Senior Frontend

EFY is a fast-growing fintech building the future of payments and financial operations. We are a compliance-driven, customer-obsessed, and data-led company. Our mission is to empower individuals and businesses to transact globally with speed, trust, and simplicity. As Senior Frontend developer, the technical requirements include experience in: Languages/Frameworks: TypeScript, JavaScript, React, Angular; Architecture: Micro-frontends, monorepos (Nx/Turbo), SSR, Edge Rendering; State & Data: Redux, Zustand, MobX; GraphQL (Apollo/Federation), REST, WebSockets; Testing: Jest, React Testing Library, Cypress/Playwright, Pact; DevOps Integration: Docker, Kubernetes, Terraform/CDK, GitHub Actions, GitLab CI, feature flags; Cloud Platforms: AWS (S3, CloudFront, Lambda@Edge), GCP or Azure; CDN, distributed caching; Performance: Lazy-loading, code-splitting, prefetching, Core Web Vitals, performance budgets; Security: OAuth2, OIDC, CSP, CSRF/SSRF, SAST/DAST. The role requires strong technical leadership and architectural decision-making, effective communication in both English (B2+) and Spanish, analytical thinking and problem-solving ownership, cross-functional collaboration with DevOps, Security, and Product, and rigorous attention to detail and obsession with user experience quality.