Frontend Flutter and Backend Node js Developer

We are looking for a skilled Flutter and / or Node js Developer to design, develop, and maintain cross-platform mobile applications for Android and iOS using the Flutter and node js. The ideal candidate should have hands-on experience with Dart programming, state management libraries, admob, node js, and API integration to create high-performance and visually appealing mobile solutions.

Key Responsibilities:

- Develop and maintain mobile applications using Flutter and Dart.

- Translate UI/UX wireframes into clean, maintainable code.

- Integrate RESTful APIs and third-party services.

- Manage app state using Provider, Bloc, Riverpod, or similar tools.

- Perform code reviews, debugging, optimization, and testing.

- Collaborate with designers and backend developers to ensure smooth integration.

- Deploy and maintain applications on Google Play Store and Apple App Store.

Required Skills:

- Proficiency in Flutter framework and Dart language.

- Strong understanding of object-oriented programming principles.

- Experience with Firebase, Cloud Firestore, and authentication.

- Familiarity with Git and version control workflows.

- Solid knowledge of UI design, animations, and responsive layouts.

- Understanding of RESTful APIs, JSON, and third-party integrations.

- Experience with CI/CD pipelines is a plus.

Qualifications:

- Bachelor’s degree in Computer Science, IT, or related field (preferred).

- 1 - 3 years of professional experience in mobile app development.

- Proven portfolio of published Flutter apps.

- Excellent problem-solving and analytical skills.

- Ability to work independently and in agile team environments.

3. Position: Tester (Full-Time, Office-Based)

Location: Tambaram, Chennai (No WFH - Daily office required)

Experience: 1-3 years

Salary: Upto 4 Lakh per annum

Joining: Immediate

Env: (Pre-registration startup phase)

1. Functional Testing (30%)

* Test REST APIs with Postman for Node.js backend endpoints

* Verify Flutter Android/iOS app flows: login, job posting, matching

* Test OTP authentication, payments, and push notifications end-to-end

* Validate user roles (customer/provider) across app versions

* Check Firebase notifications on real Android/iOS devices

2. UI/UX Testing (25%)

* Test Google Maps integration for location accuracy on mobile

* Verify live video calls, chat, and voice notes in Android/iOS apps

* Check AdMob ads display (banner, interstitial, rewarded) without crashes

* Test responsive UI across screen sizes and orientations

* Validate dark/light mode and Tamil/English language switching

3. Performance Testing (20%)

* Load test APIs with 1000+ concurrent mobile users (JMeter)

* Measure app startup time, API response (<2s), battery usage

* Test WebRTC video calls under poor network (3G/4G)

* Monitor memory leaks during long chat sessions

* Benchmark AdMob ad loading times across devices

4. Compatibility Testing (15%)

* Test on 20+ Android devices (API 24-35) and iOS (14-18)

* Verify UPI payments (PhonePe/GPay) on popular Indian devices

* Cross-check PostgreSQL data consistency via app queries

* Test offline mode for cached jobs, chats, and ads

* Validate GDPR consent flows for ad serving

5. Automation & Reporting (10%)

* Write Appium tests for core flows (Flutter Android/iOS)

* Automate API tests with Newman + CI/CD pipeline

* Track bugs with Jira, generate daily test reports

* A/B test ad placements and measure revenue impact

* Maintain device farm for parallel testing

Current Tech Stack:

Node.js + Express.js (REST APIs) | real-time video/voice calls like LiveKit ( | PostgreSQL 15 + Redis (caching) | Google Maps API (geolocation) | Razorpay (payments) | Socket.io (live notifications), Admob Ad placement

1. API Building (40%)

* Create RESTful APIs with Node.js + Express.js + TypeScript for Flutter Android/iOS mobile apps

* Handle mobile number OTP authentication and secure sessions

* Build job posting, location matching, and Firebase push notifications to phones

* Add rate limiting and security middleware for mobile traffic

* Document APIs for mobile app testing

2. Real-Time Features (25%)

* Integrate live video calls between users in Android/iOS apps

* Show real-time availability status using Google Maps location services

* Add live chat with typing indicators and read receipts in mobile apps

* Enable voice notes via mobile recording

* Use WebRTC for cross-platform mobile communication

3. Database Work (20%)

PostgreSQL/MySQL:

* Set up tables for users, jobs, ratings, earnings, transactions with ACID compliance

* Add geospatial indexes for nearby searches using Google Maps Platform

* Create queries for top nearby providers

* Scale database for growing mobile user base

Redis:

* Store sessions, live status, and feeds for Android/iOS apps

* Track leaderboards and rate limits

* Use Pub/Sub for instant notifications to phones

4. Business Logic & Payments (10%)

* Integrate payment gateways for job payments and payouts in mobile apps

* Calculate commissions (10-15%)

* Build earnings dashboards (daily/weekly/monthly) for mobile

* Handle refunds, disputes, and UPI (PhonePe/GPay)

* Support SMS fallback for critical alerts

5. Setup & Maintenance (5%)

* Docker containers for Node.js + PostgreSQL/MySQL + Redis backend

* Process clustering for mobile API performance

* CI/CD with GitHub Actions to cloud deployment

* Error tracking and monitoring

* Daily database backups

6. AdMob Integration (5%)

* Integrate Google AdMob SDK for Android/iOS mobile apps

* Implement banner, interstitial, and rewarded video ads

* Track ad revenue analytics and A/B test ad placements

* Handle ad caching and offline support for better user experience

* Ensure GDPR/CCPA compliance for ad serving

Job Types: Full-time, Contractual / Temporary
Contract length: 6 months

Pay: ₹275,000.00 - ₹400,000.00 per year

Work Location: In person