Senior Frontend Developer

We are looking for a Seior Front End Developer within a pan-European consumer tech platform operating at significant scale.

The team owns long-term product development and builds reliable, high-throughput systems where the front end plays a critical role in performance, stability, and data-driven user experience. This is a core engineering group with real influence on platform evolution and technical direction, not a feature factory.

As a Senior Front-End Developer, you will work within a cross-functional agile team to build and maintain user-facing web applications that are scalable, performant, and highly usable. You’ll collaborate closely with back-end developers, designers, and product managers to implement new features, optimize existing interfaces, and ensure high standards of code quality and user experience.

Key Responsibilities

• Build and maintain responsive, high-performance frontend applications using modern JavaScript frameworks (primarily React).
• Develop and maintain Node.js services (e.g. BFFs, APIs, SSR layers) to support frontend use cases and optimize data flow.
• Collaborate closely with Product Managers, Designers, Backend, and Data teams to deliver end-to-end features.
• Contribute to frontend and full-stack architecture decisions, ensuring scalability, maintainability, and performance.
• Write clean, testable, and well-documented code; participate in code reviews and technical discussions.
• Optimize applications for performance, accessibility, SEO, and reliability in high-traffic environments.
• Work in an Agile setup (Scrum/Kanban), actively participating in planning, refinement, and retrospectives.

• Strong experience with JavaScript (ESNext) and TypeScript.
• Solid hands-on experience with React and modern frontend tooling.
• Practical experience with Node.js (Express, Fastify, or similar) in production environments.
• Understanding of API design, data fetching strategies, and frontend–backend integration.
• Experience with HTML5, CSS/SCSS, responsive design, and modern UI patterns.
• Familiarity with Git, CI/CD pipelines, and automated testing practices.
• Experience working in agile, cross-functional teams.

• Work on high-impact, high-traffic systems used by millions of users.
• Be part of a core engineering team with influence on architecture and technical direction.
• Hybrid setup: 4 days in the office in Bucharest, 1 day WFH.
• Direct B2B contract with the client.
• Collaborative, autonomous, and supportive environment.
• Opportunity to grow your career while tackling real-world scale and complexity.

Recruitment process:

• Screening call with the Recruiter
• Technical interview (Karat)
• Final Technical interview with engineering team