Sensor Tower
Senior/Mid Frontend Engineer - React
Toronto, Canada · Senior
Sponsorship not specifiedDetected 61 days ago
JavaScriptTypeScriptRubyReactReduxRailsCode ReviewGitNoSQLMongoDBData ScienceData VisualizationDesign SystemsCypressJestCommunicationMentoringWriting
About the role
- Would you enjoy the fast-paced excitement of a startup mindset?
- Are you interested in architecting high-visibility, rapid-release products?
- Do you value mentoring talented engineers and driving technical excellence?
Responsibilities
- As a Senior Frontend Engineer at Sensor Tower, you will not only build features, you will define how we build them.
- Architect and deliver complex, scalable frontend systems that are simple and effective, removing unnecessary complexity from our codebase.
- You will partner with Product Managers to co-author requirements and shape the scope, ensuring engineering feasibility is considered during ideation, not just execution.
- Advocate for and drive best practices in React, TypeScript, and web performance optimization across the engineering organization.
- Collaborate deeply with Data Science and Backend Engineers to ensure seamless data flow and end-to-end system reliability, and use these partnerships to progressively expand your expertise across the full stack.
Requirements
- Software engineering experience with a deep specialization in modern JavaScript, TypeScript, and React.
- Proven ability to architect complex state management.
- While our stack relies on TanStack Query and Zustand, we value engineers who understand the principles and can adapt expertise from other libraries like Redux or MobX.
- Experience elevating the skills of peers.
Nice to have
- Experience in data visualization and analytics (handling large datasets, heavy DOM manipulation).
- Familiarity with Ruby on Rails framework and NoSQL/Columnar databases (MongoDB, Clickhouse).
- Read more about some of our Technical challenges here (written by members of our engineering team):
- https://sensortower.com/blog/e2e-testing-migrating-to-cypress
- https://sensortower.com/blog/how-we-scaled-to-thousands-of-sidekiq-workers
- At no point will Sensor Tower ever ask for money, credit card, or bank account information to complete a job application.
- Communications received from Sensor Tower are only sent by e-mail addresses ending in sensortower.com http://sensortower.com.
- All Sensor Tower interviews will be conducted via phone or Zoom.
Skills
- Sensor Tower does not accept third party resumes.
- Please do not send resumes to our jobs alias, Sensor Tower employees or any other organization location.
- Sensor Tower is not responsible for any fees related to unsolicited resumes.
- Sensor Tower will not pay any third-party agency or company that does not have a signed agreement with Sensor Tower.
- Final hiring decisions are ultimately made by humans.
- Competence in writing robust and efficient unit and integration tests using frameworks like Jest, Cypress, or Playwright.
Company info
- It's common for scammers to create positions that look legitimate on other sites.
- To ensure your submission is considered, only apply for positions at Sensor Tower through our company website or through posts directly associated with Sensor Tower company profiles on sites such as LinkedIn, Indeed, BuiltIn or Hackajob.
- Please provide your resume when applying.
- Experience We Are Looking For
- In our lean and flat organization, your voice will shape the technical direction of our product, helping us deliver an intuitive, fluid user experience that helps our customers understand the digital ecosystem.
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This listing is sourced directly from Sensor Tower's careers page and normalized into a canonical job model.