Catawiki is a global marketplace for extraordinary objects. We are seeking a Frontend Engineer to join one of our main development verticals (Demand, Supply or Fulfilment) in Lisbon, Portugal, in a hybrid capacity. You’ll work alongside Backend, Frontend, iOS, and Android Engineers, QA, UX Designers, and Product Managers to create beautiful, adaptable web frontends on top of scalable microservices, supported by a Tech Lead Manager.

What you’ll do: - Build impactful product experiences across the platform for buyers, sellers, customer service, and internal teams. - Create adaptable web frontends using our core stack of TypeScript and ReactJS. - Deliver responsive, accessible experiences across desktop, tablet, and mobile. - Optimize performance by measuring and monitoring systems and using insights to improve the experiences you build. - Collaborate on A/B tests with Product Managers and UX Designers; validate ideas with data. - Work with engineers, QA, design, and product colleagues to build scalable, maintainable solutions.

What you’ll bring: - Senior Frontend Engineer with extensive frontend experience, strong portfolio. - Proficiency in JavaScript/TypeScript, HTML, CSS; understanding of HTTP/S, Critical Rendering Path, CORS, caching, and CDNs. - Modern frontend skills: ReactJS, NextJS, Redux, CSS Modules, Tailwind, and/or Rails. - Experience in product companies; ability to work autonomously in cross-functional teams. - Production ownership: design, deployment, monitoring, and operation with focus on availability, latency, and consistency. - Knowledge o

Catawiki is a global marketplace for extraordinary objects. We are seeking a Frontend Engineer to join one of our main development verticals (Demand, Supply or Fulfilment) in Lisbon, Portugal, in a hybrid capacity. You’ll work alongside Backend, Frontend, iOS, and Android Engineers, QA, UX Designers, and Product Managers to create beautiful, adaptable web frontends on top of scalable microservices, supported by a Tech Lead Manager.

What you’ll do: - Build impactful product experiences across the platform for buyers, sellers, customer service, and internal teams. - Create adaptable web frontends using our core stack of TypeScript and ReactJS. - Deliver responsive, accessible experiences across desktop, tablet, and mobile. - Optimize performance by measuring and monitoring systems and using insights to improve the experiences you build. - Collaborate on A/B tests with Product Managers and UX Designers; validate ideas with data. - Work with engineers, QA, design, and product colleagues to build scalable, maintainable solutions.

What you’ll bring: - Senior Frontend Engineer with extensive frontend experience, strong portfolio. - Proficiency in JavaScript/TypeScript, HTML, CSS; understanding of HTTP/S, Critical Rendering Path, CORS, caching, and CDNs. - Modern frontend skills: ReactJS, NextJS, Redux, CSS Modules, Tailwind, and/or Rails. - Experience in product companies; ability to work autonomously in cross-functional teams. - Production ownership: design, deployment, monitoring, and operation with focus on availability, latency, and consistency. - Knowledge o