Senior Software Engineer - Telco Experience 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.

We work together. Your team and the people you will work with… We work in small, autonomous teams with real ownership of the customer journeys they deliver. As a Software Engineer in the Telco Experience Team, you’ll help build and integrate APIs that power stakeholder-facing telco journeys, working closely with product managers, frontend engineers, and business stakeholders to deliver customer-focused features.

While this role sits within our Telco Experience Team to meet immediate hiring needs, we’re also growing our engineering function more broadly and are keen to hear from engineers interested in building products across multiple domains. We value solid engineering fundamentals and transferable skills, and you’ll have opportunities to work beyond telco as our platform and teams continue to scale.

You’ll collaborate with core platform teams responsible for supplier integrations and shared infrastructure, contributing to projects that shape how our telco products are experienced end-to-end. You’ll work primarily with Go, Kafka, Kubernetes, Postgres and MongoDB, gaining hands-on experience with event-driven systems and modern observability practices.

We put people first. It’s all about you… We’re looking for a backend-focused engineer who enjoys learning, collaboration, and contributing to frontend-heavy initiatives while building reliable services. You’ll thrive here if you’re curious, proactive, and comfortable working in a fast-moving, evolving team. Experience in regulated consumer services or consultancy, and an interest in digitalisation and whole-product thinking, are a plus, but above all, we value a growth mindset and a desire to build great customer experiences together.

Required Skills and Experience

• Experience with Go is preferred but not essential.
• 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.

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

• Impact: Contribute to team goals by delivering well-scoped work that aligns with agreed objectives. Participate in prioritisation discussions and raise risks or opportunities as they arise.
• Technical Skills: Design and implement reliable technical solutions within existing architectures and standards. Make sound technical decisions for your work, drawing on experience across relevant technologies and seeking guidance when needed.
• Planning & Delivery: Deliver features and improvements from design through to completion with support from senior engineers. Balance quality and progress, address technical debt as part of regular work, and help keep services and processes maintainable.
• Business & Domain Knowledge: Build a solid understanding of the product and services your team supports. Understand how your work contributes to user and business outcomes, and factor this into day-to-day technical decisions.
• Collaboration & Growth: Work collaboratively through pairing, code reviews, and team discussions. Be open to feedback, support teammates when possible, and actively develop your technical and professional skills.

Possible Next Career Steps

• Senior Software Engineer

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 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.
• 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!

Additional Information

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.