Backend Senior Software Engineer - Customer Lifecycle in London

Hi! We're UW. We’re on a mission to take the headache out of utilities by providing them all in one place. One bill for energy, broadband, mobile and insurance and a whole lot of savings! We’re aiming to double in size as we help more people to stop wasting time and money. Big ambitions, to be delivered by people like you.

The challenge for our Customers and Partners is that UW just needs to work – there when you need it, and invisible when you don’t. Just like flicking a switch. Our proposition to Customers is simple, but for our technology teams, the behind-the-scenes complexity is what makes it so interesting.

We are looking for a backend-focused Senior Software Engineer who thrives on autonomy and solving complex distributed systems problems at scale. You should be a pragmatic, low-ego team player who enjoys a collaborative approach to engineering. As a player‑coach, you will be comfortable mentoring mid-level engineers and modelling best practices within an agile, iterative environment.

What you’ll do:

• Be integral in defining team goals, ensuring proposed work aligns with our objectives and driving prioritisation to best achieve them.
• Design and implement complex technical solutions that align with our strategy, influencing guidelines and standards across the wider engineering group.
• Take responsibility for technical decisions within your team, demonstrating expertise across multiple technologies.
• Own large technical features from design to completion, making well-informed trade-offs between progress and perfection.
• Provide technical direction to your squad, proactively tackling debt and reducing complexity in our services and processes.
• Develop a high-level understanding of our multi-service business model, leading discussions on how your squad's work contributes to the broader company strategy.
• Teach our culture to others and mentor engineers via pairing and code reviews, fostering collaboration where all voices are heard.
• Lead complex projects and discovery into unknowns, working well under pressure to drive the team forward.

Technical skills & experience:

• Experience in Go is preferred but not essential.
• Expertise in GraphQL API design and implementation.
• Familiarity with cloud-native workflows, including Docker and Kubernetes.
• Experience with CI/CD tools such as GitHub Actions or ArgoCD.
• Proven track record in test automation and writing production-grade code.
• Experience working within autonomous, product-focused teams.

Benefits:

• Competitive salary: We benchmark against the industry and will share the salary openly during our first conversation.
• Performance bonus: An annual discretionary bonus ranging from 15-40%.
• Flexible working: We’re a remote-first business.
• Work-life balance: We offer an optional four-day working week (90% pay for 90% impact).
• Work from anywhere: You can work abroad for up to three weeks, twice every tax year.
• Holiday: 25 days plus bank holidays (increasing with tenure), with the option to trade up to five days each year.
• UW discounts: Save on our services and get a free Cashback Card. You’ll also get access to 100s of rewards and discounts through Perkbox.
• Future planning: Matched-contribution pension scheme and life assurance (up to 4x salary).
• Family first: Policies designed to help you and your family thrive.
• Flexible benefits: An allowance for private health insurance, dental insurance, or gym membership.
• Sabbaticals: An eight-week paid sabbatical after four years of service.
• A commitment to helping you develop your career journey through learning, coaching and new experiences.
• Inclusion: Join belonging groups that help shape our culture.
• Events: Company-wide celebrations including the ‘Great Big Get Together’ and our ‘Good Hearted Go‑Getter Awards’.

Equal Opportunity Employer. Not sure you meet all the requirements? Let us decide! Research shows that women and members of other underrepresented groups tend not to apply for jobs if they think they may not meet every qualification, when in fact they often do. We provide equal opportunities, a diverse and inclusive work environment, and fairness for everyone. You are welcome to apply no matter your age, disability, gender, marriage or civil partnership status, pregnancy and maternity status, race, religion or belief, or sexual orientation. Please don’t be afraid to ask about what we can do to support your needs. All requests will be carefully and fairly considered.

Please note, if you are successful and offered a role at UW, you will be subject to a background check. Where checks are unsatisfactory or incomplete and/or a failure to reveal information relating to convictions that you are required to identify as part of the background checks, could lead to withdrawal of an offer of employment.