Senior Frontend Developer (React)

Sobre a vaga

You will become a member of the Money & Volume front-end squad based in Lisbon, building a multilanguage, highly scalable, cloud native, multi market broker and membership platform. You will own significant front-end features end-to-end and work in an AI-First engineering culture.

O que vais fazer

• Own complete front-end feature development from spec through deployment - React / TypeScript
• Lead architectural discussions - document decisions in lightweight specs and plans (spec.md / plan.md)
• Build and review AI agent workflows using Claude Code, or equivalent tools - delegate implementation, review all output
• Build responsive, accessible UI and integrate with platform and financial APIs (REST / GraphQL)
• Grow into fullstack - take on backend work in Go as you progress, starting with domain modelling and resource-oriented API design (owning the data-access layer over time)
• Learn to enforce GDPR and EU AI Act compliance requirements in every feature - data privacy is architecture, not a checkbox
• Mentor mid-level and junior engineers; set the bar for code quality and AI-assisted development practices

O que é pedido

• 5+ years front-end experience; 3+ years building production React
• Strong command of modern React - hooks, composition, render/performance behavior, and when not to reach for a hook
• Strong, idiomatic TypeScript across a large codebase - generics, discriminated unions, inference, typing shared library boundaries (not just typing props)
• Writes clean, component-driven code with clear separation of concerns
• Solid grasp of state management and data-fetching patterns, and the judgment to decouple data-fetching from components
• Comfortable instrumenting what they ship - event tracking for measurement, and reading experiment results to know whether it worked
• Comfortable consuming and integrating resource-oriented REST APIs, including our headless CMS
• Works effectively in a large shared codebase / monorepo - respects package boundaries, reasons about blast radius
• Hands-on experience with a modern SSR React framework - data loading, streaming, caching layers, the client/server boundary
• A modern JS/TS test runner and React Testing Library - tests behavior, not implementation
• Component-driven development with isolated component testing and visual/interaction regression tooling
• Treats a green pipeline and trunk-based development as table stakes - small, frequently-merged changes, not long-lived branches
• Comfortable with debugging and performance tuning
• Builds responsive, accessible UI (WCAG-aware) with attention to UX
• Strong HTML / CSS and modern JavaScript / TypeScript fundamentals
• Comfortable working within a shared, multi-brand design system and component library
• Collaborates closely with design and back-end on shared API contracts
• BSc/MSc in computer science, engineering, or related discipline OR extensive relevant work experience

Valorizado

• Existing daily use of agentic coding tools - able to describe and demonstrate a personal AI development workflow and tooling setup
• Genuine interest in growing into fullstack - willing to learn Go for back-end work
• Any back-end exposure (Go, Node, or similar); experience in regulated / fintech environments (GDPR, handling financial/personal data)
• Domain modelling and resource-oriented API design - the first proficiency on the fullstack growth path
• Knows how to write and review Architecture Decision Records (ADRs), Low Level Design (LLD) and High Level Design (HLD) documents
• Large-monorepo tooling (pnpm workspaces, Turborepo): build graphs, affected-based CI, shared-package versioning
• Core Web Vitals / INP optimization, SSR performance, edge/CDN caching, bundle-size discipline
• Multi-brand / multi-market / i18n product experience
• Feature-flag / experimentation platforms (e.g. Statsig, LaunchDarkly); observability tooling (e.g. Sentry); behavioral analytics
• Experience with React Hook Form (or equivalent) for complex form state

O que é oferecido

• Flexible working environment
• Centrally Located Office
• Medical & Health Insurance
• Ergonomic Workplace
• Paid Holidays and Sick Leave
• Expat Guide & Relocation Assistance
• INSCALE onboarding program
• Competitive Package

Resumo organizado por IA a partir do anúncio original. Confirma os detalhes no site da empresa.