React Native Developer

About the Role

We are looking for a Senior Android Engineer with deep React Native expertise to build and own the trading

experience on Android — real-time data, interactive charting, fluid interactions, and rock-solid performance. What We’re Looking For

You have shipped production React Native apps that handle real-time data streams, complex UI states, and

performance-sensitive rendering. You understand the Android platform deeply — native modules, bridge

performance, and platform-specific behaviour. Ideally, you have worked on trading, fintech, or data-intensive

mobile products. You take ownership of your features end-to-end, care about code quality, and are comfortable

driving technical decisions independently. What You’ll Do

• Own the mobile trading experience on Android — architecture, performance, and end-to-end quality. • Build and optimize real-time data rendering — WebSocket lifecycle management, efficient list rendering, and minimal re-renders for streaming data. • Integrate complex WebView-based components with bidirectional JavaScript bridge communication. • Collaborate with product and design to deliver polished, intuitive interfaces for a financial product where

trust and clarity are paramount. • Define mobile engineering standards — component architecture, state management patterns, testing

strategy, and performance benchmarks. • Drive code reviews, mentor team members, and champion best practices across the mobile team. • Participate in stabilization and release cycles — profiling, device matrix testing, and regression analysis. Must-Have

• 4+ years React Native experience with production apps on Google Play Store. • Strong TypeScript skills and deep understanding of React Native internals — bridge, native modules, and

performance optimization. • Experience with real-time data handling — WebSockets, efficient UI updates for streaming data, and

state synchronization. • Experience integrating WebView-based components with JS bridge communication. • Proficiency with state management at scale (Redux, Zustand, or MobX).

• Experience with push notifications (FCM), deep linking, and complex navigation patterns. • Strong debugging skills — Flipper, React DevTools, native crash analysis, and performance profiling. Nice-to-Have

• Prior experience building trading, brokerage, or fintech mobile apps. • Experience with charting library integration in mobile apps. • Knowledge of server-driven UI (SDUI) patterns. • Experience with feature flags, A/B testing frameworks, and app modularization. • Familiarity with native Android development (Kotlin) for bridge modules. Tech Stack

Framework React Native

Language TypeScript / JavaScript

State Management Redux / Zustand

Real-time WebSocket, SSE

Charting Charting library via WebView bridge

Testing Jest, Detox (E2E), device matrix testing (Android 10+)

Job Description

We are seeking a highly skilled Sr. Fullstack Mobile Developer with a passion for crafting exceptional mobile experiences and robust backend systems. This role demands a deep understanding of React Native, Node.js, and modern cloud ecosystems like AWS, combined with a commitment to best practices and continuous improvement.

As part of our team, you will work closely with cross-functional teams to design, build, and maintain high-performance mobile applications and scalable backend solutions for our clients. The ideal candidate is a team player with a growth mindset, a passion for excellence, and the ability to energize and inspire those around them.

Requirements

• Education: Bachelor’s degree in Computer Science, Engineering, or a related field.
• Experience: 4-6 years of professional experience as a Fullstack Developer, with at least 3 years in mobile development using React Native.
• Proven expertise in building and scaling mobile applications and backend systems in a services environment.
• Strong proficiency in Python or Node.js, AWS, and database technologies (SQL and NoSQL).
• Experience implementing CI/CD pipelines and automation tools.
• Deep knowledge of software engineering best practices, including clean code principles and test-driven development.
• Familiarity with AI copilots and a willingness to incorporate AI-driven tools into workflows.
• Excellent communication and collaboration skills, with the ability to inspire and influence teammates.
• Demonstrated growth mindset, passion for learning, and a commitment to excellence.
• A perfectionist attitude with an eye for detail and a drive to deliver outstanding results.
• Prior experience working with a services company is a must.

Benefits

• Creative Freedom: A culture that empowers you to innovate and take bold product decisions for client projects.
• Comprehensive Healthcare: Extensive health coverage for you and your family.
• Tailored Growth Plans: Personalized professional development programs to help you achieve your career aspirations.

Simply Fleet is a fast-growing SaaS solution to help automate an organization's fleet maintenance operations. You can learn more about our product by going to www.simply-fleet.com

We are looking for an enthusiastic and proactive Android developer to manage the app development of Simply Fleet on Android. The developer will work closely with the other members of the product team to build and maintain Simply Fleet's Android app.

What you will do:

• You should be proficient in Android development with Kotlin
• You should have a fair idea about web services
• You should be comfortable working with JSON
• You should have a strong knowledge of Android UI design principles, patterns, and best practices
• You should have a working knowledge of location services
• Knowledge of AWS S3 is a plus
• You should have an understanding of code versioning tools, such as Git
• You should have deployed apps on Google Play Console
• We expect you to be proficient in best coding practices like adding comments, using proper naming conventions, performing unit testing of your code, etc.
• You should be well versed in developing in Android Studio

Who you are?

• You should have 2+ years of experience in Android development
• You should be committed since we follow a hybrid model
• You are expected to be present in our physical office in Pune, MH twice a week
• You should be willing to take complete ownership of your work
• Above all, you should be able to think independently and creatively

You can expect a smooth onboarding process with structured timelines. You can expect teams that listen and learn. You can expect to be counted on, and you'll be given the freedom to do your best work. We build our product, our teams, and our company for the long haul, so you can build your career here if you choose to. This is your platform to be a part of a growing startup and to work with some really awesome folks. We will make sure you have fun along the way.

• Develop advanced and secure applications for Android phones and tablets
• Continuously discover, evaluate and implement new technologies, libraries for application to improve the functionality
• Keep eye on new technologies to maximize development efficiency
  Unit-test based coding for modular coding, reusability;
• Writing readable code; Maintain technical documentation
• Bug fixes and improving performance of existing applications
• Work on new ideas for products, it’s prototypes and estimates
• Collaborate on projects with a closely knit team