Senior Frontend Engineer

Posted Yesterday
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Manchester, Greater Manchester, England, GBR
In-Office
Senior level
eCommerce • Retail
The Role
Develop and maintain reusable React components for the company design system. Analyze requirements, build and test components, support integrations, mentor junior engineers, perform code reviews, document components, and identify automation and process improvements.
Summary Generated by Built In

dunnhumby is the global leader in Customer Data Science, partnering with the world’s most ambitious retailers and brands to put the customer at the heart of every decision. We combine deep insight, advanced technology, and close collaboration to help our clients grow, innovate, and deliver measurable value for their customers. 

dunnhumby employs nearly 2,500 experts in offices throughout Europe, Asia, Africa, and the Americas working for transformative, iconic brands such as Tesco, Coca-Cola, Nestlé, Unilever and Metro.

 

Most companies try to meet expectations, dunnhumby exists to defy them. Using big data, deep expertise and AI-driven platforms to decode the 21st century human experience – then redefine it in meaningful and surprising ways that put customers first. Across digital, mobile and retail. For brands like Tesco, Coca-Cola, Procter & Gamble and PepsiCo.

We’re looking for a Senior Engineer to join our team and help build and evolve the company’s design system. This role focuses on developing high-quality, reusable React components and supporting the infrastructure required to build, test, and release them.

Key Responsibilities

  • Conduct requirements analysis for new components and enhancements.
  • Develop new react components, and maintain our existing components.
  • Provide advice and guidance to junior colleagues as required to resolve specific challenges they're having and conduct design and code reviews. 
  • Work with consumers to support integration, and investigate and address any issues.
  • Pass on knowledge through documentation and presentations to prevent key person dependencies.
  • Identify and advise on improvement opportunities and automate and simplify, test, and operations processes.
     

Essential Skills(Must Have)
React.js
TypeScript/JavaScript
CSS
HTML
Desirable Skills(Good to have)
React Testing Library
Vite
Playwright
Jira
Gitlab

Desirable Experience
  • Building and maintaining design systems or UI component libraries
  • Practical experience with accessibility (WCAG 2.2 AA) and cross browser/device/platform UI development
  • Working in Agile environments
  • Development of components based on Figma designs
 

What you can expect from us

We won’t just meet your expectations. We’ll defy them. So you’ll enjoy the comprehensive rewards package you’d expect from a leading technology company. But also, a degree of personal flexibility you might not expect.  Plus, thoughtful perks, like flexible working hours and your birthday off.

You’ll also benefit from an investment in cutting-edge technology that reflects our global ambition. But with a nimble, small-business feel that gives you the freedom to play, experiment and learn.

And we don’t just talk about diversity and inclusion. We live it every day – with thriving networks including dh Gender Equality Network, dh Proud, dh Family, dh One, dh Enabled and dh Thrive as the living proof.  We want everyone to have the opportunity to shine and perform at your best throughout our recruitment process. Please let us know how we can make this process work best for you. 

Our approach to Flexible Working

At dunnhumby, we value and respect difference and are committed to building an inclusive culture by creating an environment where you can balance a successful career with your commitments and interests outside of work.

We believe that you will do your best at work if you have a work / life balance. Some roles lend themselves to flexible options more than others, so if this is important to you please raise this with your recruiter, as we are open to discussing agile working opportunities during the hiring process.

For further information about how we collect and use your personal information please see our Privacy Notice which can be found (here)

Skills Required

  • React.js
  • TypeScript
  • JavaScript
  • CSS
  • HTML
  • React Testing Library
  • Vite
  • Playwright
  • Jira
  • Gitlab
  • Building and maintaining design systems or UI component libraries
  • Practical accessibility experience (WCAG 2.2 AA)
  • Cross-browser/device/platform UI development
  • Experience working in Agile environments
  • Developing components from Figma designs

dunnhumby Compensation & Benefits Highlights

The following summarizes recurring compensation and benefits themes identified from responses generated by popular LLMs to common candidate questions about dunnhumby and has not been reviewed or approved by dunnhumby.

  • Fair & Transparent Compensation Pay is considered competitive relative to similar-sized firms in several markets. Positive perceptions of the overall pay-and-benefits mix support the view that compensation is broadly fair.
  • Leave & Time Off Breadth Paid time off is described as generous, with multi‑week starting allowances plus extras like a paid birthday, loyalty‑based additional days, and periodic early Friday finishes. These features contribute to a favorable time‑off experience across several U.S. locations.
  • Healthcare Strength Core coverage includes employer‑verified medical, dental, vision, life, and disability insurance alongside HSA/FSA options. This breadth of coverage is positioned as a solid component of the U.S. package.

dunnhumby Insights

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The Company
HQ: London
0 Employees
Year Founded: 1989

What We Do

Dunnhumby is a customer data platform that provides models and insights into how customers engage with retail and e-commerce spaces.

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