Hauler Hero

Senior Frontend Engineer – Contractor

Hauler Hero

contract

Posted on:

Location Type: Remote

Location: Anywhere in Latin America

Visit company website

Explore more

✨ AI Apply
Apply

Job Level

Senior

Tech Stack

CypressJavaScriptJestReactReduxTypeScript

About the role

  • Implement pixel-accurate, responsive interfaces from Figma using React, TypeScript, and Material-UI (MUI)
  • Own features end-to-end from design handoff through implementation, testing, deployment, and iteration
  • Build complex, validated forms using React Hook Form
  • Ensure mobile-first UX, including tablet-first workflows used in the field
  • Own frontend testing across unit, integration, and e2e layers (Jest, React Testing Library, Cypress or Playwright)
  • Drive frontend quality standards and best practices
  • Optimize performance including bundle size, render performance, and Core Web Vitals
  • Extend and customize MUI components using advanced CSS (Flexbox, Grid, CSS variables)
  • Work closely with Product, Design, and Backend Engineering
  • Participate in code reviews and mentor junior engineers
  • Ship MVPs quickly and iterate based on customer feedback
  • Communicate clearly in an async-first environment using Slack, Notion, and Loom
  • Help define component patterns and frontend architecture
  • Influence and support the transition from JavaScript to TypeScript
  • Contribute to the evolution of the design system
  • Identify and address technical debt pragmatically

Requirements

  • 5+ years building production React applications
  • Strong TypeScript experience or full readiness to adopt it
  • Deep experience with Material-UI (v5+)
  • Expert-level use of Redux Toolkit and RTK Query
  • Advanced CSS3 including Flexbox, Grid, responsive design, and mobile-first principles
  • Experience building complex forms with React Hook Form
  • Hands-on ownership of frontend testing (Jest, RTL, Cypress or Playwright)
Benefits
  • This is a contractor role, not full-time employment
  • Candidates must be based in LATAM
  • Senior-level ownership and reliability are expected
  • Consistent overlap with US working hours is required
Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard Skills & Tools
ReactTypeScriptMaterial-UIReact Hook FormJestReact Testing LibraryCypressPlaywrightRedux ToolkitRTK Query
Soft Skills
communicationmentoringcollaborationproblem-solvingownership