer. The role will require regular visits to our London team.

About the Role:

We seek an experienced Lead Technical Architect with expertise in cloud-based architectures to join our team. 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, compliance, and adherence to industry best practices (AWS IAM, encryption, VPC, security monitoring, auditing).
3. Containerisation & Orchestration: Architect and oversee containerised environments with Kubernetes for high availability and scalability.
4. Event-Driven Systems: Lead the design of event-driven systems with Kafka, managing messaging frameworks for real-time data processing.
5. Microservices Architecture: Oversee development of microservices-based systems, focusing on Java backend services.
6. Technical Leadership: Mentor teams, guiding complex technical challenges and architectural decisions.
7. Security & Compliance: Ensure architectures meet industry regulations (GDPR, HIPAA) and security policies, implementing necessary controls.
8. CI/CD & Automation: Promote CI/CD 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 Optimisation: Drive performance tuning, cost management, and resource optimisation.
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 designing and implementing large-scale, distributed cloud systems with a focus on AWS. Additional skills include:

• Extensive cloud security architecture knowledge, including AWS security best practices.
• Deep expertise with Docker and Kubernetes in production.
• Experience with event-driven architectures and Kafka.
• Background in microservices and Java backend development.
• Knowledge of CI/CD, infrastructure as code (Terraform, CloudFormation), and automated deployment.
• Strong communication and leadership skills, with mentoring abilities.
• Experience with monitoring tools (Prometheus, Grafana, ELK Stack) and cloud cost strategies.
• Familiarity with serverless architectures and AWS Lambda.
• AWS certifications (Solutions Architect, Security – Specialty) preferred.
• Understanding of architectural standards and frameworks such as TOGAF.

Security Clearance:

Due to the nature of our work, the successful candidate must obtain high-level security clearance. Applicants must be British citizens and have lived in the UK for the past 5 years.

Why work for us?

IIG offers a culture akin to a small business, with the benefits of a large organization. The Technical Architect role offers a competitive salary, benefits, and opportunities such as:

• Flexi-time: flexible working hours.
• Hybrid working: from home or office.
• Learning & Development: budget for training, conferences, and courses.
• Social events: regular team activities.
• Future benefits: pension and health care packages.

We support career development through external training, coaching, and internal guilds, fostering innovation and growth in an inclusive environment.

Equal Opportunities:

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

Other Details:

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