Salary: £35,000 - 35,000 per year Requirements: English proficiency and UK work authorisation 1–2 years commercial experience (or equivalent demonstrable experience/portfolio) in PHP/web development Working knowledge of PHP fundamentals Working knowledge of HTML, CSS3, and JavaScript Familiarity with relational databases (PostgreSQL/MySQL) Experience with Git Desirable: Exposure to Moodle or other LMS platforms Basic knowledge of Docker Experience using AI coding tools effectively Familiarity with WordPress Responsibilities: Support the build and maintenance of custom Moodle plugins, themes, and features (with guidance) Write clean, reusable PHP and contribute to modern, responsive UI work (HTML/CSS/JS) Assist with RESTful APIs and system integrations (implementing defined tasks) Fix bugs, improve existing code, and contribute to small-to-medium enhancements Write and maintain unit tests (and contribute to Behat tests where relevant) Participate in code reviews as a learner (receiving feedback and making improvements) Help troubleshoot issues and improve performance under supervision Follow best practices for accessibility, GDPR, and data protection (with support) Contribute to QA processes and data integrity checks Work within a cross-functional agile team (engineers, product designer, product manager) Communicate progress clearly and ask for help early when blocked Engage with stakeholders (e.g., Learning Technologists) mainly via your team lead Technologies: AI CSS Docker Git Support JavaScript MySQL PHP PostgreSQL Product Manager Web UX UI Design WordPress Fullstack More: We are Action Sustainability, a leading consultancy dedicated to inspiring sustainable business practices. Based in Old Street, London, our culture is close-knit and agile, characterized by a flat hierarchy that fosters direct communication with our directors and hiring managers. We offer a competitive salary of £35,000 along with fantastic benefits, including an 8% employer pension contribution, mental health support, a fitness allowance, enhanced maternity/paternity pay, and volunteer days. Our team of over 60 talented individuals is committed to driving lasting change in sustainability through innovative technology and expert advisory. Join us in making a meaningful impact across industries. last updated 7 week of 2026