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Senior React Engineer

Heredia, Heredia, cr💼 Full-time🗓 2026-04-20 → 2026-07-31

Core

Building enterprise-scale, server-side rendered (SSR) React applications that deliver financial services to millions of customers globally.

Role type

Senior IC Frontend Engineer (React/Full Stack)

Builds

Performant, scalable web components and full-stack SSR applications for financial services.

Domain

Financial Services / Web Development

Deliverable

production ML models | product features

Required skills

React, TypeScript, Server-Side Rendering (SSR), Modern JavaScript, REST & GraphQL APIs, Testing Frameworks (Jest, Cypress), AI Coding Assistants (Copilot/ChatGPT/Claude), Web Fundamentals (Caching, Performance, Accessibility, OAuth), Agile Methodologies

Preferred skills

Node.js Backend Development, AWS (Lambdas, Fargate, S3, RDS), Design-to-Code Workflows (Figma), AI-Driven Workflow Design, Observability & Monitoring Tools, Regulated Financial Environment Experience

Technologies

React, Next.js, Remix, TanStack Router, React Router, Jest, React Testing Library, Cypress, Node.js, AWS, Figma

Responsibilities

Build and maintain enterprise-scale React applications with a focus on performance and scalability; Develop full stack, server-side rendered (SSR) applications using modern React patterns; Collaborate cross-functionally to translate product requirements into robust technical solutions; Contribute to architectural decisions and help evolve frontend and full stack patterns; Write clean, thoroughly tested and well-documented code; Participate in code reviews and mentor junior engineers.

Seniority

Senior, hands-on IC

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