Software Development Engineer II (Java) - Customer API (London)

Tesco - Corporate; Welwyn Garden City; On-site; GBP 50,000 - 70,000; Full time

Benefits offered by this job

Annual bonus scheme of up to 20% of base salary

25 days holiday plus personal day

Private medical insurance

24/7 virtual GP service

Employee Assistance Programme (EAP)

Job summary

Tesco - Corporate in Welwyn Garden City is seeking a mid-level Software Development Engineer (SDE2) to contribute to technical leadership and software delivery. The ideal candidate has solid experience with Java and cloud technologies, including Azure and Terraform, also embracing Agile methodologies.

This role emphasizes mentorship and driving software efficiency while participating in architectural practices for robust and scalable solutions. Join us to grow your technical career in a supportive, hybrid work environment.

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).

Responsibilities

• Develop high-quality software solutions.
• Implement CI/CD best practices.
• Maintain high-quality documentation.
• Drive reliability, maintainability, and performance.

Skills

Java

Azure

Terraform

SQL (PostgreSQL)

NoSQL databases

Agile methodologies

English communication skills

Tools

GitHub

JIRA

Zendesk

Splunk

New Relic

Job description

Tesco UK • Welwyn Garden City • Hybrid • Full-Time • Permanent • Working hours 36 • Apply by 01-Oct-2026

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.

While specific responsibilities will evolve with Tesco's business needs, the role's key areas of impact include:

• 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.

What is in it for you

We’re all about the little helps. That’s why we make sure our Tesco colleague benefits package takes care of you – both in and out of work.

• Annual bonus scheme of up to 20% of base salary.
• Holiday starting at 25 days plus a personal day (plus Bank holidays).
• Private medical insurance.
• 26 weeks maternity and adoption leave (12 months service required at the qualifying date) at full pay, followed by 13 weeks of Statutory Maternity Pay or Statutory Adoption Pay, we also offer 6 weeks fully paid paternity leave.
• Free 24/7 virtual GP service, Employee Assistance Programme (EAP) for you and your family, free access to a range of experts to support your mental wellbeing.
• This information is a shortened summary, refer to our policies for full details.

You will be responsible for

• 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

You will need

• 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