Louizos Alexandros L.

I am Alex, a Machine Learning Engineer with over 13 years of hands-on experience transforming complex data into actionable insights and building end-to-end AI solutions. I have successfully designed, developed, and deployed deep learning systems in both cloud environments and at the edge, ensuring scalability and performance. My skill set spans the entire ML pipeline—from data extraction, processing, and analysis to state-of-the-art model development and operational deployment. I bring a wealth of experience in computer vision, LLMs, predictive modeling, and advanced data engineering. For the last 3 years, I’ve been focused on creating AI-driven applications and agents powered by Large Language Models (LLMs), enabling dynamic, human-like interactions and intelligent automation. Key Strengths & Specialties: • End-to-end ML Development: Expert in building machine learning pipelines from raw data ingestion to deployment, ensuring robust performance at scale. Experience with scikit-learn, pandas, PySpark, deployment of models in cloud and optimizing performance, debugging and monitoring drift of models. Examples of work: Development of a high-performance fraud detection model in real-time submillisecond delivery currently processing more than 1.5 billion transactions per year for Fortune 500 companies. A patent was issued for this AI system: US20240346008. An AI system to assist auditors in medical coding that leads to more than 20% loss recovery of missed medical claims. Deployed in production in a major RCM company in the US. • Deep Learning & Computer Vision: Proficient in designing and optimizing CNNs, object detection, image classification, and other vision-based solutions. Experience with Pytorch, TensorFlow, and all CNN models with transfer learning to optimize for specific applications. Examples of work: A development of a computer vision model that automatically assesses car damage from a photo. Deployed in production in the top 10 US car insurance companies. A patent was issued for this AI system: US20240346008. A computer vision system for a major photo repository company that automatically classifies ancient sculptures, people, and art. Classified and analyzed millions of images to assist in the institute's work. Analyzed satellite images for a major Fortune 100 company that assisted in recognizing wind turbines that were due for maintenance to guide the sales team to prioritize outreach to clients. • LLM & AI Agent Development: Experienced in fine-tuning and integrating large language models for conversational AI, knowledge extraction, and intelligent assistants. Experienced in building RAG pipelines for private data repositories and LLM agents that perform complex tasks with standardized effective outcomes. Expert in all major LLM models, LlamaIndex for RAG and context-aware agents, CometML for LLMs performance monitoring in production, CrewAI for effective AI agents creation, and federation learning for finetuning agents in private data. Examples of work: Created an LLM agent for a major recruiting agency that automatically scouts for candidates, performs the outreach with uber personalized emails, schedules calls, and assists in screening the candidates during the call. Increased pipeline of candidates by 300% and reduced time to hire by 200%. Created multiple chatbots that are finetuned in specific industries and knowledge graphs and can assist in critical business functions without hallucinations. • Data Engineering & Big Data: Skilled in data architecture, distributed systems, and cloud technologies (AWS, GCP, Azure) to handle large datasets efficiently. Example of work: Processed more than 60GB of historical data for a hedge fund to derive modeling insights for optimizations of trading. Pipeline created for data updating and processing daily. • Predictive Modeling & Insights: Expertise in creating predictive algorithms that uncover valuable business insights, backed by sophisticated visualizations and dashboards. • Professional Delivery & Collaboration: Known for clear communication, timely project execution, and consistent focus on delivering measurable value to clients. References of previous clients available. What I Offer: • Customized ML solutions tailored to your business goals, whether it’s enhancing existing pipelines, deploying state-of-the-art deep learning models, or integrating advanced AI LLM agents. • Full-spectrum consulting and implementation—from initial data exploration to final model deployment—in cloud or on-premise setups. • Collaborative approach that values transparency, adaptability, and agile workflows, ensuring that projects stay on track and deliver real impact. If you’re looking to elevate your data-driven strategies or adopt cutting-edge AI solutions, let’s discuss how we can make it happen. I look forward to contributing my expertise and passion to help your project succeed.