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Sr. Frontend Engineer

· Job Posted June 16, 2026
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Job Description

At Adapty, we make it easy for mobile apps to manage in-app purchases and paywalls. We power 20K+ apps, process $2B+ in subscriptions every year, and have been growing fast for the last four years. Our mission is simple: make apps rich. We are a team of 210+ passionate, product-driven people who love solving big challenges. Backed by top investors like 500 Startups and Surface Ventures, we are building one of mobile’s fastest-growing SaaS companies and aiming for number one worldwide. Our Growth Tools team builds complex, data-intensive dashboards for mobile apps – paywalls, A/B experiments, analytics workflows, large tables, interactive charts, and advanced filtering. We continuously evolve our frontend architecture, optimize performance at scale, and collaborate closely with backend and design teams. We’re looking for a Frontend Developer to join us and help take these systems to the next level – making them faster, more modular, and even more powerful for thousands of apps worldwide.

Job Responsibility

  • Design and ship end-to-end features in the dashboard, including paywall configuration, A/B experimentation, and analytics workflows
  • Build complex, data-heavy UIs: large tables with advanced filtering, column management, presets, interactive charts, and time-series comparisons
  • Evolve the frontend architecture toward clear modular boundaries and reusable UI components, while steadily modernizing legacy parts of the codebase
  • Optimize performance and reliability at scale using virtualization, code-splitting, optimized loading states, and consistent client-side data handling
  • Collaborate closely with design and backend teams to define API contracts, shape product requirements, and deliver high-quality UX that supports actionable decision-making

Requirements

  • 5+ years of experience building production web applications with React and TypeScript
  • Strong component architecture skills and proven ability to create reusable UI for complex products
  • Deep experience developing data-intensive UIs with modern state management and data libraries in the React ecosystem
  • Track record of profiling and optimizing performance in large-scale applications
  • Excellent communication skills and a strong sense of ownership

Nice to have

  • Experience migrating legacy codebases to modular architectures (e.g., feature-sliced or similar)
  • Strong background in data visualization and UX for analytical products
  • Contributions to design systems or internal UI libraries

What we offer

  • Exceptional compensation directly tied to your results
  • Direct communication and ownership
  • No bureaucracy, no politics, just impact
  • Flexible remote work
  • Language learning
  • Sports
  • Health insurance
  • Laptop coverage

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