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- Tasks: Own and develop impactful software solutions for a greener future.
- Company: Join Heat Geek, a leader in low-carbon heating technology.
- Benefits: Enjoy competitive salary, shares, health insurance, and a vibrant work culture.
- Other info: Hybrid role in a dynamic climate tech hub with great team spirit.
- Why this job: Make a real difference in tackling climate change while advancing your career.
- Qualifications: Senior fullstack development experience with strong coding skills required.
The predicted salary is between 60000 - 80000 ÂŁ per year.
At Heat Geek, we are tackling one of the UK’s biggest carbon contributors: home heating. 20% of all UK carbon emissions stems from home heating – and that contribution is even bigger on a global scale. By simplifying a traditionally complex industry and revolutionising the technology used by installers, we’re making low‑carbon heating mainstream. We are on track to prevent 1,000,000 kg of carbon from entering our atmosphere in Q1 of 2026.
People are at the core of who we are and what we do. From decreasing homeowners’ energy bills to help with the cost of living, to empowering talented heating engineers to perform outstanding installations, to ensuring a greener world for all of us, we believe in the power of what we can all do together. We need passionate, talented, hard working people to be a part of this journey.
Our Heat Geek community is excited to bring a Senior Fullstack Developer into the team — a role that’s critical to how we grow and scale our platform. This is your chance to own meaningful product areas end-to-end, working across frontend, backend, and infrastructure to ship software that actually runs, helps users, and makes an impact. If you love the idea of steering real product decisions, getting stuck into code, and balancing technical quality with commercial pragmatism, this role is for you.
- Own features and systems end-to-end, from discovery through to production and iteration
- Build, maintain, and improve production‑ready frontend and backend systems
- Work hands‑on in the codebase — this is a coding‑first role
- Collaborate closely with the existing Product and Tech teams to solve real user problems
- Quickly pick up new concepts, technologies, and domain knowledge when needed
- Contribute to technical direction and raise the quality bar of the entire team’s output through example, not ceremony
- Help ensure the platform runs, scales, and supports Heat Geek’s mission as we grow
Candidate Requirements:
- Senior‑level experience as a fullstack developer, with strong hands‑on coding ability
- Proven ability to ship and maintain production software
- Demonstrated pragmatism — you know when to refactor, when to ship, and when to leave things alone
- Quick learner who can pick up new concepts and technologies efficiently
- Strong ownership mindset — you don’t wait to be told what to fix
- Clear communication skills and collaboration mentality
It’s a bonus if you have:
- Experience with Django
- Real comfort across the full stack, happily spending time in both the frontend and backend
- Experience with cloud/infrastructure, ideally GCP
- Industry experience in renewable energy, heat pumps, utilities, or construction
- Been in product‑focused engineering environments
- Worked in a startup or scale‑up environment
We believe great teams are built from different ways of thinking, learning, and living, and as such, we strive to build an organisation where people can show up as themselves. Even if you don’t tick every box listed above, but are passionate about the work that we are doing and believe that you can make a positive impact here, we’d love to hear from you.
This is a 3‑day‑in‑the‑office hybrid role where you will work with the team at our office in Sustainable Ventures in Waterloo, Europe’s biggest climate tech hub. It’s a 5‑minute walk from Waterloo Station and an energising space for anyone working on climate change.
Some of our measurable benefits include:
- ÂŁ5,000 contribution towards your own heat pump installation
- Shares in the company, allocated under a tax‑incentivised scheme
- Salary that’s evaluated regularly, based on skills, impact, and role scope—not negotiation tactics
- Private medical & dental insurance
- Learning and development budget
- Annual summer retreat
- Season ticket loan
- Cycle to work scheme
- Yoga, run club and social events with other sustainability startups in our co‑working space
- Monthly socials and regular collaboration opportunities with a team that’s passionate, hardworking, and kind
By submitting your application, you agree that Heat Geek may process your personal data for recruitment purposes in accordance with UK GDPR. If your application is unsuccessful, we may retain your data in our applicant tracking system for up to six months after the role closes to consider you for future opportunities. Your data will be handled in accordance with GDPR data protection laws.
Senior Fullstack Developer London, United Kingdom employer: Heat Geek Ltd
Contact Detail:
Heat Geek Ltd Recruiting Team
StudySmarter Expert Advice 🤫
We think this is how you could land Senior Fullstack Developer London, United Kingdom
✨Tip Number 1
Network like a pro! Reach out to folks in the industry, attend meetups, and connect with people on LinkedIn. You never know who might have the inside scoop on job openings or can refer you directly.
✨Tip Number 2
Show off your skills! Create a portfolio showcasing your projects, especially those that align with Heat Geek's mission. This will give potential employers a taste of what you can do and how you can contribute.
✨Tip Number 3
Prepare for interviews by practising common questions and coding challenges. Make sure you can articulate your thought process clearly, as collaboration is key in a team environment like Heat Geek.
✨Tip Number 4
Apply through our website! It’s the best way to ensure your application gets seen. Plus, it shows you’re genuinely interested in being part of our mission to tackle carbon emissions.
We think you need these skills to ace Senior Fullstack Developer London, United Kingdom
Some tips for your application 🫡
Be Yourself: We want to see the real you in your application! Don’t be afraid to show your personality and passion for what we do at Heat Geek. Let us know why you’re excited about tackling carbon emissions and how you can contribute to our mission.
Tailor Your Application: Make sure to customise your CV and cover letter to highlight your experience as a fullstack developer. Focus on the skills and projects that align with our needs, especially your hands-on coding ability and any relevant industry experience.
Showcase Your Impact: When detailing your past work, emphasise the impact you’ve made in previous roles. We love candidates who can demonstrate how their contributions have led to tangible results, whether it’s improving systems or enhancing user experiences.
Apply Through Our Website: We encourage you to apply directly through our website. It’s the best way for us to receive your application and ensures you’re considered for this exciting opportunity to join our team at Heat Geek!
How to prepare for a job interview at Heat Geek Ltd
✨Know Your Tech Stack
Make sure you’re well-versed in the technologies mentioned in the job description, especially Django and cloud infrastructure. Brush up on your full stack skills, as you'll need to demonstrate your hands-on coding ability during the interview.
✨Show Your Passion for Sustainability
Heat Geek is all about making a positive impact on the environment. Be prepared to discuss why you're passionate about renewable energy and how your work can contribute to reducing carbon emissions. This will show that you align with their mission.
✨Prepare Real-World Examples
Think of specific projects where you've owned features end-to-end or solved complex user problems. Be ready to share these experiences, highlighting your ownership mindset and collaboration skills, as these are key traits they’re looking for.
✨Ask Insightful Questions
Prepare thoughtful questions about the team dynamics, product direction, and how they measure success. This not only shows your interest in the role but also helps you gauge if Heat Geek is the right fit for you.