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You will get Robust Custom API Solutions | Custom API Development and Integration
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Project details
Are you seeking a skilled developer who can weave together applications and systems like they were always meant to be? Look no further!
I'm an expert in custom API development and integration, capable of connecting disparate systems, and ensuring they work harmoniously to provide feature-rich experiences.
Here's what I bring to the table:
• Custom API Development
• API Integration
• REST and SOAP APIs
• API Documentation
• Real-time Data Access
• Secure Authentication
• Performance Optimization
• Error Handling and Troubleshooting
• Maintenance and Support
So, shall we connect and make your systems more efficient and integrated? Send me a message!
I'm an expert in custom API development and integration, capable of connecting disparate systems, and ensuring they work harmoniously to provide feature-rich experiences.
Here's what I bring to the table:
• Custom API Development
• API Integration
• REST and SOAP APIs
• API Documentation
• Real-time Data Access
• Secure Authentication
• Performance Optimization
• Error Handling and Troubleshooting
• Maintenance and Support
So, shall we connect and make your systems more efficient and integrated? Send me a message!
Web Programming Project
Blockchain Development, Browser Extension, API Development, API Integration, Data DashboardProgramming Languages
PHP, Python, JavaCoding Expertise
Cross Browser & Device Compatibility, Performance Optimization, DesignWhat's included
| Service Tiers |
Starter
$999
|
Standard
$3,800
|
Advanced
$5,000
|
|---|---|---|---|
| Delivery Time | 15 days | 30 days | 50 days |
Number of Revisions | 1 | 1 | 2 |
Source Code | - | - |
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Jayaraj M.
Aug 24, 2025
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Chaudry is a real pleasure to work with. He would be a prefect addition to a high performing team . Will work with him again the future
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Great freelancer. Would definitely hire again.
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About Chaudhry Haras
AI Product & Systems Architect | Agents, Claude, MCP, RAG, Automation
100%
Job Success
Lahore, Pakistan - 1:52 am local time
The question I usually help clients answer is not simply, “Where can we add AI?” It is, “What should AI own, what should remain deterministic, what data and tools should it access, and how do we make the whole system reliable enough to use in the real business?”
From AI SaaS products and RAG knowledge systems to MCP integrations, business automation, and AI revenue systems, I take projects from early architecture through development, deployment, and continuous improvement.
Most AI projects do not fail because the model is weak. They fail because the surrounding system is poorly designed: unreliable retrieval, vague tool permissions, fragile automations, missing evaluations, uncontrolled costs, or no clear handoff between AI and people.
I design and build that complete system.
What I Build
• AI SaaS products, MVPs, and intelligent features for existing platforms
• AI agents that research, reason, use tools, update systems, and escalate safely
• Multi-agent workflows for operations, support, sales, research, and reporting
• RAG and enterprise knowledge systems with ingestion, hybrid retrieval, reranking, citations, and permission-aware access
• Custom MCP servers connecting Claude, ChatGPT, and other AI applications to business tools and internal data
• AI copilots, document intelligence systems, voice agents, analytics assistants, and research platforms
• n8n, Make, API, and custom-code automation across CRMs, ERPs, email, databases, documents, and internal applications
• AI discovery and revenue systems, including GEO, AEO, lead qualification, CRM routing, outreach, and content operations
How I Approach AI Systems
I first determine what should be handled by AI, what should remain deterministic, and where human approval is essential.
From there, I design the data flow, retrieval strategy, tools, permissions, state management, fallbacks, evaluations, observability, and deployment architecture.
I do not introduce multiple agents, vector databases, or complicated frameworks simply because they are fashionable. Every technical decision must improve reliability, maintainability, speed, user experience, or commercial value.
Hands-On AI Product Development
I work directly across product strategy, system architecture, coding, APIs, integrations, deployment, and iteration.
I use Claude Code, Codex, and AI-native development workflows daily to move quickly from an idea to a working product without sacrificing architecture or maintainability.
My current stack includes OpenAI, Anthropic and Claude, Python, TypeScript, Node.js, React, Next.js, n8n, Make, PostgreSQL, vector databases, REST and GraphQL APIs, Docker, cloud infrastructure, and modern AI development frameworks.
I choose the stack around the product and business requirements, not the other way around.
Experience You Can Build On
Over the last 10+ years, I have delivered more than 200 projects across software, AI, automation, marketing technology, cloud systems, and digital products.
My experience includes work with Fortune 500 companies, VC-backed startups, established global brands, and founders building products from the ground up.
I also lead MetaSys, a 40+ person technology and growth team, while remaining directly involved in AI architecture, product development, and critical implementation decisions.
Clients work directly with me. When a larger product requires parallel development, design, data, DevOps, or quality assurance capacity, I can bring that structure without forcing the client to coordinate multiple freelancers.
My Upwork track record includes 100% Job Success, long-term client relationships, and projects spanning strategy, implementation, and ongoing optimization.
I Am a Strong Fit When
• You are building an AI product and need more than a basic model wrapper
• Your agent or RAG system works in a demo but is unreliable in production
• You need AI securely connected to real business data and software
• You want to automate a valuable workflow without creating a fragile collection of tools
• You need an experienced technical partner who understands both the system and the business outcome
• You need to move quickly, but still want a product that can be maintained and expanded
Tell me what the product or workflow needs to accomplish, what systems and data it must access, and where the project currently stands.
I will help turn it into a clear architecture and a production-ready AI system.
Steps for completing your project
After purchasing the project, send requirements so Chaudhry Haras can start the project.
Delivery time starts when Chaudhry Haras receives requirements from you.
Chaudhry Haras works on your project following the steps below.
Revisions may occur after the delivery date.
API Specification
We will define the API’s purpose, functionalities, and integration requirements.
API Development
I will develop the API, ensuring it meets the desired functionality and security standards.