Senior Software Engineer - Energy

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.

Got your attention? Read on…

We work together. Your team and the people you will work with…

We work in small, fully autonomous teams with real ownership of their products.

Energy is at the heart of UW, with over 95% of our customers taking at least 1 Energy service. As a Senior Software Engineer in the Energy team, you'll find yourself working on high-impact projects such as our ongoing Energy Transformation and Market Wide Half Hourly Settlement - projects which lay the foundation for the next phase of UW.

You'll be joining one of our Energy engineering teams - the driving force behind our Energy Transformation. Working primarily with Go, Postgres, Kafka & Kubernetes, you'll contribute to the systems which underpin our Energy product offering.

We put people first. It’s all about you…

We’re looking for a senior backend-focused engineer to work across our core energy platforms. You’ll own deployments end-to-end within our team’s Kubernetes namespaces and contribute to systems where resilience, reliability, observability and uptime really matter.

You’ll thrive here if you enjoy autonomy, solving distributed systems problems, and mentoring others as a player-coach. Collaboration, pragmatism and low-ego teamwork are essential.

We deliver progress. What you’ll do and how you will make an impact.

Senior Software Engineer Responsibilities (Based on our Engineering Career Progression Framework):

• Impact: Be integral in defining team goals, ensuring proposed work aligns with our objectives and driving prioritisation to best achieve them.
• Technical Mastery: 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.
• Planning & Delivery: 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.
• Business & Domain Knowledge: 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
• Leadership & Culture: 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.

Possible Next Career Steps

• Staff Software Engineer
• Engineering Manager

Required Skills and Experience

To be successful in this role, you’ll need:

• Strong, hands-on production experience with Go
• Proven fluency with Postgres, Kafka, and Kubernetes
• Solid experience building distributed systems, including concurrency and event-driven architectures
• A strong understanding of system resilience, observability, uptime, SLAs, and progressive degradation
• The ability to deliver end-to-end solutions, from design through build, deployment, and ongoing support
• Experience working with CI/CD tooling, Terraform, and modern cloud workflows
• Familiarity with Kafka and database migrations (e.g. CockroachDB to RDS) as a plus
• Strong communication, collaboration, and problem-solving skills
• The ability to thrive in an agile, iterative environment while delivering continuous feature improvements
• Experience mentoring mid-level engineers and modelling engineering best practices
• Comfort working in autonomous, product-focused teams

So why pick UW?

We’ve got big ambitions so there’s going to be plenty of challenges. There are also a lot of 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.
• 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.
• Growth: A dedicated learning and development budget and bi-annual promotion cycles.
• 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’.

Apply here!

You’ve got this far… Hit apply — we can’t wait to hear from you!
Worried you don’t hit every criterion? We welcome applications from diverse backgrounds — get your application in and let’s chat!

Martyna Zbyszewska will be your point of contact throughout the recruitment process.

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.