Senior Frontend Developer

About the role

You will work with a micro‑services architecture, modern front‑end technologies and a data‑driven, experimental approach to product development. The team relies on Agile methodologies, A/B testing, continuous delivery and data insights to improve solutions used by many customers. You will have a real impact on both the customer experience and the technical direction of the platform, collaborating closely with developers, product teams and business stakeholders.

Key responsibilities

• Develop and maintain solutions within a high‑availability infrastructure, focusing on customer experience and business performance.
• Design and implement new projects in collaboration with colleagues and external partners.
• Work with modern technologies inside a micro‑services architecture.
• Contribute to a data‑driven, experimental development approach, including A/B testing and insights‑driven feature development.
• Mentor junior and mid‑level developers and support their technical growth.
• Improve coding standards, development processes, testing practices, tools and team collaboration.

Required profile

• At least 6+ years of professional software development experience.
• Experience with large‑scale, distributed systems and online products with a significant user base.
• Strong expertise in modern JavaScript (ES2020+), TypeScript and React (Hooks, server‑side rendering).
• Solid knowledge of HTML5, CSS3, SASS, CSS Modules and responsive design.
• Experience with testing libraries such as Jest and React Testing Library.
• Familiarity with Node.js, Express.js, modern build tools (Webpack, Babel, Vite) and CI/CD pipelines on GCP or AWS.
• Work from the European Union region with a valid work permit.

Required skills

• JavaScript (ES2020+)
• TypeScript
• React (Hooks, SSR)
• HTML5 & CSS3 (SASS, CSS Modules, responsive design)
• Jest & React Testing Library
• Node.js & Express.js
• Webpack, Babel, Vite
• CI/CD pipelines
• Google Cloud Platform (GCP) or Amazon Web Services (AWS)