Hi, we are looking for someone who can help us fix critical issues with our e-commerce platform and integrate essential shipping and payment APIs across both our Flutter mobile app and React Next.js web application.

We have problems with responsive design inconsistencies between our mobile and web platforms, and we're missing crucial API integrations that are preventing us from providing seamless shipping and payment experiences to our customers.

What we want

UI Fixes: Resolve 2-3 specific responsive design issues affecting our checkout flow on both Flutter app and Next.js web platform

Fix checkout form alignment problems on tablet screens in Flutter
Resolve navigation menu collapse issues on web version
Adjust product grid layouts to display properly across all screen sizes

API Integration: Implement REST API connections with both GET and POST methods for:

Shipping APIs: DHL for package tracking (GET) and ShipRocket for order creation (POST)
Payment APIs: Stripe for credit card processing and PayPal for alternative payments

Cross-Platform Consistency: Ensure identical functionality and user experience between mobile Flutter app and React Next.js web application

Requirements

Technical Skills

Proven experience with Flutter development and responsive widget implementation
Strong background in React Next.js with API routes and server-side rendering capabilities
REST API integration expertise, specifically with logistics and payment gateways
Experience with DHL API, ShipRocket API, Stripe, and PayPal integrations
Proficiency in responsive design using Flexbox and media queries

Project Management

Ability to complete work within 2-hour focused session
GitHub collaboration experience for version control
Clear communication and regular progress updates
Provide testing documentation for all implemented features

Nice to Have

Previous e-commerce platform development experience
Knowledge of cross-platform development best practices
Experience with Braintree Drop-in UI for mobile payments

Deliverables

Fixed responsive layouts on both platforms
Fully functional shipping API integration with real-time tracking
Complete payment processing system supporting multiple gateways
Clean, documented code with proper error handling
Brief testing guide for all new API endpoints

Timeline: 2-hour focused work session (can be split across 2 days if needed)

This is a well-defined scope perfect for an experienced developer who can work efficiently. The $40~60/hour rate aligns with industry standards for API integration specialists. We're looking for someone who can deliver quality results in a focused timeframe rather than dragging out the work.

If you have experience working with React and Next.js frameworks and can deliver quality API integrations within our timeline, we'd love to hear from you. Please share examples of similar cross-platform projects you've completed and confirm your availability for a 2-hour session this week.

Note: We prefer this as an hourly project because it allows for more flexibility if we need minor adjustments or have questions during implementation. The scope is clearly defined, so 2 hours should be sufficient for an experienced develope

Qualifications

Proven experience with Flutter development and responsive widget implementation
Strong background in React Next.js with API routes and server-side rendering capabilities
REST API integration expertise, specifically with logistics and payment gateways
Experience with DHL API, ShipRocket API, Stripe, and PayPal integrations
Proficiency in responsive design using Flexbox and media queries
GitHub collaboration experience for version control
Previous e-commerce platform development experience
Knowledge of cross-platform development best practices
Experience with Braintree Drop-in UI for mobile payments
This is a well-defined scope perfect for an experienced developer who can work efficiently
We're looking for someone who can deliver quality results in a focused timeframe rather than dragging out the work
If you have experience working with React and Next.js frameworks and can deliver quality API integrations within our timeline, we'd love to hear from you
Note: We prefer this as an hourly project because it allows for more flexibility if we need minor adjustments or have questions during implementation
The scope is clearly defined, so 2 hours should be sufficient for an experienced develope

Responsibilities

UI Fixes: Resolve 2-3 specific responsive design issues affecting our checkout flow on both Flutter app and Next.js web platform
Fix checkout form alignment problems on tablet screens in Flutter
Resolve navigation menu collapse issues on web version
Adjust product grid layouts to display properly across all screen sizes
API Integration: Implement REST API connections with both GET and POST methods for:
Shipping APIs: DHL for package tracking (GET) and ShipRocket for order creation (POST)
Payment APIs: Stripe for credit card processing and PayPal for alternative payments
Cross-Platform Consistency: Ensure identical functionality and user experience between mobile Flutter app and React Next.js web application
Ability to complete work within 2-hour focused session
Clear communication and regular progress updates
Provide testing documentation for all implemented features
Fixed responsive layouts on both platforms
Fully functional shipping API integration with real-time tracking
Complete payment processing system supporting multiple gateways
Clean, documented code with proper error handling
Brief testing guide for all new API endpoints
Timeline: 2-hour focused work session (can be split across 2 days if needed)
Please share examples of similar cross-platform projects you've completed and confirm your availability for a 2-hour session this week

E-Commerce Cross-Platform Integration Project -

Job Type