Mobile Application Developer

Role & Responsibilities:

Design and develop mobile applications using React Native.

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

Ensure performance, quality, and responsiveness of applications.

Debug and fix issues, improve application performance, and maintain code quality.

Work onsite with the client team in Trichy.

Requirements:

Minimum 2 years of hands-on experience in React Native mobile app development.

Strong knowledge of JavaScript/TypeScript and mobile UI/UX principles.

Experience with REST APIs, third-party libraries, and integration.

Ability to work independently and in a team environment.

Immediate availability preferred.

Key Responsibilities

• Develop, maintain, and enhance cross-platform mobile applications for Android and iOS using React Native.
• Build responsive, user-friendly mobile interfaces with a strong focus on performance and usability.
• Integrate mobile applications with REST APIs and backend services.
• Work with React Native WebView to integrate web-based functionality into mobile applications.
• Implement navigation, state management, push notifications, deep linking, and other mobile app features.
• Debug, troubleshoot, and optimize applications for performance, stability, and reliability.
• Integrate third-party SDKs, libraries, and services into mobile applications.
• Work with native Android and iOS configurations when required.
• Manage app builds, releases, and deployments to the Google Play Store and Apple App Store.
• Collaborate with designers, backend developers, and the product team to deliver high-quality features.
• Write clean, reusable, and maintainable code while following development best practices.
• Participate in code reviews, testing, and continuous improvement of mobile applications.

Must-Have Qualifications

• Hands-on experience with React Native and mobile application development.
• Strong understanding of JavaScript, ES6+, and React fundamentals.
• Good knowledge of React Hooks, functional components, and state management.
• Experience integrating REST APIs and handling asynchronous operations.
• Familiarity with mobile navigation, app lifecycle, and platform-specific behavior on Android and iOS.
• Experience with Git and version control workflows.
• Understanding of responsive layouts, and mobile UI development.
• Knowledge of debugging, performance optimization, and error handling.
• Ability to troubleshoot issues independently and deliver reliable solutions.

Good-to-Have Qualifications

• Experience with TypeScript.
• Familiarity with React Native WebView and hybrid mobile applications.
• Experience with push notifications using Firebase Cloud Messaging or similar services.
• Knowledge of native Android development using Java/Kotlin or iOS development using Swift.
• Experience with Fastlane, CI/CD pipelines, and automated mobile app builds.
• Familiarity with publishing and maintaining apps on the Google Play Store and Apple App Store.
• Experience with Firebase, analytics, and third-party SDK integrations.
• Knowledge of Node.js and backend API development.

Soft Skills

• Strong problem-solving skills and attention to detail.
• Ability to learn new technologies and adapt to changing requirements.
• Good communication and collaboration skills.
• A proactive attitude with a willingness to take ownership of tasks.
• Ability to work effectively in a fast-paced startup environment.
• Passion for building high-quality mobile applications and improving user experiences.

Why Join Toolstr?

• Work with a fast-growing startup building products for the global Shopify ecosystem.
• Get hands-on experience building and shipping real-world mobile applications.
• Work on challenging technical problems across Android, iOS, and web technologies.
• Learn, grow, and take ownership of features from development to release.
• Be part of a collaborative team that values innovation, initiative, and continuous learning.

About the role

You'll join our React Native team and work under a Senior React Native Developer to build and ship features for our iOS and Android apps. You'll also work with the Backend team on API integrations. This is a good role for someone who wants to grow quickly in mobile development.

What you'll do

• Build mobile app features and UI components in React Native (Expo).
• Integrate backend APIs into the mobile app with guidance from the senior developer and the Backend team.
• Fix bugs, write tests and improve app performance and stability.
• Help with builds and releases to the App Store and Play Store.
• Take part in code reviews, standups and sprint planning.

What we're looking for

• 1–3 years of experience with React Native (internships and solid personal projects count).
• Good knowledge of JavaScript/TypeScript and React fundamentals.
• Basic understanding of REST APIs, JSON and how frontends talk to backends.
• Eagerness to learn and openness to feedback.
• Clear communication. You should be comfortable asking questions and working with backend and design teammates.
• Experience working with AI tools for development such as Claude and Cursor

Note: You don't need to be full stack. A basic understanding of backend concepts and the willingness to work with the Backend team is enough.

Nice to have

• A published app or personal project on the App Store or Play Store.
• Exposure to Expo, Git workflows and mobile debugging tools.

📢 Hiring: React Native (Mobile Application Developer )

📍 Location: Onsite – Trichy

🕒 Experience: 2+ Years

📄 Type: Contract (Immediate Joiners Preferred)

Role & Responsibilities:

Design and develop mobile applications using React Native.

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

Ensure performance, quality, and responsiveness of applications.

Debug and fix issues, improve application performance, and maintain code quality.

Work onsite with the client team in Trichy.

Requirements:

Minimum 2 years of hands-on experience in React Native mobile app development.

Strong knowledge of JavaScript/TypeScript and mobile UI/UX principles.

Experience with REST APIs, third-party libraries, and integration.

Ability to work independently and in a team environment.

Immediate availability preferred.

Mobile Application Development

Required Skills

- Strong experience in React Native or Flutter.

- Experience developing and maintaining production-level mobile applications.

- Knowledge of state management, application lifecycle management, and navigation frameworks.

- Experience integrating device features such as microphone, camera, notifications, and background services.

- Strong understanding of REST APIs, WebSockets, and secure authentication systems.

- Experience publishing applications on Google Play Store and Apple App Store.

- Ability to optimize performance, troubleshoot issues, and maintain code quality.

Responsibilities

- Design and develop AI-powered features for the Ziqra platform.

- Build and maintain high-quality cross-platform mobile applications.

- Integrate speech, video, and AI technologies into user-facing products.

- Collaborate closely with founders and product teams.

- Participate in architecture discussions and technical decision-making.

- Ensure scalability, security, and performance of applications.

What We Offer

- Competitive monthly stipend.

- Opportunity to work directly with founders.

- Flexible and remote-friendly work environment.

- Ownership of impactful product features.

- Potential opportunity for long-term growth and early equity discussions.

Technical Skills

• 1. 4 years developing Reactive Native Front End App Experiences using React Native and the Expo Framework with core understanding of JavaScript Bridge (JSI) and the rest 4 building Front End App Experience
• Brownfield Experience
• 2. Deep proficiency in JavaScript and TypeScript (highly preferred), including modern ES6+ concepts
• 3. Strong command of React Principles, React Hooks, Context API, and Component lifecycles
• 4. Knowledge of how to use Component Libraries to build applications
• 5. Hands-on experience with the latest Expo SDKs, Expo Router (file-based routing), and EAS workflows
• 6. Should understand concepts around caching and how to achieve the same
• 7. Proven experience with state management libraries such as Zustand, Redux Toolkit, or MobX
• 8. Deep understanding of iOS and Android deployment Lifecycles, application
• signing, and app store guidelines
• 9. Deep skills of Git, GitHub, and continuous integration pipelines
• 10. Proficient in using Agentic AI to leverage spec, skills and agents to do 50% of their
• work across development, documentation and testing

Where You’ll Create Impact

·         Build & Ship: Architect, build, and deploy production-grade iOS and Android features using React Native + TypeScript from scratch to store release.

·         Pipeline Ownership: Own the full release lifecycle using Expo + EAS, managing App Store/Play Store submissions, provisioning, and CI/CD.

·         Craftsmanship: Turn complex Figma designs into ultra-fast, polished components with fluid animations, backed by clean API integrations and rock-solid performance.

·         Systems Thinking: Scale mobile infrastructure to handle heavy data flows, offline sync, and real-time enterprise AI features seamlessly.

What Sets You Up for Success

·         5+ years of hardcore mobile engineering experience (Android/iOS foundation, ideally within high-growth, high-intensity startups).

·         Outlier Agency: High-integrity work ethic, extreme initiative, and zero need for hand-holding.

·         Performance Obsession: Track record of shipping silky-smooth, high-performance apps with complex UI, animations, and tight memory management.

·         Release Mastery: Deep comfort with Figma-to-code workflows and navigating the entire release cycle from local IDE to live store deployments.

·         Quality Mindset: Hands-on experience with unit testing, end-to-end QA pipelines, and production monitoring.

About the role

You'll own React Native development at the company. You'll lead our mobile app from architecture through to App Store and Play Store releases, and you'll mentor a Junior React Native Developer. You'll work closely with the Backend team on APIs and integrations, so clear communication across teams is essential.

What you'll do

• Own the architecture, code quality and technical direction of our React Native (Expo) apps.
• Build and maintain high-quality, performant features for iOS and Android.
• Manage the full release cycle: builds, signing, versioning, OTA updates, store submissions, and handling review feedback.
• Work with the Backend team to define API contracts, data needs and integration approaches.
• Mentor the Junior React Native Developer through code reviews, pairing and guidance along with the TPM.
• Work with Design to turn designs into polished mobile experiences.
• Take part in the senior on-call rotation, including international paging.

What we're looking for

• 6+ years of mobile development, with 3+ years of hands-on React Native work.
• Strong TypeScript/JavaScript and solid knowledge of React.
• Proven experience shipping and maintaining apps on both the Apple App Store and Google Play Store.
• Experience with Expo and EAS (Expo Application Services), native modules, push notifications, deep linking, and performance tuning.
• Solid understanding of REST/GraphQL APIs, authentication and state management.
• Experience leading or mentoring other developers.
• Excellent communication skills. You should be able to discuss requirements and trade-offs clearly with backend, web and design teams.
• Experience working with AI tools for development, and a willingness to integrate AI into the SDLC

Note: Full-stack experience is a strong plus but not mandatory. If you're an excellent mobile specialist who works well with backend engineers, we want to hear from you.

Nice to have

• Backend experience with Django.
• Experience with Next.js or sharing code between web and mobile.
• Experience with app analytics and crash monitoring tools (for example Sentry or PostHog).

Position Title:

SDE Intern – Mobile Application

Location: Bangalore

Duration: 6 months (with potential for full-time conversion based on performance)

About PGAGI:

At PGAGI, we believe in a future where AI and human intelligence coexist in harmony, creating a world that is smarter, faster, and better. We are not just building AI; we are shaping a future where AI is a fundamental and positive force for businesses, societies, and the planet.

Key Responsibilities:

• Develop and maintain cross-platform mobile applications using Flutter or React Native.

• Collaborate with UI/UX designers and backend developers to deliver seamless app experiences.

• Integrate RESTful APIs and work with JSON data parsing, asynchronous programming, and real-time data handling.

• Participate in regular code reviews and follow best practices in mobile development.

• Debug and troubleshoot issues, optimize app performance, and write unit tests.

• Learn and apply Git-based version control, task tracking, and agile workflows.

⸻Required Skills & Knowledge :Programming & Frameworks:

• Proficiency in Dart (Flutter) or JavaScript/TypeScript (React Native).

• Good understanding of OOP and functional programming principles.

• Experience with:

• Flutter: Widgets, navigation, state management (Provider, Bloc, etc.)

• OR React Native: Components, Redux, Context AP

IComputer Science Fundamentals:

• Basic understanding of data structures (arrays, stacks, queues, hash tables).

• Knowledge of basic algorithms (sorting, searching).

• Awareness of time complexity and code efficiency.

• Solid grasp of programming concepts like variables, loops, conditionals.

Mobile Development Concepts:

• Experience in building and deploying cross-platform mobile apps.

• Understanding of responsive design, Material Design, and iOS Human Interface Guidelines.

• Familiarity with asynchronous operations (async/await, Promises) and REST API integrations.

Networking & APIs:

• Basic knowledge of HTTP/HTTPS, request methods, and status codes.

• Hands-on experience using Postman or similar tools for API testing.

• Understanding of API security, including authentication and SSL basics.

Tools & Technologies:

• Familiarity with Git (GitHub, GitLab, Bitbucket).

• Experience using IDEs like Android Studio, VS Code, or Xcode.

• Awareness of unit testing frameworks (e.g., Flutter test, Jest).

• Understanding of build tools such as Gradle or Metro bundler.⸻

Preferred Qualifications:

• Pursuing or recently completed a B.E./B.Tech in Computer Science, IT, or related fields.

• Portfolio of previous mobile app projects (GitHub/Play Store link preferred).

• Willingness to learn, experiment, and work in a collaborative environment.

⸻What We Offer:

• Opportunity to work on real-world projects with direct mentorship from industry experts.

• Certificate of Internship and potential PPO (Pre-Placement Offer) based on performance.

• Exposure to modern product development practices and cross-functional team collaboration.

Apply here (application form): https://forms.gle/EVnJ9dPSjHg5WzqH7

SuperKalam (YC W23) is building the best AI tutor platform out of India, in the vein of Duolingo. This is a high impact role. We are eager to talk to a Mobile Engineer with an amazing sense of quality in engineering deliverables and strong ownership.

Requirements

• Ideally 2 to 4 yrs of experience building mobile apps + backend (React Native and NodeJS/NestJS)
• Strong engineering fundamentals, loves great architecture and writes scalable code
• Uses AI in workflow beyond prompting: skills, plugins, workflows, loops, agents
• Mobile: high quality UI and smooth animations; handled performance, optimized app builds, push notifications. Bonus: bridges, widgets, own libraries
• Backend: CRUD APIs, Redis, queues, caching, PostgreSQL / MySQL, rate limiting, basics of scaling and security, cloud (AWS, Azure or GCP). Bonus: Elasticsearch
• Preferred: Gen AI engineering (production AI pipelines, agentic workflows, voice agents, RAG / knowledge graphs). Bonus: Python

Responsibilities

• Build new features and initiatives across backend and the mobile app
• Deployments, performance, push notifications
• Set up tooling and run experiments: crons, automation workflows, AI tooling
• Product and design reviews
• Keep pushing the team's tech quotient with evolving technology and AI tooling
• Decide for speed to production plus quality for today

Who will thrive here: 2+ yrs in a product based startup (including internship), enjoys complex engineering and product problems, engineering mindset (scripts, automation, quick dashboards), ownership mindset and a strong individual contributor, first principle thinking and clear communication.

Compensation: 15 to 35 LPA based on experience. ESOPs for the right candidate.

Interview: resume shortlisting, 30 min intro meet, 1h 15m in-person fundamentals round (JS/TS, no DSA), 1h 15m in-person system design (LLD), optional 2-3 day fullstack mobile assignment, optional 1h 15m system design (HLD).

Location: Bengaluru. Full-time. Full JD: https://www.ycombinator.com/companies/superkalam/jobs/2gkQmXq-mobile-engineer-react-native-fullstack