Backend Software Engineer – 12 Month Fixed Term Contract Join us at giffgaff, a certified B Corp, for this full‑time backend software engineer role focused on delivering a best‑in‑class payment experience for our members. Summary

Location: Uxbridge Job Family: Digital & Technology Job Type: Full Time Ref #: 70174

You will work in a cross‑functional team with like‑minded people to ensure this product is successful and sustainable. Your responsibilities include: Key Responsibilities

Work with a full‑stack attitude within a self‑organising, cross‑functional product engineering team, using extreme programming practices, notably pair programming and test‑driven development. Build, support and maintain automated, fault‑tolerant, scalable products and solutions continuously delivered into our production environment. Leverage your experience and skills to assist your team in establishing the best architecture for your products and services. Be technically curious, proactive and able to produce solutions your colleagues can use, maintain, and learn from. Identify improvements in the software you use and build. Accept feedback and adapt to your team and the company’s priorities.

Our Tech Stack

Server‑side: Java 21, Maven, Spring Boot, JUnit. Client‑side: Typescript, React and various React ecosystem tools and libraries. Infrastructure: AWS, Kubernetes, Terraform, Kafka, DynamoDB, PostgreSQL, Redis, ElasticSearch, Kibana, Grafana, Prometheus.

The Must Haves

Test‑Driven Development, Pair Programming, Clean Code & Refactoring, System Design. Observability and a “you build it you run it” attitude. Product mindset. Good communication, giving and receiving feedback.

Other Stuff We Are Looking For

Event‑Driven Architecture; SOLID principles; microservices; micro‑frontends. Experience in payments/financial systems. A commitment to make ethical and responsible decisions that support giffgaff’s impact on people, planet and profit.

What’s in it for You Our goal is to celebrate our people, their lives and everything in‑between. We aim to create a culture that empowers everyone to bring the best versions of themselves to work each and every day. Working at giffgaff means you get a generous reward package bursting with benefits, and loads of extras you can add if you’d like. These are designed to support both you and your loved ones, making sure that you’re covered no matter what life throws your way. We’re all about hybrid working; you will have a base location with the right facilities for collaboration, alongside all the right kit to work from home too. Next Steps Once you submit an application, the next steps may include a call from one of our Talent Acquisition Partners. Applications will be reviewed, and interviews conducted throughout the duration of this advert, so we may bring the closing date forward. If you’re offered a job, it will be conditional based on the passing of background checks. All roles require a criminal record check and some roles require a financial probity check. Your recruiter can provide more information if needed. #J-18808-Ljbffr