Digital Experience - Solution Architect in London

Headquartered in London, CACI Ltd is a wholly owned subsidiary of CACI International Inc., a publicly listed company on the NYSE with annual revenue in excess of US $6.2bn and employing approx. 22,000 people worldwide. CACI Ltd is an international data and technology consultancy with £154m turnover and 1200 employees. We are passionate, progressive and unafraid of challenge; our mission is to use technology and data‐driven insight to make a commercial difference. We provide expert advice and hands‐on system management to help our national and global clients get the most from technology and data. We use innovation wisely to deliver well thought‐out digital solutions and software.

CACI's Consumer & Market Intelligence and Experience & Transformation groups provide data, software and consulting services to improve our clients' sales and marketing programmes. We help clients find, retain and grow profitable customers through our understanding of consumer characteristics and behaviour. And we help commercial property developers and retailers plan retail provision in the UK and overseas. C&MI and E&T Groups help clients shape the vision, define the strategy and deliver a truly integrated customer experience. Our services are based on in‐depth understanding of individual consumer behaviour and marketing technology which influence the way consumers buy products and services through a combination of data, technology and consultancy.

About Us: We are a growing digital team working with a wide range of clients to build, scale, and maintain robust, high‐quality web applications. Our culture is collaborative, innovative, and focused on delivering solutions that truly make an impact.

What You'll Be Doing:

• Lead technical discovery and solution design for new and existing client projects.
• Design and oversee implementation of scalable web applications using modern frameworks and headless CMS architectures.
• Architect and integrate databases (SQL/NoSQL) and ensure optimal data flow between systems.
• Lead API integration projects, including RESTful and GraphQL endpoints, third‐party service connections, and custom middleware.
• Champion DevOps best practices, including CI/CD, automated testing, and infrastructure as code.
• Translate business requirements into well‐structured architectural plans, including data models, API integrations, and cloud infrastructure.
• Collaborate with full‐stack developers, DevOps engineers, and project managers to ensure technical alignment and successful delivery.
• Act as a trusted technical advisor to clients, communicating complex ideas clearly and with confidence. Internally, mentor development teams and drive technical best practices.
• Evaluate and recommend technologies, frameworks, and tools that align with project needs and long‐term maintainability.
• Support the pre‐sales process by providing technical input for proposals, estimates, and project scoping.

What We're Looking For:

• Proven experience designing and delivering technical solutions (audits, architecture design...) for web applications in a commercial environment.
• Hands‐on experience with headless CMS platforms (e.g., Contentful, Drupal, Sanity) and modern front‐end frameworks (e.g. Next.js, React, Laravel).
• Proficiency in designing and managing databases (e.g., PostgreSQL, MongoDB, MySQL) and data modelling.
• Demonstrated ability to architect and implement secure authentication (SSO), scalable API integrations and data management workflows.
• Deep understanding of DevOps tooling (Docker, Kubernetes, Terraform), with CI/CD pipelines and cloud‐native deployment strategies (AWS, Azure).
• Strong grasp of ISO27001 relating to security, scalability, and performance optimisation principles.
• Ability to communicate effectively with both technical and non‐technical stakeholders.
• Skilled in creating technical documentation, diagrams, and architecture blueprints.

• Knowledge of event‐driven systems, microservices, or serverless architectures.
• Exposure to Agile delivery and multidisciplinary team collaboration.
• Experience mentoring or providing technical leadership to development teams.

Why Join Us?

• Hybrid flexibility – work from home, our Kensington Village office, or client sites when needed.
• Impactful work – you'll have direct input into architecture decisions and development standards.
• Professional growth – opportunities to mentor others, lead initiatives, and shape the team's best practices.
• Collaborative culture – work with a supportive, experienced team who value clean code and continuous improvement.

We are committed to creating a diverse environment and are proud to be an equal‐opportunity employer. All qualified applicants will receive consideration for employment without regard to race, colour, religion, gender, gender identity or expression, sexual orientation, national origin, genetics, disability, age, or veteran status. Successful candidates must have the right to work in the UK.