About me
Hesameddin (Hesam) Khajehei
"Building and Deploying Production-Grade AI/ML Systems."
Hello! I’m Hesameddin Khajehei, a Senior Data Scientist and AI/ML Engineer. My passion is designing, prototyping, and deploying high-impact AI/ML systems that leverage LLMs, agentic AI workflows, and predictive models.
I specialize in the end-to-end AI systems lifecycle: from data preprocessing and model training to production deployment and continuous improvement. I have a strong background in machine learning and applied AI, combined with solid Python engineering skills to build robust, scalable, and reliable services.
I thrive on system-level thinking and translating cutting-edge AI research into tangible production impact. I’m experienced in building RAG pipelines, fine-tuning models, and working with modern MLOps/AI infrastructure (Docker, Kubernetes) to ensure system reliability and performance (accuracy, latency, cost).
I also specialize in bringing the power of advanced AI into business operations, creating intelligent solutions for automation, enhanced decision-making, and innovative content processing.
Resume
Senior Planning Data Analyst - Digikala
Oct 2023 – Mar 2025Machine Learning and Forecasting Models
Designed,built and deployed machine learning models to forecast key business indicators, considering factors such as inflation rate, currency exchange rates, and marketing campaigns.
- Forecasted average selling prices, sales growth, gross profit margin, and annual revenue.
- Implemented scenario-based forecasting models for better financial planning.
- Automated the budgeting process with a web-based system, optimizing financial planning.
- Engineered data pipelines to incorporate factors like inflation
Strategy, Planning, & Reporting Manager - Media Group
Aug 2022 – Oct 2023Strategic Planning and Business Intelligence
Automated core data analysis and reporting pipelines, improving operational efficiency by 20%. Developed and maintained large-scale data systems (SQL) to analyze market trends and identify growth opportunities. Engineered automated workflows to track and evaluate system performance.
Business Development & Planning - Goldiran Group
Aug 2013 – Mar 2022Sales Development, Client Management, and Supply Chain Optimization
Developed and implemented data-driven models to optimize supply-chain processes, reducing order delivery time by 10%. Automated sales reporting and client management workflows to drive efficiency. Analyzed large datasets to identify sales growth opportunities and build customer-centric solutions.
Services
AI/ML System Design
Leveraging LLMs, RAG pipelines, and agentic workflows to build production-grade intelligent systems.
MLOps & Production Deployment
Deploying, monitoring, and scaling robust AI/ML models using containers (Docker) and orchestration (Kubernetes).
Large-Scale Data Engineering
Building and maintaining scalable data pipelines for model training and inference (Python, SQL, Spark).
Intelligent Automation & Web Services
Developing full-stack applications and automated systems to drive efficiency and enhance operations.
Ready to order your project ?
Skills
Expertise in leveraging data, automation, and cutting-edge AI to drive business transformation.
I combine technical proficiency with strategic thinking, providing data-driven solutions that drive business growth and efficiency.
- AI/ML Systems & LLMs: Designing and building AI systems, including RAG pipelines, agentic workflows (LangChain, LangGraph), fine-tuning, and predictive services.
- Machine Learning & AI: Deep understanding of the ML lifecycle (Scikit-Learn, Pandas, NumPy), including deep learning, NLP, and computer vision (Image Processing).
- MLOps & AI Infrastructure: Experience with containers (Docker), orchestration (Kubernetes), and model serving (vLLM, Triton-inference-server).
- Large-Scale Data Systems: Proficient with large-scale data systems and querying (SQL, ClickHouse, Spark, Redis).
- Full-Stack & Automation: Strong engineering skills in Python; experience building scalable web applications (ASP.NET, C#) and automation systems (Selenium).
- Experimentation & Evaluation: Practical experience in A/B testing, statistical evaluation, and monitoring system performance (RAGAS, TrueLens).
Languages Skills
English (Professional)
Persian (Native)
Turkish (Mother Tongue)
My Portfolio
Explore some of my recent projects, demonstrating my expertise in data science, web development, and process automation.
