Software Development Engineer III

Salary: £25,000 - 53,000 per year

Requirements

• Programming
• System Design
• Development Practice
• Infrastructure
• Software Security
• Operations and Maintenance
• Core Technology Development Lifecycle
• Product Methodologies
• Retail Technology Awareness
• Communication and Influencing
• Data Analytics and Insights
• Strategic Thinking and Problem Solving
• Finance and Procurement
• Curiosity and Learning
• Embracing and Enabling Change

Responsibilities

• Provide perspective and context for technology choices across our directorate.
• Take ownership and accountability for the development of products in our domain.
• Play an active role in technical leadership across teams and the wider directorate.
• Support other engineers in their delivery and lead key features as appropriate.
• Deliver multiple projects that move the needle for the business.
• Demonstrate technical breadth and depth as an expert in our domain.
• Act as a technical leader and trusted mentor for our teams and more junior engineers.
• Advocate best practices and build maturity in how we develop, deliver, and operate services.
• Design and implement appropriate testing and deployment strategies.
• Anticipate product feature evolution and facilitate design sessions that support future requirements.
• Understand and champion our wider architectural strategy across the systems we work on.
• Exercise technical judgment to manage competing priorities and ambiguous scenarios.
• Use data-driven decision making to balance short-term and long-term goals.
• Identify risks and proactively engage with product and programme managers.
• Share skills and technical knowledge through 1:1 discussions and formal training opportunities.
• Contribute to hiring and interviewing practices and participate in recruitment assessments.
• Represent Tesco Technology externally to attract new talent and interest in our organisation.

Technologies

• Support
• Mobile
• Network
• REST
• Security

More

We are Tesco, a supermarket, technology company, and award-winning mobile network, working to make every day a little better for our customers, colleagues, and communities. This is a senior individual contributor Software Development Engineer 3 role based in Welwyn Garden City on a hybrid working model, with 60% of the week spent collaborating at our office locations or local sites and the rest remotely. We offer a competitive colleague benefits package including an annual bonus scheme of up to 20% of base salary, 25 days holiday plus a personal day and bank holidays, private medical insurance, maternity, adoption, and paternity leave, and 24/7 virtual GP and Employee Assistance Programme support. We are an accredited Disability Confident Leader and provide a fully inclusive and accessible recruitment process. We also welcome flexible working conversations and encourage applications even if you do not tick every box.

last updated 36 week of 2026