We’re the world’s leading data, insights, and consulting company; we shape the brands of tomorrow by better understanding people everywhere.

About the job

As a Senior Frontend Engineer, you will play a pivotal role in shaping the future of our customer-facing platform, crafting seamless and engaging user experiences. This role is crucial in driving innovation and ensuring the technical excellence of our user interfaces, directly impacting how customers interact with our products. By collaborating closely with designers, product managers, and backend teams, you will bridge the gap between design and technology, creating a cohesive and intuitive product ecosystem.

You will lead the development of complex, scalable interfaces using React and modern front-end architecture, ensuring high standards of code quality through clean, maintainable, and well-tested components! Additionally, you will mentor fellow engineers, contribute to architectural decisions, and champion best practices in CI/CD, performance, and security, becoming an integral part of a dynamic and collaborative team.

Job Goals

• Develop and deliver scalable, high-performing user interfaces using React and modern front-end frameworks.

• Collaborate with designers, product managers, and backend teams to ensure seamless integration and cohesive user experiences.

• Implement and maintain robust testing strategies, achieving comprehensive unit, integration, and end-to-end test coverage.

• Drive improvements in CI/CD pipelines, performance optimization, and front-end application security.

• Contribute to architectural decisions and establish best practices for front-end development.

• Mentor and guide junior engineers, fostering a culture of learning and collaboration within the team.

• Evaluate and adopt emerging trends and technologies to enhance the platform's technical capabilities and user experience.

Ideal Skills & Capabilities

• Proven expertise in JavaScript, React, and TypeScript, with a focus on building and maintaining scalable single-page applications (SPAs), with at least between 8 to 10 years of experience within a role as Senior Fronted Engineer.

• Strong understanding of modular component architecture and state management strategies, such as Redux or Zustand, ensuring maintainable and performant systems.

• Hands-on experience with advanced frontend testing methodologies, including tools like Jest, React Testing Library, or Cypress, to maintain robust code quality.

• Comprehensive knowledge of CI/CD pipelines and infrastructure tools (e.g., GitHub Actions, CircleCI) for seamless deployment and integration workflows.

• Expertise in identifying and mitigating frontend security vulnerabilities, ensuring secure and resilient applications.

Bonus points for:

• Experience in designing frontend systems for SaaS or analytics-heavy platforms.

• Familiarity with accessibility standards (WCAG) and internationalization.

• Contributions to open-source projects or relevant tech communities.

What part of Kantar might I be joining?

You’ll be joining our technology team, right in the middle of our tech revolution. We’re undergoing the largest technology transformation Kantar has ever seen, investing in new AI and cloud technologies. By modernizing all our tech systems, we can respond our clients' needs faster and more efficiently – and keep Kantar as a market leader for insights.

Why join Kantar?

We shape the brands of tomorrow by better understanding people everywhere. By understanding people, we can understand what drives their decisions, actions, and aspirations on a global scale. And if we combine the expertise of our people with the latest AI technology, we can really help brands discover some amazing insights.  

And because we know people, we like to make sure our own people are being looked after as well. Equality of opportunity for everyone is our highest priority and we support our colleagues to work in a way works for them. We encourage applications from all backgrounds and sections of society. Even if you feel like you’re not an exact match, we’d love to receive your application and talk to you about this job or others at Kantar.

Privacy and Legal Statement

At Kantar, the diversity of our employees provides a richer environment for our employees and broader depth and breadth of thinking for our clients. Kantar is committed to inclusion and diversity; therefore, we welcome applications from all sections of society and do not discriminate based on age, race, religion, gender, pregnancy, sexual orientation, gender identity, disability, marital status, or any other legally protected characteristics.

PRIVACY DISCLOSURE: Please note that by applying to this opportunity you consent to the personal data you provide to us to be processed and retained by The Kantar Group Limited (“Kantar”). Your details will be kept on our Internal ATS (Applicant Tracking System) for as long as is necessary for the purposes of recruitment, which may include your details being shared with the hiring manager.