Senior/Mid Frontend Engineer - React
Sensor TowerToronto, Ontario, Canada
Posted April 7, 2026
Full Time
About the Company
Sensor Tower is a leading provider of mobile app, digital advertising, retail media, and audience insights for global brands and app publishers. With a mission to measure the world's digital economy, Sensor Tower offers an award-winning platform that delivers unmatched visibility into the mobile ecosystem, enabling organizations to make informed strategic decisions. Key services include mobile analytics, market intelligence, app store optimization, and competitive analysis, making Sensor Tower distinctive in its ability to demystify complex digital landscapes for marketers and developers.
Job Description
As a Senior Frontend Engineer at Sensor Tower, you will architect and deliver complex, scalable frontend systems that are simple and effective, and take ownership of the frontend stack by proactively identifying bottlenecks and driving the initiatives to fix them.
Requirements
- Software engineering experience with a deep specialization in modern JavaScript, TypeScript, and React
- Proven ability to architect complex state management
- Experience elevating the skills of peers
- Competence in writing robust and efficient unit and integration tests using frameworks like Jest, Cypress, or Playwright
- Deep understanding of web performance, browser internals, and optimization techniques for data-heavy applications
Benefits
- Company culture
- Mentor junior and mid-level engineers
- Opportunities for career growth and development