You will get Expert API Integration & Custom API Development
Top Rated
Project details
Need to connect your application with third-party services, synchronize data between platforms, or build a custom API from scratch? I help businesses integrate systems reliably, securely, and at scale.
With 8+ years of software development experience and 500+ successful projects delivered, I specialize in API integrations that eliminate data silos, improve system communication, and create seamless user experiences.
Whether you need to integrate payment gateways, CRMs, ERP systems, eCommerce platforms, shipping providers, communication services, or custom business applications, I can help you build a robust and maintainable solution.
What I Can Help With
✅ Third-Party API Integration
✅ Custom REST API Development
✅ API Gateway Solutions
✅ Webhook Development & Event Processing
✅ Real-Time & Scheduled Data Synchronization
✅ Payment Gateway Integrations
✅ CRM & ERP Integrations
✅ Shopify, Salesforce, HubSpot & Business System Integrations
✅ API Authentication (OAuth, JWT, API Keys)
✅ API Security & Performance Optimization
✅ API Testing, Documentation & Maintenance
With 8+ years of software development experience and 500+ successful projects delivered, I specialize in API integrations that eliminate data silos, improve system communication, and create seamless user experiences.
Whether you need to integrate payment gateways, CRMs, ERP systems, eCommerce platforms, shipping providers, communication services, or custom business applications, I can help you build a robust and maintainable solution.
What I Can Help With
✅ Third-Party API Integration
✅ Custom REST API Development
✅ API Gateway Solutions
✅ Webhook Development & Event Processing
✅ Real-Time & Scheduled Data Synchronization
✅ Payment Gateway Integrations
✅ CRM & ERP Integrations
✅ Shopify, Salesforce, HubSpot & Business System Integrations
✅ API Authentication (OAuth, JWT, API Keys)
✅ API Security & Performance Optimization
✅ API Testing, Documentation & Maintenance
Programming Languages
JavaScript, Python, TypeScriptCoding Expertise
Cross Browser & Device Compatibility, Performance Optimization, DesignWhat's included
| Service Tiers |
Starter
$120
|
Standard
$350
|
Advanced
$1,200
|
|---|---|---|---|
| Delivery Time | 2 days | 6 days | 10 days |
Number of Revisions | 1 | 2 | 5 |
Number of Pages | 1 | 5 | |
Design Customization | |||
Content Upload | |||
Responsive Design | - | ||
Source Code | - | - |
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HK
Hamza K.
Jan 30, 2026
LLM API Testing Specialist Needed
Everything went smoothly from communication to delivery. Professional, reliable, and easy to collaborate with.
AN
Abrar N.
Jan 27, 2026
AI Automation Specialist Needed for Real-World Applications (langchain)
Super smooth experience from start to finish. Clear communication, strong skills, and dependable delivery — I would recommend them 100%.
AR
Ahsan R.
Jan 22, 2026
AI Development for Stock Trading
It was a smooth and professional experience overall. Clear communication, strong expertise, and reliable delivery made the collaboration easy and effective.
AN
Abrar N.
Dec 3, 2025
AI-Based Hiring and CV Sorting Specialist
Amir delivere the AI-based CV sorting task efficiently and understood the requirements clearly. Good communication and smooth overall experience.
AR
Ahsan R.
Oct 29, 2025
Pulse millstone 4,5
Amir was exceptional on the Pulse project — highly professional, quick to understand complex requirements, and delivered quality work right on time. Great communication throughout. I’d definitely recommend and hire again!
About Amir
Generative AI Engineer | LLM, RAG, AI Automation for Business Workflow
100%
Job Success
Bristol, United Kingdom - 8:45 pm local time
I design and build LLM-powered systems that automate business operations using RAG, AI agents, and custom backends. The goal is simple: reduce manual work, fit into how your team already operates, and build something people actually use day to day.
𝐖𝐡𝐚𝐭 𝐈 𝐛𝐮𝐢𝐥𝐝:
- AI automation systems for business workflows
- AI agents for support, operations, and internal tools
- RAG-based knowledge systems connected to docs, PDFs, or databases
- Chatbots that can take real actions, not just answer questions
- Backend systems for LLM-powered applications, including APIs and integrations
𝐖𝐡𝐞𝐧 𝐜𝐥𝐢𝐞𝐧𝐭𝐬 𝐮𝐬𝐮𝐚𝐥𝐥𝐲 𝐫𝐞𝐚𝐜𝐡 𝐨𝐮𝐭:
- When repetitive manual processes are slowing things down
- When internal knowledge is scattered or hard to access
- When support or operations need automation
- When they want to add real AI functionality into an existing product
- When previous AI solutions did not work in real-world usage
𝐇𝐨𝐰 𝐈 𝐚𝐩𝐩𝐫𝐨𝐚𝐜𝐡 𝐩𝐫𝐨𝐣𝐞𝐜𝐭𝐬:
I focus on building systems that work in practice, not just demos. That means designing around your actual workflows, keeping the backend clean and maintainable, and making sure everything integrates properly with your tools and data.
I also prioritize clear communication and iterative delivery. Most AI projects fail because of execution, not because the technology is lacking. My focus is making sure what we build actually works reliably once it is deployed.
𝐓𝐞𝐜𝐡 𝐬𝐭𝐚𝐜𝐤:
LLMs and AI tools include OpenAI, Claude, Gemini, and Llama
Frameworks include LangChain and LangGraph
Vector databases include Pinecone, FAISS, and Chroma
Backend development with Python, FastAPI, Flask, and Django
Infrastructure and integrations using Docker, APIs, and AWS
𝐑𝐞𝐜𝐞𝐧𝐭 𝐰𝐨𝐫𝐤
- AI agents built for workflow automation
- RAG systems connected to company knowledge bases
- NLP-based clustering and data processing systems
- Fixing and deploying dialogue systems
- Personalization systems and machine learning pipelines
If you are building something with AI, or trying to figure out the right way to approach it, feel free to message me with your use case. I can help you scope it properly and turn it into something that actually works.
𝐊𝐞𝐲𝐰𝐨𝐫𝐝𝐬
AI Engineer, LLM Engineer, Generative AI, AI Automation, AI Agents, Chatbot Development, RAG, Retrieval Augmented Generation, OpenAI API, Claude API, Gemini API, Llama, LangChain, LangGraph, Python, FastAPI, Backend Development, API Integration, Workflow Automation, NLP, Semantic Search, Vector Database, Pinecone, FAISS, ChromaDB, Knowledge Base Chatbot, PDF Chatbot, Embeddings, ML Pipeline, AI SaaS Development
Steps for completing your project
After purchasing the project, send requirements so Amir can start the project.
Delivery time starts when Amir receives requirements from you.
Amir works on your project following the steps below.
Revisions may occur after the delivery date.
Review and Analyze the Requirements
If the requirements are clear, I will get started on the project. If not, I will seek clarity before starting the development work.
Project Execution
On start of the project, I will document the workflows and provide the same to the client for review on completion