You will get Custom REST API Development | .NET Core C# | Any Industry or Platform
Top Rated
Top Rated
Project details
Unlock your application's potential with my development services, utilizing .NET Core, ASP.NET MVC, C#, and SQL. With over 14 years of experience, I specialize in creating scalable, efficient, and secure APIs tailored to your business needs.
Services Offered:
Custom API Development: Design and build RESTful APIs that integrate seamlessly with your systems.
Performance Optimization: Leverage the latest technologies to ensure speed and efficiency.
Secure Authentication: Implement JWT and OAuth for robust data protection.
Comprehensive Documentation: Provide detailed API specifications for easy integration.
Ongoing Support: Maintain and update your API to align with industry standards.
Recent Projects:
E-commerce Platform: Developed an API for product management and secure payments.
HR Management System: Created an API for employee data and payroll processing.
Real-time Chat Application: Designed a chat API using SignalR for instant communication.
Inventory Management System: Built an API to streamline inventory tracking.
Clients rate my work 5 stars for timely delivery and quality code. Ready to elevate your application? Contact me to discuss your API development needs!
Services Offered:
Custom API Development: Design and build RESTful APIs that integrate seamlessly with your systems.
Performance Optimization: Leverage the latest technologies to ensure speed and efficiency.
Secure Authentication: Implement JWT and OAuth for robust data protection.
Comprehensive Documentation: Provide detailed API specifications for easy integration.
Ongoing Support: Maintain and update your API to align with industry standards.
Recent Projects:
E-commerce Platform: Developed an API for product management and secure payments.
HR Management System: Created an API for employee data and payroll processing.
Real-time Chat Application: Designed a chat API using SignalR for instant communication.
Inventory Management System: Built an API to streamline inventory tracking.
Clients rate my work 5 stars for timely delivery and quality code. Ready to elevate your application? Contact me to discuss your API development needs!
Programming Languages
JavaScript, TypeScript, C#Coding Expertise
Cross Browser & Device Compatibility, Performance Optimization, SecurityWhat's included
| Service Tiers |
Starter
$500
|
Standard
$1,200
|
Advanced
$2,500
|
|---|---|---|---|
| Delivery Time | 7 days | 10 days | 14 days |
Number of Revisions | 2 | 3 | 5 |
Number of Pages | 5 | 12 | 20 |
Design Customization | - | - | - |
Content Upload | - | - | - |
Responsive Design | - | - | - |
Source Code |
Optional add-ons
You can add these on the next page.
Fast Delivery
+$100 - $400
Additional API Endpoint
(+ 1 Day)
+$100
Third-Party Integration
(+ 2 Days)
+$400
Real-Time Webhook System
(+ 2 Days)
+$350Frequently asked questions
61 reviews
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CF
Celeste F.
Jul 30, 2026
MCP Experts Needed for Beta Testing
kk
kevin k.
Oct 15, 2025
Fix stripe and make.com integration
. @nd time he has been a help to me. This time he helped me fix my payment processing issue. Even provide a teaching video
ZL
Zhewen L.
Sep 2, 2025
Participate in a 10-15 Minute Survey on Workforce Insights
SO
Shane O.
Aug 25, 2025
Next.js, Supabase , Netlify, Contentful Expert
It was a pleasure working with Muhammad. He is a very talented developer and did great work on my project. I will be working with Muhammad in the future and highly recommend him!
GB
Gregor B.
Aug 8, 2025
Frontend Developer Needed for Vue.js Features Implementation
About Muhammad Faizan
EHR/EMR & Procore Integration Expert | FHIR, RAG, MCP | .NET Node.js
100%
Job Success
Karachi, Pakistan - 2:44 am local time
Top Rated Plus | 100% Job Success | 14+ Years | 80+ Projects | $600K+ Delivered.
I eliminate manual work between your critical systems — healthcare platforms, construction tools, e-commerce channels — and deliver ROI in 2–3 months.
🏆 𝗣𝗥𝗢𝗩𝗘𝗡 𝗪𝗜𝗡𝗦
→ Construction tech:Automated Procore ↔ QuickBooks, ComputerEase bidirectional sync eliminating 23 hrs/week of manual data entry. ROI in 7 weeks. Client: "This paid for itself faster than any software we've purchased."
→ AI automation: Built MCP connector (Node.js + Puppeteer + GCP) reducing a 2–3 hour daily manual workflow to under 10 minutes for a collectibles marketplace client.
→ Rare disease research platform: Epic FHIR R4 / SMART on FHIR integration, PHI redaction, AWS S3 medical records — live at a major US research hospital serving physicians and researchers.
→ Clinical AI platform: AI-powered treatment recommendation engine with expert voting system used by oncologists and emergency medicine physicians across multiple hospital networks.
→ Healthcare staffing SaaS: Automated nurse recruitment platform — 75% less manual work, 45% better placements, zero expired licenses, 30+ hrs saved weekly across 500+ healthcare professionals.
💡 𝗪𝗛𝗔𝗧 𝗜 𝗕𝗨𝗜𝗟𝗗
🔌 𝗘𝗻𝘁𝗲𝗿𝗽𝗿𝗶𝘀𝗲 𝗜𝗻𝘁𝗲𝗴𝗿𝗮𝘁𝗶𝗼𝗻𝘀
QuickBooks Desktop SDK • QuickBooks Online API • Procore API • ComputerEase • Sage 300 CRE • Epic FHIR R4 • Cerner • athenahealth • Dentrix • Dentrix Ascend • Eaglesoft • Open Dental • Curve Dental • Stripe • Salesforce • NetSuite.
🤖 𝗔𝗜 𝗔𝘂𝘁𝗼𝗺𝗮𝘁𝗶𝗼𝗻 & 𝗔𝗴𝗲𝗻𝘁𝗶𝗰 𝗔𝗜
MCP (Model Context Protocol) servers • OpenAI GPT-4 • Claude API • LangChain • Agentic workflows • Document processing automation (70% faster) • n8n pipelines.
🕷️ 𝗪𝗲𝗯 𝗦𝗰𝗿𝗮𝗽𝗶𝗻𝗴 & 𝗕𝗿𝗼𝘄𝘀𝗲𝗿 𝗔𝘂𝘁𝗼𝗺𝗮𝘁𝗶𝗼𝗻
Puppeteer • Playwright • Headless Chrome • Price monitoring • Multi-platform inventory sync • SOCKS5 proxy support.
🏥 𝗛𝗲𝗮𝗹𝘁𝗵𝗰𝗮𝗿𝗲 (𝗛𝗜𝗣𝗔𝗔-𝗰𝗼𝗺𝗽𝗹𝗶𝗮𝗻𝘁)
EHR/EMR integrations • Epic FHIR R4 • SMART on FHIR / OAuth2 • PHI redaction • Dental practice management systems • Staffing automation: credentials, licenses, expiration alerts, certified payroll • Telemedicine • Clinical AI.
🏗️ 𝗖𝗼𝗻𝘀𝘁𝗿𝘂𝗰𝘁𝗶𝗼𝗻 𝗧𝗲𝗰𝗵
Procore API • QuickBooks Desktop/Online • ComputerEase • Sage 300 CRE bidirectional sync • Budget & change order management • GPS mobile time tracking • Subcontractor compliance (insurance, licenses, lien waivers) • Certified payroll • Offline-first field apps.
🛒 𝗘-𝗖𝗼𝗺𝗺𝗲𝗿𝗰𝗲 & 𝗠𝗮𝗿𝗸𝗲𝘁𝗽𝗹𝗮𝗰𝗲𝘀
BigCommerce • Shopify • NetSuite • Multi-channel inventory sync • Automated listing management • Price monitoring • Competitor analysis • MCP-powered marketplace automation.
💻 𝗖𝘂𝘀𝘁𝗼𝗺 𝗦𝗼𝗳𝘁𝘄𝗮𝗿𝗲 & 𝗦𝗮𝗮𝗦
Vue.js • React • Next.js • .NET Core • iOS Swift • React Native (offline-first) • Multi-tenant SaaS up to 10K+ concurrent users • 99.9% uptime • $209K+ single-contract enterprise platform delivered.
🛠️ 𝗧𝗘𝗖𝗛 𝗦𝗧𝗔𝗖𝗞
Backend: .NET Core • C# • Node.js • NestJS • Python • Django • Entity Framework
Frontend: Vue.js • React • Next.js • Angular • TypeScript • Tailwind CSS
Mobile: iOS Swift • React Native • Expo
Database: SQL Server • PostgreSQL • MySQL • MongoDB • Redis
Cloud: AWS (EC2, RDS, S3, Lambda, App Runner) • Azure • GCP • Docker • CI/CD
📈 𝗥𝗘𝗦𝗨𝗟𝗧𝗦
• 23 hrs/week saved — Procore ↔ QuickBooks automation
• 75% less manual work — healthcare staffing platform
• 2–3 hr daily workflow → under 10 min — MCP automation
• 90% fewer billing errors — EMR/practice management
• $50K+ saved quarterly — enterprise workflow automation
• 500+ healthcare professionals on a single HIPAA-compliant platform
⭐ 𝗪𝗛𝗬 𝗖𝗟𝗜𝗘𝗡𝗧𝗦 𝗖𝗛𝗢𝗢𝗦𝗘 𝗠𝗘
✓ 100% Job Success Score • Perfect 5.0 • Top Rated Plus
✓ 14+ years — I've likely solved your exact problem before
✓ ROI in 2–3 months, not years
✓ Full code ownership + documentation
✓ EST overlap | 2–3 hr response | Daily updates
💬 𝗥𝗘𝗔𝗗𝗬 𝗧𝗢 𝗦𝗧𝗔𝗥𝗧?
Message me with your systems, pain points, and timeline. I'll respond within 2–3 hours with a tailored approach and examples from similar projects.
🚀 Let's eliminate your manual work.
Steps for completing your project
After purchasing the project, send requirements so Muhammad Faizan can start the project.
Delivery time starts when Muhammad Faizan receives requirements from you.
Muhammad Faizan works on your project following the steps below.
Revisions may occur after the delivery date.
Initial Consultation
The client selects the project package and submits a detailed requirements document.
Project Planning
Create a project timeline, defining milestones and deadlines. Outline deliverables and key features.