Frontend Software Engineer

4 days ago

London, Greater London, United Kingdom Tesco Full time

About the Role

We are seeking a passionate and pragmatic Frontend / Web Software Engineer to join our team at Tesco. As a key member of our engineering team, you will be responsible for developing and implementing scalable frontend systems, using your in-depth knowledge of JavaScript, TypeScript, React, Node, and related technologies.

Your Responsibilities

  • Develop and implement high-quality frontend systems, utilizing modern engineering practices and frontend development tooling and technologies.
  • Profile and optimize code to ensure efficient performance.
  • Apply understanding of cohesion and architectural principles to create well-structured, maintainable software.
  • Identify patterns in code and refactor towards them where it increases understanding and/or maintainability with minimal guidance.
  • Translate requirements into tasks and code.
  • Develop high-quality code that can lead to rapid delivery, pursuing continuous integration and delivery.
  • Commit code early and often, demonstrating understanding of version control and branching strategies.
  • Automate everything by default.
  • Write secure code by default.
  • Write maintainable code and observe basic hygiene practices.
  • Implement relevant project instrumentation.
  • Follow 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.

Requirements

  • 5+ years of commercial experience as a Frontend Software Developer.
  • Best-practices regarding all aspects of web development, including design, semantic HTML markup, CSS, TypeScript, 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 endpoints.
  • Strong experience and understanding of industry-standard web accessibility, web design, and usability to support sites across browsers, platforms, and devices.
  • A desire to write readable, maintainable, modular, and extendable code.
  • Exposure to the DevOps model.
  • Experience in Lean and Agile environments and understanding of principles behind methodologies such as BDD, ATDD, and TDD.

Nice to Have

  • Experience with modern JavaScript/TypeScript frameworks, including Remix or Next.js.
  • Exposure to state machines and statecharts, with bonus points if using XState.
  • Developing web applications within the constraints of non-standard devices.

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