Senior Frontend Engineer — Remote-Ready, Scalable UIs

Tesco Technology; Welwyn Garden City; Hybrid; GBP 70,000 - 90,000; Full time

Benefits offered by this job

Annual bonus up to 20%

25 days holiday + personal day

Private medical insurance

Maternity & adoption leave

Paternity leave

24/7 virtual GP

Employee Assistance Programme

Job summary

Tesco Technology is seeking a passionate Frontend / Web Software Engineer to build scalable frontend systems using JavaScript, TypeScript and React. You will optimise code, translate requirements, and contribute to CI/CD while practicing secure, accessible design.

You will collaborate with Product Managers, support production systems, mentor colleagues, and produce proof-of-concepts for new tooling in a hybrid environment.

Qualifications

• Commercial experience as a Frontend Software Developer.
• Web development best practices including semantic HTML, CSS, TypeScript.
• Exposure to React, Redux, React Router; testing with RTL, Jest, Cypress, Playwright, Jasmine, Enzyme, Mocha.
• Experience with Node.js for high traffic apps (Express, Sails, Koa).
• UI performance best practices.
• Experience with REST API and GraphQL endpoints.
• Accessible, usable web interfaces across devices.
• Desire to write readable, modular, extensible code.
• Exposure to DevOps and Infrastructure as Code.
• Experience with Lean/Agile, BDD/ATDD/TDD.

Responsibilities

• Develop and implement scalable frontend systems using JavaScript, TypeScript, React and Node.
• Profile and optimise code for maintainability.
• Translate requirements into tasks & code.
• Deliver high quality code with CI/CD and secure practices.
• Collaborate with product stakeholders to drive value.
• Lead system design discussions with Product Managers.
• Support production systems and perform root cause analysis.
• Share knowledge and mentor others.

Skills

Frontend Software Developer

React

Redux

React Router

Testing with RTL/Jest

Cypress

Playwright

Jasmine

Enzyme

Mocha

Node.js

UI performance

REST API

GraphQL

Web accessibility

DevOps

Infrastructure as Code

Agile

DD/BDD

Mentoring

CI/CD

Proofs of concept

Remix

Next.js

Non-standard devices

Tools

Express.js

Sails

Koa

React Testing Library

Jest

Cypress

Playwright

Job description

Tesco Technology is seeking a passionate Frontend / Web Software Engineer to build scalable frontend systems using JavaScript, TypeScript and React. You will optimise code, translate requirements, and contribute to CI/CD while practicing secure, accessible design.

You will collaborate with Product Managers, support production systems, mentor colleagues, and produce proof-of-concepts for new tooling in a hybrid environment.