You will get API Development & Integration Expert | REST, GraphQL & WebSockets
Project details
Build secure, reliable, and well-documented APIs for your web, mobile, or cloud apps. I specialize in RESTful, GraphQL, and real-time WebSocket APIs that are scalable, optimized, and easy to integrate across platforms.
As an experienced API engineer, I design robust endpoint architectures with authentication, version control, and automated testing. My APIs are developer-friendly, documented with OpenAPI/Swagger, and tested using Postman for long-term reliability.
Expertise:
• RESTful APIs with FastAPI, Express/Fastify, or Django REST Framework
• GraphQL with Apollo Server or Hasura
• Real-time WebSockets (Socket.IO) for chat or notifications
• JWT, OAuth2, or API key authentication
• Pagination, filtering, versioning, validation
• Caching, idempotency, and performance tuning
Why Choose Me:
✅ Secure, scalable, and well-documented APIs
✅ Seamless integration across web, mobile, and cloud
✅ Built-in testing, error handling, and versioning
From integrating third-party APIs to full backend systems, I deliver reliable, future-ready API solutions.
As an experienced API engineer, I design robust endpoint architectures with authentication, version control, and automated testing. My APIs are developer-friendly, documented with OpenAPI/Swagger, and tested using Postman for long-term reliability.
Expertise:
• RESTful APIs with FastAPI, Express/Fastify, or Django REST Framework
• GraphQL with Apollo Server or Hasura
• Real-time WebSockets (Socket.IO) for chat or notifications
• JWT, OAuth2, or API key authentication
• Pagination, filtering, versioning, validation
• Caching, idempotency, and performance tuning
Why Choose Me:
✅ Secure, scalable, and well-documented APIs
✅ Seamless integration across web, mobile, and cloud
✅ Built-in testing, error handling, and versioning
From integrating third-party APIs to full backend systems, I deliver reliable, future-ready API solutions.
Programming Languages
PHP, Python, JavaCoding Expertise
Performance Optimization, SecurityWhat's included
| Service Tiers |
Starter
$150
|
Standard
$400
|
Advanced
$850
|
|---|---|---|---|
| Delivery Time | 3 days | 7 days | 15 days |
Number of Revisions | 2 | 3 | 4 |
Design Customization | - | - | - |
Content Upload | - | - | - |
Responsive Design | - | - | - |
Source Code |
Frequently asked questions
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AH
Ashley H.
May 15, 2026
DD Ergo Training Module
Muhammad and his team are excellent. We worked through a tedious project together and they were able to convert quickly on every client ask. Will definitely work with him again!
AH
Ashley H.
May 13, 2026
Air Methods Ergo Training Modules
Thoroughly enjoyed working with Muhammad and his team. They were able to convert on every client request and created a high quality product. Will definitely hire again.
AH
Ashley H.
Feb 12, 2026
Ergo AI Form Overlay Video
Muhammad is so great to work with! He is fast in response and delivers excellent work and projects!
JH
John H.
Nov 19, 2025
Salesforce Commerce Cloud Store Launch Assistance
Muhammad and the entire Innovadel team were amazing. They are true experts once it comes to Salesforce, & Commerce Cloud.
Highly recommend! A++
Highly recommend! A++
AH
Ashley H.
Aug 7, 2025
Design an Ergonomic LMS-Friendly Training Module
Haroon was so helpful, created an excellent training module for us and incredibly fast!
About Muhammad Haroon Saeed
Salesforce Consultant | AI-Powered CRM, Shopify & Fulfillment Integrat
81%
Job Success
London, United Kingdom - 5:32 pm local time
I specialize in connecting Salesforce with modern AI capabilities and e-commerce platforms like Shopify to create fully integrated, automated business systems. My focus is not just development, but delivering end-to-end solutions that remove manual work and improve business performance.
I work with companies that need scalable CRM architecture, intelligent automation, and seamless integration across sales, service, marketing, and commerce systems.
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What I Build
**Salesforce Solutions**
• Sales Cloud & Service Cloud automation
• Commerce Cloud (B2C / B2B) implementations
• Revenue Cloud (CPQ & Billing)
• Custom Apex, Lightning Web Components (LWC), and enterprise workflows
• End-to-end CRM architecture and optimization
**AI Automation & Agentic Systems**
• AI-powered CRM assistants and copilots
• Autonomous AI agents for sales and support workflows
• Retrieval-Augmented Generation (RAG) systems for enterprise knowledge
• Multi-step AI workflow orchestration across business tools
**E-commerce & Integration Systems**
• Shopify integrations with Salesforce
• Multi-system CRM and e-commerce synchronization
• API integrations with ERP, WMS, and third-party platforms
• White-label dashboards and internal operational tools
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Technical Expertise
Salesforce (Sales Cloud, Service Cloud, Commerce Cloud, Marketing Cloud, Data Cloud, CPQ), Apex, LWC, MuleSoft, REST/SOAP APIs, Node.js, React, Python, OpenAI, vector databases, AWS, Docker, and cloud-native architecture.
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Why Clients Work With Me
• 14+ years of enterprise software engineering experience
• Strong focus on business outcomes and automation ROI
• Experience building scalable, production-grade architectures
• End-to-end delivery from system design to deployment
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If you're looking to connect Salesforce, AI, and e-commerce into one automated and scalable system, I can help design and implement it end to end.
Salesforce Developer, Salesforce Commerce Cloud, SFCC, Headless Ecommerce, Salesforce Sales Cloud, Salesforce Service Cloud, Salesforce Marketing Cloud, Salesforce CPQ, Data Cloud, MuleSoft, Apex Developer, LWC Developer, AI Automation, AI Engineer, AI Developer, OpenAI, GPT-4, Claude AI, Gemini AI, LLM, RAG, Retrieval Augmented Generation, AI Agents, AI Chatbot, Conversational AI, Machine Learning, Generative AI, Prompt Engineering, LangChain, CrewAI, Semantic Search, Vector Database, Pinecone, FAISS, Qdrant, AI SaaS, SaaS Development, Claude Agent, AI Agent Development, Autonomous AI Agents, Multi-Agent GoHighLevel, GHL, Funnel Automation, Sales Funnels, High-level Automation, CRM Integration, Zapier, Make, n8n, Workflow Orchestration, Database Design, PostgreSQL, MySQL, MongoDB, Node.js, React.js, Next.js, Python, TypeScript, JavaScript, SaaS Automation, White Label Solutions, Enterprise AI
Steps for completing your project
After purchasing the project, send requirements so Muhammad Haroon Saeed can start the project.
Delivery time starts when Muhammad Haroon Saeed receives requirements from you.
Muhammad Haroon Saeed works on your project following the steps below.
Revisions may occur after the delivery date.
Requirement Gathering
Review your project goals, data flow, and integration points to define a clear API structure and architecture.
API Design & Documentation
Create endpoint structure, data models, and authentication logic. Prepare OpenAPI/Swagger documentation for your approval.