You will get an AI SaaS backend with LLMs, RAG, and FastAPI
Project details
You’ll get a scalable AI backend that’s built to ship fast and grow with your product.
I design and build LLM-powered systems with RAG and FastAPI, backed by solid cloud infrastructure on AWS/Azure. The focus is simple that get you from idea to a working, production-ready system without overengineering.
Whether you're building an AI feature, internal tool, or full SaaS product, I keep things clean, efficient, and easy to scale. No unnecessary complexity, just practical solutions that work.
I move fast, communicate clearly, and build with real-world usage in mind, so you can focus on launching and iterating, not fixing infrastructure.
I design and build LLM-powered systems with RAG and FastAPI, backed by solid cloud infrastructure on AWS/Azure. The focus is simple that get you from idea to a working, production-ready system without overengineering.
Whether you're building an AI feature, internal tool, or full SaaS product, I keep things clean, efficient, and easy to scale. No unnecessary complexity, just practical solutions that work.
I move fast, communicate clearly, and build with real-world usage in mind, so you can focus on launching and iterating, not fixing infrastructure.
Programming Languages
JavaScript, PythonCoding Expertise
Performance Optimization, SecurityWhat's included
| Service Tiers |
Starter
$200
|
Standard
$500
|
Advanced
$1,200
|
|---|---|---|---|
| Delivery Time | 2 days | 5 days | 10 days |
Number of Revisions | 1 | 2 | 3 |
Number of Pages | 1 | 1 | 1 |
Design Customization | - | - | |
Content Upload | - | - | |
Responsive Design | - | - | - |
Source Code |
13 reviews
(13)
(0)
(0)
(0)
(0)
This project doesn't have any reviews.
SS
Sarah S.
Dec 2, 2025
Build Voice Recognition Language Test for Website / Google Speech-to-text / AI
I had the pleasure of working with this freelancer for several years, and I can highly recommend him. He was always reliable, supportive, and quick to respond whenever I needed something. His work was consistently high quality, and communication was smooth and professional at all times. If you’re looking for someone you can truly depend on, he’s the right choice. I would happily work with him again on future projects.
NB
Nik B.
Dec 8, 2021
Upgrading Python Code for Speech Analysis (Machine Learning-based)
Ehsan delivered fantastic work on this deep learning project and I enjoyed collaborating with him. His programming skills are top-notch. I will likely have additional jobs for Ehsan in the near future.
TW
Tali W.
Nov 17, 2021
Setting up a Resemblyzer docker for speaker diarization
AZ
Andrew Z.
Oct 11, 2021
Gaussian process short python experiment using pytorch
Ehsan is very professional. The only reason I am canceling the milestone is that the problem I asked for was not the right problem to ask. So, I am going to ask for another milestone in nearby future, so please do not affect his status negatively. He is very skillful and indeed an awesome guy!
NG
N G.
Sep 28, 2021
Debugging of code
About Ehsan
FastAPI & LLM API Specialist | Scalable AI Backends (AWS/Azure)
100%
Job Success
Lahore, Pakistan - 10:20 pm local time
If you’re dealing with:
* Slow or unreliable AI APIs
* Scaling issues under traffic
* High cloud costs
* RAG pipelines with inconsistent results
👉 I can help you stabilize, optimize, and productionize your system.
I specialize in:
* FastAPI backend development for AI applications
* LLM integrations (OpenAI, LangChain, RAG pipelines)
* API performance, concurrency, and scaling optimization
* Cloud deployments across AWS, GCP, and Azure
* Microservices, Docker, Kubernetes, and CI/CD pipelines
I’m also a Microsoft Certified DevOps Engineer, with strong experience in building scalable, production-ready cloud systems.
🧠 Recent work:
* Built and deployed RAG-based AI systems with real-time responses
* Scaled FastAPI services for high-traffic production environments
* Designed GPU-based AI inference systems
* Optimized cloud architectures to reduce cost and improve performance
🎯 What you can expect:
* Clean, production-ready code
* Systems that scale reliably under load
* Clear communication and fast turnaround
* Focus on performance, stability, and cost-efficiency
If you’re building an AI product or backend and need it to work reliably in production, feel free to reach out.
Steps for completing your project
After purchasing the project, send requirements so Ehsan can start the project.
Delivery time starts when Ehsan receives requirements from you.
Ehsan works on your project following the steps below.
Revisions may occur after the delivery date.
Requirement Analysis & Planning
I will review your requirements, architecture, and use case to define a clear implementation plan and tech stack.
Architecture Design
Design a scalable system using LLMs, RAG pipeline, FastAPI, and cloud services (AWS/Azure) based on your needs.