You will get a scalable MVP or SaaS backend with FastAPI or Django
Top Rated
Project details
𝗣𝗿𝗼𝗱𝘂𝗰𝘁𝗶𝗼𝗻 𝗥𝗲𝗮𝗱𝘆 𝗦𝗮𝗮𝗦 & 𝗠𝗩𝗣 𝗕𝗮𝗰𝗸𝗲𝗻𝗱 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗺𝗲𝗻𝘁
I'll design and develop a secure, scalable backend for your startup or SaaS product using FastAPI or Django.
If you're building an MVP and need a reliable backend that investors and users can trust, this is for you. I’ve built SaaS platforms, AI systems, automation tools and subscription based products used by real businesses.
What I Will Build For You
✔ Secure authentication (JWT / OAuth)
✔ Role-based access control
✔ REST API development
✔ PostgreSQL database design
✔ Stripe subscriptions & payments
✔ Multi-tenant SaaS architecture
✔ Dockerized setup
✔ Clean, scalable code structure
✔ Cloud-ready backend (AWS / GCP compatible)
Perfect For
• SaaS startups
• Subscription platforms
• AI SaaS products
• Internal business systems
• Founders building MVP
Why Work With Me?
✔ 100% Job Success
✔ Top Rated on Upwork
✔ 7+ years backend experience
✔ Clear communication (0–4 hour response time)
✔ Long-term client relationships
✔ Clean, maintainable architecture
I design systems that scale. Let's have a call/chat to discuss the project in detail and start our journey together.
I'll design and develop a secure, scalable backend for your startup or SaaS product using FastAPI or Django.
If you're building an MVP and need a reliable backend that investors and users can trust, this is for you. I’ve built SaaS platforms, AI systems, automation tools and subscription based products used by real businesses.
What I Will Build For You
✔ Secure authentication (JWT / OAuth)
✔ Role-based access control
✔ REST API development
✔ PostgreSQL database design
✔ Stripe subscriptions & payments
✔ Multi-tenant SaaS architecture
✔ Dockerized setup
✔ Clean, scalable code structure
✔ Cloud-ready backend (AWS / GCP compatible)
Perfect For
• SaaS startups
• Subscription platforms
• AI SaaS products
• Internal business systems
• Founders building MVP
Why Work With Me?
✔ 100% Job Success
✔ Top Rated on Upwork
✔ 7+ years backend experience
✔ Clear communication (0–4 hour response time)
✔ Long-term client relationships
✔ Clean, maintainable architecture
I design systems that scale. Let's have a call/chat to discuss the project in detail and start our journey together.
Programming Languages
JavaScript, Python, JavaCoding Expertise
Cross Browser & Device Compatibility, Performance Optimization, SecurityWhat's included
| Service Tiers |
Starter
$850
|
Standard
$1,690
|
Advanced
$3,150
|
|---|---|---|---|
| Delivery Time | 7 days | 16 days | 37 days |
Number of Revisions | 1 | 2 | 5 |
Number of Pages | 1 | ||
Design Customization | - | - | - |
Content Upload | - | - | - |
Responsive Design | - | - | - |
Source Code | - | - | - |
Frequently asked questions
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CL
Cortex AI L.
May 15, 2026
macOS Server Setup & Python App Deployment — Mac Mini M4 (Step-by-Step Playbook Provided)
Hassan is AMAZING! He and his team are so skilled and polished, it is incredible. This is the best experience I have ever had with a freelancer on any platform. They recommended and flawlessly built a much more sophisticated, higher-end, more adaptable platform and engine than I could have imagined. If you need PYTHON Dev or any of their other dev skills, you don't even need to look anywhere else! World-Class all the way, I VERY HIGHLY RECOMMEND!!
LM
Lyndsey M.
Apr 22, 2026
Senior Python Backend Engineer(AI Systems & Architecture Review)
Great freelancer
VS
Vincent S.
Jan 17, 2026
Backend Engineer (Python / FastAPI, PostgreSQL)
Hassan was extremely professional, transparent, and communicative throughout the contract. He took the time to clearly explain technical decisions, risks, and possible solutions, which made it much easier to make informed choices. His experience really shows, especially in handling complex systems and planning realistic next steps. I appreciated his honesty, structure, and willingness to take ownership. I’d be happy to work with him again and recommend him to anyone looking for a reliable technical partner.
RO
Richmond O.
Dec 31, 2025
Joolju open phase
Amazing to work with. Went above and beyond
AB
Andras B.
Nov 26, 2025
Migrating RAG prototype from local machine to server
Hassan did a great job, and delivered what we agreed in time.
About Hassan
Python AI Engineer & Backend Architect | Multi-Agent SaaS, RAG
100%
Job Success
Lahore, Pakistan - 2:44 am local time
Most AI projects stall because developers build fragile prompt wrappers that break under real-world traffic.
As a senior AI Engineer, I specialize in building robust Python backends, autonomous multi-agent architectures, and deterministic software engines designed to run reliably at scale. My AI systems are engineered for production, not demos.
Over the past eight years, I have engineered and deployed technical systems that translate directly into business value. As a Backend Developer and AI Engineer, I designed a cross-industry MVP in 2021 for the healthcare, real estate, and fintech sectors that successfully scaled into a commercial B2B SaaS platform currently generating over $7M in recurring ROI per annum, proof that strong Python-driven architecture and disciplined AI engineering deliver real outcomes.
𝗪𝗵𝗮𝘁 𝗬𝗼𝘂 𝗚𝗲𝘁 𝗪𝗵𝗲𝗻 𝗪𝗲 𝗪𝗼𝗿𝗸 𝗧𝗼𝗴𝗲𝘁𝗵𝗲𝗿
• Production AI & RAG Pipelines: As a dedicated AI Engineer, I implement advanced Retrieval-Augmented Generation (RAG) pipelines using custom chunking strategies, token optimization, prompt caching, and hybrid semantic search via OpenAI and Claude APIs. Every RAG system I build is optimized for accuracy, speed, and cost efficiency.
• Autonomous Multi-Agent Systems: Multi-step orchestration workflows built with LangChain, AutoGen, and MCP (Model Context Protocol) to handle continuous background monitoring and complex data execution, core capabilities every modern Backend Developer specializing in AI must master.
• High-Performance Backend Architecture: Fast, asynchronous REST APIs engineered with Python and FastAPI, keeping your probabilistic AI outputs strictly separated from exact financial or relational database logic. Clean Python architecture is non-negotiable at scale.
• Enterprise Infrastructure & MLOps: Containerized deployments using Docker, automated Infrastructure-as-Code (IaC) via Terraform, and continuous integration pipelines with GitHub Actions across AWS and Azure AI Foundry, built to support enterprise SaaS operations end to end.
• Full SaaS Core Frameworks: Secure relational database modeling (PostgreSQL, Supabase, SQL Server), OAuth/JWT authentication (Clerk, NextAuth), and multi-tenant subscription mechanics using Stripe, the complete SaaS stack, fully production-hardened.
𝗪𝗵𝘆 𝗜 𝗔𝗺 𝘁𝗵𝗲 𝗥𝗶𝗴𝗵𝘁 𝗙𝗶𝘁 𝗳𝗼𝗿 𝗬𝗼𝘂𝗿 𝗣𝗿𝗼𝗷𝗲𝗰𝘁
• Trench-Tested Technical Ownership: Having spent over eight years working between business clients and core development teams as both AI Engineer and Backend Developer, I don't need hand-holding. I design the database schemas, analyze response latencies, and minimize api token burn rates out of the box.
• Security & Compliance Frameworks: I understand how to handle AI data pipelines under strict operational guardrails, including HIPAA compliance and PHI data protection for healthcare SaaS software, and SOC2 readiness for fintech operations.
• Clean, Enterprise-Ready Deliverables: Every Python-engineered system I deploy features comprehensive automated testing (Unit/E2E), explicit error trapping, and structured operational runbooks so your internal engineering team can scale it smoothly.
• Full-Stack Fluency: While my core domain is AI backend engineering, optimization, and MLOps, my proficiency as a Backend Developer with React and Next.js ensures absolute alignment across your front-end asset publishing and user journey layouts , critical for polished SaaS products.
Whether your platform requires deep document intelligence with RAG and OCR pipelines, local open-source model serving via vLLM and llama.cpp, or deep third-party integrations with travel GDS, WhatsApp Business, or Meta/Google Ads APIs, as your trusted Backend Developer and senior AI Engineer, I build it to last in Python.
𝗟𝗲𝘁'𝘀 𝘀𝗲𝘁 𝘂𝗽 𝗮 𝘁𝗲𝗰𝗵𝗻𝗶𝗰𝗮𝗹 𝗮𝗹𝗶𝗴𝗻𝗺𝗲𝗻𝘁 𝗰𝗮𝗹𝗹 𝘁𝗼 𝗮𝘂𝗱𝗶𝘁 𝘆𝗼𝘂𝗿 𝗰𝘂𝗿𝗿𝗲𝗻𝘁 𝗮𝗿𝗰𝗵𝗶𝘁𝗲𝗰𝘁𝘂𝗿𝗲, 𝗶𝘀𝗼𝗹𝗮𝘁𝗲 𝘆𝗼𝘂𝗿 𝗽𝗲𝗿𝗳𝗼𝗿𝗺𝗮𝗻𝗰𝗲 𝗯𝗼𝘁𝘁𝗹𝗲𝗻𝗲𝗰𝗸𝘀, 𝗮𝗻𝗱 𝗺𝗮𝗽 𝗼𝘂𝘁 𝘁𝗵𝗲 𝗱𝗲𝗽𝗹𝗼𝘆𝗺𝗲𝗻𝘁 𝘀𝘁𝗲𝗽𝘀.
Steps for completing your project
After purchasing the project, send requirements so Hassan can start the project.
Delivery time starts when Hassan receives requirements from you.
Hassan works on your project following the steps below.
Revisions may occur after the delivery date.
Requirement Analysis
Discuss features, backend type, database, and business logic.
Architecture Design
Plan scalable SaaS/MVP backend structure.