iOS Application Developer

React Native Developer (Full-Time)

📍Work from Office – Malad, Mumbai

We are hiring a React Native Developer for Websites.co.in, a platform used by millions of businesses to create their websites in minutes. You will build and improve our mobile experience used by small business owners globally.

Your role:

• Build and maintain mobile apps using React Native
• Implement clean, reusable components and UI screens
• Integrate REST APIs and handle JSON data efficiently
• Work on app performance, loading speed, and smooth UX
• Debug issues, fix crashes, and improve app stability
• Collaborate with product, backend, and QA teams to ship features
• Participate in testing, code reviews, and release cycles

What we expect:

• Strong understanding of JavaScript and React Native basics
• Familiarity with navigation, state management, and component lifecycle
• Hands-on experience with APIs, third-party libraries, and async storage
• Knowledge of Git for version control
• Problem-solving mindset and ability to work independently
• Bonus: experience with Redux / Context API, Android or iOS builds, or publishing apps
• 0–3 years of experience (freshers with good projects can apply)

What you get:

• Real ownership on a live, large-scale SaaS product
• Fast-paced growth environment with hands-on learning
• Opportunity to grow into a core mobile or full-stack role

We are looking for a passionate and skilled iOS Developer (SDE II) to join our mobile engineering team. You will play a critical role in building and scaling high-performance iOS applications used by millions of users. The ideal candidate is deeply familiar with the iOS ecosystem, understands architectural best practices, and is capable of writing clean, maintainable, and testable code.

Key Responsibilities:

• Design, build, and maintain advanced iOS applications using Swift and Objective-C.
• Translate product requirements into scalable technical solutions.
• Collaborate with cross-functional teams including product, design, and backend teams to define, design, and ship new features.
• Ensure the performance, quality, and responsiveness of applications.
• Identify and fix bugs, bottlenecks, and performance issues.
• Maintain code quality through unit tests, code reviews, and CI/CD best practices.
• Stay up to date with the latest iOS development trends, tools, and technologies.

Required Skills & Qualifications:

• 3–6 years of hands-on experience in iOS development.
• Strong command over Swift, Objective-C, Xcode, and the iOS SDK.
• Experience with MVVM/MVC architecture, RESTful APIs, and third-party libraries (e.g., Alamofire, Realm).
• Understanding of Apple’s design principles and interface guidelines.
• Familiarity with unit testing and performance tuning.
• Strong debugging and problem-solving skills.
• Bachelor's degree in Computer Science or a related field.

Nice to Have:

• Experience with SwiftUI, Combine, or CoreML.
• Exposure to Agile methodologies and Git workflows.

Why Join Us:

Be part of a fast-moving tech team building impactful, user-friendly apps with modern development practices and a collaborative work culture.

Capillary is an Equal Opportunity Employer and will not discriminate against any applicant for employment on the basis of race, age, religion, sex, veterans, individuals with disabilities, sexual orientation, or gender identity.

Disclaimer:

It has been brought to our attention that there have recently been instances of fraudulent job offers, purporting to be from Capillary Technologies. The individuals or organizations sending these false employment offers may pose as a Capillary Technologies recruiter or representative and request personal information, purchasing of equipment or funds to further the recruitment process or offer paid training. Be advised that Capillary Technologies does not extend unsolicited employment offers. Furthermore, Capillary Technologies does not charge prospective employees with fees or make requests for funding as a part of the recruitment process.

We commit to an inclusive recruitment process and equality of opportunity for all our job applicants.

Responsibilities

·        Design and build advanced applications for the iOS platform.

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

·        Work on bug fixing and improving application performance.

·        Identify and correct bottlenecks and fix bugs

·        Help maintain code quality, organization, and automatization

·        Support the whole application lifetime from idea through design, testing, release, and maintenance

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

Skills

·        Proficient with Swift and Cocoa Touch

·        Experience with iOS frameworks such as Core Data, Core Animation, etc.

·        Experience with offline storage, threading, and performance tuning

·        Familiarity with RESTful APIs to connect iOS applications to back-end services

·        Understanding of Apple’s design principles and interface guidelines

·        Experience with performance and memory tuning with tools 

·        Familiarity with cloud message APIs and push notifications

·        Knack for benchmarking and optimization

·        Proficient understanding of code versioning tools source tree, git

·        Familiarity with continuous integration

·        Solid grasp of algorithms, memory management, object oriented programming, and MVC Design

Competencies

·        Excellent communication skills

·        Ability to co-ordinate with cross functional teams  

·        Should be a good Team player.

• Swift
• MVVM
• API integration using JSON
• GIT, JIRA
• Ability to understand requirements
• Ready to mentor juniors

We are seeking a skilled React Native Developer to join our development team in Noida. As a React Native Developer, you will be responsible for designing, developing, and maintaining high-quality mobile applications using the React Native framework. You will work closely with cross-functional teams to deliver outstanding mobile solutions.

Responsibilities:

• Develop and maintain mobile applications using React Native for iOS and Android platforms.
• Collaborate with designers and backend developers to implement intuitive user interfaces and ensure seamless user experiences.
• Write clean, efficient, and maintainable code, following coding standards and best practices.
• Integrate third-party libraries and APIs to enhance application functionality.
• Conduct thorough testing and debugging to identify and resolve any issues or bugs.
• Stay updated with the latest industry trends, technologies, and best practices in mobile application development.
• Collaborate with backend developers to ensure smooth integration of server-side logic.
• Participate in code reviews and provide constructive feedback to team members.

Requirements:

• 2-5 years of professional experience in mobile application development.
• Strong proficiency in React Native framework and JavaScript.
• Good understanding of mobile app development concepts, including UI/UX design principles and mobile-specific considerations.
• Experience with RESTful APIs and asynchronous programming.
• Familiarity with version control systems, such as Git.
• Knowledge of mobile app performance optimization techniques.
• Strong problem-solving and debugging skills.
• Excellent communication and collaboration abilities.
• Ability to work effectively in a fast-paced and dynamic environment.
• Bachelor's or Master's degree in Computer Science or a related field.

Preferred Skills:

• Have practical experience on deploying an app on "Play store"

Own Android SDKs, working hand-in-hand with the founding team

Design and build delightful user interfaces for native apps on Android

You will be (co-) responsible for our software development kit (SDK) for Android

Building mobile apps in both Swift and Kotlin.

You work independently on your own code, but you also spend time collaborating with others.

You are involved in all stages of app development and contribute to the roadmap.

You get the freedom to experiment with new Android technology.

Ownership — advocate for projects and solutions that need to be launched ground up.

Experience

Min 2 to 4 years in developing Android applications in Java / Kotlin / C++ /Gradle/Groovy.

Worked on SDKs/Frameworks.

Strong understanding of software design patterns as well as Android specifics.

Experience with authenticated sessions using authentication tokens and have at-least

fundamental knowledge of app security.

Good to have:-

Experience with Cross-platform frameworks is a plus (React Native, Flutter, Cordova,

Xamarin).

Have implemented security standards and guides.

Experience building applications at scale.

Experience with third-party libraries and APIs like Mobile Vision, MLKit and/or

Camera API.

Good understanding of garbage collection, design patterns and continuously

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

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

reliability

• Leverage native APIs for deep integrations
• Solving any challenges that might appear on the way
• Diagnose and fix bugs and performance bottlenecks for performance that feels native
• Maintain code and write automated tests of quality that sets the benchmark for your future colleagues

• 2+ years of relevant industry experience in React Native
• A deep understanding of JavaScript
• Familiarity with video recording, playback, and uploading libraries
• Experience with Native Android app deployment
• Familiarity with modern front-end build pipelines and tools
• Familiarity with Socket.io is a plus
• Familiarity with RESTful APIs
• Strong UX/UI design exposure and experience in making apps work intuitively and with pixel perfect interface
• Highly accountable and takes ownership, with a collaborative attitude, and a lifelong learner
• Familiarity with code versioning tools (such as Git)