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About
A designed focused multi-product startup. We have over 100 Million users
We're building next Apple. If you are someone who is obsessed with building great products and wants to learn & grow faster, Apps10X would be the best place.
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Qualifications:
• 10+ years native mobile development (iOS Swift + Android Kotlin)
• Proven experience building mission-critical, offline-first applications
• Deep understanding of mobile architecture patterns (MVVM, Clean Architecture)
• Expert-level API integration and data synchronization strategies
• Experience with emergency services, healthcare, or field operations software (preferred)
• Strong debugging, performance optimization, and memory management skills
• Demonstrated leadership in establishing mobile development best practices
TECHNICAL EXPERTISE:
• iOS: Swift 5.x, SwiftUI/UIKit, CoreData, CoreLocation, Background Tasks
• Android: Kotlin, Jetpack Compose, Room, WorkManager, Location Services
• Tools: Xcode, Android Studio, Git, Figma, Firebase, TestFlight/Play Console
• CI/CD: Fastlane, GitHub Actions, or similar automation tools
• APIs: RESTful services, JSON parsing, authentication/authorization
• Testing: XCTest, Espresso, automated UI testing frameworks
Responsibilities:
CORE RESPONSIBILITIES:
• Architect mobile applications for First Due's emergency response platform serving Fire and
EMS agencies nationwide
• Lead mobile development initiatives for the Hyderabad development center
• Design offline-first architectures ensuring reliability in low-connectivity emergency
scenarios
• Collaborate with cross-functional teams across US and India time zones
• Establish mobile CI/CD pipelines, coding standards, and quality assurance processes
• Mentor developers on mobile best practices and First Due's technology stack
• Drive sprint planning, velocity tracking, and technical roadmap for mobile development
• Ensure HIPAA compliance and data security for patient care reporting features
Work Location: Hyderabad, India
Work mode: Work From Office
Senior Mobile App Developer (Android & iOS)
Location: Brookefield, Bangalore — Onsite
Engagement: Full-Time
Experience: 3+ Years
Job Description
We are seeking a highly skilled Senior Mobile App Developer/Consultant with strong hands-on experience in building, deploying, and maintaining mobile applications for both Android and iOS, with React Native as the primary development framework.
The ideal candidate must be proficient with React Native, Android Studio, Xcode, and the end-to-end iOS App Store deployment process. This is an onsite, full-time role suitable for professionals who can take ownership and deliver high-quality product-based mobile applications. Experience in product companies or the banking/fintech domain is a strong advantage.
Primary Tech Stack (Mandatory)
React Native (Primary Framework)
Android Studio (Java/Kotlin)
Xcode (Swift/Objective-C)
RESTful APIs & Integration Patterns
App Store & Play Store Deployment Processes
Key Responsibilities
Design, develop, and maintain mobile applications using React Native for both Android and iOS.
Work with native modules when required using Swift/Objective-C and Java/Kotlin.
Build and release iOS apps to the Apple App Store, including managing certificates and provisioning profiles.
Debug, troubleshoot, and enhance mobile applications.
Optimize app performance, stability, and responsiveness.
Collaborate with product, backend, and QA teams for smooth development workflows.
Apply best practices in UI/UX, security, and mobile architecture.
Prepare documentation and provide technical guidance as needed.
Required Skills & Qualifications
3+ years of hands-on mobile development experience.
Mandatory: Strong proficiency in React Native.
Hands-on experience with Android Studio and Xcode.
Expertise in Swift, Objective-C, Kotlin, or Java.
Proven experience in building and publishing iOS apps to the App Store.
Strong understanding of RESTful API integrations.
Good knowledge of mobile UI/UX principles.
Strong debugging and problem-solving abilities.
Ability to work independently and deliver within timelines.
Nice to Have
Experience with Flutter or native-only app development.
Product-based company experience.
Exposure to Banking / FinTech systems.
Understanding of App Store Optimization (ASO).
Work Details
Location: Brookefield, Bangalore (Onsite)
Working Days: Monday to Saturday (Alternate Saturdays Off)
Timings: 9:00 AM – 6:00 PM
Key Responsibilities
- Design, develop, test, and maintain Android applications using Kotlin and Jetpack Compose.
- Build responsive, reusable, and high-quality UI components using Compose.
- Implement clean architecture principles (MVVM/MVI) and Android best practices.
- Integrate RESTful APIs and third-party services.
- Collaborate with Product Managers, UX/UI Designers, QA Engineers, and Backend Developers.
- Optimize application performance, reliability, and scalability.
- Write clean, maintainable, and well-documented code.
- Conduct code reviews and mentor junior developers when required.
- Troubleshoot, debug, and resolve application issues.
- Stay updated with the latest Android development trends and technologies.
Required Skills & Qualifications
- Bachelor's degree in Computer Science, Engineering, or related field.
- 1+ years of Android application development experience.
- Strong proficiency in Kotlin.
- Hands-on experience with Jetpack Compose.
- Strong understanding of Android SDK, Android Architecture Components, and Material Design.
- Experience with MVVM architecture and Clean Architecture principles.
- Knowledge of Coroutines, Flow, and asynchronous programming.
- Experience with Dependency Injection frameworks such as Hilt or Dagger.
- Familiarity with REST APIs, JSON parsing, and networking libraries such as Retrofit and OkHttp.
- Experience with local databases such as Room.
- Proficiency in Git and version control practices.
- Understanding of unit testing and UI testing frameworks.
Preferred Skills
- Experience with CI/CD pipelines.
- Knowledge of Firebase services (Analytics, Crashlytics, Push Notifications).
- Familiarity with modularization and multi-module Android projects.
- Experience publishing applications to Google Play Store.
- Exposure to Agile/Scrum methodologies.
- Understanding of Android performance optimization and security best practices.
Technical Stack
- Kotlin
- Jetpack Compose
- Android SDK
● You need to be excited about the problem that we are trying to solve
● 4+ years of experience building applications in Native Android
(JAVA/Kotlin)
● Build pixel-perfect, buttery smooth UIs across both mobile platforms.
● Strong Js fundamentals - You should be able to contribute partially to
our existing React Native development as well
● Ability to give clarity and communicate well with the team, including
Product, Backend and Dev-Ops (if and when needed)
● Ability to use profiling tools well, getting to root causes of bugs fast
● Ability to pick and work on adjacent technologies if and when
required (Eg: If the best performance monitoring solution needs a
basic firebase setup, that should not be a blocker for you to go ahead
and do so)
● Maintain code and write automated tests to ensure the product is of
the highest quality.
● Reach out to the open-source community to encourage and help
implement mission-critical software fixes
● You need to be comfortable working in a remote environment (Good
internet connection and availability on phone is needed)
● Deep understanding of android architecture
● Understanding of inter app communication
● System design thinking
Good to have:
● Experience with React Native or similar Hybrid Frameworks
● Experience in Test Driven Development
● Ability to tell Product what creates better User Experience, ability to
tell backend what API responses will help the user get a faster load
time
● Inquisitiveness to understand the system as a whole, and not only be
stuck to your domain of expertise (Eg: Asking questions like why does
this particular response take so much time as compared to others,
and brainstorming with the backend engineer on how to improve on
it)
Perks:
● Competitive Salary
● Health insurance for you and your family
● Work timings - You are the master of your time. However, with great
freedom comes great responsibility. If you have committed
something to the team, we expect that you will give it your best to
make sure that commitment is done and is done on time
● Leave policy - Take a leave whenever for whatever reason you want.
No questions asked!
● Work remotely
-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
What do we do?
About MobileFirst: Mobile design & development studio focusing on great mobile app experiences. We have great exposure working with Startups, Enterprises and Design Studios. MobileFirst has worked with customers from the USA, India, UK, Kenya, and Israel.
We have catered to clients in Automobiles, Paints, Fashion, Sports, Transportation, Food, Music, Coupons, Smart Parking, Uber for X, etc.
What are we looking for?
- Android Developer with passion working on Android & Android NDK related challenges
- Exposure on Android Application development and deployment
- Minimum 2+ years experience is required on Android
- Must have uploaded 3 to 4 Android Applications
- Great command over Android Studio (Gradle-based development)
- Understanding of Android UI and new UI/ UX trends
- Understanding of Play Store, FCM is required
- Exposure to Kotlin is a plus.
What should you have?
- Amazing debugging skills and problem-solving abilities
- Skills of designing and developing advanced applications for the Android platform
- Bug fixing and improving application performance
- Knowledge of Opensource Libraries & Frameworks
- Command over algorithms, design trends & knowledge about popular applications on App
- Continuously discover, evaluate, and implement new technologies to maximize development efficiency
- Solid understanding of the full mobile development life cycle.
Who are we looking for?
- Tech Savvy. Fast learner. Leader.
- Creative self-starter who is comfortable with both taking initiatives and working in collaboration.
- We don't see your college degree or we don't care if you are a dropout.
Job Perks
- Great Fun Learning exposure
- Training and Seminars on new Technologies
- Startup Experience
- Flexible timings and "work from home" options
- Assignment Incentives
- Training on Vocabulary, Soft Skills, and Personality development
- Team Lunches, Team Outings, Hangouts, and Movies
Passion for all things Mobile and have built complex Mobile Applications with React Native for at least 2 years. Have shipped apps on either the iOS App Store or Android Play Store, and are intimately familiar with their workflows. Comfortable with jest for writing unit and integration tests / appium for end-end testing. Intuition for usability and UI design, with an ability to balance polish with the constraints of timing and scope. Curiosity to remain updated with the newest technologies and frameworks. Comfort with any of WebRTC/Backend Stack/React JS is a strong plus. Most importantly, love coding!
algorithms, and software engineering principles
• Passionate about creating great code
• Multiple years of experience in Android application development, with Java and/or
Kotlin. Kotlin experience is a major advantage.
• More than one published application on the Google Play store available for immediate
download and review by our team. Please provide names of all your apps that you've
worked with a brief description of your contribution (if not individually developed).
• Strong experience in building and publishing commercial applications to Google Play
store.
• Multiple years of in Java I/O, RDBMS, Networking, Generics and well-known
application frameworks.
• Solid Understanding of Android design principles and interface guidelines.
• Experience with performance and memory tuning using tools
• Experience coding with RESTful APIs to connect applications to back-end services.
• Great team player who works well in collaborative situations
• Experience with iOS app development is a major plus. Experience with cross-platform
tools would be an advantage
• Experience with tools like Git, Jira, Basecamp, BitBucket, Azure DevOps would be an
advantage.
• Good to have experience working with IOT projects, Bluetooth technologies
• Active Open Source, GitHub or Stack Overflow contribution will be a big plus
• Having personal apps in play store will be an added advantage
• Working knowledge of the general mobile landscape, architectures, trends & emerging
technologies.













