Senior Front-End Developer

Senior Front-End Developer

Full-Time 48000 - 72000 £ / year (est.) No working from home possible
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At a Glance

  • Tasks: Develop scalable web applications and manage customer integrations using modern frameworks.
  • Company: Join a fast-growing AI e-commerce startup recognised by Forbes.
  • Benefits: Competitive salary, remote work options, and opportunities for professional growth.
  • Other info: Dynamic environment with excellent career advancement opportunities.
  • Why this job: Make a real impact in e-commerce with cutting-edge technology and a passionate team.
  • Qualifications: 7+ years of web development experience and strong TypeScript skills required.

The predicted salary is between 48000 - 72000 £ per year.

Segmentify is an e-commerce personalisation platform helping online retailers to optimise their conversion rates by enabling them to deliver a unique shopping experience for each visitor. Segmentify tracks each individual visitor’s behaviour in real-time and offers smart product recommendations by utilising in-house developed AI technology.

We have a dynamic and passionate compact team dedicated to creating a SaaS solution to boost eCommerce revenue. We are selected as one of the 25 Machine Learning Startups to Watch by Forbes magazine. We are one of the fastest growing start-ups in AI based e-commerce solutions with multiple investment rounds and have offices in 5 countries.

Role: You will collaborate closely with our product, design, and customer success teams, transforming requirements into scalable technical solutions and ensuring smooth, reliable deployments. Your output shall be used by hundreds of Segmentify customers to configure, run and personalise their campaigns on a daily basis.

Our Tech Stack includes: TypeScript, Node.js, React/Vue/Svelte, Vite, esbuild, Babel, pnpm/npm, GitHub Actions, Jest/Vitest, Playwright/Cypress, NestJS/Express, REST/GraphQL.

Responsibilities:

  • Develop scalable, maintainable web applications regardless of framework (React, Vue, Svelte, vanilla JS).
  • Manage customer integrations, write integration documentation, and support setup phases.
  • Analyze and deliver customer revision and feature requests in a timely manner.
  • Configure and optimise build pipelines with Babel, Vite, and esbuild (HMR, tree-shaking, code-splitting, bundle size optimisation).
  • Develop and publish npm packages (semantic versioning, changelogs, automated releases).
  • Build Front-End CI/CD pipelines with GitHub Actions (lint/test/build/storybook/e2e, caching, multi-environment deployments).
  • Design and implement Backend-for-Frontend (BFF) layers (preferably using Node.js/NestJS) with API orchestration, caching, rate limiting, and security best practices.
  • Write robust, type-safe code in TypeScript with well-structured domain models.
  • Develop SDKs and reusable libraries used by external developers/customers.
  • Ensure code quality through unit/integration testing, code reviews, and performance/security improvements.

Requirements:

  • BSc or MSc degree in Computer Science, Computer Engineering, Software Engineering or related disciplines from reputable universities.
  • 7+ years of professional web development experience.
  • Deep knowledge of Babel, Vite, and esbuild (plugins, loaders, build optimisation).
  • Strong experience with npm package development and publishing (monorepo/workspace experience is a plus).
  • Proven experience with GitHub Actions (or similar) for front-end CI/CD.
  • Hands-on BFF development experience (Node.js, preferably NestJS/Express).
  • Advanced TypeScript knowledge (generics, utility types, strict mode, configuration optimisation).
  • Experience developing SDKs or client libraries and releasing them to production.
  • Experience working on customer integrations and handling revision requests.
  • English level B2 or higher – must be comfortable with technical communication, documentation, and client interactions.

Nice To Have:

  • Monorepo setups (Nx, Turborepo), Storybook, Playwright/Cypress, Vitest/Jest.
  • Performance monitoring (Lighthouse, Web Vitals) and logging/observability.
  • Security best practices (CSP, SRI, OWASP, dependency auditing).
  • CDN, edge functions, SSR/SSG, ISR architectures.
  • Micro-frontend or design-system experience.

Senior Front-End Developer employer: Segmentify

Segmentify is an exceptional employer, offering a vibrant work culture where innovation thrives and every team member's contribution is valued. Located in London, our dynamic environment fosters collaboration and creativity, providing ample opportunities for professional growth and development within the fast-paced e-commerce sector. Join us to be part of a passionate team that is shaping the future of AI-driven solutions while enjoying the benefits of working in one of the world's most exciting cities.

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Contact Details:

Segmentify Recruitment Team

StudySmarter Expert Advice🤫

We think this is how you could land Senior Front-End Developer

Tip Number 1

Network like a pro! Reach out to your connections in the tech industry, especially those who work at Segmentify or similar companies. A friendly chat can lead to insider info about job openings and even referrals.

Tip Number 2

Show off your skills! Create a portfolio showcasing your best projects, especially those using TypeScript, React, or Node.js. Make sure it’s easy to navigate and highlights your problem-solving abilities.

Tip Number 3

Prepare for the interview like it’s a coding challenge! Brush up on your technical skills and be ready to discuss your experience with CI/CD pipelines and npm package development. Practice common interview questions to boost your confidence.

Tip Number 4

Don’t forget to apply through our website! It’s the best way to ensure your application gets seen by the right people. Plus, you’ll be one step closer to joining our dynamic team at Segmentify!

We think you need these skills to ace Senior Front-End Developer

TypeScript
Node.js
React
Vue
Svelte
Babel
Vite

Some tips for your application 🫡

Tailor Your CV:Make sure your CV is tailored to the Senior Front-End Developer role. Highlight your experience with TypeScript, React, and any relevant frameworks. We want to see how your skills align with our tech stack!

Showcase Your Projects:Include links to your previous projects or GitHub repositories. This gives us a chance to see your coding style and the kind of work you've done. Don't be shy; we love seeing what you're capable of!

Craft a Compelling Cover Letter:Your cover letter should tell us why you’re excited about joining Segmentify. Share your passion for e-commerce and how you can contribute to our mission. We appreciate a personal touch!

Apply Through Our Website:For the best chance of getting noticed, apply directly through our website. It streamlines the process for us and ensures your application lands in the right hands. We can't wait to hear from you!

How to prepare for a job interview at Segmentify

Know Your Tech Stack Inside Out

Make sure you’re well-versed in the technologies mentioned in the job description, especially TypeScript, Node.js, and the frameworks like React, Vue, or Svelte. Brush up on Babel, Vite, and esbuild as well, since they’re crucial for build optimisation.

Showcase Your Problem-Solving Skills

Prepare to discuss specific challenges you've faced in previous projects, particularly around customer integrations and feature requests. Be ready to explain how you approached these problems and the solutions you implemented.

Demonstrate Your CI/CD Knowledge

Since GitHub Actions is a key part of the role, be prepared to talk about your experience with CI/CD pipelines. Share examples of how you've set up automated testing and deployment processes in past projects.

Communicate Clearly and Confidently

As the role involves client interactions, practice explaining technical concepts in simple terms. This will show that you can communicate effectively with both technical and non-technical stakeholders.