
- Create and maintain mobile applications.
- Contributing to the development of project schedules and workflows.
- Recommending changes and enhancements to applications.
- Work from UI/UX requirements, APIs and mock-ups to build functional and high-performance applications.
- Keep abreast of the latest technology for mobile applications.
- Work with other developers to brainstorm new applications.
- Create UI tests to source analytics.

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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.
Role: React Native Developer
Experience: 3-5 years
Location: Jaipur
Work Mode: 5 Days working
✨ What We Need:
a. React Native & JavaScript/TypeScript expertise.
b. Experience with OAuth, SSO, REST APIs & Firebase.
c. 3-4 published mobile apps (Android & iOS).
d. App store publishing experience.
e. Strong problem-solving abilities.
We are looking for a highly skilled React Native Developer to
collaborate with a team of developers and UX designers to
develop and maintain a web application that will be launched
on multiple platforms such as android or iOS. The candidate
will be responsible for building native web applications with a
focus on front-end development. The ideal candidate is an
advanced React Native Developer who can build dynamic,
high-performing, and responsive UI for our web applications.
Requirements
1.Minimum 3yrs of exp in building React native apps for android and iOS
2.Solid understanding of iOS and Android ecosystems.
3.Must have worked on hardware integration with the apps.
4.Understanding of various navigation models in mobile apps
5.Good at debugging, testing, performance optimization.
6.Interpersonal skills: good team player, ready to take challenges ability to deliver in a fast-paced environment.
JD
1.Build pixel-perfect, buttery smooth UIs across both mobile platforms.
2.Leverage native APIs for deep integrations with both platforms.
3.Diagnose and fix bugs and performance bottlenecks for performance that feels native.
FLUTTER DEVELOPER
GormalOne LLP. Mumbai IN
GormalOne is on a mission to make dairy farming highly profitable, especially for the smallest farmers living in the most neglected geographies. We are a dairy-focused technology solution provider with a vision to resolve the pain points of everyone in the dairy ecosystem. We are building a comprehensive platform for cattle management where farmers to AITs (Artificial Insemination technicians), para vets, veterinarians, consultants, and corporates can collaborate and benefit each other using data. Nitara offers an easy-to-use artificial intelligence-enabled herd management system for farmers/veterinary/paraprofessionals/AITs.
We are looking for a Flutter developer who has a passion for pushing mobile technologies to the limits. This Flutter app developer will work with our team of talented engineers to design and build the next generation of our mobile applications. Flutter programming works closely with other app development and technical teams.
Responsibilities
- Design and build advanced applications for the Flutter platform targeting Android and iOS platforms
- Deploy the built apps in the play store and app store
- Collaborate with cross-functional teams to define, design, and ship new features
- Work with external 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 modern technologies to maximize development efficiency
- Use SOLID principles and design patterns effectively while coding
- Follow general coding guidelines
- In-depth knowledge of DART is necessary
- Working experience in git
Basic Requirements
- Have published more than one original Flutter app
- Built and deployed the flutter app on both Android and iOS platforms
- Experience with offline storage, threading, and performance tuning.
- Familiarity with the use of sensors such as gyroscopes and accelerometers.
- 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
- Solid understanding of the full mobile development life cycle.
- In-depth understanding of Object Orientation and any of the object-oriented languages like Java or C#
- Understanding agile development method
- Knowledge of HTML, CSS, and JavaScript
Preferred Requirements
- BS/MS degree in Computer Science, Engineering, or a related subject
- Proven software development experience with Flutter skills
- Proven working experience of minimum 2+ Years in Flutter app development
Kindly note: Salary shall be commensurate with qualifications and experience
Must Good to Have Details :
- Must have at least 1 year of experience on React Native along with architecture experience in Mobile Applications.
- Have strong knowledge of App UI design principles, patterns, and best practices
- Familiarity with native build tools, like XCode, Gradle, Android Studio IntelliJ, VsCode
- In-Depth Knowledge of React, React Native, TypeScript or JavaScript Redux, Hooks, ECMAScript (ES6, ES7 etc.), Node, NPM and iOS & Android Build systems
Must have :
- Understanding of REST APIs, the document request model, and offline storage and must have on React Native chart Library
- Working knowledge on Sending Notifications with APNs & FCM
- Experience working with Backend Web Services (like REST etc), Fetch API, and Axios and knowledge of Databases (Relational, Distributed etc.)
- Experience in integrating libraries like React Navigation, React Native, Firebase, Social Logins (Facebook, Google, Apple etc.), Push Notifications etc.
- Responsive layouts in both platforms in reactive native using Media Query & Flexbox
- Sound knowledge of Design Patterns like Creational, Structural, and Behavioral
Good to have :
- Working experience on third-party dependencies and debugging - dependency conflicts
- Must be able to integrate native code in react-native and expo Modules
- Able to generate builds for both IOS(.IPA) and Android (APK) Platforms and experience in hosting apps on respective Stores(AppStore, PlayStore).
- Professional Communication (written, verbal presenting)
- Open to learn and adapt to new technologies
- Go-getter, Result oriented Creative & Innovative approach
- Excellent Communication Skills
- Hands-on experience with React Native (2+ years).
- Experience with popular React workflows (such as Flux or Redux).
- Integrating backend REST APIs
- Passion about complex, interactive applications with a thoughtful UX/UI.
- Should be able to understand project requirements thoroughly.
- A deep understanding of the importance of building maintainable, efficient, clean code, while balancing the urgency of business needs.
- Collaborative attitude and experience working with cross-functional teams.
- Responsible for driving & delivering cross-platform mobile applications.
- Responsible for architecting, solutioning of the project in the requirement phase;
- Responsible for working with the team & enhancing the collaboration, adding value to the project with critical thinking on project design.
- Responsible for integrating the REST APIs
Minimum 5 years of coding experience in Swift in creating Enterprise Mobile Applications of high
performance and global at scale
Hands on experience in performance tuning, debugging, monitoring
Experience designing clean and maintainable APIs
Working experience with popular thid party libraries for networking, async image loading
Experience building complex applications and g Objective-C / C++/SWFIT with Cocoa and other
frameworks
Strong understanding of iOS application architecture and Implementation (MVC, MVVM)
Experience with multithreaded programming, reusable frameworks, UI components, iOS SDK performance
tools and optimization techniques
Knowledge on UIKit, Core Animation, Autolayout, Size Classes, SnapKit
Knowledge on Core Location, MapKit, AVFoundation, StoreKit, Extensions, AddressBook, EventKit, CAllKit,
SiriKit, Core Bluetooth
Knowledge on Spatial Reasoning
Experience in following best Coding, Security, Unit testing and Documentation standards and practices
Experience in Agile methodology.
Ensure quality of technical and application architecture and design of systems across the organization.
Effectively research and benchmark technology against other best in class technologies.
Previous experience of developing VoIP based solution, live streaming/video calling based application
DevOps understanding is a plus.
Previous experience of working in Product/Solution development or Start-ups will be added advantage
Domain Knowledge: Health care
Good Communication skill
Responsibilities
To develop reusable, high performance and bug-free code.
Develop and mentor other team members for delivering high quality code and best practices.
Ensure timely and top-quality product delivery
Ensure that the end product is fully and correctly defined and documented.
Ensure implementation/continuous improvement of formal processes to support product development
activities.
Founded by IIT Kharagpur and Kanpur alumni, Pocket FM has grown to 2M+ users with deep engagement of 90 minutes time spent per user per day. We are a Series A funded start-up backed by some of the marquee investors like Tencent, Lightspeed, and others.
Who you are
2-5 Years of experience in product development with expertise in designing and implementing high-performance applications for mobile (Android, iOS).
Proficiency in Problem Solving and Data structures.
Expert understanding of iOS and Android native platforms and corresponding frameworks is a must.
Proficient in Design patterns and principles.
Amazing debugging skills with the ability to write unit test cases.
Good communication and interpersonal skills & focus on quality & velocity
A. Strong passion for Programming in general and Android App development in specific.
B. Strong problem-solving skills.
C. Strong system design and architecture skills - specifically for android.
D. Curiosity to tinker around, explore new paradigms and strong zest for continuous improvement.
E. Over 4+ years of Android App development experience with strong basics and complete exposure to Android development.
F. Idea/experience of unit and instrumentation testing in Android.
G. E2E App development and/or experience of developing SDKs is good to have.









