Senior Full-stack Engineer, Sunsave
More information about location
The UK’s first solar subscription
Be an early applicant
The UK’s first solar subscription
21-100 employees
Be an early applicant
More information about location
21-100 employees
Company mission
To make the power of solar accessible to all UK households.
Role
Who you are
- An experienced programmer with working knowledge of some of our key technologies - TypeScript, React, Node.js, Postgres, Docker, AWS. You do not need to know any of these provided you are keen to learn!
- Curious, honest and humble; you ask questions, are open to new ideas and learn from mistakes.
- Eager to own features from early discovery through to final delivery, and to shape how we build things as we grow.
- Comfortable working in a small team with a bias toward shipping useful, not perfect solutions.
Desirable
- Experience at an early-stage, fast-growing start-up
- An interest in the energy sector and the transition to green energy!
What the job involves
- Building Sunsave products using a modern technology stack
- Integrating with solar, battery, finance, and energy APIs to make a complex product simple for our customers
- Designing technical solutions and owning delivery of them
- Helping define and improve engineering practices as we scale — from testing and CI to monitoring and alerting
- Using data to guide product and engineering decisions, focusing on impact, not just output
Application process
- Stage 1: Intro Call (~30 mins)
- Stage 2: Technical test, shared in advance (~1-2 hours)
- Stage 3: Pairing & system design session (~1 hour 30 mins)
- Stage 4: Culture & Fit (~1 hour)
Salary benchmarks
Our take
Sunsave, founded in 2022, is on a mission to make the power of solar accessible to every household in the UK. They're the first (and as of 2025 the only) company in the UK to offer an FCA-authorised solar subscription service - a model that's been very successful in places like Germany and the US.
70% of people in the UK are interested in solar, and Sunsave's model removes the biggest barrier to adoption - the ~£10k typical upfront cost and long payback period - so customers can save on their energy bills from day one. They offer an all-in-one subscription that includes finance, installation, monitoring and maintenance, really helping customers get the most out of their systems
Already, the company has attracted the attention of blue-chip VC funds such as Norrsken, IPGL, the UK Department of Energy, and household name entrepreneurs, including Michael Spencer and Stuart Rose. Alongside this, they raised a £13M Series A in July 2025, alongside a £100M debt facility to scale their subscription model.
They plan to also expand into complementary products like EV chargers and heat pumps, alongside tariff optimisation and energy insight software. The eventual aim is to build the company's first decentralised home energy platform and revolutionise households' relationship with energy.
Steph
Company Specialist at Welcome to the Jungle
Insights
Company
Employee endorsements
Challenging work
"Even though everyone is so experienced, building a new business from scratch comes with lots of brand new challenges, especially one that's so..."
Funding (last 2 of 3 rounds)
Jul 2025
$17.4m
SERIES A
Dec 2023
$7.3m
SEED
Total funding: $31m
Company benefits
- Private health insurance
- Mental health support
- Flexible working hours
- Monthly wellness budget (Juno)
- Enhanced maternity and paternity leave
- Team social events (remote & live)
- 25 days holiday (excl. bank holidays) + extra holidays for long service
- Laptop
- Fortnightly company social events
- Quarterly team social outing
- Quarterly women's dinner/social
- Remote working home office budget
- Cycle to work scheme
- Electric car salary sacrifice scheme
Company values
- We're changing how people power their lives: We know that only doing what’s familiar or easy isn’t going to get us there, so we’re unashamedly ambitious and set audacious goals. We’re excited by the hard problems that come with accomplishing something difficult, and we do whatever it takes to get closer to achieving our mission
- We start with the customer: We’re here to help real people, so their voices are at the centre of everything we do. We know that we can’t create a hugely successful business without building things that people really love. So everything we do starts with us asking: ‘What’s best for the customer?’
- We make it happen: We act with urgency, constantly prioritising to make sure we channel our energy into what matters most. We believe every problem has a solution, and we take ownership to figure it out. When we don’t have perfect information it doesn’t slow us down: we act, learn and adapt
- We drive each other to be exceptional: We’re one team, made stronger by supporting each other, sharing openly, and holding ourselves and each other to the highest standards. We prize honest constructive feedback, and we value fresh perspectives and respectful differences of opinion. We win, lose and learn together, and don’t let silos or egos get in the way
Company HQ
Soho, London, UK
Articles
Leadership
Alick Dru
(Co-Founder)Ex VC Investor at SoftBank Vision Fund, ex Strategy Consultant at Strategy&, ex Founder at Spires, ex Founder at Tripr. Ex Oxford University.
Ben Graves
(Co-Founder)Ex PE Investor at EMK, ex Strategy Consultant at BCG, ex Customer Success at Triptease. Ex Oxford University.
Diversity, Equity & Inclusion at Sunsave
- One of our core values as a young start up is that there's strength in diversity.
- We believe that a team with different perspectives, backgrounds and life- experiences will always outperform a homogenous one.
- Practical ways we show our commitment to building a diverse and inclusive team are:
- Flexibility of working hours and benefits to ensure employment suits different circumstances
- Enhanced parental leave
- Utilising software to test all job descriptions for unconscious bias
- Recruitment processes that are inclusive of our wider team and include an objectively measured skills based assessment wherever appropriate
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