Senior Front End Engineer

• Mandatory Experience & Skills Overall Experience
• 6+ years of overall frontend/software engineering experience with at least 3 years of React Native / Expo experience.
• Significant hands-on experience building production-grade B2C applications at scale.
• Must have worked on consumer applications with a large user base / high transaction or traffic volumes.
• Strong experience working on applications where performance, reliability, scalability, and user experience are critical.
• Experience owning frontend features end-to-end, from development through production release and troubleshooting.
• Experience working in Agile product engineering teams with Product, Design, Backend, QA, and other technology teams.

Mobile Experience - Mandatory

• Strong hands-on experience with React Native.
• Strong hands-on experience with Expo.
• Experience with Expo Application Services (EAS), including build/release workflows.
• Experience developing, debugging, and supporting production mobile applications.
• Good understanding of mobile application architecture, lifecycle, navigation, state management, API integration, deep linking, push notifications, analytics, etc.
• Experience integrating native modules and third-party SDKs.
• Experience troubleshooting mobile performance, crashes, memory issues, and device- specific problems.

Web / mWeb Experience - Mandatory

• Strong experience building responsive MWeb / mobile-first web applications.
• Strong hands-on experience with:

1. React.js
2. TypeScript
3. JavaScript
4. HTML5

• CSS3
  Experience developing responsive customer-facing web journeys and pages.
• Strong understanding of browser compatibility, responsive design, web performance, and frontend security.
• Experience integrating APIs and third-party services into web applications.

Frontend Engineering Experience
The candidate should have strong experience with:

• React and React Native architecture.
• TypeScript and modern JavaScript.
• State management frameworks such as Redux/Redux Toolkit,
• Zustand, MobX, or equivalent.
• REST APIs and asynchronous data handling.
• Authentication and authorization flows.
• Error handling, logging, monitoring, and analytics.
• Component-based architecture and reusable UI components.
• Frontend performance optimization.
• Unit, integration, and end-to-end testing.
• Git and modern CI/CD practices.
• Code reviews and frontend engineering best practices.

Scale & B2C Experience
This is a key requirement.

Candidates should have experience working on large-scale consumer facing applications, preferably with:

• Millions of registered/downloaded users or equivalent large user base.
• High daily/monthly active users.
• High-volume API traffic or transactions.
• Applications requiring high availability and performance.
• Large-scale customer journeys where frontend performance directly impacts business outcomes.
• Experience handling production incidents and performance issues at scale.

Candidates whose experience is primarily limited to internal enterprise applications, small websites, prototypes, or low-scale applications should not be considered.

Preferred Experience

The following would be an advantage:

• Experience with React Native + Expo in a large-scale production application.
• Experience with Expo Router and EAS Build/Update.
• Experience with React Native Web.
• Experience with Next.js or equivalent modern React web frameworks.
• Experience sharing components or business logic across React Native and Web.
• Experience with design systems and reusable component libraries.
• Experience with Firebase or equivalent mobile services.
• Experience with mobile analytics and crash monitoring.
• Experience with deep linking / universal links / app links.
• Experience with health, fitness, wellness, insurance, fintech, ecommerce, or other high-volume B2C products.
• Experience integrating third-party SDKs and APIs.
• Experience with performance monitoring and optimization.

Key Responsibilities

• Develop and maintain customer-facing React Native/Expo mobile
• experiences.
• Develop and maintain responsive MWeb experiences.
• Build reusable and scalable frontend components and architecture.
• Integrate backend APIs and third-party services.
• Work closely with Product, Design, Backend, QA, and technology partners.
• Ensure frontend applications are performant, reliable, secure, and scalable.
• Investigate and resolve production issues.
• Participate in architecture and technical design discussions.
• Conduct code reviews and maintain engineering standards.
• Contribute to CI/CD, testing, monitoring, and release processes.
• Take ownership of frontend features from development through production.

Technical Stack
Primary

• React Native
• Expo
• React
• TypeScript
• JavaScript
• HTML5 / CSS3
• REST APIs
• Git

Preferred

• Expo EAS
• React Native Web
• Next.js
• Redux Toolkit / Zustand / equivalent
• Jest / React Native Testing Library
• Detox / Playwright / Cypress
• Firebase / equivalent
• CI/CD tooling

Candidate Profile

We are looking for an engineer who is:

• A strong hands-on frontend engineer, not primarily a people manager.
• Experienced in building large-scale B2C products.
• Strong in both React Native/Expo and MWeb development.
• Comfortable working independently and taking technical ownership.
• Able to understand product requirements and translate them into robust
• technical solutions.
• Strong at debugging complex production issues.
• Comfortable working in a multi-team environment with backend teams, product teams, QA, design teams, and external technology partners.
• Focused on performance, reliability, maintainability, and customer experience.