Senior Software Engineer - Growth

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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.

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.

The Customer Acquisition team sits within Growth and owns the entire signup and ordering journey — one of UW’s most mission-critical funnels. This covers everything from the customer UI to the backend services powering partner onboarding, direct customers, internal sales teams and third-party channels.

We are mid-way through major launches across partner and internal channels, following a significant rewrite of the signup experience. You’ll join at a moment of real momentum, working closely with product, design and engineers across multiple domains.

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

You’ll help evolve our signup and ordering flows into a resilient, scalable platform capable of supporting UW’s next phase of growth.

Your impact will include:

• Improving resilience, scalability and system reliability

• Raising engineering standards across observability, SLAs and deployment quality

• Contributing to key launches (including partner rollout and rebrand work)

• Supporting distributed system improvements and database migration projects

Core Responsibilities

• Work primarily in Go, GraphQL, Docker & Kubernetes

• Break down complex work and deliver with minimal oversight

• Maintain strong engineering standards across code, documentation and security

• Own deployments within the team’s Kubernetes namespace

• Mentor mid-level engineers through pairing, PR reviews and technical leadership

• Collaborate with product/design to refine scope and solve problems pragmatically

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

We’re looking for a senior backend-leaning engineer to work across our core customer acquisition platforms. You’ll work primarily with Go, GraphQL, Docker and Kubernetes. You’ll own deployments end-to-end within our team’s Kubernetes namespace 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.

Required Skills and Experience

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

• Strong production experience with Go (non-negotiable)

• Fluency with GraphQL, Docker and Kubernetes

• Experience with distributed systems, concurrency and event-driven architectures

• Good understanding of resilience, observability, uptime, SLAs and progressive degradation

• Ability to deliver end-to-end: design → build → deploy → support

• Experience with CI/CD tooling (GitHub Actions, ArgoCD), Terraform and cloud workflows

• Familiarity with Kafka and database migrations (CockroachDB → RDS) is beneficial

• Comfortable contributing to React/TypeScript when required

• Strong communication, collaboration and problem-solving skills

• Experience mentoring mid-level engineers and modelling engineering best practices

• Comfortable working in autonomous, product-focused teams

Possible Next Career Steps

• Staff Software Engineer

• Engineering Manager

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:

• An industry-benchmarked salary. We’ll share it during your first conversation.

• Share Options and Save as You Earn scheme.

• Flexible working — remote-first with access to hot desks across the UK and a central London hub.

• Work-from-anywhere policy for up to 2 weeks per year.

• Discounts on our services and a free Cashback Card.

• Matched-contribution pension scheme and life assurance up to 4x salary.

• Family-friendly policies designed to help you and your family thrive.

• Discounted private health insurance, Employee Assistance line and free Virtual GP.

• Belonging groups helping shape an inclusive future.

• A commitment to learning and progression through our Career Development Framework.

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!

David Finlay will be your point of contact throughout the recruitment process.