M
Available — Remote / Full-time / Contract

Mohsan
Yaseen — AI & Backend Engineer

Python-first Full-Stack & AI Engineer

Production AI agents, multi-tenant SaaS, and intelligent automation. Shipping Python since 2020.

Gujranwala, Pakistan
mohsan.agent — zsh
/ Python/ Django/ FastAPI/ DRF/ LangChain/ LangGraph/ OpenAI/ PyTorch/ PostgreSQL/ Redis/ Celery/ Docker/ Azure/ AWS/ Twilio/ WebSockets/ React/ TypeScript/ Python/ Django/ FastAPI/ DRF/ LangChain/ LangGraph/ OpenAI/ PyTorch/ PostgreSQL/ Redis/ Celery/ Docker/ Azure/ AWS/ Twilio/ WebSockets/ React/ TypeScript
5+
Years writing Python
10M+
Records migrated
50×
Perf gain achieved
95%+
ML model accuracy
// Selected work

Things I've shipped

Multi-tenant SaaS

RDM Connect

Expert Soft Solution · 2025

Replaced a legacy ASP.NET (c. 2005) retail-merchandising platform serving 10,000+ stores, 250+ field associates, and clients like Target & Kroger.

Rebuilt in 8 months as a Django SaaS on SaaS Pegasus. 10M+ records migrated with zero data loss, 26 Django apps, 15k+ daily API requests under 200ms, DB perf improved 45%.

DjangoDRFPostgreSQLMSSQLCeleryChannelsLiteLLMAzure
AI Agent · Computer Vision

HR Matrix — AI Interview Bot

Orblogic · 2024

Full recruitment automation: resume parsing, JD-based scoring, and a live AI-presenter interview bot with anti-cheat.

Sole engineer. Built end-to-end pipeline: BarkTTS voice cloning → Wav2Lip/MuseTalk lip sync → realtime interview bot with gaze tracking and tab-lock anti-cheat.

DjangoFastAPILangChainBarkTTSWav2LipWebSockets
Custom ML · Mobile

Wound Analysis AI

Expert Soft Solution · 2025

Production-grade wound segmentation, stage classification, and clinical extraction — running on-device on mobile.

Custom UNet + EfficientNet-B4 with hybrid Dice/Focal loss reaching 95%+ accuracy. INT8-quantized for on-device inference. FastAPI inference backend.

PyTorchUNetEfficientNetONNXFastAPIOpenAI
Voice Agent · LangGraph

Hospital Calling Agent

Orblogic · 2024

Saudi hospital needed an autonomous voice agent for booking, cancellation, rescheduling, and doctor availability — not an IVR.

Fully agentic LLM with tool-calling: booking, cancellation, availability, FAQ. Twilio + OpenAI Realtime API for natural multi-turn voice.

LangGraphOpenAI RealtimeTwilioFastAPIPostgreSQL
RAG · Multi-tenant

Multi-Tenant RAG Chatbot SaaS

Orblogic · 2024

Let any business spin up an embeddable AI chatbot grounded on their own documents, with human-agent escalation.

RBAC multi-tenancy, vector-DB RAG over uploaded docs, iframe embed, tool-calling escalation to live human, voice chat. Lifted visitor-to-lead conversion by 80%.

FastAPILangChainVector DBRAGWebSockets
Backend · Performance

US Housing Platform

TecSpine · 2023

Legacy WordPress took ~10s to load 1,000 listings against 10M+ housing records. Unusable.

Rebuilt as Django + PostgreSQL with Pandas bulk ingest and Redis cache on AWS EC2. 10s → 200–300ms (~50× faster). Employee of the Month.

DjangoPostgreSQLRedisPandasAWS
// network

How it all connects

Expert Soft SolutionOrblogicTecSpineRDM ConnectHR Matrix — AI Interview BotWound Analysis AIHospital Calling AgentMulti-Tenant RAG Chatbot SaaSUS Housing Platform
hover · click to jump
// Experience

Where I've built

Mar 2025 — Present

Expert Soft Solution

Lead Backend Engineer · Gujranwala, PK
  • Architecting RDM Connect — multi-tenant SaaS on Django + PostgreSQL with dual-DB migration from legacy MSSQL.
  • Shipped Wound Analysis AI: UNet + EfficientNet-B4, INT8-quantized for mobile, 95%+ accuracy.
  • Cut Docker image 2GB → 400MB and set up horizontally-scaled Celery on Azure Container Apps.
  • Mentor 3 junior devs; cut production bugs 50% over 6 months.
Jan 2024 — Mar 2025

Orblogic

Django Backend / AI Integration Engineer · Remote
  • Built HR Matrix end-to-end: AI interview bot with BarkTTS, Wav2Lip, and gaze-tracking anti-cheat.
  • Multi-tenant RAG chatbot SaaS — +80% visitor-to-lead conversion for clients.
  • Autonomous Saudi-hospital calling agent on LangGraph + Twilio + OpenAI Realtime.
  • 20+ DRF endpoints serving 5,000+ DAU; CI/CD cut deploys by 60%.
Aug 2023 — Jan 2024

TecSpine

Associate Software Engineer · Lahore, PK
Employee of the Month
  • Rebuilt 10M+ record US housing platform: WordPress 10s → Django 200–300ms (~50× faster).
  • Built eBay scraper + reporting pipeline with anti-block proxy integration.
  • Production bug-fixing across Python and web systems.
// Stack

Tools in the constellation

Languages
PythonSQLJavaScriptTypeScriptHTML/CSS
Backend
DjangoDRFFastAPIFlaskCeleryChannelsWebSocketsREST
AI / ML
LangChainLangGraphOpenAIPyTorchUNetEfficientNetRAGVector DBBarkTTSWav2LipYOLOQuantization
Data & Infra
PostgreSQLMSSQLRedisPandasDockerAzureAWSGitHub Actions
Automation
Make.comTwilioHubSpotMonday.comAzure FunctionsWebhooksScrapyPlaywright
// Education

Foundation

B.Sc. Software Engineering

The University of Lahore
Graduated July 2023
Final-year project

Person Re-Identification web app — Transformer-based Re-ID fine-tuned on a custom dataset; React + FastAPI; multi-camera tracking with live & DVR/NVR feeds.

// Contact

Let's build something

Open to remote full-time and contract roles in AI/backend engineering. Quick to respond.