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
Shopify | AI & Ecommerce | Salesforce | White Label Fulfillment
81%
Job Success
London, United Kingdom - 10:53 pm local time
I specialise in bridging the gap between complex retail processes and modern, intelligent automation across the entire Salesforce suite. Whether you are looking to deploy headless storefronts, inject autonomous AI agents into your customer journeys, or orchestrate complex multi-cloud data flows, I architect secure, production-ready solutions tailored to enterprise workflows.
What I Build
🛒 Multi-Cloud Salesforce & Ecommerce Engineering
Salesforce Commerce Cloud (SFCC): End-to-end B2C and B2B ecommerce solutions, including headless architecture, Composable Storefronts, and PWA Kit development.
Salesforce Sales & Service Clouds: Advanced workflow automation, case management routing, custom pipeline pipelines, and productivity enhancers.
Salesforce Marketing Cloud (SFMC) & Data Cloud: Unified customer data profiles, automated multi-channel journeys, and real-time segmentation.
Salesforce Revenue Cloud (CPQ & Billing): Complex product bundling, automated pricing rules, subscription management, and revenue recognition pipelines.
Apex, LWC & Visualforce: Custom enterprise development, lightning web components, complex triggers, and robust architectural governance.
🤖 Generative AI & Agentic Workflow Engineering
Autonomous AI Agents: Multi-agent systems built on LangChain and CrewAI frameworks designed to sit directly alongside Salesforce CRM.
Custom AI Copilots: Internal assistants designed to automate data entry, draft communications, and surface insights for sales and support teams.
Retrieval-Augmented Generation (RAG): Semantic search and vector database deployment (Pinecone, FAISS, Qdrant) integrated directly with enterprise data.
Multi-Step AI Orchestration: Pipelines leveraging Model Context Protocol (MCP) servers and intelligent tool calling.
⚙️ Cross-Platform Integration & Operations Automation
Salesforce API & Connected Apps: Secure, high-throughput REST/SOAP API integrations connecting Salesforce with legacy ERPs, WMS, and custom databases.
Middleware & iPaaS Orchestration: Enterprise workflow automation using MuleSoft, n8n, Make, or Zapier.
White-Label SaaS & Custom Tools: Bespoke, automated internal operations dashboards and client-facing digital products.
Technical Expertise
Salesforce Ecosystem: Commerce Cloud (B2C/B2B), Sales Cloud, Service Cloud, Marketing Cloud, Data Cloud, CPQ, Apex, LWC, OmniStudio, MuleSoft.
AI & Machine Learning: OpenAI (GPT-4), Anthropic Claude, Gemini AI, Prompt Engineering, Agentic Frameworks, Vector Search, Semantic Retrieval.
Full-Stack & APIs: Node.js, React.js, Next.js, Python, TypeScript, RESTful APIs, GraphQL, Microservices architecture.
Cloud & Databases: AWS, Google Cloud, Azure, Docker, Kubernetes, PostgreSQL, MongoDB, MySQL.
Alternative CRMs & Automation: HubSpot, Zoho, GoHighLevel (GHL), Pipedrive, n8n, Zapier.
Why Clients Partner With Me
🇬🇧 UK-Centric Enterprise Standards: Thorough understanding of GDPR, enterprise security protocols, and UK/European market nuances.
14+ Years of Proven Industry Expertise: Deep domain knowledge in both software engineering and mid-to-enterprise level digital commerce.
Commercially Driven Architecture: Every system is designed with a strict focus on business outcomes, operational efficiency, and demonstrable ROI.
End-to-End Delivery: Capable of taking a complex multi-cloud challenge from initial technical architecture and scoping right through to deployment.
If your ecommerce infrastructure, Salesforce instance, or operational workflow requires intelligent AI integration and world-class automation, let’s connect to discuss how we can scale your systems.
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.