Senior Software Engineer-Frontend
Senior Software Engineer-Frontend
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Job Description
dunnhumby is the global leader in Customer Data Science empowering businesses everywhere to compete and thrive in the modern data-driven economy. We always put the Customer First.
Our mission: to enable businesses to grow and reimagine themselves by becoming advocates and champions for their Customers. With deep heritage and expertise in retail one of the worlds most competitive markets with a deluge of multi-dimensional data dunnhumby today enables businesses all over the world across industries to be Customer First.
dunnhumby employs nearly 2500 experts in offices throughout Europe Asia Africa and the Americas working for transformative iconic brands such as Tesco Coca-Cola Meijer Procter & Gamble and Metro.
We are looking for a Senior Frontend Engineer to help build a modern performant and scalable frontend foundation for our retail media SaaS platform. You will be part of an agile squad working on independently deployable microfrontends built using React and TypeScript supported by a shared monorepo backend-for-frontend (BFF) APIs and a robust CI/CD pipeline.
Youll collaborate across product design and engineering to deliver modular interfaces contribute to architectural decisions and set high standards for code quality testing and maintainability. If you enjoy solving complex problems care deeply about frontend engineering excellence and want to work on a modern tech stack that enables velocity and scale wed love to hear from you.
Key Responsibilities
Frontend Engineering
- Build scalable dynamic web applications using React TypeScript and modern JavaScript fundamentals.
- Develop accessible responsive and well-tested UI components using CSS-in-JS (Emotion) utility-first CSS or similar approaches.
- Design and implement efficient state management patterns using Context API Zustand or Redux.
Microfrontend Architecture & Integration
- Contribute to the design and implementation of microfrontend architecture within a monorepoNx.
- Develop independently deployable modules with clear ownership and maintain reusable components using Storybook.
API Integration & BFF
- Integrate frontend components with RESTful and GraphQL APIs using BFF layers built with Fastify or Express to simplify backend access and optimize performance.
Testing & CI/CD
- Maintain a high standard of code quality through unit and integration tests using Jest React Testing Library and Playwright.
- Work with DevOps to set up and maintain CI/CD pipelines using tools like GitLab CI Octopus and Docker for containerized frontend builds on Kubernetes.
Collaboration & Ownership
- Collaborate with backend engineers UX designers and product managers to ship high-quality end-to-end solutions.
- Document decisions mentor junior engineers and contribute to continuous improvements in engineering practices and tooling.
Required Skills & Experience
- Experience from 5-9years only
- Strong hands-on experience with React TypeScript and modern JavaScript (ES6)
- Deep understanding of state management component design and styling techniques
- Experience integrating APIs (REST/GraphQL) and handling async flows
- Proficiency in frontend testing frameworks (Jest RTL Playwright)
- Working knowledge of CI/CD workflows especially using GitLab Octopus or equivalent
- Familiarity with monorepos and modular frontend architecture
- Good grasp of performance accessibility and browser compatibility
- Strong communication documentation and troubleshooting skills
Preferred Qualifications
- Experience with Nx Webpack or Vite for build optimization
- Exposure to microfrontend patterns and independent deployment
- Hands-on experience with Fastify/Express for backend-for-frontend (BFF)
- Understanding of frontend observability (New Relic Sentry Google Analytics)
- Familiarity with design systems and reusable UI libraries
- Knowledge of deploying applications on Google Cloud Platform (GCP) or Azure
- Comfortable working in agile squads with clear ownership and shared infrastructure
What Sets This Role Apart
- Opportunity to work at scale with a modern frontend stack and architecture that prioritizes performance and autonomy
- Be part of a team that values modular delivery shared responsibility and technical excellence
- Exposure to cutting-edge CI/CD Kubernetes and containerized frontend builds
- A collaborative environment that encourages ownership and continuous learning
What you can expect from us
We wont just meet your expectations. Well defy them. So youll enjoy the comprehensive rewards package youd 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.
Youll 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 dont 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 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)
Required Experience:
Senior IC
Employment Type
Full Time
