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Senior UX Engineer/Front-End Engineer in London

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Job Description

Cint is a pioneer in research technology (ResTech). Our customers use the Cint platform to post questions and get answers from real people to build business strategies, confidently publish research, accurately measure the impact of digital advertising, and more. Cint is looking to raise the bar on engineering standards as well as user experiences.

Our products are redefining experiences within the industry, so help us reach our goals while we help you reach yours!\n Were seeking a Senior Frontend Engineer to join our UI Engineering team. This team is focused on providing frontend solutions to multiple projects and tooling to the whole company. We are deeply committed to advancing our frontend architecture (Next.js), ensuring alignment with our Design Systems, and collaborating with backend teams to deliver consistent, reliable, and user-friendly experiences across the platform.

\n \n As a Senior Frontend Engineer, you will join our globally distributed team to shape and elevate Cints Measurement, Survey Platform, and Design System experiences. Your mission is to craft high-quality, scalable user interfaces that power our core research products delivering intuitive experiences for our customers while also enabling internal teams to move faster with confidence. \n You will be a product-oriented and platform UI engineer, taking full ownership of the end-to-user experience.

This includes partnering closely with UX designers, product managers, and fellow engineers to understand customer and stakeholder needs for both external user-facing products and internal products like our survey platform and design systems. \n Partner closely with Product Managers and UX designers to deliver polished, user-centric experiences and support product rollouts. \n Create scalable and maintainable frontend components, while enhancing and extending our shared Design System.

\n Monitor and optimize application performance, resolving bottlenecks proactively. \n Contribute to design discussions and perform thorough code reviews to uphold quality standards. \n Advocate for and document best practices in frontend development.

\n Own the implementation of medium and large features from concept to delivery. \n 3+ years of software engineering experience building web applications. \n~ js 14+ (App Router), including expertise in data caching strategies and performance optimization.

\n~ Demonstrates proficiency in various UI rendering architectures (SSR, CSR, SSG, ISR) and the ability to determine their appropriate application. \n~ A proven expertise in designing and implementing robust UI solutions using TypeScript, with a strong focus on applying comprehensive typing throughout the stack to deliver maintainable and highly reliable user experiences. \n~ Experience with CSS and Tailwind, and in working with Figma and internal design systems.

\n~ Experience writing effective unit and integration tests, including API mocks. \n~ We embrace , equity and . \n \n In June 2021, Cint acquired Berlin-based GapFish the worlds largest ISO certified online panel community in the DACH region and in January 2022, completed the acquisition of US-based Lucid a programmatic research technology platform that provides access to first-party survey data in over 110 countries.

\n Additionally, in a world of AI, we want our candidates to understand our approach to the use of AI during the interview and hiring process, so we'd appreciate you reading our AI usage guide .

If you are interested in applying for this job please press the Apply Button and follow the application process. Energy Jobline wishes you the very best of luck in your next career move.

Senior UX Engineer/Front-End Engineer in London

London, UK
Full time

Published on 11/08/2025

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