Huzaifa Tahir

Summary

Huzaifa Tahir is an AI Engineer from Lahore, Pakistan, with 3+ years building production agentic AI: LangGraph and CrewAI multi-agent systems, MCP servers and RAG pipelines. He is Lead AI Engineer at SyntaxBrain and previously worked at Musketeers Tech, Fabtechsol and Mexa Solutions. His work includes a payroll automation system that cut monthly processing time by 90% for 800+ employees, a deep research sales agent built with CrewAI and FastAPI, and, at SyntaxBrain, a legal AI platform for a UK law firm with 15+ lawyers combining retrieval over 10M+ documents with Llama 3.1 fine-tuning, where he is lead engineer and project manager. He authored "Mastering Ensemble Techniques" and explains new AI research papers on YouTube. He is open to full-time AI Engineer roles with relocation to Germany, the Netherlands, the UK or the UAE.

Experience

Lead AI Engineer, SyntaxBrain

Now · Lahore

• Leads a legal AI platform for a UK law firm with 15+ lawyers as lead engineer and project manager: retrieval over 10M+ documents plus fine-tuning of open-source Llama 3.1 models.
• Owns architecture and delivery for agentic and RAG systems, from scoping with clients to production.

AI Engineer, Musketeers Tech

From Apr 2025 · Lahore

• Built a payroll and salary-slip automation system that cut monthly processing time by 90% for 800+ employees.
• Architected a Deep Research Sales Intelligence Agent with CrewAI and FastAPI that researches and qualifies B2B leads end to end; top-ranked among client deliverables.
• Developed custom MCP servers integrated with OpenAI, reducing agent integration overhead across projects.

AI Engineer, Fabtechsol

Oct 2024 to Apr 2025 · Lahore

• Led end-to-end integration of the B-Master multi-agent platform with CrewAI, LangChain and LangGraph.
• Fine-tuned GPT-4 Vision for car make and year detection at 74% classification accuracy, feeding automated price estimation.
• Built tax-strategy agents with the LangChain SQL Agent, OpenAI and Tavily Search to cut analyst research time.

Generative AI Engineer, Mexa Solutions

Sep 2023 to Oct 2024 · Lahore

• Built an Interview Copilot with OpenAI, Deepgram real-time speech-to-text and Groq, with sub-second response latency.
• Implemented RAG pipelines with LangChain and LlamaIndex for cybersecurity document analysis and research tools.
• Shipped a finance chatbot on Streamlit and Snowflake for natural-language queries over the data warehouse.

Associate Python Developer, FalconXoft

Dec 2022 to Aug 2023 · Remote

• Built booking logic and backend APIs for a flight reservation system on third-party flight APIs.
• Developed a Django app for real-time face-emotion recognition with CNNs.
• Wrote a Best Seller Rank scraper that informed e-commerce merchandising decisions.

Selected projects

• Payroll automation: LLM agents for validation, calculation and payslips; 90% less monthly processing time for 800+ employees.
• Legal RAG for a UK law firm: At SyntaxBrain, for a UK firm with 15+ lawyers: retrieval over 10M+ documents and Llama 3.1 fine-tuning; lead engineer and project manager.
• Deep Research Sales Agent: CrewAI and FastAPI multi-agent research that turns an account name into a sales brief.
• B-Master multi-agent platform: Specialist agents coordinated with LangGraph, CrewAI and LangChain.
• GPT-4 Vision vehicle detection: Fine-tuned GPT-4 Vision for car make and year at 74% accuracy.
• Arabic speech recognition: Whisper-Small fine-tuned for Arabic ASR with Hugging Face.

Skills

Languages

Python, SQL, R

Agentic AI

LangGraph, CrewAI, LangChain, LlamaIndex, LangSmith, MCP servers, Multi-agent systems

LLMs

OpenAI GPT-4 / GPT-4o, Anthropic Claude, Llama 3 / 3.1, Qwen 2.5, DeepSeek, Groq, Deepgram

RAG and vector DBs

Hybrid search, Re-ranking, Pinecone, pgvector, ChromaDB, FAISS

ML / DL

PyTorch, TensorFlow, Hugging Face, scikit-learn, Fine-tuning, Computer vision, NLP

Backend and cloud

FastAPI, Django / DRF, PostgreSQL, Snowflake, Docker, AWS (EC2, S3)

Tools

Git, Playwright, Streamlit, ComfyUI, Jupyter

Education and certifications

• BSc Computer Science, Superior University Lahore, 2019 to 2023
• Machine Learning Specialization, Coursera, DeepLearning.AI, 2023
• Natural Language Processing Specialization, Coursera, DeepLearning.AI, 2023

Publications

• Mastering Ensemble Techniques: The Art and Science of Smarter Machine Learning (book)
• LLM: Large Language Models, a comprehensive guide, AI in Plain English, 2024
• Understanding Seq2Seq models, AI in Plain English, 2024
• Unleashing the potential of language: introducing PaLM, AI in Plain English, 2024
• Decoding the magic: NLP tokenization and text normalization, Medium, 2024

Languages

• English: Professional working proficiency
• Urdu: Native
• German / Arabic: Not yet; open to learning