Senior Front End (React.js) Engineer

Over 20 years of market experience, Intellias brings together technologists, creators and innovators in Europe, North and Latin America, and the Middle East. Join our international team and take the mission to solve the advanced tech challenges of tomorrow!

What project we have for you:

Our client is an innovative global company from the Fortune 500. Consumer Goods Producer and Retailer with headquarters in Switzerland that sells its products in 130 countries. Intellias mission is to support its strategy and efforts in the Digital and eCommerce space.

A newly conceptualized Digital Eco System is comprised of a set of capabilities including an online shop & website, linking online & offline, customization & personalization, engagement & membership, digital products & services.

What you will do:

• Collaborate with business stakeholders and technical teams to understand and analyze data requirements
• Lead the design and implementation of data models and database structures that meet business needs
• Profile, refactor, and tune performance in the database
• Design and implement complex ETL processes to extract, transform, and load data from various source systems into the data warehouse
• Ensure data integrity, consistency, and accuracy through robust data quality assurance measures
• Review and support team members, providing guidance and mentorship
• Supervise and contribute to the data-driven strategy for the project, aligning it with business objectives

What you need for this:

Own the design and delivery of reliable frontend features across the Next.js application and shared packages. Collaborate closely with product, design, backend, and QA teams while helping the team make technical decisions.

• Senior-level experience delivering production web applications, with 5+ years in frontend development.
• Strong experience with React, TypeScript, and modern Next.js, including App Router patterns and server/client rendering.
• Ability to design maintainable components and shared packages/APIs within a large monorepo.
• Experience integrating frontend applications with GraphQL and REST APIs, including generated types, loading and error states, and evolving backend contracts.
• Proficiency in responsive and accessible UI development using CSS Modules/SCSS, with the ability to work within an existing design system and follow design token conventions.
• Experience with frontend state management, such as Redux and React Context.
• Solid understanding of testing and quality practices, including Jest or Vitest, Testing Library, Storybook, and browser testing frameworks.
• Familiarity with monorepo tooling and CI quality gates, including linting, PR workflows, type checks, and builds.
• Strong debugging, code review, and written communication skills.
• Ability to take ownership of features through implementation, testing, release, and production follow-up.
• Experience using modern AI development tools to improve productivity, such as GitHub Copilot, Codex, or Claude Code.

Why tech pros thrive here:

At Intellias, where technology takes center stage, people always come before processes. We’re dedicated to cultivating a tech-savvy environment that empowers individuals to unlock their true potential and achieve extraordinary results. Our customized benefits not only prioritize your well-being but also charge your professional growth, making this opportunity an ideal match for tech enthusiasts like you.