Senior Frontend Engineer — AI-Driven Web Apps

Sixt Research Development Services, Lda. is seeking a Frontend Software Engineer - React to turn product problems into precise specifications for AI agents and ship robust frontend components. You will work on an agentic ecosystem, build guardrails, and drive features from concept to production. The role emphasizes owning the shipped agents, debugging to...

Opinov8 is seeking a Senior Full Stack Developer to design, build, and maintain scalable web apps using React, .NET, C#, and Python. You will implement AI-driven features, collaborate with cross-functional teams, and translate requirements into robust software. Expect opportunities to optimize performance and stay current with tech trends. The role...

Klar S.A de C.V. is seeking a Flutter Engineer to own cross‑platform mobile and web app development. You will collaborate with designers, PMs, and backend engineers to deliver secure, responsive experiences across Android, iOS, and Web. You will drive code quality, implement complex state management, and embrace AI-assisted development to accelerate...

Klar is seeking a Flutter Engineer to power cross‑platform apps across Android, iOS, and Web. You’ll work with designers, product managers, and backend engineers to deliver secure, responsive experiences and deep product integrations. This role embraces AI‑driven development and scalable architectures within Klar’s fast‑moving, international team....

Easyship is a shipping technology platform that connects sellers and marketplaces to couriers. We seek a Senior Frontend Engineer to lead frontend architecture decisions, drive code quality, and mentor the team in a React.js/Type Script stack, leveraging AI-assisted development to boost velocity. This remote-global role reports to Engineering Manager,...

Opal is seeking a Senior i OS Engineer to help millions regain focus by shipping a best-in-class i OS experience. This role is remote (EU or UK) with periodic global meetups, offering ownership, craft, and growth in a fast-moving startup. You will lead end-to-end i OS development, apply AI-driven improvements, and collaborate across design and product in a...

INSCALE, a scalable IT partner, seeks a frontend developer in Lisbon to drive feature delivery using React and TypeScript. You will work on multi-market, cloud-native platforms with AI-assisted development and strong collaboration across product, design, and data teams. The role offers a hybrid model across Europe, with ongoing growth into backend Go and...

Ambit Iberia is seeking a Senior Full Stack Developer in Portugal to design, build, and deploy enterprise-grade applications with AI-enabled capabilities. You will work across backend and frontend stacks, leveraging cloud-native approaches and containerization.Collaboration with multidisciplinary teams and a strong emphasis on secure, scalable solutions are...

Frontend Web Developer Join to apply for the Frontend Web Developer role at Air Apps.Air Apps is a family‐founded company on a mission to create the world's first AI‐powered Personal & Entrepreneurial Resource Planner (PRP). Born in Lisbon, Portugal, in 2018 and now with offices in Lisbon and San Francisco, we are self‐funded and have reached over 100...