Sr. React Native Mobile Application Developer

Job Title: React Native Developer

Location: On-site (Uttamnagar, Nawada, Near Nawada Metro Station)

Type: Full-time

Experience: 1–3 years

Must-Have Skills:

• React Native with strong knowledge of JavaScript (ES6+) and TypeScript
• State Management using Redux Toolkit / Context API
• API Integration using Axios and REST APIs
• Firebase (Authentication, Realtime DB, Push Notifications)
• Navigation using React Navigation
• Debugging using Flipper and Chrome DevTools
• Play Store and App Store Deployment
• Version Control using Git & GitHub

Job Overview:

Now, we are seeking a skilled Kotlin Developer with around 2+ years of experience to join our team. The ideal candidate will be responsible for developing and maintaining high-performance Kotlin-based applications while ensuring best practices in architecture, security, and performance optimization.This is your chance to make an impact, and we’re here for it.

Key Responsibilities:

● Develop, enhance, and maintain Kotlin-based applications.

● Work with local databases such as Room, SQLite, and Realm for efficient data storage.

● Integrate API services using Ktor, Retrofit, and OkHttp for RESTful and GraphQL-based communications.

● Implement Kotlin Coroutines & Flow for asynchronous programming.

● Follow Clean Architecture and MVVM/MVI principles for scalable and maintainable code.

● Optimize application performance, security, and responsiveness. Write and maintain unit and integration tests to ensure application stability.

● Stay updated with Kotlin, Jetpack components, and the latest industry best practices.

What We're Looking For:

● 2+ years of experience in Kotlin development (Android or KMM).

● Strong knowledge of local database management (Room, SQLite, Realm, or SQLCipher).

● Expertise in API service integration using Ktor, Retrofit, or OkHttp.

● Hands-on experience with Kotlin Coroutines & Flow for efficient asynchronous programming.

● Strong understanding of Jetpack components (LiveData, ViewModel, Navigation, WorkManager, etc.).

● Experience in designing applications following Clean Architecture, MVVM, or MVI patterns.

● Knowledge of dependency injection frameworks like Dagger/Hilt or Koin.

● Proficiency in version control systems (Git) and platforms like GitHub, GitLab, or Bitbucket.

● Experience with unit testing using JUnit, MockK, or Espresso.

● Understanding of performance optimization techniques for Kotlin applications. 

Opportunity:

Create a consumer facing front end application that will be used by millions of users. 

What you will do:

• Develop our mobile apps using Swift/ObjectiveC.
• Work with backend, frontend, and other developers to build out a customer-centric experience that will constantly evolve.
• Work with our designers and customer success team to create a seamless user experience.
• Respond to support team tickets as needed to resolve bugs and issues.
• Participate in contributing ideas, updates, and product development areas to the team.

Experience Range: 

3-5 years with technical hands-on experience in building a consumer mobile app. You must have shipped an app to the stores.

Technical Expertise:

• 3-5 years experience with iOS native apps.
• Strong knowledge of Swift and ObjectiveC.
• Strong command of JavaScript ES6.
• Know how to build (fairly) complex layouts without using any CSS frameworks.
• Strong problem solving and analytical skills using data structures.
• Comfortable in a fast-paced startup environment.
• Bias for action shipping quality code quickly.

B.Tech./MCA
3+ experience as an app developer.
Proficient in Objective-C, Swift, and Cocoa Touch.
Extensive experience with iOS Frameworks such as Core Data and Core Animation.
Knowledge of iOS back-end services.
Knowledge of Apple’s design principles and application interface guidelines.
Proficient in code versioning tools including Mercurial, Git, and SVN.
Knowledge of C-based libraries.
Familiarity with push notifications, APIs, and cloud messaging.
Experience with continuous integration

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

• Good in Hybrid, Native Mobile development, and associated development frameworks SDKs.
• Good knowledge in one of the design component frameworks library – (React Native UI Components Library, Material UI, Native UI Components library)
• Stronghold in HTML and CSS or related design libraries like bootstrap, fluid layout system, grid layout system, Flexi layout system)
• Stronghold in repo management system – (Preferred GIT)
• Good to have knowledge on deployment and packaging application to play store or app store.
• Good to have knowledge on deployment and packaging application to play store or app store.
• Good at React Native with a minimum of 3 years of experience in IT.
• Good at React Js/Redux is preferred
• Good Hybrid mobile development is required
• Good at databases – Relational or NoSQL.
• Interface with clients via Slack, Zoom, and email.
• Work with modern tools including Jira, Slack, GitHub, etc