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Fiverr Pro
English
$
USD
I will integrate third party apis for ecommerce, payments and automation
Kamrul Hasan
Level 1
5.0
5.0
What people loved about this freelancer
ff_hh_pph
Germany
Excellent work on Phase 2! Bidirectional sync, reaction and thread reply support, dynamic multi-channel routing, and a clean codebase. Professional communication throughout. Highly recommended!
ff_hh_pph
Germany
Excellent work on Phase 2! Bidirectional sync, reaction and thread reply support, dynamic multi-channel routing, and a clean codebase. Professional communication throughout. Highly recommended!
ff_hh_pph
Germany
Kamrul delivered a solid Phase 1 of our Nextcloud Talk ↔ Slack bridge project. The implementation covers bidirectional message sync, HMAC security, Redis deduplication,...
About this gig
Need a reliable third-party API integration expert?
I help businesses connect eCommerce, payment, and external APIs securely and efficiently.
What I help you with
I will seamlessly integrate third-party APIs into your application to automate workflows, sync data, and improve business operations.
API Integration Services (Optimized)
- Shopify, WooCommerce & Amazon API integration
- Stripe & PayPal payment gateway integration
- Google, Facebook & custom REST APIs
- Data synchronization between platforms
- Webhook setup & automation
- Error handling & logging
- Webhook Setup & Automation
- Workflows Automation using N8N, Zapier
Tech Stack
Python | FastAPI | Django
REST APIs | OAuth2 | JSON
Postman | Requests
Why Choose Me
- Secure & stable integrations
- Clean, well-documented code
- Fast delivery & clear communication
- Post-delivery support
Message me before ordering to review your API documentation and integration needs.
Get to know Kamrul Hasan
Kamrul Hasan
Hire me anytime for your work
Level 1
- FromBangladesh
- Member sinceJul 2021
- Avg. response time1 hour
- Last delivery4 days
Languages
Bengali, English, German, Russian
I’m a senior full-stack web developer with 5+ years of experience and 70+ delivered projects, specializing in scalable web applications and backend systems.
I help startups, SaaS founders, and businesses build secure, high-performance apps using React / Next.js on the frontend and Python (Django, FastAPI, Flask) on the backend.
🔹 REST & third-party API integrations, n8n automation, payments & SaaS
🔹 E-commerce/logistics (Amazon, eBay, Shopify, Temu, DHL, FedEx, Royal Mail)
🔹 Clean, maintainable code with testing & CI/CD
🔹 Production-ready Docker deployments
My Portfolio
Other Software Development Services I Offer
FAQ
Which APIs have you worked with before?
I’ve integrated Amazon, eBay, Shopify, WooCommerce, TikTok Shop, Temu, Walmart, Shein, DHL, Royal Mail, Evri, and more.
Can you integrate multiple platforms at once?
Yes! For example, sync your Shopify store with both Amazon and DHL shipping APIs in one workflow.
Do you offer post-delivery support?
Yes, I provide up to 7 days of support after delivery depending on the package selected.
What if my API requires authentication tokens or special access?
No problem — I handle OAuth, API keys, IP whitelisting, and other security protocols securely.
Reviews
8 reviews for this Gig
| (8) | ||
| (0) | ||
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Rating Breakdown
- Seller communication level
- Quality of delivery
- Value of delivery
Sort By
Most relevant
F ff_hh_pph
Repeat Client
Germany
Excellent work on Phase 2! Bidirectional sync, reaction and thread reply support, dynamic multi-channel routing, and a clean codebase. Professional communication throughout. Highly recommended!
$50-$100
Price
2 days
Duration
Helpful?F ff_hh_pph
Repeat Client
Germany
Excellent work on Phase 2! Bidirectional sync, reaction and thread reply support, dynamic multi-channel routing, and a clean codebase. Professional communication throughout. Highly recommended!
$200-$400
Price
2 weeks
Duration
Helpful?F ff_hh_pph
Repeat Client
Germany
Kamrul delivered a solid Phase 1 of our Nextcloud Talk ↔ Slack bridge project. The implementation covers bidirectional message sync, HMAC security, Redis deduplication, file-sink routing, and user mapping — all as agreed. Communication was professional and responsive throughout. We are already planning...
$200-$400
Price
11 days
Duration
K 
Seller's Response
Helpful?K 
kegel8ellie
Repeat Client
United Kingdom
Great work as usual - thank you!
$200-$400
Price
10 days
Duration
K Seller's Response
Helpful?K kegel8ellie
Repeat Client
United Kingdom
Delivered on time and everything that I needed! Thank you!
$200-$400
Price
8 days
Duration
Helpful?
Reviews
8 reviews for this Gig
| (8) | ||
| (0) | ||
| (0) | ||
| (0) | ||
| (0) |
Rating Breakdown
- Seller communication level
- Quality of delivery
- Value of delivery
Sort By
Most relevant
F ff_hh_pph
Repeat Client
Germany
Excellent work on Phase 2! Bidirectional sync, reaction and thread reply support, dynamic multi-channel routing, and a clean codebase. Professional communication throughout. Highly recommended!
$50-$100
Price
2 days
Duration
Helpful?F ff_hh_pph
Repeat Client
Germany
Excellent work on Phase 2! Bidirectional sync, reaction and thread reply support, dynamic multi-channel routing, and a clean codebase. Professional communication throughout. Highly recommended!
$200-$400
Price
2 weeks
Duration
Helpful?F ff_hh_pph
Repeat Client
Germany
Kamrul delivered a solid Phase 1 of our Nextcloud Talk ↔ Slack bridge project. The implementation covers bidirectional message sync, HMAC security, Redis deduplication, file-sink routing, and user mapping — all as agreed. Communication was professional and responsive throughout. We are already planning...
$200-$400
Price
11 days
Duration
K Seller's Response
Helpful?K kegel8ellie
Repeat Client
United Kingdom
Great work as usual - thank you!
$200-$400
Price
10 days
Duration
K Seller's Response
Helpful?K kegel8ellie
Repeat Client
United Kingdom
Delivered on time and everything that I needed! Thank you!
$200-$400
Price
8 days
Duration
Helpful?
