iPhone developer

The Role:

We are looking for a Software Development Engineer (iOS) to join our Core Payments team at Razorpay. In this role, you will be responsible for developing and scaling our iOS SDK, the critical integration point used by thousands of merchants to process payments across multiple geographies.

You will work closely with product and backend engineering teams to design high-performance features, ensuring the SDK remains secure, lightweight, and developer-friendly. This role offers the opportunity to solve complex engineering challenges involved in building financial infrastructure that operates at massive scale.

Responsibilities:

• SDK Development: Contribute to the development of our native iOS SDK, ensuring high availability and seamless payment experiences for a diverse merchant base.
• Engineering Excellence: Write clean, maintainable, and modular code. Architect solutions that are resilient across different host app environments.
• Automation: Design and implement robust automation for tests, builds, and performance profiling. If a task is repetitive, you are expected to automate it.
• Instrumentation: Build deep telemetry within the SDK to provide real-time insights into success rates and latency, enabling data-driven product decisions.
• Security: Implement industry-standard security protocols, including SSL pinning and runtime integrity checks, to protect sensitive transaction data.

Mandatory Qualifications:

• 2+ years of experience in native iOS development using Swift.
• Systems Design: Solid understanding of OOPS principles and architectural patterns (e.g., MVVM, VIPER, or Clean Architecture).
• Cross-Platform Knowledge: Practical experience with bridge-based frameworks such as Flutter, React Native, or Cordova.
• Technical Depth: Strong proficiency in GCD, Swift Concurrency, and UIKit/SwiftUI lifecycles.
• Debugging: Proficiency in using Xcode Instruments for memory management, CPU profiling, and network debugging.

Good to Have:

• Android Stack Experience: Familiarity with Kotlin or Java is highly preferred to help maintain feature parity and align API design across platforms.
• Deployment & Tooling: Knowledge of CocoaPods, Swift Package Manager (SPM), or Fastlane for automated distribution.
• Open Source: Active contributions to GitHub or a portfolio of apps published on the App Store.

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.

.Net developer role will involve working in all phases of the software development cycle. Build new systems with Microsoft technologies with primary focus in C#, .NET, .Net Core,Web API, SQL, Entity Framework, Async Programing, Git, and Design patterns. Be an effective team player in a small, experienced and energetic team working on a rapid and agile development schedule.

Required Skills  3-5 years of experience as a developer

 3+ years in Microsoft Web-related Technologies

 Deep knowledge of the .NET Framework, .NET Core,

.Net, MVC, C#, ENTITY Framework, REST web services

– Authentication, Authorization, Performance Tuning,

JSON, Unit testing – Nunit, Xunit

 Experience in Data Modelling, Object Oriented Designs

 Experience in integrating with other systems like Payment

gateway or third-party API or integration tools like Boomi

 Hands-on experience in SQL Server stored procedure

development and fine-tuning.

 Experience in using GitHub, project management, defect

tracking tools.

 Provide accurate status to Management/Project Managers

and escalating where appropriate

 Mentor and guide new developers and team

 Self-directed with excellent problem-solving skills

 Strong written and Oral communication skills and must be

a fast learner adapting to new technologies and frameworks.

 Review test plans with QA & drive the code reviews

within the team

 BE in CS, MCA or BSc in Math or equivalent

Desirable Skills

 Exposure to Azure services, AWS services, cloud deployment

Designation: Technical Lead - Android (ABL_SS_597)

Position description:

• Responsible for the development and maintenance of applications aimed at a vast number of diverse Android devices. 
• Along with Hands-on development will lead the development of Android applications and their integration with back-end services. 
• Work alongside other engineers and developers working on different layers of the infrastructure.
• Translate designs and wireframes into high-quality code
• Design, build and maintain high performance, reusable, and reliable Kotlin and Swift code
• Would be working on IOS platforms hands on along with Android.
• Ensure the best possible performance, quality, and responsiveness of the application
• Identify and correct bottlenecks and fix bugs
• Help maintain code quality, organization, and automatization.

Primary Responsibilities:

• Would be building features and services in android and ios.

Required Skills:

• 7 – 11 years of work experience of Kotlin, RxKotlin and Java
• Knowledge of different designing patterns, Preferably MVVM.
• Experience in Socket Programming and Android Jetpack Components.
• Strong knowledge of Android SDK, different versions of Android, and how to deal with different screen sizes &
• Understanding of Android Porting and Build process, Android native and System app.
• Familiarity with RESTful APIs to connect Android applications to back-end services GRPC, Retrofit.
• Strong knowledge of Android UI design principles, patterns, and best practices
• Experience with offline storage, threading, and performance tuning
• Knowledge of the open-source Android ecosystem and the libraries available for common tasks
• Familiarity with cloud message APIs and push notifications, Deep Linking
• A knack for benchmarking and optimization
• Nice to have an understanding of Swift, Objective-C and Cocoa Touch
• Nice to have an understanding with iOS frameworks such as Core Data, Core Animation, etc.
• Experience with offline storage, threading, and performance tuning
• Familiarity with Flutter or React Native 

Job Description-

We are looking for an iOS developer who possesses a passion for pushing mobile

technologies to the limits and will work with our team of talented engineers to design and

build the next generation of our mobile applications.

Responsibilities

• Developing and maintaining iPhone and iPad application
• Estimate the work efforts at varied levels and entail in design evaluation,

determining the architectures, lay-out and style controls

• Connect client application with various back-end technologies
• Work in coordination with developers in designing architecture and implement

designing strategy

• Collaborate with people in other disciplines for the production and delivery of

project deliverable

Experience and Skills required

• Must have 1-3 year of experience in developing apps for iOS
• Working experience in Swift
• Working experience Objective C
• Understanding of web development concepts such as REST and SOAP web

services, and how to access them from iOS Objective C Code is a prerequisite

• Possess experience in developing social and location aware applications
• Experience of developing apps for varied platforms like Blackberry,

Android,Symbian is an added advantage

• Hands on experience on use of the latest iPhone SDK 5

Key Skills:

Objective C, Swift, React Native