Senior Frontend Engineer - High Velocity & Analytics
Brazil with LATAM-based collaboration, Central Time overlapContractSenior
Salary not disclosed
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Job Details
- Languages
- English (C1/C2)
- Experience
- 6+ years
- Required Skills
- GraphQLCypressJestTypeScriptReduxReactRESTful APIs
Requirements
- 6+ years of professional experience as a frontend engineer in senior-level roles
- Expert-level proficiency in React and TypeScript, including hooks, state management (Redux/Context), and advanced typing patterns
- Strong experience building scalable frontend architectures for complex, data-driven applications
- Deep knowledge of testing methodologies, including unit, integration, and E2E testing (Jest, RTL, Cypress)
- Strong experience working with GraphQL and REST APIs, especially handling large and complex datasets
- Ability to work independently in ambiguous environments and translate requirements into structured solutions
- Excellent English communication skills (C1/C2), with experience collaborating with US-based stakeholders
- Familiarity with backend systems such as Node.js, NestJS, or PHP/Laravel for better full-stack understanding
- Strong systems thinking and architectural awareness in frontend design
Responsibilities
- Design and implement complex, data-heavy UI components and dashboards using React and TypeScript
- Translate ambiguous business requirements into clear, scalable, and maintainable frontend solutions with minimal supervision
- Ensure high reliability and quality through strong testing practices, including unit, integration, and end-to-end testing (Jest, React Testing Library, Cypress)
- Validate and audit complex datasets from GraphQL and REST APIs to ensure accuracy in analytical outputs
- Build accessible, human-centric interfaces with a strong focus on usability and long-term maintainability
- Collaborate with backend engineers to support end-to-end debugging and full-stack traceability
- Leverage modern tools, including AI-assisted development, while maintaining strong architectural ownership and code quality standards
- Contribute to improving engineering velocity, reducing ambiguity, and strengthening frontend system design practices
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