Software Engineer - Nx Monorepo

Why this job matters

 We’re looking for a Senior Software Engineer with strong experience in Nx monorepos, React/Next.js, and modern frontend engineering practices. In this role, you’ll work hands‑on across our shared platform and product teams to build scalable features, improve developer experience, and strengthen the architecture of our multi‑app ecosystem.

You’ll contribute to technical standards, support key upgrades (Nx, React, Next.js), improve CI/CD performance, and help evolve our shared libraries, generators, and tooling—ensuring our applications remain secure, reliable, and high‑performing.

What you’ll be doing

• Contribute to the evolution of the Nx monorepo architecture—module boundaries, dependency graph health, shared libraries, and generator blueprints.
• Implement and promote coding standards: linting rules, TypeScript configs, testing patterns, and best‑practice conventions.
• Collaborate on integration patterns with design systems, CMS/AEM, and shared backend services.
• Work on analyzing and optimizing frontend apps for performance, seo, and accessibility.

• Participate in major upgrades (React 19, Next.js 16+, Nx v22+) by implementing changes, validating migrations, and improving rollout safety.
• Help break down legacy or monolithic areas into modular, testable components and support teams adopting microfrontends where relevant.
• Partner with cross‑functional teams to deliver high‑quality features that align with architectural direction.
• Implement and monitor performance optimisations like Analytics, SEO etc
• Improve CI/CD reliability and speed using Nx features (affected builds, caching, task orchestration).
• Contribute to the testing strategy across unit, integration, and e2e layers (Jest, Cypress/Playwright).

Skills

• Strong hands-on experience with Nx monorepos: module boundaries, affected targets, generators, task pipelines.
• Advanced React/Next.js skills: SSR/SSG/ISR, routing, data-fetching, server components, React 19 migration awareness.
• Solid experience with CI/CD (GitLab or GitHub Actions): caching, artifacts, pipelines-as-code.
• Strong proficiency in TypeScript, Node.js, ESLint, Prettier, and general frontend tooling.
• Experience with automated testing (Jest, Cypress/Playwright) across multiple layers.
• Good understanding of web performance, observability, and debugging tools.
• Working knowledge of security best practices for web apps and supply chain safety.
• Strong communication skills for collaborating across engineering teams.

Our leadership standards

Looking in:
Leading inclusively and Safely
I inspire and build trust through self-awareness, honesty and integrity.
Owning outcomes
I take the right decisions that benefit the broader organisation.

Looking out:
Delivering for the customer
I execute brilliantly on clear priorities that add value to our customers and the wider business.
Commercially savvy
I demonstrate strong commercial focus, bringing an external perspective to decision-making.

Looking to the future:
Growth mindset
I experiment and identify opportunities for growth for both myself and the organisation.
Building for the future
I build diverse future-ready teams where all individuals can be at their best.

Benefits

• Annual On target bonus 10% (personal and company multipliers)
• BT Pension scheme; minimum 5% employee contribution, BT contribution 10%
• Life Assurance
• Direct share scheme
• Exclusive colleague discounts on our latest and greatest BT broadband packages
• 50% off EE mobile pay monthly or SIM only plans and 50% discount for friends and family on EE SIM only plans
• My Discounts gives colleagues access to unbeatable savings on everyday purchases at hundreds of retailers
• Discounted EE TV including TNT Sport and the NOW Entertainment membership
• Great support for working parents including pay whilst on maternity, adoptive, and paternity leave
• Option to join the Healthcare Cash Plan or other benefits such as dental insurance, gym memberships etc.
• 25 days annual leave (not including bank holidays), increasing with service with buy holiday option
• Volunteering days so you can give back to your local community
• Brand new electric vehicle salary sacrifice arrangement, known as ‘My EV’