Software Development Engineer II (Java) - Customer API in Welwyn Garden City

As an SDE2 at Tesco, you are a mid-level individual contributor whose impact reaches across your team. You provide technical leadership for medium to large features, participate in their design, and take accountability for delivery. You are expected to implement and ship end-to-end stories, support other engineers, and start to build and prioritize your own work by understanding team problems and proposing solutions. This role is a stepping stone towards SDE3, with a focus on career development and technical growth.

Responsibilities

• Developing high-quality software solutions, with proficiency in Java (Spring Boot or other frameworks).
• Working with Microsoft Azure and Terraform (Infrastructure as Code) or demonstrating a willingness to learn.
• Implementing and advocating CI/CD best practices for seamless software delivery.
• Maintaining high-quality documentation to support development processes and system design.
• Utilize data-driven decision-making, balancing short-term and long-term goals, and accepting appropriate trade-offs.
• Apply Tesco architectural standards and best practices, including security-first thinking and use of tools for vulnerability management and secure coding.
• Ensuring solutions are robust, scalable, and efficient.
• Taking ownership of systems, driving reliability, maintainability, and performance.
• Mentoring and supporting fellow engineers, fostering a culture of growth and collaboration.
• Automating workflows and building tools/scripts to enhance efficiency.

Required Technical Skills

• Experience in delivering Java (or any other JVM language), good to have: JS, TypeScript
• Spring Boot or Micronaut
• Azure, Terraform for infrastructure automation
• Microservices
• SQL (PostgreSQL), NoSQL databases, e.g. Cosmos DB or Couch DB
• Splunk, xMatters, New Relic etc.
• GitHub
• Zendesk & JIRA

Qualifications

• Solid experience in delivering Java or other JVM languages; familiarity with JS/TypeScript is a plus.
• Experience with cloud platforms (Azure, AWS) and infrastructure automation (Terraform).
• Good understanding of SQL (PostgreSQL) and NoSQL databases (e.g., Cosmos DB).
• Familiarity with monitoring and alerting tools (Splunk, xMatters, New Relic).
• Experience working with Agile methodologies (Scrum/Kanban)
• Good English communication skills
• Experience in system design
• Experience in taking ownership of a project and leading a team from technical/project perspective
• Proactive attitude

Work Environment & Culture

You might know us as a supermarket, technology company or even for our award-winning mobile network. Truth is, we're all of those things, and much more. Our colleagues work with one goal in mind, helping to make every day a little better for our customers, colleagues and communities all over the world. No two customers are the same, neither are our colleagues. At Tesco, we champion a balance that lets you thrive both in and out of work. Spend 60% of your week collaborating with colleagues at our office locations or local sites and the rest remotely. Whether you're just kicking off your career, juggling passions, or navigating big life events, we're here to support you. We always welcome a conversation about flexible working, so talk to us throughout your application about how we can support.

Diversity & Inclusion

We're proud to be an accredited Disability Confident Leader, where everyone's welcome. That's why we commit to providing a fully inclusive and accessible recruitment process. If you need support with your application, click here for more information. And if you're interested in joining our team but don't tick every box, don't let that hold you back from applying.