Full Stack Developer

CACI Ltd; Greater London; Hybrid; GBP 70,000 - 100,000; Full time

Job summary

CACI Ltd in London is seeking a Full Stack Developer to join a hybrid team delivering scalable web applications for diverse clients.

You will work with PHP/Laravel, front-end tech like React or Vue, and modern tooling. The role emphasizes clean coding, testing, code reviews and collaboration across disciplines to deliver robust software solutions.

Qualifications

• Commercial experience developing and maintaining web applications in a multidisciplinary team.
• Strong PHP and Laravel experience, APIs, databases and Laravel features (queues, events, tasks).
• Solid OOP understanding, SOLID principles, and writing maintainable code.
• Experience with automated tests using PHPUnit and/or Pest.
• Experience with modern front-end (React/Vue) and HTML/CSS.
• GIT usage, structured deployment processes, and CI/CD familiarity.
• Experience with AI tools in development, testing or research and responsible usage.
• Strong problem-solving and clear communication with technical/non-technical colleagues.

Responsibilities

• Collaborate with developers, testers, designers and PMs to deliver high-quality client solutions.
• Develop and maintain web applications using PHP/Laravel and modern front-end tech.
• Write clean, well-structured code following coding standards and best practices.
• Build and maintain automated tests to ensure quality and reliability.
• Investigate issues and propose effective solutions with teammates.
• Contribute to technical discussions and continue to grow your own skills.
• Break work into tasks, contribute to estimates and delivery planning.
• Participate in code reviews and improve practices through feedback.
• Attend client/project meetings and raise blockers clearly.
• Use AI-assisted tools judiciously for coding, debugging, testing, docs and research.

Tools

Docker

AWS

Azure

REST APIs

Git

CI/CD

React

Vue

HTML

CSS

Job description

Job Title: Full Stack Developer

Job Type: Permanent

Base Office: London

Working Structure: Hybrid

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 make a real impact. We work together to solve interesting technical challenges, continuously improve how we work and build software that we can be proud of.

We are looking for a Full Stack Developer to join our team and help deliver modern, scalable and maintainable web applications for a range of clients.

What You’ll Be Doing

In this role, you will:

• Work closely with developers, testers, designers and project managers to deliver high-quality solutions for a range of clients.
• Develop and maintain web applications using modern technologies, with a particular focus on PHP and Laravel.
• Write clean, well-structured and maintainable code, following agreed coding standards and best practices.
• Build and maintain automated tests to help ensure the quality and reliability of our applications.
• Investigate and resolve technical issues, working with colleagues to identify effective solutions.
• Participate in technical discussions, contributing ideas and recommendations while continuing to develop your own technical expertise.
• Break down development work into clear, manageable tasks and provide input into estimates and delivery planning.
• Work with QA and other developers to improve testing practices and increase automation where appropriate.
• Take part in code reviews, both reviewing colleagues' work and using feedback to continually improve your own.
• Participate in client and project meetings where required, communicating progress and raising technical issues or blockers clearly.
• Use AI-assisted development tools appropriately to support activities such as coding, debugging, testing, documentation and research.
• Apply good judgement when using AI-generated code, ensuring outputs are understood, reviewed, tested and meet appropriate security and quality standards before being used.

What We’re Looking For

Required Skills & Experience:

• Commercial experience developing and maintaining web applications as part of a multidisciplinary development team.
• Good experience with PHP and Laravel, including building APIs, working with databases and using common Laravel features such as queues, events and scheduled tasks.
• A solid understanding of object-oriented programming, including principles such as SOLID and writing maintainable, reusable code.
• Experience writing automated tests using tools such as PHPUnit and/or Pest.
• Experience with modern front-end development and JavaScript frameworks such as React, Vue or similar.
• A good understanding of HTML, CSS and responsive web development.
• Experience using Git and working within structured development and deployment processes.
• Familiarity with CI/CD pipelines and automated deployment practices.
• Strong problem-solving skills and the ability to investigate and resolve technical issues independently, while knowing when to seek support.
• Experience using AI tools to support software development, testing, documentation or technical research.
• An understanding of the importance of reviewing and validating AI-generated code, including considerations around quality, security, accuracy and maintainability.
• Good communication skills and the ability to work effectively with both technical and non-technical colleagues.

Nice to Have:

• Experience with Docker and containerised development environments.
• Knowledge of cloud platforms such as AWS, Azure or similar.
• Experience developing and consuming RESTful APIs.
• Experience with application performance optimisation, including database queries and efficient application code.
• Experience with modern JavaScript tooling and front-end build processes.
• An interest in emerging AI technologies and how they can be applied responsibly to improve software development and digital products.
• Experience with React Native or other mobile application development frameworks.

Equal Opportunities

CACI is proud to be an equal opportunities employer. Embracing the diversity of our people, we are on a journey to build a truly inclusive work environment where no one is treated less favourably due to ethnic origin, age, sex, gender identity, veteran status, religion or belief, sexual orientation, marital status, and disability or health condition, actively working to prevent discrimination.

As a Disability Confident employer, we will;

• Provide reasonable adjustments in the recruitment process where requested (contact a member of the recruitment team on 020 7602 6000 to discuss individual requirements further).
• Offer people with health conditions and disabilities, meeting the minimum criteria for a role, an interview.
• Our people are unique and we encourage, and support them, to be confident in contributing to our inclusion journey.