iOS Developer at Big Rattle Technologies · Mumbai · 1 - 3 years · ₹3L - ₹9L / yr · Profitable · Posted 19 May 2026

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 Big Rattle Technologies
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Experience : 3+ Years
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Key Responsibilities :
- Design and build advanced applications for the iOS platform.
- Collaborate with cross-functional teams to define, design, and ship new features.
- Ensure the performance, quality, and responsiveness of applications.
- Identify and correct bottlenecks and fix bugs.
- Maintain code quality, organization, and automation.
Requirements :
- Proven experience in iOS development.
- Proficient in Swift programming language.
- Strong knowledge of iOS frameworks such as Core Data, Core Animation, etc.
- Experience with RESTful APIs to connect iOS applications to back-end services.
- Familiarity with cloud message APIs and push notifications.
- Understanding of Apple’s design principles and interface guidelines.
• Design, build, and maintain efficient, reusable, and reliable Flutter code to develop feature-rich, high-performance mobile applications for Android and iOS platforms.
Collaborate with designers to implement visually stunning and responsive user interfaces, ensuring an excellent user experience across various devices and screen sizes.
• Integrate mobile applications with backend APIs and services to facilitate seamless data exchange and ensure smooth app functionality.
• Identify and resolve bugs, performance issues, and other problems that may arise during the development process or in the live applications.
• Continuously optimize application performance and enhance the user experience by employing efficient algorithms and techniques.
• Stay up-to-date with the latest trends, tools, and technologies related to mobile development, particularly within the Flutter ecosystem, and apply them to improve development processes and outcomes.
Requirements
• Minimum 4 years of professional experience in mobile app development, with a focus on Flutter.
• Proven expertise in developing robust and complex mobile applications using the Flutter framework.
• Solid understanding of mobile app development concepts, including UI/UX design, offline storage, threading, and performance optimization.
• Strong proficiency in Dart programming language, along with a good understanding of object-oriented programming (OOP) principles.
• Familiarity with RESTful APIs and experience in integrating mobile applications with backend services.
• Strong communication skills to collaborate effectively with team members and clients.
About the Role
We are looking to hire a talented iOS developer to design, build, and maintain the next generation of iOS applications. Your primary focus will be developing high-end iOS applications for the latest Apple mobile devices. Your duties may include collaborating with the product team and Tech team for new application features, identifying and fixing application bottlenecks, maintaining the core code, and updating applications published on the App Store.
To ensure success as an iOS developer, you should have a strong working knowledge of iOS Frameworks, be proficient in Swift, and be able to work as part of a team. Ultimately, an outstanding iOS developer should be able to create functional, attractive applications that perfectly meet the needs of the user.
Job Responsibilities
- Proficient in Swift, and Objective-C
- Design and implement new features, improvements, ensuring high performance, responsiveness, and a seamless user experience
- Providing implementation detail of feature and documentation
- Experience with iOS frameworks such as UIKit, SwiftUI
- Familiarity with RESTful APIs and networking libraries
- Knowledge of version control systems (e.g., Git)
- Identifying potential problems and resolving application bottlenecks.
- Maintain and enhance the existing codebase while adhering to best practices and coding standards.
- Understanding of Apple’s design principles and interface guidelines
- Developing and implementing architecture to support user interface concepts.
- familiarity with App Approval and Submission procedure
- Knowledge of Push notifications
- Implement secure coding practices to ensure data protection and user privacy
Experience & Skills Requirements
- Bachelor’s degree in computer science or software engineering.
- Minimum 3 years of experience in iOS development.
- Proficient in Objective-C, SwiftUI, 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.
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Description:
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Requirements:
What are we looking for?
- We expect you to have your domain knowledge of Flutter, Dart, Room or Realm DB, BLOC pattern based development, Redux and RX Dart
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- You have the ability to explain your algorithms and solutions and understand how to ask questions with respect to mobile app development and web development scenarios
- You are a smart and energetic talent from engineering and computer science background
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- In terms of day to day work, for 2 years you should have done the following:
- At least 2 to 3 live projects in Flutter or Native Android or iOS
- Thorough understanding of Dart programming for mobile application development
- Writing frontend code with SOLID principle
- Unit testing of your code with Travis CLI
- Collaborative development with BitBucket or GIT and handling of code merge conflicts
- Documenting frontend code
- Knowledge of Android native and iOS native is a plus
- Proficient in Linux, and understanding of Ubuntu OS
- Knowledge on Firebase or Firestore is a plus
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- Working days - 6 days a week
Welcome to BiCSoM careers:
BiCSoM Technologies Private Limited is committed to breakthrough innovation and success for its team members. From our mindful culture of compassion and wisdom to passionate customer success philosophy, this is one awesome place to work! So come and experience what it takes to build digital products which are loved by millions of users across the globe. You will find speed, agility, fun and supportive culture where we are responsible for each other’s success.
- BiCSoM is a registered startup under the Startup India initiative of Government of India and a DIPP registered MSME
- BiCSoM was recognized as one of the top AR/VR startups in India in 2018 in DCB Bank innovation carnival
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- Working directly with developers and product managers to conceptualize, build, test, and realize products/features.
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QUALIFICATION:
- Good understanding of Swift, Cocoa framework, Core Data, AutoLayout, UIKit, Xcode & iOS applications.
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- Extensive mobile development experience with iOS Proficiency in Swift.
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To ensure success as an iOS Developer, you should have a strong working knowledge of iOS Frameworks, be proficient in Objective-C, and be able to work as part of a team. Ultimately, an outstanding iOS Developer should be able to create functional, attractive applications that perfectly meet the needs of the user.
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Designing and building mobile applications for Apple’s iOS platform.
Collaborating with the design team to define app features.
Ensuring quality and performance of application to specifications.
Identifying potential problems and resolving application bottlenecks.
Fixing application bugs before final release.
Publishing application on App Store.
Maintaining the code and atomization of the application.
Designing and implementing application updates.
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Bachelor’s degree in Computer Science or Software Engineering.
Proven experience as an app developer.
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Extensive experience with iOS Frameworks such as Core Data and Core Animation.
Knowledge of iOS back-end services.
Knowledge of Apple’s design principals 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.
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We are an equal opportunity employer and welcome people of different backgrounds, experiences, abilities and perspectives.Please review our Candidate Privacy Notice here.










