App Developer

CometChat Overview

CometChat is a full-stack conversational platform built to unify every layer of interaction - bringing together real-time conversations (chat, messaging, voice, and video), AI Agents, moderation, notifications, and analytics in one modular, developer-first solution.

We were also recognized on Forbes' 2026 America's Top 500 Startup Employers List - a reflection of the team and culture we've been deliberate about building.

We believe the interface of the future is conversation - not clicks. Every app will soon have an AI layer that's as native as text messaging today. That's why we're building the infrastructure for the world's AI-powered conversations - from human-to-human, to human-to-agent, to multi-party collaboration with AI in the mix.

From AI onboarding assistants that get users productive in minutes, to copilots that perform complex workflows in-app, to intelligent moderators that protect and guide communities in real time - our AI Agent platform makes it all possible.

With CometChat's ready-to-use UI kits, powerful SDKs, and our Full Stack AI Agent Platform, product teams across startups and enterprises can launch safe, scalable, and smart in-app interactions faster than ever.

Why Join Us Now

We're at the tipping point where AI becomes a native part of every conversation. At CometChat, you'll help shape a future where users can talk to their apps as naturally as to a friend - where agents think, reason, act, and collaborate with humans in real time.

You won't just be joining a product team - you'll be building the standard for AI interaction layers: agent-aware UI, intelligent guardrails, rich actions libraries, and multi-party collaboration between people and AI.

If you want to help define how the next billion users will communicate - and push the boundaries of what's possible in real-time, AI-powered engagement - we'd love to work with you.

What we mean by AI-native

AI-native here means you build with agents by default. We expect 100% of the code to be generated via agentic tools (Cursor, Claude Code, and similar), while you own everything that actually matters: problem framing, architecture, tradeoffs, review quality, tests, performance, and security. This is not "vibe coding." The code is generated. The thinking is yours. You should be great at steering agents, validating output, catching subtle issues early, and debugging code you did not manually write.

Why AI-native

Software development is changing permanently, and we are leaning all the way in. You will work in a team that ships fast with agents, where your leverage comes from judgment and systems thinking rather than typing speed. You will get access to whatever AI tools you need (Cursor, Claude Code, or anything else that makes you effective), and the freedom to use them aggressively. If you want to operate at the edge of how modern engineering gets done and level up your output, this role is built for that.

Join us to build where AI meets human connection.

Position Overview & Priorities

We are looking for versatile and experienced technical additions to our development team. The position offers an extensive amount of ownership and influence over our development process as we scale the team. We’re looking for people who enjoy solving meaningful problems and love seeing the things they build in the hands of real users.

Primary responsibility would be:

• Designing and building applications/SDK for the iOS platform
• Ensuring the performance, quality, and responsiveness of applications
• Collaborating with a team to define, design, and ship new features
• Defining correct architecture and following the right design principles.
• Helping maintain code quality, organization, and automatization

Work Location

Chembur, Mumbai

Prioritized Experiences and Capabilities

• Minimum 2-5 years of experience in iOS app development
• Leverage AI-native development workflows, including agentic IDEs and coding assistants (e.g., Cursor, Claude Code), to accelerate delivery while maintaining code quality, security, and engineering standards.
• Proficiency with Objective-C and Swift.
• Experience in 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
• Knowledge of other web technologies and UI/UX standards
• Understanding of Apple’s design principles and interface guidelines
• Knowledge of low-level C-based libraries is preferred
• Familiarity with cloud message APIs and push notifications
• Knack for benchmarking and optimization
• Proficient understanding of code versioning tools
• Familiarity with continuous integration

• Develop advanced and secure applications for Android phones and tablets
• Continuously discover, evaluate and implement new technologies, libraries for application to improve the functionality
• Keep eye on new technologies to maximize development efficiency
  Unit-test based coding for modular coding, reusability;
• Writing readable code; Maintain technical documentation
• Bug fixes and improving performance of existing applications
• Work on new ideas for products, it’s prototypes and estimates
• Collaborate on projects with a closely knit team

• 3+ Years of experience in developing iOS applications
• Experience in defining system architectures and exploring technical feasibility tradeoffs.
• Should have experience with Swift, Autolayout, MVVM / MVP Design pattern.
• Should have experience with common iOS libraries like RxSwift, Alarmofire etc
• Debugging skills, including identifying memory leaks, performance bottlenecks.
• Good command over Data Structures and Algorithms.
• Understanding of design for scalability, performance and reliability
• Experience working in an Agile environment and project management tool like Jira
• Good to have experience in working with Google Maps and have published one or more app on app store.
• Good to have experience in CI/CD, Core Data, Swift UI, App Clips, Integrating with Payment Gateways

• Designing and building advanced applications for the Android platform
• Collaborating with cross-functional teams to define, design, and ship new features
• Unit-test coding for robustness, including edge cases, usability and general reliability
• Working on bug fixing and improving application performance
• Continuously discovering, evaluating and implementing new technologies to maximize development efficiency

Desired Candidate Profile

• Bachelor's degree in computer science or related technical discipline
• 3-6 years Android app development experience
• Strong hands on experience in developing high performance mobile applications
• Strong knowledge of Java, Kotlin, Android SDK, different versions of Android, and how to deal with different screen sizes
• Familiarity with RESTful APIs to connect Android applications to back-end services
• Strong knowledge of Android UI design principles, patterns and best practices
• Experience with offline storage, threading and performance tuning
• Ability to design applications around natural user interfaces, such as touch
• Familiarity with cloud message APIs and push notifications
• Familiarity with the use of additional sensors, such as gyroscopes and accelerometer
• Experience in BLE and BT
• Good understanding of unit, system and end to end testing and automation of mobile applications / Android applications
• Familiarity with the MVC and MVVM design patterns
• Knowledge of the open-source ecosystem and the libraries available for common tasks
• Experience building, testing and distributing native apps that consume RESTful services
• Proficient understanding of code versioning tools such as GIT
• Strong analytical and problem solving skills
• Excellent oral and written communication skills
• Good logical sense, strong technical skills and the ability to learn new technologies quickly    

Job Description

Your primary focus will be development of iOS applications and their integration with back-end services. You will be working alongside other engineers and developers working on different layers of the infrastructure. Therefore, a commitment to collaborative problem solving, sophisticated design, and the creation of quality products is essential.

Responsibilities

Design and build applications for the iOS platform

· Ensure the performance, quality, and responsiveness of applications

· Collaborate with a team to define, design, and ship new features

· Identify and correct bottlenecks and fix bugs

· Help maintain code quality, organization, and automation

Skills

· Proficient with Objective-C or Swift {depending on project requirements}, 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

· Knowledge of other web technologies and UI/UX standards

· Understanding of Apple’s design principles and interface guidelines

· Knowledge of low-level C-based libraries is preferred

· Experience with performance and memory tuning with tools {such as Instruments and Shark, depending on project needs}

· Familiarity with cloud message APIs and push notifications

· Knack for bench marking and optimization

· Proficient understanding of code versioning tools {such as Git, Mercurial or SVN}

· Familiarity with continuous integration

Rejolut is one of the award winning fastest growing emerging tech company which is working on leading technology like Blockchian, ML & AI, Complex mobile & web apps, IoT etc.

The ideal candidate will be responsible for developing highly scalable and secure code.

Responsibilities:-
-Able to take the Extreme Ownership of modules/product/projects
-Able to learn & implement new technology/framework/library at God Speed
-Able to come with optimal solution for the business problem
-Can handle calls with the client & customer to know their feedback
-Writing clean code & able to dig into other's code or open source code.
-Build pixel-perfect, buttery smooth UIs across both mobile platforms.
-Leverage native APIs for deep integrations with both platforms.

Desired Candidate Profile:-

• Firm grasp of the JavaScript (and TypeScript or ClojureScript) language and its nuances, including ES6+ syntax
• Knowledge of (functional or object-oriented) programming
• Ability to write well-documented, clean Javascript code
• Rock solid at working with third-party dependencies and debugging dependency conflicts
• Familiarity with native build tools, like XCode, Gradle (Android Studio, IntelliJ)
• Understanding of REST APIs, the document request model, and offline storage
• Transition existing apps to React Native and work with native modules when required.
• Experience in releasing Android and iOS App store
• Experience working with Swift, Objective C, and Java a plus but not required

How we are different 
 -We are young and dynamic team who are obsessed with solving business problem at scale -We are a technology agnostic company who focus more on finding the optimal solution to business problem rather than technology

 Why to join us
 -We provide huge learning curve. Spending 1.5-2 years with us will put you 3 years ahead in the career
-We work only on cutting edge technology like React, React Native, Flutter, NodeJS, Python, Go, Svelte, ELM
-There are two technology Co-founder in the company ho are pretty much hands-on and have earlier bult the Consumer application which is downloaded millions of time and are in leadership position in copanies like Samsung, Purplle, Loylty Rewardz
-Get mentored by the best in the industry
-Flexible working hours
-Perks best in the industry

-Flat structure, no hierarchy

About the Role

As an Android Developer, you will own the Android app and strive to deliver the best learning experience out there to our learners that upGrad is known for. You will be responsible for developing features, taking those features to production and maintaining the existing code. Innovative nature and pro-active involvement in the product is taken very seriously at upGrad, therefore, a major part of your role would involve thinking about new features and new ways to deliver quality learning experience to our learners

Skills/Experience

1. Minimum 6+ years of hands-on Android development experience.
2. Strong Java and object-oriented concepts.
3. Solid understanding of Android architectural patterns especially MVVM and their importance in scalable software development process.
4. Strong understanding of Android fundamentals.
5. Experience in Android UI creation.
6. Experience of Android Live Data, Kotlin and Constraint layout would be a huge plus point.

Years of Exp –  Minimum 6-8 

Job Description

We are looking for an iOS/Mac developer responsible for the development and maintenance of applications aimed at a range of iOS devices including mobile phones, tablets and computers. Your primary focus will be development of iOS/Mac applications and their integration with back-end services.

 Responsibilities

• Design and build applications for the iOS/Mac platform
• Ensure the performance, quality, and responsiveness of applications
• Collaborate with a team to define, design, and ship new features
• Identify and correct bottlenecks and fix bugs

Skills

• Experience with Objective-C or Swift and Cocoa Touch.
• Experience with iOS frameworks such as Core Data, Core Animation, Foundation, Web Kit etc.
• Experience with offline storage, threading, and performance tuning
• Familiarity with RESTful APIs to connect iOS applications to back-end services
• Experience with third-party libraries and APIs & Other tools SMS, GPS, APNS, Email, XML parsing, GUI, UI designs, writing XML classes, UIKit, etc
• 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
• Proficient understanding of code versioning tools (Git or SVN)

Responsibility:

• Building user friendly Android and iOS Apps on React Native platform.
• Designing state-less components in React Native. State management with any of Redux, mobX or Flux.
• Writing modular, reusable, maintainable, well documented and fully tested code.
• Converting designs to mobile applications.
• Integrating with Rest APIs, while collaborating with Backend deve.
• Take complete ownership of the apps and change various elements/ technologies as per business need.
• Ensure optimum speed, performance, quality and responsiveness of application