This position is no longer available
Mexico City Hybrid

Sensor Tower was looking for a Senior/Mid Frontend Engineer - React

Role Overview

You will play a key technical role in shaping the frontend architecture of a high-impact, data-rich platform. Using React and TypeScript, you'll design systems that handle complexity with clarity, ensuring long-term scalability and performance. Your work will directly influence how users interact with large-scale digital marketing insights.

Key Responsibilities

  • Design and implement frontend systems that simplify complexity while supporting future growth.
  • Work alongside Product Managers to define requirements, balancing user needs with technical feasibility from the start.
  • Lead technical planning for significant features, focusing on delivering measurable customer value.
  • Guide junior and mid-level developers through code reviews, pair programming, and knowledge sharing.
  • Identify and resolve performance bottlenecks, technical debt, and architectural challenges proactively.
  • Promote consistent use of best practices in React, TypeScript, and testing across the engineering team.
  • Collaborate with Data Science and Backend teams to ensure reliable, efficient data integration across the stack.

What We’re Looking For

  • Proven experience building complex applications with modern JavaScript, TypeScript, and React.
  • Strong grasp of state management principles and experience applying them using tools like TanStack Query, Zustand, or similar.
  • Ability to build systems that remain clean and maintainable over time, even as requirements evolve.
  • Experience mentoring peers and improving team-wide code quality through feedback and example.
  • Track record of writing comprehensive unit and integration tests using Jest, Cypress, or Playwright.
  • Deep knowledge of browser performance, rendering behavior, and optimization strategies for data-heavy interfaces.
  • A problem-solving mindset focused on user outcomes—you question assumptions and suggest better paths when needed.

Nice to Have

  • Experience building data visualizations or analytics tools that handle large datasets efficiently.
  • Public code samples, technical writing, or open-source contributions that reflect thoughtful design and architecture.
  • Familiarity with Ruby on Rails or columnar databases like Clickhouse and MongoDB.

Work Environment

This is a hybrid role, combining in-office collaboration with flexible remote work. You’ll be part of a fast-moving, technically rigorous team that values simplicity, mentorship, and solving customer problems effectively. Our culture emphasizes sustainable engineering practices and continuous learning across the full stack.

Required Skills
React.jsTypeScriptJavaScriptReduxJestCypressPlaywrightState ManagementUnit TestingIntegration Testing
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About company
Sensor Tower
Sensor Tower is a mobile app analytics and market intelligence platform that provides insights for app developers and marketers.
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Job Details
Department Platform & Front End Engineering
Category frontend
Posted 3 months ago