I am a Machine Learning Engineer specializing in LLMs, RAG systems, and voice automation. I have built AI agents, fine-tuned models, and deployed scalable Gen AI applications using LangChain, Crew AI, and FastAPI. I am passionate about creating intelligent, cost-effective AI systems that drive measurable business impact and enjoy collaborating with cross-functional teams to turn ideas into deployed solutions.

Hafiz Muhammad Usama Saleem

I am a Machine Learning Engineer specializing in LLMs, RAG systems, and voice automation. I have built AI agents, fine-tuned models, and deployed scalable Gen AI applications using LangChain, Crew AI, and FastAPI. I am passionate about creating intelligent, cost-effective AI systems that drive measurable business impact and enjoy collaborating with cross-functional teams to turn ideas into deployed solutions.

Available to hire

I am a Machine Learning Engineer specializing in LLMs, RAG systems, and voice automation. I have built AI agents, fine-tuned models, and deployed scalable Gen AI applications using LangChain, Crew AI, and FastAPI.

I am passionate about creating intelligent, cost-effective AI systems that drive measurable business impact and enjoy collaborating with cross-functional teams to turn ideas into deployed solutions.

See more

Experience Level

Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Intermediate
Intermediate
Intermediate
See more

Language

English
Fluent
Urdu
Advanced

Work Experience

AI Engineer at Intersys Ltd
August 1, 2025 - Present
Built an AI-powered voice bot using Twilio, STT, TTS, and LLMs (OpenAI & open-source) integrated directly with the company’s POS system. Enabled real-time order management where customers could place, modify, and track orders via phone, with the bot updating the POS automatically. Delivered human-like conversations that replaced full-time call agents and significantly improved customer experience at a fraction of the cost. Scaled on AWS to ensure 24/7 reliability, high availability, and production-grade performance. Drove cost savings by automating operations, eliminating the need for dedicated call staff, and streamlining order workflows.
Machine Learning Engineer at PixelEdge Solutions (Pvt.) Ltd
August 1, 2025 - October 9, 2025
FinTech product (Data Automation & ML Integration): Built and deployed ML algorithms to automate data extraction workflows, reducing manual effort and generating structured Excel reports from raw financial inputs. Applied advanced pre-processing, feature engineering, and exploratory data analysis on financial datasets to support KPI prediction and decision-making. Sustainability / Environment-Focused Product (Intelligent Document Assistant): Developed a RAG-based conversational solution using LangChain to answer predefined user queries by retrieving insights from internal sustainability and policy documents. Integrated ChatGPT API to enhance natural language understanding and provide accurate, human-like responses grounded in document context. Designed and deployed robust REST APIs using Flask and FastAPI to serve ML models and conversational agents across internal tools.
Trainer / Data Scientist at Tech Zone
October 1, 2023 - October 9, 2025
Performed data preprocessing, cleaning, and feature engineering on real-world datasets to prepare for analysis and modeling. Conducted exploratory data analysis (EDA) and visualized insights using tools like Matplotlib, Seaborn, and Plotly. Collaborated on cross-functional projects to apply machine learning algorithms and evaluate model performance using industry-standard metrics.
AI Engineer at InterSys Ltd
August 1, 2025 - Present
Built an AI-powered Voice Bot using Twilio, STT, TTS, and LLMs (OpenAI & open-source), integrated directly with the company’s POS system. Enabled real-time order management customers could place, modify, and track orders via phone, with the bot updating the POS automatically. Delivered human-like conversations that replaced full-time call agents, drastically improving customer experience at a fraction of the cost. Scaled on AWS to ensure 24/7 reliability, high availability, and production-grade performance. Drove significant cost savings by automating operations, eliminating the need for dedicated call staff, and streamlining order workflows.
Machine Learning Engineer at PixelEdge Solutions (Pvt.) Limited
August 1, 2025 - October 9, 2025
Built and deployed ML algorithms to automate data extraction workflows, significantly reducing manual effort and generating structured Excel reports from raw financial inputs. Applied advanced pre-processing, feature engineering, and exploratory data analysis on financial data sets to support KPI prediction and decision-making.
Trainee Data Scientist at Techma Zone
October 1, 2023 - October 9, 2025
Performed data pre-processing, cleaning, and feature engineering on real-world data sets to prepare for analysis and modeling. Conducted exploratory data analysis (EDA) and visualized insights using tools like Matplotlib, Seaborn, and Plotly. Collaborated on cross-functional projects to apply machine learning algorithms and evaluate model performance using industry-standard metrics.
Machine Learning Engineer at PixelEdge Solutions Pvt. Limited
October 1, 2023 - November 13, 2025
Voice AI & LLM Automation: Built an AI Voice Assistant using Twilio, STT, TTS, and LLMs (OpenAI + open-source) to automate customer interactions. Deployed on AWS with FastAPI, ensuring real-time performance, scalability, and high availability. Delivered human-like conversations, reducing dependency on support agents and improving response efficiency. Led modular AI workflows and RAG-based components, integrating with REST APIs for scalable enterprise usage.

Education

M Sc in Data Science at FAST NUCES
January 11, 2030 - January 1, 2025
Postgraduate Diploma in Data Science and Artificial Intelligence at NED University
January 11, 2030 - January 1, 2024
Bachelor of Engineering in Electrical at NED University
January 11, 2030 - January 1, 2020
M Sc in Data Science at FAST NUCES
January 11, 2030 - January 1, 2025
Postgraduate Diploma in Data Science and Artificial Intelligence at NED University
January 11, 2030 - January 1, 2024
Bachelor of Engineering in Electrical at NED University
January 11, 2030 - January 1, 2020
MSc in Data Science at FAST NUCES
January 1, 2024 - November 13, 2025
Postgraduate Diploma in Data Science and Artificial Intelligence at NED University
January 11, 2030 - January 1, 2024
Bachelor of Engineering in Electrical at NED University
January 11, 2030 - January 1, 2020
MSc in Data Science at FAST NUCES
January 11, 2030 - November 13, 2025
Postgraduate Diploma in Data Science and Artificial Intelligence at NED University
January 11, 2030 - January 1, 2024
Bachelor of Engineering in Electrical at NED University
January 11, 2030 - January 1, 2020

Qualifications

Generative AI with LLMs
January 11, 2030 - October 9, 2025
Machine Learning & Data Science Bootcamp
January 11, 2030 - October 9, 2025
100 Days of Code: The Complete Python Pro Bootcamp
January 11, 2030 - October 9, 2025
Mathematics for Machine Learning and Data Science Specialization
January 11, 2030 - October 9, 2025
Generative AI with LLMs
January 11, 2030 - October 9, 2025
Machine Learning & Data Science Bootcamp
January 11, 2030 - October 9, 2025
100 Days of Code: The Complete Python Pro Bootcamp
January 11, 2030 - October 9, 2025
Mathematics for Machine Learning and Data Science Specialization
January 11, 2030 - October 9, 2025
Generative AI with LLMs
January 11, 2030 - November 13, 2025
Machine Learning & Data Science Bootcamp
January 11, 2030 - November 13, 2025
100 Days of Code: The Complete Python Pro Bootcamp
January 11, 2030 - November 13, 2025
Mathematics for Machine Learning and Data Science Specialization
January 11, 2030 - November 13, 2025
Generative AI with LLMs
January 11, 2030 - November 13, 2025
Machine Learning & Data Science Bootcamp
January 11, 2030 - November 13, 2025
100 Days of Code: The Complete Python Pro Bootcamp
January 11, 2030 - November 13, 2025
Mathematics for Machine Learning and Data Science Specialization
January 11, 2030 - November 13, 2025

Industry Experience

Software & Internet, Media & Entertainment, Professional Services, Computers & Electronics, Education, Other