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Full Stack Developer – Sustainability Technology / Digital Learning. Remote – 20259
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Build Technology That Makes Sustainability Happen.
Code with purpose. Build products that educate thousands. Grow with a team that's shaping the future of sustainable business.
We're looking for a UK-based Full Stack Developer to help evolve our sustainability and digital learning platforms, building robust, scalable solutions that directly support thousands of learners across the construction and infrastructure sectors.
If you enjoy solving technical challenges, collaborating with talented product teams and working in an environment that embraces AI-assisted development, we'd love to hear from you.
The Role at a Glance
Full Stack Developer
- Remote Working - UK Based
- £70,000 - £80,000
- Plus Fantastic Benefits Including 8% Employer Pension Contribution, Mental Health Support, Fitness Allowance, Enhanced Family Leave, Volunteer Days & More
- Permanent | Full Time
Product / Service: Sustainability Consultancy, Learning Technology & Digital Platforms
Culture: Small, collaborative product team with direct access to decision makers, modern engineering practices and genuine opportunities to influence product direction.
Heads-Up: We really appreciate a short introductory cover note explaining why this opportunity caught your eye.
Who We Are
Action Sustainability is a leading sustainability consultancy helping organisations create lasting environmental and social impact.
Working with organisations including the NHS and Houses of Parliament, we combine expert consultancy, innovative technology and award-winning learning solutions to accelerate sustainable change across industries.
Our bespoke digital learning platforms support thousands of professionals every day, and our engineering team plays a central role in continuously improving those experiences.
We're an accredited Living Wage employer recognised by Best Companies as a "One to Watch", with a genuine commitment to wellbeing, professional development and creating an environment where people can do their best work.
About The Role
This is a hands-on development role where you'll help build, improve and maintain the technology powering our digital learning platforms.
Working as part of a close-knit product team, you'll contribute across the full development lifecycle, from building responsive user interfaces through to developing robust backend functionality and helping shape the future direction of our products.
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You'll work with modern technologies, collaborate closely with designers, product managers and stakeholders, and make extensive use of AI-assisted development tools to improve quality and productivity.
What You'll Be Working On
We believe developers should influence products, not simply complete tickets.
- You'll play an active role in delivering major roadmap projects across our customised Moodle learning platform, developing new functionality, improving user experience and helping thousands of learners access world-class sustainability education.
- You'll contribute ideas, solve meaningful technical challenges and work alongside a collaborative team that values innovation and continuous improvement.
Key Responsibilities
- Develop modern, responsive front-end experiences from detailed design specifications.
- Write clean, reusable and maintainable PHP and JavaScript code.
- Build and enhance functionality across our customised Moodle platform.
- Perform code reviews and contribute to engineering best practice.
- Support fellow developers through collaboration and knowledge sharing.
- Maintain high software quality through testing and continuous improvement.
- Write and maintain unit tests and Behat tests where appropriate.
- Work closely with designers, product managers and engineers throughout delivery.
- Participate in Agile ceremonies and collaborative planning sessions.
System Management & Support
- Troubleshoot application issues and optimise performance.
- Support scalability, reliability and maintainability across the platform.
- Ensure compliance with accessibility standards, GDPR and secure development practices.
- Contribute to quality assurance activities and maintain data integrity.
Continuous Improvement
- Help improve user experience through product enhancements.
- Introduce new ideas, tools and development approaches.
- Embrace AI-assisted development to improve productivity and code quality.
- Contribute to an engineering culture focused on continuous learning and improvement.
About You
You'll enjoy solving problems, building quality software and collaborating with people across technical and non-technical teams.
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You're equally comfortable developing front-end experiences and backend functionality, and you're motivated by creating products that deliver real-world impact.
You'll likely bring:
- Commercial experience as a Full Stack Developer within a professional software environment.
- Strong HTML5, CSS3, JavaScript and PHP development skills.
- Experience working with MySQL and/or PostgreSQL.
- Good understanding of Git version control.
- Strong analytical and problem-solving skills.
- Excellent communication and collaboration skills.
- Ability to manage multiple priorities within an Agile environment.
- Experience with Moodle would be advantageous but isn't essential.
- Interest in AI-assisted development and modern engineering practices.
Why Join Us?
You'll be joining a genuinely purpose-driven organisation where technology directly supports sustainability and education.
Alongside meaningful work, you'll enjoy:
- Competitive salary.
- Hybrid working.
- 8% employer pension contribution.
- Profit share scheme when company targets are achieved.
- Discretionary bonus.
- Fitness allowance.
- Enhanced maternity and paternity benefits.
- Volunteer days.
- Mental health and wellbeing support.
- Professional memberships and tailored development programmes.
- Modern Old Street office with café, lounge, gym and rooftop terrace.
Your Experience / Background / Previous Roles May Include
Full Stack Developer, PHP Developer, Web Developer, Software Developer, Moodle Developer, Backend Developer, Front End Developer, JavaScript Developer, Full Stack Engineer, Application Developer or Software Engineer.
Apply Now
If you're looking for a role where your work has genuine purpose, your ideas are valued and your development is actively supported, we'd love to hear from you.
Application notice... We take your privacy seriously. As you might expect you may be contacted by email, text or telephone. Your data is processed by our talent partner RR (Recruitment Revolution) on the basis of their legitimate interests in fulfilling the recruitment process. Please refer to their Data Privacy Policy & Notice on their website for further details.
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