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Hassan Zubair

Hassan Zubair

Lahore, Pakistan · UTC+5

100% Job SuccessTop Rated PlusActive now
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Python Backend Architect & AI Engineer

$25–$37/hr

I'm a Python backend architect and AI engineer with 8+ years of shipping production software for founders, CTOs, IT managers and agencies, from SMB MVPs to enterprise platforms.

I design the architecture first (data model, boundaries, failure modes), then build with Django, FastAPI or Flask on the backend, React and Next.js on the front, and an AI layer that actually earns its place: RAG, LLM features, fine-tuning and multi-step AI agents with Claude and OpenAI.

Whether you need to build something new, scale what already works, or rescue a stalled project, you get senior ownership, clear communication and up to 6 hours of overlap with US time zones.

Portfolio

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Skills

  • Python
  • Django
  • FastAPI
  • Flask
  • TypeScript
  • React
  • Next.js
  • PostgreSQL
  • RAG
  • LLM
  • Fine-tuning
  • Generative AI
  • Claude
  • OpenAI
  • AI Agents
  • LangGraph
  • API Integration
  • Automation
  • AWS
  • Docker
  • Celery
  • Redis

Work history & client reviews

  • CTO · FinanceFlow

    5.0 · Michael Chen

    Hassan transformed our legacy system into a modern AI-powered platform. His expertise in Python and cloud architecture saved us months of development time. Highly recommend for any complex backend work.

  • Founder & CEO · HealthTech Solutions

    5.0 · Sarah Williams

    Working with Hassan was a game-changer for our startup. He built our entire MVP in record time using FastAPI and React. His understanding of both frontend and backend is exceptional.

  • Director of Engineering · DataScale

    5.0 · David Kumar

    Hassan's AI integration expertise helped us automate 60% of our manual processes. His work with LangChain and OpenAI APIs was nothing short of brilliant. A true professional.

  • VP of Technology · LogiTrack

    5.0 · Emily Rodriguez

    We needed someone who could handle AWS at scale. Hassan not only delivered but also optimized our infrastructure costs by 40%. His cloud-native approach is world-class.

  • Co-Founder · TeamSync

    5.0 · James Mitchell

    Hassan built our real-time collaboration platform handling 10K+ concurrent users. His expertise in WebRTC and Redis made it possible. Couldn't have asked for a better technical partner.

  • CEO · ShopWave Commerce

    5.0 · Lisa Thompson

    From database design to API development, Hassan delivered a robust e-commerce backend that handles millions in transactions. His PostgreSQL and Django skills are top-tier.

Capabilities

What I build, scale and fix

Architecture first, then code. Python backends, TypeScript products, and AI systems with evals, guardrails and cost control.

All services

Python

Python Backend Architecture

Django, Flask and FastAPI backends designed for scale, security and long-term maintainability.

  • Django
  • Flask
  • FastAPI

TypeScript

TypeScript Product Engineering

React and Next.js front-ends that are fast, typed end-to-end and pleasant to extend.

  • TypeScript
  • React
  • Next.js

AI

Applied AI, RAG & LLM Systems

RAG, LLM integration, fine-tuning and Generative AI, with Claude, OpenAI and open models.

  • RAG
  • LLMs
  • Fine-tuning
  • Gen AI
  • Claude

Agents

AI Agents Orchestration

Multi-step, tool-using AI agents that act inside your systems, reliably and observably.

  • Multi-agent
  • Tool calling
  • MCP

Integrations

Third-Party API Integration

Payments, CRMs, ERPs and SaaS tools connected cleanly, with webhooks, retries and sync.

  • REST
  • Webhooks
  • OAuth

Automation

AI-Native Automation

Replace manual, repetitive work with AI-native pipelines that read, decide and act.

  • Pipelines
  • Document AI
  • Scheduling

How we work together

A transparent path from idea to delivery

Share your scope, have a short discovery call, get a fixed-price proposal or a dedicated hourly plan, then build with regular demos.

01

Share your scope

Send your idea or work scope as text, a document or a wireframe. Rough is fine. Clarity comes next.

Text · Doc · Wireframe

02

Short discovery call

A focused call to align on goals, constraints, users and what success looks like.

~30 minutes

03

Proposal or dedicated plan

A fixed-price proposal with milestones, or for long-term dedicated work, an hourly engagement.

Fixed price · $25–$37/hr

04

Architect, build & ship

Architecture plan first, then iterative delivery with regular demos and a clean, documented handover.

Demos · Docs · Handover

Fixed-price project

Well-defined scope: an MVP, a feature, an integration or a rescue.

Custom proposal

Quoted after the discovery call

  • Scope, timeline and deliverables agreed up front
  • Milestone-based payments
  • Architecture plan included
  • Demo at every milestone
  • Handover documentation
Request a proposal
Preferred for long-term

Dedicated hourly

Long-term, evolving work where a senior engineer joins your team.

$25–$37/hr

Rate depends on scope and weekly commitment

  • Priority availability and fast turnaround
  • Flexible scope that adapts to your roadmap
  • Works inside your repos, tools and rituals
  • Transparent time reports
  • Architecture guidance along the way
Discuss a dedicated engagement

FAQ

Questions clients ask first

Just your idea or work scope, a few paragraphs of text, a document or a rough wireframe is enough. We clarify everything else on a short discovery call.