You will get API Integration | API Development | Custom API Automation & Integration
Top Rated
Project details
Need to connect your applications, websites, SaaS platforms, or third-party services?
I build secure, scalable, and reliable API integrations tailored to your business needs. Whether you need REST API development, third-party API integration, webhooks, OAuth/JWT authentication, payment gateway integration, or API automation, I deliver clean, maintainable solutions that are built to last.
I can integrate Stripe, Stripe Connect, PayPal, Twilio, Shopify, WooCommerce, HubSpot, Salesforce, Zoho CRM, QuickBooks, Xero, Microsoft Graph, Microsoft Entra ID, Google APIs, Gmail API, Google Drive, Google Calendar, Google Maps, Firebase, OpenAI, WhatsApp Business API, Slack, Discord, Zoom, DocuSign, Dropbox, OneDrive, Airtable, Notion, Mailchimp, and other custom or enterprise APIs.
Using ASP.NET Core, C#, React, Azure, AWS, SQL Server, and PostgreSQL, I focus on secure authentication, error handling, data synchronization, performance, and long-term scalability.
Whether you need a simple API connection or a complex enterprise integration, I'll deliver a solution that's reliable, well-documented, and easy to maintain. Let's build an integration that helps your business grow.
I build secure, scalable, and reliable API integrations tailored to your business needs. Whether you need REST API development, third-party API integration, webhooks, OAuth/JWT authentication, payment gateway integration, or API automation, I deliver clean, maintainable solutions that are built to last.
I can integrate Stripe, Stripe Connect, PayPal, Twilio, Shopify, WooCommerce, HubSpot, Salesforce, Zoho CRM, QuickBooks, Xero, Microsoft Graph, Microsoft Entra ID, Google APIs, Gmail API, Google Drive, Google Calendar, Google Maps, Firebase, OpenAI, WhatsApp Business API, Slack, Discord, Zoom, DocuSign, Dropbox, OneDrive, Airtable, Notion, Mailchimp, and other custom or enterprise APIs.
Using ASP.NET Core, C#, React, Azure, AWS, SQL Server, and PostgreSQL, I focus on secure authentication, error handling, data synchronization, performance, and long-term scalability.
Whether you need a simple API connection or a complex enterprise integration, I'll deliver a solution that's reliable, well-documented, and easy to maintain. Let's build an integration that helps your business grow.
Programming Languages
JavaScript, ASP.NET, C#Coding Expertise
Cross Browser & Device Compatibility, Performance Optimization, DesignWhat's included
| Service Tiers |
Starter
$65
|
Standard
$199
|
Advanced
$699
|
|---|---|---|---|
| Delivery Time | 3 days | 5 days | 7 days |
Number of Revisions | 0 | 0 | 0 |
Design Customization | - | - | - |
Content Upload | - | - | - |
Responsive Design | - | - | - |
Source Code |
Frequently asked questions
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CT
Cara T.
Jun 18, 2026
reading phonics game app
Jawad was great to work with and did an excellent job bringing my vision to life. As someone without a technical background, I appreciated his ability to guide me through the development process. He listened carefully to my ideas, provided helpful guidance throughout the project, and was always willing to answer questions and address concerns.
I would be happy to work with him again on future projects.
I would be happy to work with him again on future projects.
RD
Robert D.
Jan 7, 2026
Alien Bloom - Maintenance Plan
I've been working with RootPointers for the last 4 years and they've been great. They listen to everything you need and take a step back to think about the best approach to meet those needs. They're also some of the nicest people you'll ever work with. I cannot recommend them enough for any project.
JF
Johnny F.
Oct 21, 2025
Experienced .NET Core & Mobile Application Developer Needed
AL
Andrew L.
Feb 16, 2025
API Expert Needed for Cross-Platform Authentication Projects and Web Developement
Jawad was amazing to work with. Him and his team are great at resolving issues at a fast pace and understood the challenges I faced. They worked with me to to overcome a timeline that I did not think could be met and did so with ease. I highly recommend.
TO
Tayo O.
Apr 30, 2024
Full stack Developer for Medical Web based project
Jawad has worked with me on my healthcare project, which involved both Flutter and ASP.NET stacks. He is a true master of his craft. I would highly recommend him to everyone for his professionalism and expertise. I loved working with him and will surely engage him for future projects. He is consistently available and supportive.
About Jawad
Full Stack Developer | Backend, ASP.NET Developer, Flutter | AI Apps
100%
Job Success
Lahore, Pakistan - 7:12 am local time
I have been doing this for over 10 years, mostly for startups, SaaS companies, and businesses that have outgrown their first version of a product. Some hire me as a backend developer to build something new. Others have an app that works but has gotten slow, messy, or hard to change, and they need someone to take it seriously.
I have shipped across a lot of industries: SaaS, fintech, healthcare, payroll, property management, booking platforms, field service, and enterprise software. That range matters more than it sounds. Payment logic, compliance, real-time data, and messy third-party integrations show up everywhere, and having solved them in one industry makes me faster in the next.
Healthcare is one area I know deeply. I'm HIPAA and Privacy Law certified through the University of Pennsylvania and have built EHR and EMR systems, patient portals, EVV apps, and telehealth features, where security and compliance have to be designed in from day one, not bolted on at the end. I bring that same discipline to fintech and any product handling sensitive data.
How I Work :
Before I write code, I want to understand your business and your users. That usually means I ask a lot of questions. It also means I'll tell you honestly when something isn't worth building yet. I'd rather talk you out of a feature than watch you pay for something that won't move your business forward. That habit is why clients stay. One trusted me for over 1,700 hours, and plenty have come back for a second, third, and fourth project.
The thing I care about most is that the software still makes sense a year later, when a different developer opens the code and needs to change something without spending a week figuring out how it all fits together.
What I Do :
Backend development: ASP.NET Core, .NET, C#, REST APIs, microservices, Entity Framework Core, JWT and OAuth, SignalR, third-party integrations
Frontend: React, TypeScript, JavaScript, responsive web apps
Mobile: Flutter for iOS and Android
Cloud: Azure App Services, Azure Functions, Azure SQL, Docker, CI/CD
Databases: SQL Server, PostgreSQL, MySQL
AI: OpenAI and Claude integrations, AI assistants, document processing, workflow automation, chatbots
A Few Things I Have Built :
A multi-tenant SaaS platform on ASP.NET Core and Azure, from empty repo to paying users, including auth, billing integration, and an admin dashboard.
A Flutter app for iOS and Android backed by a .NET Core API and PostgreSQL, with offline support and real-time sync so field staff could work without a signal and catch up later.
A legacy .NET application that had become slow and fragile. I profiled the bottlenecks, restructured the database queries, and cut key page loads from several seconds to well under one, without a full rewrite.
An AI document-processing workflow using the OpenAI and Claude APIs that pulled structured data out of messy PDFs and saved the team hours of manual entry every week.
Different stacks, same approach: understand the problem, keep the code clean, and build something the next developer can actually maintain.
How Working With Me Goes :
I communicate in plain language, not jargon. I give you honest timelines and flag risks early instead of at the deadline. I show progress often so you're never guessing where things stand. If something is going to take longer or cost more than expected, you hear it from me before it happens, not after.
What Clients Usually Hire Me For :
Full stack development for a new SaaS platform or MVP
Backend development on an existing ASP.NET Core app
A secure REST API built in ASP.NET Core
A React web app connected to a solid backend
A Flutter mobile app with secure APIs and cloud infrastructure
Modernizing a legacy .NET application
Fixing a slow app or a slow database
Moving to Azure
Adding AI to a product without rebuilding it from scratch
Availability :
I take on both hourly and fixed-price projects, and I'm comfortable working solo or plugging into an existing team. I work in overlapping hours with US and European clients, so you get steady communication and quick replies during your day, not answers that land overnight.
If you just need someone to type code, there are thousands of developers here. If you want a full stack developer who thinks about architecture, cost, and where your product is headed before touching the keyboard, we'll get along. Tell me what you're building, and I'll tell you honestly how I can help. If it's not something I'm the right fit for, I'll tell you that too.
Steps for completing your project
After purchasing the project, send requirements so Jawad can start the project.
Delivery time starts when Jawad receives requirements from you.
Jawad works on your project following the steps below.
Revisions may occur after the delivery date.
Discovery & Planning
Will start with a quick discussion to understand your requirements, and goals. I'll recommend the package that best fits your needs. Once everything is confirmed, I'll begin development and keep you updated throughout the project until delivery.