Senior Frontend Engineer

You’ll be a passionate, pragmatic Frontend / Web Software Engineer with an inquisitive mind who is motivated to make change for the better and most importantly put our customer first. You’ll enjoy working as part of a team and be a keen problem solver.

Comfortable with modern engineering practices and frontend development tooling and technologies you’ll use innovation to improve the customer experience and efficiency of engineering teams.

• Use your in-depth knowledge of JavaScript, Type Script, React, Node and the ecosystem of tools to develop and implement scalable frontend systems – ability, ability, Tesco,
• Profile and optimise code
• Apply understanding of cohesion and architectural principles to create well structured, maintainable software
• Identify patterns in code and refactor the code towards them where it increases understanding and/or maintainability with minimal guidance
• Translate requirements into tasks & code
• Develop high quality code that can lead to rapid delivery, ruthlessly pursuing continuous integration and delivery - CICD
• Commit code early and often, demonstrating understanding of version control & branching strategies
• Automate everything by default
• Write secure code by default
• Write maintainable code and observe basic hygiene practices
• Implement relevant project instrumentation
• Follow the best practices of continuous BDD/TDD/Performance/Security/Smoke testing
• Work effectively with product stakeholders to communicate and translate needs into product improvements
• Lead group discussions on system design and understand domain well enough to work with Product Managers to drive value
• Support production systems, resolve incidents and perform root cause analysis
• Debug/find complex problems and support/maintain the software solution
• Share knowledge with the wider engineering community
• Mentor and develop others around you
• Produce proof of concepts to evaluate new tools

We are looking for people who have a passion for Technology. You will demonstrate experience of different platforms and technologies.

• Commercial experience as a Frontend Software Developer
• Best-practices regarding all aspects of web development including design, semantic HTML mark-up, CSS, Type Script,and related technologies
• Exposure to a variety of JavaScript frameworks and libraries such as:
  React, Redux, React-Router and testing with React Testing Library Jest, Cypress, Playwright, Jasmine, Enzyme, Mocha.
• Experience of using Node.js to create high traffic applications. Perhaps using Express.js, Sails, Koa or similar
• Awareness and practice of UI performance best practices
• Understanding and exposure to integrating REST API and GraphQL endpoints
• Strong experience and understanding of industry standard web accessibility, web design & usability; to support sites cross browser/platform/device
• A desire to write readable, maintainable, modular and extendable code
• Exposure to the Dev Ops model
• Use AI-assisted engineering tools securely and responsibly where they add value
• Participate in on-call and production support processes
• Write and maintain Infrastructure as Code
• Experience in Lean and Agile environments and understanding of principles behind methodologies such as: BDD, ATDDand TDD
• Work collaboratively and win as a team

• Bringing multiple viewport responsive and adaptive web designs to life
• Modern JavaScript/Type Script frameworks including Remix or Next.js
• Developing web applications within the constraints of “non-standard” devices

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…