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JOB DETAILS:

- Job Title: Lead II - Software Engineering- React Native - React Native, Mobile App Architecture, Performance Optimization & Scalability

- Industry: Global digital transformation solutions provider

- Experience: 7-9 years

- Working Days: 5 days/week

- Job Location: Mumbai

- CTC Range: Best in Industry

Job Description

Job Title

Lead React Native Developer (6–8 Years Experience)

Position Overview

We are looking for a Lead React Native Developer to provide technical leadership for our mobile applications. This role involves owning architectural decisions, setting development standards, mentoring teams, and driving scalable, high-performance mobile solutions aligned with business goals.

Must-Have Skills

• 6–8 years of experience in mobile application development
• Extensive hands-on experience leading React Native projects
• Expert-level understanding of React Native architecture and internals
• Strong knowledge of mobile app architecture patterns
• Proven experience with performance optimization and scalability
• Experience in technical leadership, team management, and mentorship
• Strong problem-solving and analytical skills
• Excellent communication and collaboration abilities
• Proficiency in modern React Native development practices
• Experience with Expo toolkit and libraries
• Strong understanding of custom hooks development
• Focus on writing clean, maintainable, and scalable code
• Understanding of mobile app lifecycle
• Knowledge of cross-platform design consistency

Good-to-Have Skills

• Experience with microservices architecture
• Knowledge of cloud platforms such as AWS, Firebase, etc.
• Understanding of DevOps practices and CI/CD pipelines
• Experience with A/B testing and feature flag implementation
• Familiarity with machine learning integration in mobile applications
• Exposure to innovation-driven technical decision-making

Skills: React native, mobile app development, devops, machine learning

******

Notice period - 0 to 15 days only (Need Feb Joiners)

Location: Navi Mumbai, Belapur

Position: iOS Developer (1 to 4 years)

Location: Marol, Andheri East, Mumbai

Company: Big Rattle Technologies Private Limited

Open for candidates from Mumbai only

Immediate Joiners only

We are looking for an iOS developer having 1 to 4 years of experience. You must have experience in delivering at least 3-4 projects on iOS as a part of your work profile.

Required Skills (more the better):

• Native iOS Application Development with SwiftUI, iOS SDK, Xcode, Cocoa Layer, Media Layer, Core Service Layer, Core OS Layer, iOS Frameworks, iOS Developer Tools, iOS programming, iOS Human Interface.
• Experience with iOS frameworks such as Core Data, Core Animation, Core Graphics, and Core Text
• Familiarity with RESTful APIs to connect iOS applications to back-end services.
• Experience with third-party libraries and APIs (e.g., Alamofire, Firebase, etc.).
• Deployment/ publishing apps in Apple App Store.

Good to have Skills:

• Understanding of Objective-C.
• Knowledge of mobile security and secure coding practices.
• Hybrid mobile application development using Flutter.

Additional Skills:

• Versioning tools such as Git, Bit Bucket, and concepts like branching
• DevOps: Knowledge of operating systems, hosting and deployment on cloud platforms like Amazon Web Services, Google Cloud, Azure etc will be added advantage

Responsibilities will include:

• Developing applications for iPhone and iPad
• Reviewing new releases, SDKs and updates in the mobile space
• Writing clean, well-designed code
• Debugging code and fixing bugs
• Ensuring code quality and security by following industry standards
• Managing code repositories and deploying builds
• Contributing to all phases of the development lifecycle
• Participating in team meetings and client meetings/ calls
• Learning new technologies

Required Qualifications:

• Bachelor’s or Master’s degree in Computer Science, Information Technology, or related field.

Why should you join Big Rattle?

Big Rattle Technologies specializes in AI/ ML Products and Solutions as well as Mobile and Web Application Development. Our clients include Fortune 500 companies. Over the past 13 years, we have delivered multiple projects for international and Indian clients from various industries like FMCG, Banking and Finance, Automobiles, Ecommerce, etc. We also specialise in Product Development for our clients.

Big Rattle Technologies Private Limited is ISO 27001:2022 certified and CyberGRX certified.

What We Offer:

• Opportunity to work on diverse projects for Fortune 500 clients.
• Competitive salary and performance-based growth.
• Dynamic, collaborative, and growth-oriented work environment.
• Direct impact on product quality and client satisfaction.
• 5-day hybrid work week.
• Certification reimbursement.
• Healthcare coverage.

About

Our client is a platform of digital-first health clinics owned and operated under one house, with each of them working together toward one mission: To help Indians lead a more fulfilling life surrounded by wellness and grace.

The business is creating a family of purposeful health platforms with personalized solutions for a particular problem in a niche segment. Each platform provides the essentials to enable an individual segment of people to lead a graceful life full of purpose and wellbeing. 

Requirement

• We are looking for an Android developer responsible for the development and maintenance of existing applications along with continuous integration of new features, who can take the ownership and work independently.
• At least 2 years of experience with MVVM architecture
• 5-8 years of experience with Android development
• Extensive experience of 3rd party integration
• Good knowledge of Java and Kotlin
• Good Logical ability
• Notification and Payment Gateway experience
• Adaptation to new technologies
• Able to design dynamic complex U
• Experience building custom SDK
• Experience with Multi Module Application

Responsibilities

• Integrate the design into high-quality code.
• Ensure the performance, quality, and responsiveness of an application.
• Identify and correct bottlenecks and fix bugs.
• Work alongside other developers working on a different platform for the Application. Therefore, commitment to collaborative problem solving, design implementation, and creating a quality product is essential.

Soft Skills :

• Positive attitude
• Good analytical skills
• Hungry for growth
• Problem-solving

• Proven software development experience and Android skills development
• Proven working experience in Android app development and
• Have published at least one original Android app
• Experience with Android SDK
• Experience working with remote data via REST and JSON
• Experience with third-party libraries and APIs
• Working knowledge of the general mobile landscape, architectures, trends, and emerging technologies

• Design and build advanced applications for the Android platform
• Collaborate with cross-functional teams to define, design, and ship new features
• Work with outside data sources and APIs
• Unit-test code for robustness, including edge cases, usability, and general reliability
• Work on bug fixing and improving application performance
• Continuously discover, evaluate, and implement new technologies to maximize development efficiency

About the Role

A highly motivated and passionate individual who has experience in executing end to end web based products and applications; bringing them to production quickly and with high quality. Passionate about building flexible and scalable solutions with an eye for detail and can weigh pros and cons to find best possible solutions. 

Role and Responsibilities

• Collaborate with Product Managers to plan, implement and deliver tasks and modules on a timely basis with best practices and adherence to SOPs.
• Understand the product requirements, ask questions, and gather information and feedback to design and deliver features both on Android and iOS.
• Create a roadmap of tasks to be delivered for both iOS and Android applications in sync, such that new features go to the end-user at same time. 
• Lead the design of Android and iOS applications in a modular fashion with reusable components.
• Proactively identify issues related to memory consumption, battery drain and multi-threading in the application by planning regular tests and analysis.
• Deliver Android and iOS applications with integration to backend services deployed on the cloud with high quality and responsiveness. 
• Create strong practices around test driven development, automating delivery of apps to the marketplace with strong CI/CD practices.
• Manage a highly skilled and efficient team by hiring, keeping the team motivated, and managing performance.
• Play the role of an unblocker in a tight scrum environment. Should be able to help other developers with challenges, problem solving, and help achieve milestones as per plan.
• Prioritize to manage ad-hoc requests in parallel with ongoing projects.
• Hands on with programming with 50%+ of bandwidth going into modules owned.

Skills/Experience

• A highly talented developer with 10+ years of hands-on experience in building apps that have been released to the Play Store(Android) and Appstore(iOS). 
• Demonstrated experience managing teams of 5-10 or more engineers in mobile application teams.
• Strong knowledge of Android, Kotlin, iOS, Swift, Objective C and working with MVVM, MVP, MVC patterns.
• Experience building mobile applications which lean heavily on connecting to cloud services to gather data and stream videos/content. 
• Working knowledge of Xamarin or Flutter (cross platform frameworks) is highly preferred. 
• Practitioner of test driven development practices. Experience in creating and adhering to best practices for development.

Dear Candidates,
Greetings!!
We are hiring React Native developer

Required Skills:

• Proven development experience on smartphone platforms.
• Hands-on experience on React Native Framework, including React JS, React Native, and JavaScript.
• Extensive programming experience with at least one programming language such as Swift, Java, JavaScript.
• Deep familiarity with iOS or Android development.
• Familiarity with RESTful APIs
• Familiarity with code versioning and CI/CD tools like Git, SVM, Jenkins.
• Must have worked on at least one app that is published in AppStores.

Bonus: 

• Experience in Objective-C, Swift, and Cocoa Touch.
• Good Knowledge of HTML5, CSS.
• Extensive experience with iOS Frameworks such as Core Data and Core Animation.
• Knowledge of Apple’s design principles and application interface guidelines.

We are looking for a Front-End Android Developer who is motivated to combine the art of design with the art of programming. Responsibilities will include translation of the UI/UX design wireframes to actual code that will produce visual elements of the application. You will work with the Backend developer to meet the overall product front end requirement

Industry: IT-Software

Functional Area: IT Software – Android Front End Programming

Role Category: Front End (UI/UX) Developer

Role: Sr./Lead Front End (UI/UX) Engineer Employment

Type: Permanent Job, Full Time

Education: Graduate Engineer or equivalent experience knowledge

Experience: Min 2 Year – 10 Year relevant experience

Job Location: Navi Mumbai/Noida

Skills & Job Responsibilities

• Strong technical background in Mobile platforms Android (Java), Native/Hybrid Application Development.
• Good knowledge of working with custom frameworks, experience with design patterns, pluggable architecture and performance monitoring/tuning
• Knowledge of multiple technology stacks, Command on development methodologies and tools, Strong object-oriented design and development fundamentals
• Demonstrated ability to technically lead a product development team, ability to delegate, influence and get execution done
• Ability to keep track of the bigger picture while helping the team members with their day to day assignments
• Ability to thrive in a fast pace, dynamic excellent articulation and communication skills
• Expertise:
  • Android Framework
  • Services, Content Providers, Intent & Intent Filters, Broadcast receiver.
  • Good command on SQLite database, ‘Push Notification’ and Google Map API’s.
  • Work on GPS Navigation live tracking, Geofencing.
  • Hands on Android API’s like Gmail, Facebook, Linked-in, Twitter, Google+ etc.
  • Worked on all types of parsing techniques like XML and JSON.
  • Worked on all type’s web services like SOAP and REST.
  • Worked on Kotlin
  • Worked on Flutter
• Essential:  Core Java,Multithreading,Data Structure and algorithms, Design Patterns, Troubleshooting and Analytical skills