Kotlin Developer

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

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. 

Full Stack Engineer ( React Native)

Experience: 1- 5 Years

Work Location: Hyderabad

Skillset: React Native, Node JS, React, MongoDB & AWS

If you have it in you to build dynamic web architecture, APIs and databases in a stimulating, fast-paced environment, then please give us a shout out. You will be a part of an extremely passionate team at Goldstone that is researching and creating smart solutions based on next-gen cognitive technologies.

You will get a chance to work on exciting projects at our state-of-the-art office, grow along with the company and be fruitfully rewarded for your efforts!

Requirements:

• Minimum 1 years of experience in React Native.

• Integration of Rest APIs in react native.

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

• Knowledge of functional and object-oriented programming

• Ability to write well-documented, clean JavaScript code

• Rock solid at working with third-party dependencies and debugging dependency conflicts

• Familiarity with native build tools, like XCode, Gradle, Android studio and IntelliJ

• Proficient understanding of releasing and monitoring apps on IOS App store, Play store.

• Should be able to communicate to backend developers on API building and modifications needed.

• Testing and releasing builds Experience in application testing software’s Appium is preferable.

• Understanding of REST APIs, the document request model, and offline storage

• Experience with automated testing suites, like Jest or Mocha

• Experience with handling production mobile apps.

• Experience with performance testing and optimization.

Responsibilities:

You’ll

• We are looking for a React Native developer interested in building performant mobile apps on both the iOS and Android platforms.

• You will be responsible for architecting and building these applications, as well as coordinating with the teams responsible for other layers of the product infrastructure.

• Building a product is a highly collaborative effort, and as such, a strong team player with a commitment to perfection is required.

• Build pixel-perfect, buttery 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.

• Reach out to the open-source community to encourage and help implement mission-critical software fixes—React Native moves fast and often breaks things.

• Maintain code and write automated tests to ensure the product is of the highest quality.

• Transition existing React web apps to React Native.

Skills:

Core JAVA(Native), Core Kotlin, Sqlite, MySQL, XML
Developed Android Application
Use of Kotlin and Java
Knowledge of Core java and Core Kotlin must

Role Description for the 3 month internship:-

• Create multi-platform apps for iOS & Android using Google's new Flutter development framework
• Strong OO design and programming skills in DART and SDK Framework for building Android as well as iOS Apps.
• Good expertise in Auto Layout and adding constraints programmatically
• Must have experience of Memory management, caching mechanisms., Threading and Performance tuning.
• Familiarity with RESTful APIs to connect Android & iOS applications to back-end services
• Experience with third-party libraries and APIs
• Collaborate with the team of product managers, developers, to define, design, & deploy new features & functionality
• Build software that ensures the best possible usability, performance, quality, & responsiveness of features
• Work in a team following agile development practices (Scrum)
• Proficient understanding of code versioning tools such as Git, Mercurial, or SVN, and Project Management tool (JIRA)
• Utilize your knowledge of the general mobile landscape, architectures, trends, & emerging technologies
• Get Solid understanding of full mobile development life cycle and make use of the same
• Help Develop and Deploy Good Quality UI
• Solid understanding of the full mobile development life cycle.
• Good written, verbal, organizational and interpersonal skills
• Unit-test code for robustness, including edge cases, usability, and general reliability.
• Excellent debugging and optimization skills
• Strong design, development and debugging skills.