Senior Java Engineer - Payments

Tesco UK; Welwyn Garden City; Hybrid; GBP 50,000 - 70,000; Full time

Job summary

A prominent UK retailer in Welwyn Garden City is looking for an experienced Java backend developer to join their payment services team. The candidate will translate requirements into code, produce test-driven features, and apply SOLID principles. They should have over 5 years of experience and be familiar with cloud platforms. The company emphasizes inclusivity and offers a blended work pattern.

Qualifications

• 5+ years of experience as a Java backend developer with eagerness to take on new technologies.
• Experience with cloud platforms such as AWS or Azure.
• Familiarity with SQL and NoSQL databases.
• Experience in Ecommerce and search systems is a plus.
• Reactive programming experience is considered an advantage.

Responsibilities

• Translate requirements into tasks and code.
• Produce test-driven features and demonstrate familiarity with the TDD cycle.
• Apply SOLID principles to create well-structured code.
• Work with product stakeholders to drive value.
• Support production systems and resolve incidents.
• Mentor and develop others around you.

Skills

Strong written and verbal communication skills

Problem-solving

Analytical skills

Customer focus

Innovative problem-solving

Job description

The payment services team is at the heart of Tesco Technology, serving 28 million+ shoppers in the UK and abroad. We deliver HTTP services that reliably manage payments at global scale, 24 hours a day every day. We also provide capabilities that detect and prevent fraud and build upon innovative technologies to reduce loss. 100M+ transactions and billions of events per day, a billion pounds every week.

At the core of our operation are the APIs that handle a variety of payment methods including cash, card and gift card across stores, at our fuel stations and online. We also support wallet behaviours, repeat payments, refunds and identity checks. They are built around an event sourcing architecture using various of Java, Akka, Cassandra, Postgres and Kafka. We embrace DevSecOps wherever possible. Automation is a key area of focus for us. Our scale and workloads demand that we continuously improve our approaches to testing and deployment. Kanban is the way we manage our work. We support what we code.

Responsibilities

• Translating requirements into tasks & code.
• Producing test-driven features and demonstrating your familiarity with the TDD cycle.
• Applying your understanding of cohesion and the SOLID principles to create well structured, maintainable software.
• Working effectively with product stakeholders to communicate and translate needs into product improvements.
• Leading group discussions on system design and working with Product Managers to drive value.
• Supporting production systems, resolving incidents, and performing root cause analysis.
• Sharing knowledge with the wider engineering community.
• Mentoring and developing others around you.
• Producing proof of concepts to evaluate new tools.

Experience relevant for this job

• 5+ years of experience as a Java backend developer with the eagerness to take on new technologies
• Experience with cloud platform(s) (e.g. AWS, Azure, etc.)
• Experience with both SQL/NoSQL databases
• Experience with Ecommerce and search systems would be a nice to have, but not necessary.
• Experience with reactive programming is considered a plus.

Skills relevant for the job

• Strong written and verbal communication skills.
• Problem-solving, analysis and computational skills.
• A customer focus.
• An innovative approach to problem-solving.

Our vision at Tesco is to become every customer's favourite way to shop, whether they are at home or out on the move. Our core purpose is ‘Serving our customers, communities and planet a little better every day’. Serving means more than a transactional relationship with our customers. It means acting as a responsible and sustainable business for all stakeholders, for the communities we are part of and for the planet.

We are proud to have an inclusive culture at Tesco where everyone truly feels able to be themselves. At Tesco, we not only celebrate diversity, but recognise the value and opportunity it brings. We're committed to creating a workplace where differences are valued, and make sure that all colleagues are given the same opportunities. We’re proud to have been accredited Disability Confident Leader and we’re committed to providing a fully inclusive and accessible recruitment process. For further information on the accessibility support we can offer, please click here.

We’re a big business and we can offer a range of diverse full-time & part-time working patterns across our many business areas, which means that we can find something that works for you. We work in a more blended pattern - combining office and remote working. Our offices will continue to be where we connect, collaborate and innovate. If you are applying internally, please speak to the Hiring Manager about how this can work for you - Everyone is welcome at Tesco.