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+)

Company Description

Sciflare Technologies Pvt. Ltd. is a 10+ years dynamic and innovative IT and software development company located in Chennai. With a strong presence in the US, Europe, and UAE, we specialize in various domains, including AI, Gaming, Banking, Fintech, Fantasy Sports, IT, E-commerce, Logistics, Healthcare, and On-Demand Services. Our team of over 40 talented professionals is dedicated to delivering cutting-edge solutions that drive our clients' success. Our top clients include Provident Bank, Century Financial, HDFC Life, The New Indian Express, Cisco, and EROS Group.

Join us and be a part of a company that thrives on creativity, technology, and excellence.

CHANCE TO WORK WITH APPS WITH 10LAKH CONCURRENT USERS IN GAMING INDUSTRY

Role Description

• You are a champion at Code reviews and Unit/Mock/integration Tests
• You have a strong sense of ownership of what you design and deploy
• You provide strong technical mentorship to team members
• You are an excellent team player
• You continuously learn and improve

We are seeking a highly motivated and experienced Senior React Native Engineer to join our team. In this role, you will lead and manage software development projects across diverse domains such as Gaming, Banking, Fintech, Fantasy Sports, IT, E-commerce, Logistics, Healthcare, and On-Demand Services. You will be responsible for ensuring the successful delivery of projects, meeting deadlines, and exceeding client expectations.

Skill Sets

• Startup Experience: Proven track record of taking ownership of projects and delivering impactful results in a startup environment.
• Relevant Experience: 3-9 years of experience in mobile app development, with a strong focus on building high-performance, scalable, and maintainable React Native applications.
• React Native Expertise: Extensive experience with React Native, including deep knowledge of its ecosystem, libraries, and tools.
• JavaScript & TypeScript: Proficiency in JavaScript and TypeScript, with experience in writing clean, maintainable, and efficient code.
• Mobile Development: Hands-on experience in developing cross-platform mobile applications for both iOS and Android, with a strong understanding of platform-specific guidelines and best practices.
• State Management: Proficiency with state management solutions such as Redux, MobX, or Context API.
• APIs & Integration: Experience integrating with RESTful APIs and GraphQL endpoints, with a strong understanding of asynchronous data fetching and state management.
• UI/UX Design: Strong understanding of UI/UX principles and experience working with designers to implement user-friendly interfaces and improve app usability.
• Testing & Debugging: Experience with mobile testing frameworks and tools such as Jest, Detox, or Appium. Skilled in debugging and performance optimization for mobile applications.
• Version Control & CI/CD: Experience with Git, pull requests, and CI/CD pipelines. Familiarity with tools like GitLab, GitHub, or Bitbucket.
• Agile Practices: Experience working in Agile environments, with a solid understanding of SCRUM and related methodologies.
• Collaboration & Communication: Excellent teamwork and communication skills, with the ability to collaborate effectively in a remote or distributed team setting.
• Solutions-Oriented: Ability to tackle complex problems with a solutions-oriented mindset, adapting to the fast pace and challenges of startup life.

Responsibilities

• Scalable Architecture: Lead the design and implementation of scalable mobile architectures that ensure performance, reliability, and maintainability of React Native applications.
• Informed Decisions: Make architectural and technical decisions that align with the companys business objectives and technical strategy.
• Code Quality & Standards: Maintain high standards of code quality through regular code reviews, adhering to best practices and industry standards.
• User Experience: Work closely with UX/UI designers to ensure that applications provide a seamless and engaging user experience.
• Performance Optimization: Optimize mobile applications for speed, responsiveness, and efficiency, ensuring a smooth user experience across both iOS and Android platforms.
• Testing & Debugging: Implement comprehensive testing strategies to identify and address issues early in the development cycle, ensuring reliable and high-quality releases.
• Collaboration: Collaborate with product managers, designers, and other developers to understand user requirements and deliver features that meet user needs and project goals.
• Continuous Learning: Stay current with the latest trends, technologies, and best practices in React Native and mobile development to drive innovation and improvement.
• Autonomy: Take ownership of projects and tasks, working independently and effectively without the need for constant supervision.
• Simplicity: Strive for simplicity and elegance in your code and solutions, avoiding unnecessary complexity.
• Proactive Problem Solving: Anticipate and address potential issues before they arise, contributing to the overall success of the team and project.
• Solution-Oriented: Focus on delivering practical solutions to problems, going beyond just writing code to contribute to the overall success of the product.

Life@Sciflare:

• An exciting & lively workplace gives you the chance to work in an environment where you may unleash your creativity and inventiveness to the best extent possible.
• Work in a collaborative setting where your cooperative team contributes new perspectives to your objectives and forges strong bonds.
• Growth mindset: You are nurtured through each stage of your professional advancement by learning and unlearning new things.

The role is office-based, working from Monday to Friday 9:00 AM to 06:00 PM & all Saturdays & Sundays are off.

Role: As a part of the Engineering team, you will be responsible for driving the mobile App development end-to-end. In this role, you will be working to find creative solutions that improve our customer’s experience and brand reputation when facing technical issues on the platform. You will be responsible for tracing and monitoring real-time transactions through various systems end-to-end, displaying key information, and provided with controls necessary to mitigate incidents.

• Minimum 4-5 years experience in developing mobile applications
• Excellent understanding of software design and object-oriented programming principles.
• Minimum experience of 1.5 years on Flutter, 
• Good knowledge about clean code architecture.
• Knowledge on writing Unit test cases
• Hand-on experience in widget building, its lifecycle, and inbuilt widgets provided by flutter.
• Hands-on experience in API integration in flutter.
• Hands-on experience with local storage, shared preferences, session management.
• Knowledge of Flutter performance and optimization
• Knowledge about architectural differences between ios/android and how flutter handles them.
• Good to have knowledge on Financial domain
• Good to have experience in financial industry/Fintech 
• expirience on doing android release

React Native Role :

We are looking for a qualified React Native developer to join our Engineering team. Ultimately, you should be able to design and build the next generation of our mobile applications.

What is expected of our App Developers?

1. Understand the healthcare context and identify key problems
2. Innovate, evaluate, and deploy various android and IOs Features that can solve complex healthcare needs
3. Ability to take extreme ownership over your work. Every day is a challenge to ensure you are performing to the expectations you and your team have agreed upon, both in regards to estimates and to general process. An understanding of React Native best practices and acommitment to following them.
4. Ability to create and maintain continuous integration and delivery of applications.
5. A positive mindset and can-do attitude.
6. Forensic attention to detail.

Qualifications:

1. Bachelor’s degree in CS/IS.
2. Experience with React Js, React Native, JavaScript including DOM Manipulation and

JavaScript object model.

1. Thorough understanding of React Native and its core Principles.
2. Hands on experience on React Native Framework at least 2 years.
3. Good Knowledge of HTML5, CSS.
4. Familiarity with code versioning tools (Such as Git, SVN or Mercurial)
5. Familiarity with RESTful APIs
6. Familiarity with modern front-end build pipelines and tools.
7. Experience with common front-end development tools such as Babel, Web pack, NPM etc.

10.Experience with Native Mobile app deployment on App store and google play store.

Responsibilities

• Work as part of a small team to build Flutter application.
• Architect, build and maintain an excellent mobile application with clean code.
• Build pixel-perfect, buttery smooth UIs across both mobile platforms.
• Implement clean, modern, smooth animations and transitions that provide an excellent user experience.
• Integrate third-party API's.
• Write unit and integration tests.
• Release applications to the Apple and Google Play stores.
• Ability to take absolute ownership over assigned work.

Requirements

• 2 - 3 years of professional mobile application development experience.
• 2+ years of professional experience working with Flutter.
• Extensive knowledge of Dart language and ecosystem.
• Understanding of Restful API and experience on various client libraries.
• Proficient understanding of code versioning tools, such as Git.
• Meaningful experience working in a startup environment.

• Developing new user-facing features using React Native and React.js
• Building reusable components and front-end libraries for future use
• Translating designs and wireframes into high-quality code
• Optimizing components for maximum performance across a vast array of devices and browsers

What is required

• 1+ years of experience
• Strong proficiency in JavaScript, including DOM manipulation and the JavaScript object model
• Strong experience in React Native and/or React JS and their core principles
• Ability to take ownership of code as well as the end to end functionality
• Experience with popular workflows (such as Flux or Redux)
• Experience with middleware for API calling( such as Saga or Thunk)
• Familiarity with RESTful APIs
• Familiarity with modern front-end build pipelines and tools
• Experience with common front-end development tools such as Babel, Webpack, Yarn, NPM, etc.
• Familiarity

We are looking for an iOS developer responsible for the development and maintenance of applications aimed at a range of iOS devices including mobile phones and tablet computers. Your primary focus will be development of iOS applications and their integration with back-end services. You will be working alongside other engineers and developers working on different layers of the infrastructure. Therefore, a commitment to collaborative problem solving, sophisticated design, and the creation of quality products is essential.

Responsibilities:

• Design and build applications for the iOS platform
• Ensure the performance, quality, and responsiveness of applications
• Collaborate with a team to define, design, and ship new features
• Identify and correct bottlenecks and fix bugs
• Help maintain code quality, organisation, and automation.

Requirements:

• Proficient with Swift 4 (depending on project requirements), and Cocoa Touch
• Experience with iOS frameworks such as Core Data, Core Animation, etc.
• Experience with Online/Offline storage, threading, and performance tuning
• Familiarity with RESTful APIs to connect iOS applications to back-end services
• Knowledge of other web technologies and UI/UX standards
• Understanding of Apple's design principles and interface guidelines.
• Knowledge of low-level C-based libraries is preferred.
• Familiarity with cloud message APIs and push notifications
• Knack for benchmarking and optimisation
• Proficient understanding of code versioning tools (such as Git, Mercurial or SVN)
• Familiarity with continuous integration