171 react English-speaking jobs in Lisbon

) Agentic patterns (tool use, routing, memory management; multi-agent systems experience is a plus) ReAct

Frontend development expertise: Proficiency in JavaScript (ES6+), TypeScript, React, Next.js, HTML5,

deliver to customer expectations within strict deadlines Ability to deal with ambiguity, embrace and react

Experience with React or Vue using TypeScript may also be considered, but some front-end exposure is

Deep JavaScript and React.

Our Tech Stack Cleo is built as a Ruby on Rails monolith with a single React Native app frontend, utilising

, as is working under EU data-residency constraints Our Tech Stack Frontend: TypeScript, Svelte and React

Ability to react quickly to emerging industry developments, product launches, and relevant discussions

Strong experience with modern frontend frameworks, preferably React, together with sound understanding

A company at the vanguard of the agentic revolution, where we don't just react to AI innovation—we architect

Tools TypeScript, React and Next.js, Python, Postgres, Google Cloud, LLMs from Anthropic, OpenAI and