Senior/Mid Frontend Engineer - React
Core
Architect and deliver complex, scalable frontend systems for a digital intelligence platform serving 2,500+ enterprises in tech, retail, gaming, and finance.
Role type
Senior Frontend Engineer (React/TypeScript)
Builds
High-visibility, rapid-release products and intuitive user experiences for the Sensor Tower digital intelligence platform.
Domain
Digital marketing intelligence, mobile analytics, and web/gaming data platforms.
Deliverable
production ML models | product features
Required skills
Modern JavaScript, TypeScript, React, complex state management (TanStack Query, Zustand), system architecture for maintainability, unit and integration testing (Jest, Cypress, Playwright), web performance optimization, product ownership mindset.
Preferred skills
Data visualization and analytics, handling large datasets, DOM manipulation, Ruby on Rails, NoSQL/Columnar databases (MongoDB, Clickhouse), technical writing.
Technologies
React, TypeScript, TanStack Query, Zustand, Jest, Cypress, Playwright, Ruby on Rails, MongoDB, Clickhouse.
Responsibilities
Architect and deliver complex, scalable frontend systems; partner with Product Managers to co-author requirements and shape scope; lead technical decision-making for medium-to-large scoped features; mentor junior and mid-level engineers; take ownership of the frontend stack to identify and fix bottlenecks and technical debt; advocate for best practices in React, TypeScript, and web performance optimization.
Seniority
Senior, hands-on IC with mentorship responsibilities.