Mobile Application - Sr. 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+)

React Native Developer (Full-Time)

📍Work from Office – Malad, Mumbai

We are hiring a React Native Developer for Websites.co.in, a platform used by millions of businesses to create their websites in minutes. You will build and improve our mobile experience used by small business owners globally.

Your role:

• Build and maintain mobile apps using React Native
• Implement clean, reusable components and UI screens
• Integrate REST APIs and handle JSON data efficiently
• Work on app performance, loading speed, and smooth UX
• Debug issues, fix crashes, and improve app stability
• Collaborate with product, backend, and QA teams to ship features
• Participate in testing, code reviews, and release cycles

What we expect:

• Strong understanding of JavaScript and React Native basics
• Familiarity with navigation, state management, and component lifecycle
• Hands-on experience with APIs, third-party libraries, and async storage
• Knowledge of Git for version control
• Problem-solving mindset and ability to work independently
• Bonus: experience with Redux / Context API, Android or iOS builds, or publishing apps
• 0–3 years of experience (freshers with good projects can apply)

What you get:

• Real ownership on a live, large-scale SaaS product
• Fast-paced growth environment with hands-on learning
• Opportunity to grow into a core mobile or full-stack role

Responsibilities :

- You will be responsible for designing, implementing, developing, testing, and supporting the tagging solutions on our products to deliver accurate and scalable marketing data. Below are few pointers of routine

-You will be responsible for implementing digital tagging for data capture to track digital marketing efforts to determine brand and campaign effectiveness

-You will develop and modify JavaScript code to execute web analytics best practices

-You collaborate & do thorough research to ensure implementation requirements were met

-You validate and debug implementations using GTM debugger

-You should able to perform app analytics, debugging skill , issue resolutions in app.

-You should have knowledge of Firebase or any other app Analytics tool.

-You should able to perform mobile application testing.

-You demonstrate an understanding, and proactivity in seeking new & innovative solutions for implementing code to capture the desired metrics and solve business problems.

-You keep up to date with competitor information, tools, best practices and market trends; identifying business opportunities for organisations.

Job Requirenments :

- Knowledge of Google Tag Manager and Google Analytics is plus

-Proficiency in HTML, JavaScript, and jQuery

-Understanding of 1 or more debugger tools (Preferred chrome console, Alternatives: charles, chrome plugin debugger tools, etc)

-Highly analytical qualities with strong technical, strategic, and problem-solving skills

-Candidates who knows Android/iOS will be preferred

-Excellent communication

Job Title: Senior Mobile Engineer (React Native) at Learning Technologies Pvt. Ltd.

Location: Bengaluru, Karnataka, India

About Learning Technologies Pvt. Ltd.it is India's pioneering social trading network, dedicated to democratising financial markets and generating wealth for individuals at the bottom of the pyramid. Our mission is to provide millions of retail investors with access to top-notch trading and risk management expertise, completely free of charge.

Job Description: As a Senior Mobile Engineer specialising in React Native, you will play a vital role in developing cross-platform mobile applications. Working within a pod structure alongside 2-3 engineers, you will provide technical leadership, overseeing code reviews for your pod as well as those of other pod-leads. Emphasising a culture of daily pull requests, you will advocate for small and specific code submissions to ensure a streamlined code review process. Your dedication to clean and efficient code, coupled with your drive to foster a strong tech culture, will be essential to your success. We are seeking someone who thrives on solving problems, embraces learning new technologies, and has a keen eye for exceptional UI and UX design.

Responsibilities: - Utilise the React Native stack to build cross-platform mobile applications. - Provide technical leadership to your pod, conducting thorough code reviews. - Foster a culture of multiple daily pull requests, encouraging small and specific code submissions. - Maintain a strong commitment to clean and efficient code. - Drive the establishment of a robust tech culture within the company. - Demonstrate a willingness to learn new technologies and a passion for problem-solving.

Requirements: - Proficiency in React Native is essential, with additional experience in native development highly desirable. - Minimum of 2 years' experience developing production-level apps in React Native. - Strong architectural understanding of implementation, not limited to UI features. - Experience in taking a product from concept to market launch is highly valued. - Exceptional taste in UI and UX design, with a focus on a user-centric approach. - Self-motivated and driven to succeed, with a passion for continuous learning. - Ability to effectively solve problems encountered along the development path.

About: We are committed to building India's first social trading platform, enabling individuals to harness the power of community in their investments. By leveraging the collective social capital of our community, we strive to make financial markets truly inclusive and democratic, catering to the next 100 million users and providing solutions for their trading needs. As a retail investor, you will have access to the expertise of the best traders within our community, free of charge. Additionally, you will become part of an integrated community and have the opportunity to expand your knowledge of the markets. For talented traders, offers a platform to showcase your skills, gain a wide audience, and monetize your expertise. We believe in a win-win scenario for all, and our well-funded Series A startup is backed by leading institutional and angel investors, including Accel Partners, India Quotient, Titan Capital, and co-founders of prominent startups like Unacademy, Udaan, Cred, and Grow. Our strong tech team, composed of co-founders with illustrious career paths, has united to solve the next significant challenge in the Indian financial markets.

Who You Should Be: - Enthusiastic about creating something from scratch and influencing the growth of Indian financial markets for the next five years, reaching the next 100 million users. - Fully committed to the success of the product, treating it as your own and going the extra mile to ensure its triumph without external prompts. - Driven by a perpetual thirst for knowledge and personal growth, embracing learning through practical application. - A problem solver who thrives on overcoming

JOB DESCRIPTION: 

-Firm grasp of the JavaScript language and its nuances, including ES6+ syntax  

-Build pixel-perfect, smooth UIs across both mobile platforms  

-Leverage native APIs for deep integrations with both platforms  

-Diagnose and fix bugs and performance bottlenecks for performance that feels native  

-Knowledge of functional and object-oriented programming 

-Strong knowledge and experience in either iOS or Android native application development  

-Familiarity with native build tools, like XCode, Android Studio  

Key responsibilities: 

• 1-2 years experience in React-Native based app development
• 1-3 years experience in Mobile app development (React-Native + iOS)
• Hands on experience in Redux
• Knows how to embed React-Native in a native (iOS/Android) component and vice versa
• Strong hold on JS/ CSS fundamentals
• Development experience of UI (layouts, animations, etc.) 
• Experience of customizing libraries
• Good understanding of Design and Architecture Patterns 
• Strong focus on app performance

Must have:

• Experience in iOS development
• Willingness to learn and work in React Native 

Good to have:

• Experience in unit testing 

Dear all,

CONTUS is looking for an ever-growing team with young brains in majority and a couple of senior experts to guide them. A fun-filled group that learns by doing things and love what they do. Opportunities are wide as we not only take up client projects but churn out own apps as well.

Why should you choose Contus?

• A great platform to learn and work in complex full stack development projects Angular, React, Node, Laravel which can take to the next level.
• Attractive perks as per Industry standards & Essential benefits
• Five days of work in a week with flexible work timings.
• A great opportunity to handle Enterprise Accounts across the globe and to manage projects in Internet of Things(IoT), Block-Chain, Full Stack development, Enterprise Mobility, DevOps, Agile and a lot more to keep yourself updated on current trends
• Enterprise accounts includes leading Automobile, Network Security, Truck, Construction, Embedded Electronics oriented clients all over the world which seeks our help in Digital Transformation

CONTUS 11                   - https://www.youtube.com/watch?v=sOC62PTw2MU">https://www.youtube.com/watch?v=sOC62PTw2MU   

CONTUS Awards 2018  - https://www.youtube.com/watch?v=EX8NEQFQ60s&;t=50s">https://www.youtube.com/watch?v=EX8NEQFQ60s&;t=50s   

Designation : Application Developer / Sr.Application Developer / Tech Lead - Android

Mode of Employment : Permanent

Salary : Industry Standards + Benefits (Medi-Claim Insurance & Accidental Policy)

Work Location : Guindy, Chennai

Working days :Monday to Friday 9.30 AM to 6.30 PM (Flexible 8 Hours)

Venue Details:

Kamak Towers, 12A,(SP), 6th floor,

Thiruvika Industrial Estate, Ekkatuthangal, Guindy, Chennai - 32.

Land Mark: Behind Olympia tech Park.(3rd right)

Note:

*** Candidates attended in 3 Months of duration are not eligible to apply again *** 

Job Summary :--

An ever-growing team with young brains in majority and a couple of senior experts to guide them. A fun-filled group that learns by doing things and love what they do. Opportunities are wide as we not only take up client projects but churn out own apps as well.

Responsibilities:-

*Develop and create applications for client projects and in-house requirements.

*Make use of Android frameworks to create UI faster, take control/understand client projects from start to end.

*Deliver the projects successfully in-time with quality.

*Stay updated on the latest industry trends, development practices and evolving mobile technologies.

What we look for :-

Good analytical and programming skills in Java, Android 2.2 + SDK/NDK Development (Web Services & API's, LBS, UI and XML, Layout Design, Social Network Integration, Content Providers etc.), XML, JSON, SQLite3 and MySQL.

Handful experience in tools like Android Studio, Eclipse and analytical tools like Find Bugs and PMD.

Basic knowledge about Hybrid Application and ideas on publishing applications in Android Market.

Knowledge of PHP-driven CMSes & versioning tools like SVN will be added an advantage.

Should be able to do Client Interaction

Expertise in design and development of applications to Android devices / platform.\

Maintain quality and ensure responsiveness of applications.

Hands on experience with Android Studio, APIs and Database usage.

Expertise in automated test tools for Android application.

Exposure to UI design principles and best practices.

Knowledge of open-source Android ecosystem and the available libraries.

Experience in NDK/C++/Java/Android framework.

Hands on experience with SCM tools and services such as Git, Gitlab, gerrit, SVN, others

Familiarity with open source tool chains.

Other GUI design tools and framework experience desirable. 

The following are the criteria, that we expect experienced candidates to meet.

1. Strong in OOPS concepts and must know how to incorporate them in projects.
2. Must have through understanding of all these android components. (Activities, Fragments, Service, Intent Service, Broadcasts, AsyncTasks, SQLite, Push Notifications)
3. Must have strong understanding of data structures of the Java's Collections API. (List, Map, Set, Queue)
4. Must be comfortable in writing multi-threaded and thread safe applications.
5. Must be familiar with design patterns (MVP, MVVM).
6. Should be comfortable using Android Profiler for tracking memory, network and cpu usage.
7. Should be familiar with writing applications for portrait and landscape orientations.
8. Added advantage if the candidate can code in kotlin.
9. Added advantage if the candidate has knowledge on XMPP, Socket, Webrtc, VOIP, BLE, Bluetooth Classic.

Kindly prepare on below topics well;

OOM

JVM

Multithreading, Overriding, Overloading

Abstraction, async task,

Main thread, Services

About CONTUS :-

CONTUS started providing digital transformations solutions and services since 2008, even before the actual digital transformation era started. Today after a proud 11 years of successful existence, Contus is consciously driven by the future of Digital techs, not by the current or legacy techs. 

The solutions and services of Contus have connected millions of devices and people and hearts across the globe right from heartbeats monitors to Televisions to Cars & trucks to smart cities, with it's Over The Top (OTT) Video on Demand and messaging solutions and also with its full stack IOT enablement services.  

With hundreds of digital engineers @Contus, we have enabled millions of end users to connect for elaborate used cases in more the 50 countries.

To know more about us, visit http://www.contus.com/">www.contus.com, a leading mobile application development and web development company