Senior Software Engineer

Job Title: Senior / Lead React Native Developer

Location: Bangalore

Experience: 5+ Years

Employment Type: Full-time

About Nubra

Nubra is an all-in-one trading platform designed for modern traders from stock scalpers to options strategists. It brings together powerful tools like advanced option chain, multi-leg strategy builder, chart-led execution, real-time market data, and smart alerts into a single seamless experience.

With features such as API access, automated Flexi orders, tick-level data, and institutional-grade charts, Nubra enables users to analyse, build, and execute trading strategies efficiently in real time.Built for performance and scale, Nubra focuses on delivering low-latency, reliable, and data-driven trading experiences.

Role Summary

We are looking for a Senior / Lead React Native Developer with 5+ years of experience in frontend and mobile application development, with deep expertise in JavaScript and modern frontend technologies.

You will lead the React Native engineering efforts, drive architecture decisions, and build high-performance, scalable mobile applications used by large-scale user bases.

Key Responsibilities

Mobile Application Development

• Design, develop, and maintain high-quality mobile applications using React Native
• Write clean, modular, and scalable code
• Ensure applications are optimized for performance, responsiveness, and reliability
• Collaborate with product, design, and backend teams to deliver features end-to-end

Performance Engineering

• Optimize React Native applications for high performance at scale
• Identify and resolve memory leaks, UI lag, frame drops, and rendering issues
• Improve application startup time and runtime performance
• Optimize JS thread, UI thread, and native bridge interactions
• Debug using tools such as Android Studio Profiler, Xcode Instruments, React Native tools, and Flipper

Real-Time Data & Networking

• Implement systems for real-time data updates
• Work with WebSockets, gRPC, REST APIs, and streaming systems
• Handle high-frequency data updates efficiently

Architecture & Engineering Practices

Lead scalable mobile architecture design

• Define and enforce coding standards and best practices
• Work with Redux, Zustand, MobX
• Ensure code quality, testing, and maintainability

Native Integration

• Work across Android and iOS platforms
• Integrate native modules using Kotlin/Java and Swift/Objective-C
• Experience with React Native New Architecture (TurboModules, JSI, Fabric)

UI/UX Engineering

• Build pixel-perfect, responsive interfaces
• Optimize complex UI components and animations
• Work with Reanimated and Gesture Handler

Team Leadership

• Lead and mentor developers
• Conduct code reviews and design discussions
• Drive technical roadmap and architecture decisions
• Solve complex engineering challenges

Required Skills

Core

• 5+ years in frontend/mobile development
• 4 years with React Native
• Strong JavaScript and TypeScript expertise
• Deep understanding of modern frontend practices

Mobile Development

• Strong React Native internals knowledge
• Android & iOS debugging experience
• Experience building production-grade apps

Performance

• Expertise in optimizing large-scale mobile apps
• Knowledge of memory, rendering, and network optimization
• Experience with profiling tools

Networking

WebSockets, gRPC, REST APIs, streaming architectures

Tools

Git, CI/CD pipelines, code quality tools, automated testing

Good to Have

• Experience in fintech, trading, or real-time data applications
• Experience with protobuf or binary protocols
• Handling large concurrent user bases
• Knowledge of mobile security best practices