dunnhumby
Tech / AI / Software
LeadEngineer-Frontend
Neural analysis suggests this role is
optimal for Lead candidates.
“Lead Engineer- Frontend at dunnhumby. Skills: ReactJS, TypeScript, JavaScript, Micro Frontends architecture, front-end performance optimization, automated testing, collaboration. Drive excellence in front-end development and user experience for our high-scale SaaS platform. Shaping the front-end architecture”
What You'll Achieve.
grow, innovate, and deliver measurable value for their customers; ensure our applications are scalable, resilient, and user-friendly; ensure high performance, security, and accessibility standards
Industry & Context.
analytical skills
What They're Looking For.
Must Have
8+ years of front-end development experience with ReactJS, TypeScript, and JavaScript (ES6+), Design patterns and modern UI frameworks, Experience with Micro Frontends architecture and component libraries (e. g. , Storybook, Material UI), Deep understanding of front-end performance optimization, Core Web Vitals, accessibility (WCAG), Webpack Bundle Analyzer, and React Profiler, In-depth knowledge of Webpack, Babel, ESLint, Prettier, and other modern build tools and task runners for optimizing development workflows, Experience integrating front-end applications with RESTful APIs and GraphQL, knowledge of component-based architectures, and UI state management (Redux, React Query, etc. ), Hands on automated testing (Jest, Cypress, React Testing Library), Experience with styled components and Emotion in ReactJS for modular and scoped CSS-in-JS, enabling efficient and dynamic styling, Proficiency with Webpack's advanced features like tree-shaking, lazy loading, code-splitting, and bundle optimization, collaboration skills to work effectively with cross-functional teams, including back-end engineers, UX designers, and product managers. (must for lead role)
Nice to Have
Experience working in cloud-based SaaS environments, with GCP preferred, Experience with CI/CD pipelines and deployment automation (GitLab, Octopus Deploy), Test-Driven Development (TDD) approach to ensure code reliability and quality in complex projects
What You'll Do.
Drive excellence in front-end development and user experience for our high-scale SaaS platform
Shaping the front-end architecture
Defining best practices ensuring high performance
and accessibility standards
Design and implement scalable
modular component architectures using ReactJS
Optimize UI performance using tools like Google Lighthouse
Improve front-end build pipelines
automated deployments
and observability using GitLab and Octopus Deploy
Ensure the UI is fast
aligning with UX design best practices
How You'll Work.
Team & Collaboration
Collaborate closely with backend engineers, product teams, UX designers, and platform engineers; Work with backend teams to design API interactions that balance efficiency and security, without overloading the front-end; collaboration skills to work effectively with cross-functional teams, including back-end engineers, UX designers, and product managers
Full Job Description
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. Tesco Retail Media team is transforming how advertisers connect with consumers through personalized and targeted campaigns across retailers' digital and physical touchpoints. We are seeking a Lead Front-End Engineer to drive excellence in front-end development and user experience for our high-scale SaaS platform. This role will be instrumental in shaping the front-end architecture, defining best practices ensuring high performance, security, and accessibility standards, and mentoring engineers. You will collaborate closely with backend engineers, product teams, UX designers, and platform engineers to ensure our applications are scalable, resilient, and user-friendly. You will also work with New Relic and Google Lighthouse to monitor front-end performance and observability. Key Responsibilities Technical Leadership: Define and establish front-end engineering best practices, including architecture, performance optimization, and maintainability. Front-End Architecture: Design and implement scalable, modular component architectures using ReactJS and optimize UI performance using tools like Google Lighthouse. Collaboration with Backend & BFF Teams: Work with backend teams to design API interactions that balance efficiency and security, without overloading the front-end. Mentorship & Upskilling: Guide and mentor engineers, establishing a strong front-end culture. CI/CD & Deployment: Improve front-end build pipelines, automated deployments, and observability
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