Senior Android Developer

Position: Senior React Native Developer (4- 7 years)

Location: Remote (Company in Mumbai)

Company: Big Rattle Technologies Private Limited

Immediate Joiners only.

Summary:

We're looking for a seasoned React Native developer who has shipped production-grade mobile apps on both iOS and Android — ideally in the high-traffic, high-stakes world of e-commerce. You'll own the mobile experience end-to-end: architecture, performance, and flawless UX across devices.

Note: We are looking for a senior expert who has delivered multiple apps that are built from scratch and hosted on Apple Store/ Play Store i.e. e2e lifecycle.

KEY RESPONSIBILITIES

• Design and build scalable React Native apps for both iOS and Android from scratch to App Store / Play Store deployment.
• Architect complex e-commerce flows — product catalogues, cart, checkout, payment gateway integration, and order tracking.
• Optimize app performance: reduce TTI, maintain smooth 60fps animations, and manage memory on low-end devices.
• Integrate REST and GraphQL APIs; manage state with Redux Toolkit, Zustand, or React Query.
• Implement push notifications, deep linking, in-app navigation, and offline-first strategies.
• Write clean, well-tested code; maintain CI/CD pipelines using Fastlane, GitHub Actions, or Bitrise.
• Collaborate with designers, backend engineers, and product managers in Agile sprints.
• Conduct code reviews and mentor junior mobile developers.

Required Skills:

Core Mobile

▸ React Native CLI & Expo

▸ TypeScript

▸ React Navigation v6+

▸ iOS (Swift basics) & Android (Kotlin basics) ▸ Xcode & Android Studio

E-commerce & Integrations

▸ Product / Cart / Checkout flows

▸ Razorpay, Stripe, PayPal SDKs

▸ Wishlist, search UX, filters

▸ Order tracking & delivery status

▸ Push notifications & deep linking

State & Data

▸ Redux Toolkit / Zustand

▸ React Query / SWR

▸ REST & GraphQL APIs

▸ AsyncStorage / MMKV

▸ Firebase Realtime DB / Firestore

DevOps & Tooling

▸ Fastlane & GitHub Actions / Bitrise

▸ Jest (unit) & Detox (E2E)

▸ Firebase Crashlytics & Sentry

▸ Flipper / Reactotron

▸ App Store & Play Store deployments

Nice to Have skills: New Architecture · RN Web · AR try-on · RTL support · Shopify SDK · WCAG · Maps SDK

• React Native New Architecture (JSI / Fabric / TurboModules)
• React Native Web or monorepo setups (Nx, Turborepo)
• AR product try-on experiences (ARKit / ARCore)
• Shopify Storefront API or WooCommerce SDK experience
• Accessibility (WCAG mobile) implementation
• Live order-tracking maps (Google Maps / Mapbox)

Required Qualifications:

• Bachelor’s degree in Computer Science, Engineering, or a related technical 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.

Job Title: Senior Android Developer / Lead Engineer (Java | Kotlin | Android)

Experience Required

• 10+ years of overall software development experience
• Strong hands-on expertise in Java, Kotlin, and Android development

Role Overview

We are seeking a highly experienced Senior Android Engineer with deep expertise in Android OS internals, system-level development, and strong hands-on coding ability. The role demands strong technical leadership, architectural thinking, and the ability to design and build scalable, high-performance Android applications with system-level integrations.

This is a hands-on technical role (not people management) with focus on architecture, design, and complex problem solving.

Key Responsibilities

1. Android Application Development

• Design, develop, and maintain advanced Android applications using Java and Kotlin
• Write clean, efficient, and maintainable code with strong adherence to OOP principles
• Participate in hands-on coding, debugging, and code reviews

2. Android Framework & System-Level Development

• Work with Android OS-level APIs including:
• Services
• Binder IPC
• AIDL
• System services
• Understand and implement system-level integrations

3. Low-Level & Hardware Interaction

• Exposure to Kernel / Hardware Abstraction Layer (HAL)
• Work on device-level integrations such as:
• Sensors
• Bluetooth
• Other hardware peripherals

4. Performance & Stability Engineering

• Identify and resolve performance issues including:
• ANR (Application Not Responding)
• Memory leaks and optimization
• Ensure application stability and efficient resource usage

5. Concurrency & Multithreading

• Build robust multi-threaded applications
• Strong understanding of:
• Concurrency models
• Synchronization mechanisms
• Thread safety and race condition handling

6. System Design & Architecture

• Design scalable, modular, and maintainable Android applications
• Define architecture patterns and enforce best practices
• Contribute to system-level design decisions

7. Technical Leadership (Hands-on)

• Provide technical direction and mentorship to engineering team members
• Guide design and implementation decisions
• Conduct architecture and code reviews
• Remain actively involved in coding and technical problem solving

Preferred / Good to Have

• Exposure to IoT domain
• Exposure to HVAC systems or related embedded domains

Must-Have Skills Summary

• 10+ years Android development experience
• Strong Java, Kotlin, Android expertise
• Deep knowledge of Android internals and system APIs
• Strong OOP and coding skills (coding assessment required)
• Experience with performance tuning and memory management
• Strong understanding of multithreading and concurrency
• System design and architecture expertise
• Hands-on technical leadership

*Walkins for Indore candidate Android Developer and Flutter Developer*

We are hiring for Android Developer and a Flutter developer

Job Location : Indore(M.P)

Experience: Minimum trained fresher in Android or on Flutter up to 4 years ( only from Indore or nearby)

If you are expertise in Mobile app development on Android or Flutter with API parsing( Android java or on Flutter then please walk-ins for the interview between 11 A.m. to 7 P.m. ( Monday To Saturday we are available)

Company name: Logical Soft-Tech Pvt Ltd

Email : - talentlogicalsofttech @gmail.com, logicalhr.softtech @gmail.com, hrlogicalsofttech @gmail.com,

Address: - 2nd floor, 388,PU4, Scheme 54 PU4, Infront of Main Eye Retina Hospital, Vijay Nagar, Indore, M.P

Contact : - +91-78.69.731.59.5(HR), +91-82.10.25.18.24 (technical Department)

**For complete freshers we have an internship program on live projects with our technical developer team***

Job description:

Company Overview

Teknobuilt is an innovative construction technology company accelerating Digital and AI platforms to help all aspects of program management and execution for workflow automation, collaborative manual tasks and siloed systems. Our platform has received innovation awards and grants in Canada, UK and S. Korea and we are at the frontiers of solving key challenges in the built environment and digital health, safety and quality.

Teknobuilt vision is helping the world build better- safely, smartly and sustainably. We are on a mission to modernize construction by bringing Digitally Integrated Project Execution System - PACE and expert services for midsize to large construction and infrastructure projects. PACE is an end-to- end digital solution that helps in Real Time Project Execution, Health and Safety, Quality and Field management for greater visibility and cost savings. PACE enables digital workflows, remote working, and AI based analytics to bring speed, flow and surety in project delivery. Our platform has received recognition globally for innovation and we are experiencing a period of significant growth for our solutions.

Job Responsibilities

As a Mobile App Developer, you will need to:

• Flutter: To build cross-platform mobile apps for Android, IOS. This should include making responsive UIs to efficiently query data and also manage states in an optimised manner.
• Native Android and IOS: To build custom Flutter Packages.
• Firebase: Should have experience with Cloud Fire Database, Push Notifications, Cloud Functions and Analytics.
• Adobe XD: Should know how to use Adobe XD to use the design file and use it to build the app.
• Git: To manage and collaborate in different projects with the rest of the team.
• Design and build sophisticated and highly scalable apps using Flutter.
• Build custom packages in Flutter using the functionalities and APIs already available in native Android and IOS.
• SQLite: Understanding of persisting data with the SQLite database.
• Experienced in working with remote data via REST and JSON.
• Use CI/CD for smooth deployment.
• Must have built at least one Android, iOS, apps with Flutter or Hybrid Framework.

Qualification

Bachelor’s degree in computer science, IT or related fields

Key skills for Mobile App Developer

- Experience: 2 – 3 Years Flutter Developer, Android & IOS,

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

- Work with outside data sources and APIs.

- Worked on Dart.js

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

- Work on bug fixing and improving application performance

- Continuously discover, evaluate, and implement new technologies to maximise development efficiency

- Good understanding of databases.

Salary Range: Competitive

Employment Type: Full Time (Night-shift work may be required depending on project needs)

Location: Mumbai / Navi Mumbai

We appreciate your interest in Teknobuilt

Job Type: Full-time

Work Location: In person

Urgent Hiring !!!

We are looking for Flutter Developer,

1+ years of experience in developing native and cross-platform mobile applications

Experience in one of the programming languages: (Java and Kotlin (Android) Swift and Objective-C (iOS))

React Native (hybrid development)

Knowledge of Flutter SDK, Getex, Provider, Android Studio and IntelliJ, Visual Studio Code,

SQLite, MySQL, and PostgreSQL databases

REST APIs

Experience with Git and Jira

Familiarity with Agile development approaches

Experience: 1 to 2 years

Location: Surat (onsite & fulltime)

About TrueFan

TrueFan is a celebrity-fan experience platform that enables fans to connect with their favorite celebrities. The business runs on a mobile application where fans compete in an online quiz contest designed on the life of their favorite celebrity (their movies, trivia, facts, etc.) and the winners get a personalized video message from them. The idea is to provide millions of fans an opportunity to fulfill their lifelong dream of interacting with their favorite celebrity while keeping it simple, passion oriented, and engaging for them.

TrueFan is founded by ex-IIT-SRCC alumni and is backed by marquee investors including Ronnie Screwvala, Mayfield Fund, and Saama Capital.

For more details: visit https://www.truefan.in/" target="_blank">https://www.truefan.in/

Job Description

We are looking for a React Lead interested in building performant mobile apps on both the iOS and Android platforms. You will be responsible for architecting and building these applications, as well as leading and coordinating with the teams responsible for other layers of the product infrastructure. Building a product is a highly collaborative effort, and as such, a strong team player with a commitment to perfection is required.

Responsibilities

• Build pixel-perfect, buttery-smooth UIs across both mobile platforms.
• Leverage native APIs for deep integrations with both platforms.
• Diagnose and fix bugs and performance bottlenecks for performance that feels native.
• Reach out to the open source community to encourage and help implement mission-critical software fixes -React Native moves fast and often breaks things.
• Maintain code and write automated tests to ensure the product is of the highest quality.
• Transition existing React web apps to React Native.

What does the core role include?

• Leading a team of Developers to discuss user interface ideas and applications.
• Designing and developing high-volume, low-latency applications for mission-critical systems and delivering high-availability and performance
• Designing stateless components in React Native
• Contributing in all phases of the development lifecycle
• Working with the developers to create and maintain a robust framework to support the apps
• Working with the developers to build the interface with a focus on usability features

What else can you expect in the role?

• Prepare and produce releases of software components
• Optimizing performance for the apps
• Problem-solving skills, analytical mind, and positive attitude
• Ability to think from end users perspective and focused on improving the overall product experience.
• Deliver across the entire app life cycle concept, design, build, deploy, test, release to app stores and support

What can fetch you brownie points?

• Hands on experience with React Native is required
• Hands-on experience in React Native APIs, ReactJS, Javascript, ECMAScript (OOJS) and JSX.
• Strong understanding of JavaScript ecosystem
• Hands on experience on Android in creating Hybrid / Native applications
• Demonstrable UI/UX experience on a large-scale app.
• Thorough understanding of React Native development tools like IDEs (Nuclide, Atom, Sublime Text, or Visual
• Good knowledge of JS frameworks like ReactJS is a plus.

Desired Skills and Experience

Hybrid Apps,React Native, Native iOS and Android Architecture understanding.

Visit Us - https://www.truefan.in/" target="_blank">https://www.truefan.in/

INTRODUCTION:

i-Lanam was established in the year of 2020 with an insight to provide a

competitive approach towards application development to deliver the best quality applications at the cheapest of the prices. Looking at the need to have a company that can understand the ownership of the application output some quality developers came together to established this company.

SPECIALISATION:

Whatever be the size, complexity or requirement of your mobile application,

i-Lanam Technologies is a one-step solution in developing the finest Android,

iOS, React Native, PHP Application.

1. iPhone Application Development
2. Android Application Development
3. Web Development
4. UI/UX Design
5. IT Market Solution
6. IOT (Internet of Things)
   
   
   Canada Office

182 Central Ave, 3, London, Ontario N6A 1M7, CA

Ahmedabad Location
417 SHIVALIK SHILP Iscon Cross Road, 4th Floor, Ahmedabad, Gujarat 380015,IN

Responsibilities:

• Design and Build sophisticated and highly scalable apps using Flutter.
• Build custom packages in Flutter using the functionalities and APIs already available in native Android and IOS.
• Translate and Build the designs and Wireframes into hight quality reaponsive UI code.
• Write efficient queries for core Data.
• Use of Model-View-Controller ( MVC) and Model-View-ViewModel-Controller (MVVM) as it relates to designing, developing architecture and developing maintainable, testable and functional software that meets product requirements.
• Explore feasible architectures for implementing new features.
• Resolve any problems existing in the system and suggest and add new features in the complete system.
• Suggest space and time efficient Data Structures.
• Follow the best practices while developing the app and also keeping everything structured and well documented.
• Use CI/CD for smooth deployment.
• Document the project and code efficiently.
• Manage the code and project on Git in order to keep in sync with other team members and managers.
• Communicate with the Project Manager regarding status of projects and suggest appropriate deadlines for new functionalities.
• Ensure security guidelines are always followed while developing the app.
• Validate the cloud system to ensure any new changes do not compromise security of the backend server.
• Suggest new features and/or enhancements.
• Consulting with our customer facing representatives about software system design and maintenance.
• Interact with the Clinical Specialists and Product Manager to help understand end-user feedback.
• Maintaining software through product lifecycle including design, development, verification and bug fixes.
• Connect regularly with the Quality Assurance Specialist to deliver stable app.
• Resolve all the bugs reported by the Quality Assurance Specialist in a timely manner.
• Perform time profiling and memory leaks assessment.
• Execute app verification protocol.
• Write tests for the App.
• Following company policies and quality procedures to ensure quality product deliverables.

Requirements:

Must Have:

• Flutter: To build cross platform mobile apps for Android or iOS. This should include from making responsive UIs to efficiently query data and also mange states in an optimized mannner.
• Native Android and IOS: To build custom Flutter Packages.
• Firebase: Should have experience with Cloud Firestore, Push Notifications, Cloud Functions and Analytics.
• Adobe XD: Should know how to use Adobe XD to use the design file and use it to build the app.
• Git: To manage and collaborate in different projects with the rest of the team.

Good to Have:

• Angular
• Bootstrap
• JavaScript

Qualification:

• Bachelor’s degree in Computer Science, IT or related fields 

HBOX is a US Based Digital Health Company, Enabling Primary Care Providers (PCP) to

capture true Virtual Care Opportunities beyond Telehealth. We enable PCP to

provide Proactive and Continuous Care and add new Recurring monthly revenue

streams without any upfront cost. With our unique distribution and business

model, we are seeing fast acceptance and great adaption with our target

customers. We have built unique and Industry's first Integrated

Hardware, Cloud & AI Technologies based Virtual care Platform for PCP

Market. We are US focused Post revenue company with customers in 7 US States

and growing extremely fast.

We are looking for an Android Developer who possesses a passion for pushing mobile technologies to the limits. This Android app developer will work with their US-based counterpart to design and build the next generation of our mobile applications. This job requires both Android System and UI development competence.

Responsibilities

Design and build advanced applications for the Android platform

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

Work with outside data sources and APIs

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

Work on bug fixing and improving application performance

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

Requirements

BS/MS degree in Computer Science, Engineering or a related subject

Proven software development experience and Android skills development

Proven working experience in Android app development and

Have published at least one original Android app

Experience with Android SDK

Experience working with remote data via REST and JSON

Experience with third-party libraries and APIs

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

Solid understanding of the full mobile development life cycle.