Software Development Engineer II (Java) – Identity – Welwyn Garden City, United Kingdom of Great Britain and Northern Ireland

Overview

In this role you will design, build, and operate high-performing authentication APIs for Tesco’s global customers. You will work closely with product managers to translate requirements into scalable solutions and continuously improve security-focused experiences. You’ll contribute to a DevOps culture with TDD, maintaining production systems and sharing knowledge with peers. The role sits at the crossroads of identity, security, and platform evolution, influencing new propositions at scale. This is a hands-on position in a fast-moving, globally distributed environment.

Pay / Benefits

• Annual bonus up to 20%
• 25 days holiday plus personal day + bank holidays
• Private medical insurance
• 26 weeks maternity/adoption leave + 6 weeks paid paternity leave
• 24/7 virtual GP
• Employee Assistance Programme (EAP)

Responsibilities

• Design, build and maintain mission-critical authentication systems
• Collaborate with product managers to convert requirements into technical solutions
• Develop test-driven features and follow the TDD cycle
• Support production systems, resolve incidents, perform root cause analysis
• Share knowledge with the engineering community
• Mentor and support junior engineers

Key requirements

• Strong proficiency in at least one major programming language (Java preferred)
• Hands-on experience building and supporting production Java applications
• Understanding of SOLID principles and maintainable software design
• DevOps mindset with incident resolution and root cause analysis skills
• Collaborative with cross-functional teams
• Understanding of identity and access management concepts (OAuth 2.0, OpenID Connect) is advantageous

• collaborative
• mentoring
• problem-solving
• Java
• Kotlin
• Spring Boot

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