AI Engineer · Islamabad, Pakistan · Open to Work

Muhammad
Saif Ur
Rehman

I build intelligent systems like RAG pipelines, multi-agent orchestration, voice AI, and no-code automation. End-to-end. Actually ships.

$ saif --stack
→ LLMs · RAG · CrewAI · LangChain · AWS · Vapi · Retell · n8n
6+
AI Projects
4+
Certifications
3
AI Domains
Curiosity
SCROLL
01

About Me

I'm an AI Engineer and BS AI graduate from COMSATS University Islamabad, passionate about building systems that work in the real world, not just in notebooks.

My core expertise spans end-to-end AI pipelines: fine-tuning open-source LLMs, building RAG-based production systems on AWS, and orchestrating multi-agent workflows with CrewAI.

I'm currently deep into voice AI agents (Vapi & Retell) and n8n automation, integrating AI into real business workflows. The goal: make AI actually useful for people who aren't engineers.

When I'm not coding, you'll find me studying how frontier AI systems are architected and figuring out how to build the next generation of them.

RAG ArchitecturesMulti-Agent Systems Voice AI · Vapi · Retelln8n Automation LLM Fine-TuningComputer Vision AWS DeploymentCrewAI · LangChain
🏅
IBM Generative AI Engineering Professional
IBM · Professional Certificate
🤖
Introduction to Generative AI
Google · Coursera
📊
Google Data Analytics
Google · Coursera
🎓
Innoquest Cohort 1, AI Training
Innovista Rawal
💼
Microsoft Office Specialist
Excel · Word · PowerPoint
02

What I Build

🧠
RAG & LLM Systems

End-to-end retrieval-augmented generation pipelines covering document ingestion, vector indexing, LLM integration, and cloud deployment. Built to be accurate and production-ready.

LangChainPineconeOpenAIAWS
🤖
Multi-Agent AI Systems

Autonomous agent pipelines using CrewAI and LangGraph. Research, analyst, and writer agents working in concert to automate complex multi-step cognitive tasks.

CrewAILangGraphPython
🎙️
Voice AI Agents

Intelligent voice agents via Vapi and Retell for customer service, booking, and lead qualification. Natural conversations with LLM reasoning behind every response.

VapiRetell AICustom LLM
⚙️
n8n AI Automations

Visual AI workflow automation with n8n for CRM integrations, email AI, document processing, and lead nurturing, all triggered by real business events.

n8nWebhooksOpenAI API
👁️
Computer Vision

Custom CV models for detection, segmentation, and classification using YOLOv8 and PyTorch. From custom dataset training to real-time video inference.

YOLOv8PyTorchOpenCV
🔧
LLM Fine-Tuning

Adapt open-source models to your domain using LoRA/PEFT via HuggingFace. Efficient fine-tuning on custom datasets without needing a massive GPU cluster.

HuggingFaceLoRA/PEFTSageMaker
03

My Journey

2022
Started AI Engineering
COMSATS University Islamabad
Began BS in AI, diving deep into ML foundations, linear algebra, and Python from day one.
2023
First Production RAG System
End-to-End Medical Chatbot
Built and deployed a full RAG pipeline on AWS EC2 + SageMaker with Pinecone vector search. First real cloud deployment.
2024
IBM GenAI Professional Certificate
IBM · Coursera
Rigorous certification covering LLM internals, fine-tuning patterns, and production GenAI deployment best practices.
2025
AI Intern — NCAI
Medical Imaging Lab · COMSATS Islamabad
6-month internship fine-tuning LLMs, building RAG systems and conversational AI. Also worked on fine-tuning VLMs and Swin Transformers on medical imaging data.
2023
Discovered Agentic AI
CrewAI Multi-Agent Systems
Built multi-agent pipelines that research, analyze, and write autonomously. Pivoted focus toward agentic architectures.
2024
Innoquest Cohort 1 Graduate
Innovista Rawal · AI Training Program
Intensive AI bootcamp: applied ML, industry problem-solving, and shipping systems beyond academic exercises.
2025
FYP: Fluxwell
AI-Powered Lifestyle Advisor
Full-stack AI application featuring real-time posture detection with voice feedback, agentic RAG for personalized guidance with action capabilities like nutrition plans and workout generation, community blogs with reactions, and health metrics tracking with real-time anomaly alerts.
2026 →
Voice AI & n8n Automations
Vapi · Retell · n8n
Building intelligent voice agents and AI-powered business automation workflows, bridging LLMs with real-world systems. Currently shipping.
04

Projects

⭐ Featured · FYP
Fluxwell — AI Lifestyle Advisor

Full-stack AI-powered lifestyle advisor built as a Final Year Project. Features real-time posture detection with voice feedback, agentic RAG providing personalized guidance with action capabilities like nutrition plan creation and workout generation. Includes a community blog platform with reactions and health metrics tracking with real-time anomaly alerts.

React.jsFastAPIMongoDBPineconeGroqLangChainLangGraph
// key features
Real-time Posture Detection
+
Voice Feedback System
+
Agentic RAG Guidance
+
Nutrition & Workout Plans
+
Community Blogs & Reactions
+
Metrics Tracking & Anomaly Alerts
⭐ Featured Project
End-to-End Medical Chatbot

Production-deployed RAG medical chatbot on AWS. Ingests medical knowledge bases into Pinecone, retrieves context per query, and augments LLM responses for accurate, grounded medical answers. Full pipeline from HuggingFace embeddings to SageMaker endpoint.

PythonLangChainPineconeHuggingFaceAWS EC2SageMakerRAG
// system architecture
User Query Input
HuggingFace Embeddings
Pinecone Similarity Search
LangChain Context Injection
AWS SageMaker LLM Endpoint
Grounded Medical Response ✓
🤖 Multi-Agent
Market Research Crew

Multi-agent CrewAI system that autonomously validates business ideas. A researcher gathers market data, an analyst evaluates viability, and a writer produces a comprehensive investment report with zero human intervention.

PythonCrewAIOpenAIMulti-Agent
🤖 Multi-Agent
Research & Blog Writing Agent

Dual-agent CrewAI pipeline where a research agent deep-dives any topic, passing structured findings to a writing agent producing publication-quality blog posts. Clean agent handoff and task decomposition.

PythonCrewAIAgent Orchestration
🎯 Computer Vision
Pothole Image Segmentation

YOLOv8 semantic segmentation model detecting and delineating potholes in real-time video. Trained on custom dataset with production-ready inference pipeline for smart city applications.

YOLOv8PyTorchOpenCVReal-time
🔥 LLM Fine-Tuning
Open-Source Model Fine-Tuning

Parameter-efficient fine-tuning of open-source LLMs using LoRA/PEFT. Adapts foundation models to domain-specific tasks efficiently without needing a massive compute budget.

HuggingFaceLoRA/PEFTPyTorchTransformers
👁️ Computer Vision
Hand Gesture Recognition

Real-time gesture classifier recognizing multiple hand gesture classes from live camera input. Shows ML training, custom dataset pipelines, and live inference, applicable to HCI and accessibility.

PythonTensorFlowOpenCVReal-time
🚧 In Progress
AI Voice Agent (Vapi + Retell)

Intelligent voice agent for automated business interactions. Vapi/Retell for real-time voice + custom LLM backend for natural, context-aware conversations with persistent memory and tool calling.

VapiRetell AIPythonCustom LLM
→ Coming soon
🚧 In Progress
n8n AI Workflow Automations

Production n8n workflows integrating AI for automated lead nurturing with GPT, intelligent document processing, and multi-step decision pipelines triggered by CRM events. Making AI accessible to non-technical teams.

n8nOpenAI APIWebhooksCRM
→ Coming soon
05

Skills & Stack

LLMs & GenAI
LangChain / LangGraph
OpenAI SDK / API
HuggingFace Transformers
Fine-Tuning (LoRA / PEFT)
Amazon Bedrock
RAG Architecture Design
Prompt Engineering
Agents & Automation
CrewAI
n8n Workflows
Vapi Voice AI
Retell AI
Multi-Agent Orchestration
Tool Use / Function Calling
API Integration
Cloud & Infra
AWS EC2 / S3
Amazon SageMaker
Pinecone Vector DB
Qdrant / FAISS
MongoDB
Git / DVC / Git LFS
ML & Computer Vision
PyTorch
TensorFlow / Keras
Scikit-learn
YOLOv8 Segmentation
OpenCV
NLP Preprocessing
Languages & Tools
Python (Primary)
Jupyter / Colab / Kaggle
REST APIs
Pandas / NumPy
Matplotlib / Seaborn
FastAPI (basics)
Currently Learning
Advanced n8n Flows
Vapi Production Patterns
Retell Custom LLM Backend
LangGraph Stateful Agents
AI Systems Architecture
Docker / Containerization
06

Let's Build Together

Open to opportunities.

Looking for AI Engineering roles, freelance automation projects, and collaborations on agentic or voice AI. Based in Islamabad, open to remote worldwide.

Send a Message

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