11+ RxSwift Jobs in Mumbai | RxSwift Job openings in Mumbai

Role & Responsibilities

What You'll Rock Daily:

• Build & Polish iOS Magic: Dive deep into SwiftUI for sleek, modern UIs and UIKit for rock-solid legacy love. Make our app swipe-right smooth!
•  Cross-Platform Adventures: Tinker with Flutter basics to bridge iOS & Android – because love knows no platform boundaries. 
• Ship Features Fast: From profile boosts to match notifications, own end-to-end development, testing, and launches that wow 50M+ users.
• Debug Like a Detective: Squash bugs, optimize performance, and ensure our app runs buttery on every iPhone in Bharat.
• Team Up: Collaborate with product peeps, designers, and fellow devs in high-energy sprints. Bonus: Brainstorm "shaadi specials" over chai!

Ideal Candidate

• Strong iOS Developer profile (B2C background)
• Mandatory (Experience): Must have 3+ years of hands-on experience in iOS development with atleast 1+ years in a B2C product company
• Mandatory (Skill 1): Must be proficient in both SwiftUI (modern UIs) and UIKit (legacy surfaces), and must have personally shipped 1+ iOS apps live to the App Store (verifiable links expected)
• Mandatory (Skill 2): Must have a solid grasp of iOS App architecture (MVVM or similar), REST API integration, Git, and CI/CD pipelines for mobile builds and releases
• Mandatory (Skill 3): Must have basic, hands-on Flutter exposure
• Mandatory (Company): B2C product companies. Recent B2C experience with prior exposure to B2B also acceptable
• Mandatory (Note): This role is for the Astrochat product of shaadi.com
• Preferred (Education): B.Tech / M.Tech from a top-tier college
• Preferred (Bonus iOS Stack): Hands-on with RxSwift, Core Data, or push notifications

What We Expect:

• Min 3 years of mobile development experience, with Flutter & Dart.
• Proven ability to build and scale real-time, high-performance fintech applications.
• A sharp eye for stunning UI/UX design that balances aesthetics with seamless functionality.
• Mastery over state management solutions (Provider, Riverpod, BLoC, or similar).
• Hands-on experience with real-time data streaming, push notifications, and WebSockets.
• Strong expertise in security, encryption, and compliance—you know fintech demands precision.
• A track record of integrating RESTful APIs, GraphQL, and third-party services into flawless mobile apps.
• A mindset that thrives under pressure—we work fast, and we expect results.
• Lead the development of world-class fintech mobile applications that redefine user expectations.
• Architect and optimize blazing-fast, low-latency Flutter applications for financial markets.
• Work with designers, backend engineers, and product teams to craft seamless, intuitive, and ultra secure user experiences.
• Solve hard problems at scale—whether it’s optimizing performance, reducing load times, or ensuring absolute security.
• Push the boundaries of mobile fintech innovation, from AI-powered insights to predictive analytics.
• Own your work end-to-end—no excuses, no hand-holding, just results.

Must-Have Skills:

• Min 3 years of mobile development experience, with 2+ years in Flutter & Dart.
• Proven ability to build and scale real-time, high-performance fintech applications.
• A sharp eye for stunning UI/UX design that balances aesthetics with seamless functionality.
• Mastery over state management solutions (Provider, Riverpod, BLoC, or similar).
• Hands-on experience with real-time data streaming, push notifications, and WebSockets.

Why Join Us?

• Work with some of the sharpest minds in fintech and mobile engineering.
• Build products that traders, investors, and financial professionals rely on daily.
• A culture that values bold innovation, fast execution, and pushing boundaries.
• Expect challenges, high expectations, and relentless pursuit of excellence.
• Take complete ownership—from ideation to deployment, every pixel and every line of code should scream excellence.
• Competitive compensation, performance-driven growth, and a real opportunity to lead and shape the future of fintech mobile applications.

We are looking for an entry level developer to join our team. You must have delivered at least 2 projects either as a part of self training, internships or industry experience.

Required Skills (more the better):

• Native iOS Application Development with Swift, understanding of Objective C, iOS SDK, Xcode, Cocoa Layer, Media Layer, Core Service Layer, Core OS Layer, iOS Frameworks, iOS Developer Tools, iOS programming, iOS Human Interface
• Hybrid mobile application development using Flutter will be an added advantage
• Deployment/ publish in Apple App Store
• Understanding of design patterns like MVC

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, 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

Why should I join Big Rattle?

Big Rattle Technologies specializes into development of Mobile and Web applications. Our clients include Fortune 5000 companies. Over the past 9 years, we have delivered multiple projects for clients from various industries like FMCG, Restaurants, Banking and Finance, Automobiles, Ecommerce, Television and Broadcast Agencies.

You will have an opportunity to get end-to-end exposure in software design and development of products, web applications and mobile applications. You will also have opportunities to participate in the decision-making process and take leadership roles as you grow in the organisation.

The company offers benefits like

• Healthcare coverage (including Covid-19 vaccination reimbursement)
• Technical certification fee reimbursements
• Technical training fee reimbursements
• 5-day work week
• Flexible working hours
• Hybrid working

Responsibilities

1. Cross-Platform Mobile Development

• Build, maintain, and scale production-grade React Native applications for both Android and iOS platforms from a single codebase.
• Translate product requirements and UX designs into clean, modular, and reusable React Native components.
• Develop rich, intuitive user interfaces for AI/ML dashboards, real-time analytics, and consumer-facing applications.
• Own features end-to-end — from technical design through to deployment on Play Store and App Store.

2. Native Integration & Bridging

• Write custom native modules and bridges in Kotlin/Java (Android) or Swift/Objective-C (iOS) to extend React Native's capabilities where required.
• Integrate third-party SDKs, device hardware APIs, and platform-specific features seamlessly into the React Native layer.
• Ensure consistent functionality and behaviour across a wide range of Android and iOS devices and OS versions.

3. Real-Time & Data-Driven UI

• Build real-time UI components that handle live data streams, WebSocket connections, and high-frequency data updates with minimal latency.
• Develop data-intensive views including charts, dashboards, and monitoring interfaces optimised for mobile performance.
• Ensure smooth, responsive user experiences under high-traffic and data-heavy conditions.

4. Performance & Optimization

• Profile, debug, and optimize application performance using tools such as Flipper, Hermes, React DevTools, and platform-native profilers.
• Minimize app bundle size, reduce render cycles, and improve startup time through best-in-class optimization techniques.
• Ensure accessibility compliance and cross-device UI consistency across varying screen sizes and resolutions.

5. Architecture & Code Quality

• Design and implement scalable mobile architectures supporting modularity, testability, and long-term maintainability.
• Implement robust state management using Redux, Zustand, MobX, or React Context depending on application complexity.
• Establish and uphold mobile coding standards, component libraries, and reusable design systems across the team.

6. Collaboration & Delivery

• Partner closely with backend, AI/ML, data engineering, and design teams to integrate APIs, data pipelines, and workflows.
• Actively participate in code reviews, sprint ceremonies, and technical design discussions.
• Support CI/CD pipelines using Fastlane, Bitrise, or equivalent tools for automated builds and releases.
• Contribute to OTA update strategies using CodePush or equivalent.

Required Skills & Qualifications

• Strong hands-on experience building and shipping production React Native applications on both Android and iOS.
• Proficiency in JavaScript and TypeScript — TypeScript strongly preferred.
• Experience with state management libraries — Redux, Zustand, MobX, or Context API.
• Solid understanding of React Native architecture — Bridge, JSI, Hermes engine, and the New Architecture (Fabric/TurboModules) is a plus.
• Experience writing native modules or bridges in either Kotlin/Java or Swift/Objective-C.
• Hands-on experience with REST APIs, GraphQL, and WebSockets in a mobile context.
• Strong understanding of mobile UI/UX principles, responsive design, and platform-specific design guidelines (Material Design & HIG).
• Experience with CI/CD pipelines and app store deployment processes.

Preferred Skills

• Experience building data-intensive or dashboard-heavy mobile applications.
• Familiarity with data visualization libraries such as Victory Native, Recharts, or D3.js for mobile.
• Exposure to AR/VR or graphics-intensive mobile experiences (ARKit, ARCore, React Native Vision Camera).
• Experience with OTA updates via CodePush or similar tools.
• Familiarity with monorepo setups (Nx, Turborepo) for managing shared mobile codebases.
• Understanding of accessibility standards (WCAG) and inclusive design on mobile.
• Exposure to AI/ML integration on mobile — on-device inference, TensorFlow Lite, or CoreML.

Some of the key responsibilities of this candidate are:

• Understand the EdTech context
• Innovate, evaluate, and deploy various android and IOs Features 
• Ability to take ownership over your work.
• An understanding of React Native best practices and a commitment to following them.

• Experience with React Js, React Native, JavaScript including DOM Manipulation and JavaScript object model.
• Thorough understanding of React Native and its core Principles.
• Good Knowledge of HTML5, CSS.
• Familiarity with code versioning tools (Such as Git, SVN or Mercurial)
• Familiarity with RESTful APIs
• Good knowledge of database (MySQL, SQLlite, RealM etc ..)
• Familiarity with modern front-end build pipelines and tools.
• Experience with common front-end development tools such as Babel, Web pack, NPM etc.
• Experience with Native Mobile app deployment on App store and google play store.

Job Responsibilities:

- Design and develop high-volume, low-latency applications for mission-critical systems, delivering high-availability and performance.

- Contribute in all phases of the development lifecycle: concept, design, build, deploy, test, release to app stores and support.

- Diagnose performance issues, fix bugs (including crashes and ANRs) to increase the functionality of the application.

- Write well designed, testable, efficient code.

- Ensure designs are in compliance with specifications

- Prepare and produce releases of software components

- Support continuous improvement by investigating alternatives and technologies and presenting these for architectural review

Desired Profile :

B.Sc. (CS or IT) + MCA/ BCA + MCA/ B.Tech. /B.E. (CS or IT) .

Experience required- 1 - 2 years

- Subject Proficient in Java/Kotlin programming

- Knowledge and experience in Flutter Framework and DART programming

- Hands on experience in using RESTful APIs

- Hands on experience in designing and developing micro-services architecture and containers

- Object oriented analysis, UML and design using common design patterns.

- Hands on experience in development IDE Android Studio, Android SDK, Firebase Test Lab

- Experience with offline storage, threading, and performance tuning

- Familiarity with push notifications

- Familiarity with IOS integration with Flutter

- Experience using GitHub or similar environment

- Complete understanding of SDLC

- Experience with Agile development

- Experience with Material Design and Android UI design principles, patterns and best practices

- Good knowledge of adding third-party libraries for Eg. Twilio

- Ability to understand business requirements and translate them into technical requirements

Job Description

An iOS developer is responsible for developing applications for mobile devices powered by Apple’s

iOS operating system. They must also have a strong understanding of the patterns and practices

that revolve around the iOS platform.

Responsibilities

1. Design and build advanced applications for the iOS platform

2. Collaborate with cross-functional teams to define, design, and ship new features.

3. Unit-test code for robustness, including edge cases, usability, and general reliability.

4. Work on bug fixing and improving application performance.

5. Continuously discover, evaluate, and implement new technologies to maximize development efficiency.

Skills & Qualifications

1. Experience working with iOS frameworks such as Cocoa Touch, Firebase, Alamofire

2. Degree in Computer Science, Engineering or a related subject

3. Proven working experience in software development

4. Working experience in iOS development

5. Have published one or more iOS apps in the app store

6. Must have knowledge of Swift & Objective C

7. Experience with third-party libraries and APIs

8. Working knowledge of the general mobile landscape, architectures, trends, and emerging technologies

9. Solid understanding of the full mobile development life cycle.

Experience Requirement

We are looking for the candidates with 3+ years of experience

About theAsianparent:

theAsianparent is a reproductive health-tech company that reaches out to 30 million mothers every month through our parenting website and app. Our vision is to improve the overall health of pregnant women, mothers and families in South East Asia by helping them navigate their most important moments with data-driven solutions and information in the form of content, community and physical products.

Headquartered in Singapore, theAsianparent has offices in Vietnam, Indonesia, Malaysia, the Philippines, Thailand, India, Sri Lanka, Hong Kong and Nigeria. Our investors include Fosun, JD.com,Vertex Ventures and others.

Link: https://tickledmedia.com// https://sg.theasianparent.com/

We are looking for a Backend Engineers with 4+ years of experience to join our team. This is unique opportunity for a driven and insightful quality analyst to join the leading growth-stage start up in the most meaningful segment of the economy(parents) in the core market of Singapore. This is arole where careers are made, if you are upto the challenge, and keen to work with world-class teams

JD for Flutter developer

About the Role :

Creating cost-effective and efficient applications with perfectly crafted, creative and leading-edge flutter app development solutions for customers. You will be working with a fantastic development team, who will be your peers and friends working towards our technological vision and strategy

Must have

1. Have two or more iOS/Android apps developed with Flutter.
2. Either deployed on the AppStore/Google Play or available on Github
3. Experience with third-party libraries and APIs
4. Experience with Git, Jenkins, or other version control tools
5. Ability to write readable code, create extensive documentation for existing code,  and refactor the previously written code into readable state

What are we looking for:

1. Good knowledge about Dart
2. Well versed with translating wireframes/designs into UI using Widgets,
3. Material Components(For android) and Cupertino components(for iOS).
4. Managing layouts, gestures, animations and lifecycle states of widgets.
5. Advanced UI concepts like Silvers.
6. App state management and various approaches for the same like Provider,  Redux,BloC/Rx,MobX
7. Handling networking with HTTP in client-server architecture.
8. Experience with integrating and using analytics tools like Firebase.
9. Handling Native Android and IOS views in Flutter app.
10. Adding Flutter to existing Android and iOS apps.
11. Debugging, performance measurement/tracking of flutter app

 What can you expect :

1. A fast-paced environment to learn and grow in your career with a market leader with
2. Ambitious growth plans.
3. Opportunities to learn about and work in different areas of content creation and management and become a well-rounded digital media content professional.
4. Dynamic and supportive work culture.
5. A passionate team of people working tirelessly to help women across South East Asia and beyond.

Please send your CV together with the following information:

1. Notice Period
2. Last Drawn Salary
3. Expected Salary
4. Nationality/ Visa Requirement