Browse categories
Explore
Fiverr Pro
English
$
USD
I will integrate stripe mailchimp google analytics and any third party api
Abdul Ghaffar
Level 2
5.0
5.0
About this gig
Half the integration bugs I get hired to fix come from devs who copied a Stripe quickstart and never read the webhook docs. Race conditions on subscription upgrades, missed events, duplicate charges, GA4 firing twice, Mailchimp lists out of sync. I build integrations that work in production at 3am when your founder is sleeping.
What I integrate:
Payments: Stripe (Checkout, Payment Element, Subscriptions, Connect, Tax, Invoicing, Billing Portal), Lemon Squeezy, PayPal.
Email and marketing: Mailchimp, Resend, SendGrid, Klaviyo, Customer.io, HubSpot, ActiveCampaign.
Analytics: GA4, Google Tag Manager (client and server side), Meta Pixel + Conversion API, PostHog, Mixpanel, Amplitude, Plausible.
Productivity and ops: Slack, Twilio, Notion, Airtable, Calendly, Zapier, Make, Linear, Jira, Salesforce, HubSpot CRM.
AI and custom: OpenAI, Anthropic, Pinecone, Supabase, Firebase, any REST or GraphQL API.
What you get:
Secure webhook handlers with signature verification and idempotency. Sandbox to production migration checklist. Postman collection. Monitoring and alert recommendations. Full documentation. Clean Git history.
Send your stack and what you want connected.
Get to know Abdul Ghaffar
Abdul Ghaffar
Senior Nextjs, Nodejs and AI App Engineer
Level 2
- FromPakistan
- Member sinceAug 2020
- Avg. response time1 hour
- Last delivery1 day
Languages
English, Urdu, Punjabi
I build production grade web apps and AI products for founders and funded startups. 5 years engineering experience across Next.js, React, Node.js, MongoDB, Postgres, and modern AI tooling (Lovable, Cursor, Replit, Bolt, Claude). I have shipped 100+ projects on Fiverr with a 5.0 rating across 150+ reviews and 100 percent client satisfaction. Whether you need a SaaS frontend, a scalable API, a third party integration, a Stripe payment system, or a custom RAG or GraphRAG chatbot, send me a brief and I will quote within an hour. Clean code, clear communication, no surprises.
My Portfolio
Other Software Development Services I Offer
FAQ
What information do you need to start?
Tell me what services you want connected and on what platform (Next.js, Node, WordPress, Shopify, etc). For Stripe, share which products and plans. For analytics, share what events matter.
Do I share my API keys with you?
Only test or sandbox keys during build. For production, I deploy with environment variables and never store live keys.
Can you build Stripe subscriptions?
Yes. Subscriptions, free trials, proration, upgrades, downgrades, customer billing portal, dunning, taxes, and webhooks for every state change. Standard and Premium.
What about webhook reliability?
I implement signature verification, idempotency keys, retries with exponential backoff, and dead letter queues. Plus a recommended monitoring setup (Sentry or Logtail).
Can you migrate me off Zapier?
Yes. Many clients save thousands a month by replacing Zapier flows with direct API integrations.
Can you fix an existing broken integration?
Yes. Send the repo and the error logs. I quote based on scope after a free 30 minute review.
Do you support WordPress, Shopify, or Webflow?
Yes. Native plugins or custom API integrations on each.
Do you sign NDAs?
Yes
Reviews
12 reviews for this Gig
| (12) | ||
| (0) | ||
| (0) | ||
| (0) | ||
| (0) |
Rating Breakdown
- Seller communication level
- Quality of delivery
- Value of delivery
Sort By
Most relevant
T 
thomas_butler
United Kingdom
Thank you for your amazing support, the website is great! Even though I had some issues with deploying it to my host, he helped me a lot and we managed to sort it out in the end so I'm very happy for that.
$400-$600
Price
3 weeks
Duration
Helpful?C 
captainwilo
Repeat Client
United Kingdom
Abdul Ghaffar delivered exceptional work as always as we continue on this journey together to get my project completed.
$600-$800
Price
5 weeks
Duration
Helpful?D 
dan797
Repeat Client
United Kingdom
Abdul has been brilliant, the best communication I’ve received on Fivver. Has been very patient and tenacious to ensure he delivers the clients vision. I’m looking forward to continuing our work together.
$200-$400
Price
2 weeks
Duration
A 
Seller's Response
Helpful?J johng18261018
Repeat Client
United States
Very good communication skills and knowledgeable!
$400-$600
Price
3 weeks
Duration
Helpful?S shabeer_fokeera
Mauritius
It has been a great Experience to work with Abdul, was very easy to communicate with him and it was very quick response everytime. Abdul and his Team did and exceptional job for me and the final product was exactly what i was expecting. Thank you very much and definitely recommend this professional team to anyone.
$400-$600
Price
4 weeks
Duration
Helpful?
Reviews
12 reviews for this Gig
| (12) | ||
| (0) | ||
| (0) | ||
| (0) | ||
| (0) |
Rating Breakdown
- Seller communication level
- Quality of delivery
- Value of delivery
Sort By
Most relevant
T thomas_butler
United Kingdom
Thank you for your amazing support, the website is great! Even though I had some issues with deploying it to my host, he helped me a lot and we managed to sort it out in the end so I'm very happy for that.
$400-$600
Price
3 weeks
Duration
Helpful?C captainwilo
Repeat Client
United Kingdom
Abdul Ghaffar delivered exceptional work as always as we continue on this journey together to get my project completed.
$600-$800
Price
5 weeks
Duration
Helpful?D dan797
Repeat Client
United Kingdom
Abdul has been brilliant, the best communication I’ve received on Fivver. Has been very patient and tenacious to ensure he delivers the clients vision. I’m looking forward to continuing our work together.
$200-$400
Price
2 weeks
Duration
A Seller's Response
Helpful?J johng18261018
Repeat Client
United States
Very good communication skills and knowledgeable!
$400-$600
Price
3 weeks
Duration
Helpful?S shabeer_fokeera
Mauritius
It has been a great Experience to work with Abdul, was very easy to communicate with him and it was very quick response everytime. Abdul and his Team did and exceptional job for me and the final product was exactly what i was expecting. Thank you very much and definitely recommend this professional team to anyone.
$400-$600
Price
4 weeks
Duration
Helpful?
