Senior/Mid Frontend Engineer - React

Sensor Tower

4d

About The Position

Sensor Tower’s digital intelligence platform provides unparalleled insight into market trends, advertising, competitor’s strategies, and consumer/user audience across mobile, web, and gaming. Sensor Tower’s insights are trusted by more than 2,500 enterprises worldwide across tech, retail/commerce, entertainment/media, gaming, consumer packaged goods, finance, and investment. This role offers the excitement of a startup mindset and the opportunity to architect high-visibility, rapid-release products, while valuing mentoring talented engineers and driving technical excellence. Join us in our journey to change how the world gains insights in digital marketing!

Requirements

• Software engineering experience with a deep specialization in modern JavaScript, TypeScript, and React.
• Proven ability to architect complex state management.
• Engineers who understand the principles of state management and can adapt expertise from other libraries like Redux or MobX.
• Ability to design systems that handle complexity without becoming complicated, prioritizing long-term maintainability.
• Experience elevating the skills of peers through teaching patterns and best practices.
• 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.
• A "Product Owner" mindset, caring deeply about the "why" behind every feature and viewing code as a tool to solve real user problems.
• Comfortable pushing back on requirements and proposing alternative solutions that drive better business outcomes and user experiences.

Nice To Haves

• Experience in data visualization and analytics (handling large datasets, heavy DOM manipulation).
• A portfolio, GitHub history, or technical writing that demonstrates clean code, an eye for design, and the ability to solve complex architectural challenges.
• Familiarity with Ruby on Rails framework and NoSQL/Columnar databases (MongoDB, Clickhouse).

Responsibilities

• Architect and deliver complex, scalable frontend systems that are simple and effective, removing unnecessary complexity from our codebase.
• Partner with Product Managers to co-author requirements and shape the scope, ensuring engineering feasibility is considered during ideation, not just execution.
• Lead technical decision-making for medium-to-large scoped features, taking responsibility for the successful delivery of value to the customer, not just the completion of tickets.
• Mentor junior and mid-level engineers through code reviews, pair programming, and by instilling quality-first habits across the team.
• Take ownership of the frontend stack by proactively identifying bottlenecks, technical debt, or systemic issues and driving the initiatives to fix them.
• 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.

What This Job Offers

• Job Type: Full-time
• Career Level: Mid Level
• Education Level: No Education Listed