Senior Backend Engineer: Scalable Microservices, Hybrid

Salary: GBP
70929 - GBP
86691 per annum

JOB TITLE:
Senior Software Engineer (Backend)
SALARY :£70,929 - £86,691
LOCATION(S): Edinburgh, Bristol, Halifax, Leeds & Chester
HOURS: Full-time – 35 hours per week
WORKING PATTERN: Hybrid – 40% (or two days) in one of our office sites

ABOUT THIS OPPORTUNITY

We’re transforming the way we serve our 26 million customers by investing in cutting-edge technology and exceptional engineering talent. As a Backend Software Engineer, you’ll play a key role in building scalable, secure, and resilient services that power our digital platforms.

You’ll work in a collaborative, agile environment where your ideas and expertise will shape the future of our backend systems. From microservices to cloud-native infrastructure, you’ll be at the heart of our engineering transformation.

WHAT YOU’LL BE DOING

As a Senior Software Engineer, you’ll:

Design, develop, test, and deploy backend services using modern OOP languages (e.g. Go, Python, C#) or Node.js

Build and manage containerized applications using Docker and Kubernetes (GKE).

Develop RESTful APIs and work with API Gateways (e.g. Apigee).

Apply Infrastructure as Code (Terraform) and Dev Ops practices (CI/CD, Git, Jenkins).

Work with SQL/No

SQL databases and Unix/Linux environments.

Contribute to architectural decisions and ensure secure, scalable solutions.

Mentor junior engineers and support community knowledge sharing.

WHAT YOU’LL NEED

We’re looking for engineers who are technically strong, collaborative, and eager to grow. You’ll need:

Strong backend development experience in Python or Node.js or C# or GO, etc.

Experience with containerization (Docker), orchestration (Kubernetes), and service mesh (Istio).

Familiarity with cloud platforms (GCP preferred) and IaC tools (Terraform).

Proficiency in CI/CD tools and Dev Ops principles.

Experience with TDD using JUnit and knowledge of secure coding practices.

Any experience with the below would also be desirable:

Microservices, event-driven systems, and test automation (BDD, contract testing).

ABOUT WORKING FOR US

Our ambition is to be the leading UK business for diversity, equity and inclusion supporting our customers, colleagues and communities and we’re committed to creating an environment in which everyone can thrive, learn and develop.

We were one of the first major organisations to set goals on diversity in senior roles, create a menopause health package, and a dedicated Working with Cancer Initiative.

We offer reasonable workplace adjustments for colleagues with disabilities, including flexibility in office attendance, location and working patterns. And, as a Disability Confident Leader, we guarantee interviews for a fair and proportionate number of applicants who meet the minimum criteria for the role with a disability, long-term health or neurodivergent condition through the Disability Confident Scheme.

We provide reasonable adjustments throughout the recruitment process to reduce or remove barriers. Just let us know what you need.

We also offer a wide-ranging benefits package, which includes:

A generous pension contribution of up to 15%

Annual bonus and share schemes

Flexible benefits and wellbeing initiatives

Supportive policies including parental leave and workplace adjustments

Want to do amazing work that makes a difference?

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