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Sereno Lorenzo

@serenolorenzo

Message

Senior AI/ML engineer and data scientist delivering scalable production ML and LLM solutions.

United States

Message

What I'm looking for

I seek roles building production-grade LLM and ML systems, emphasizing end-to-end deployment, scalable microservices, collaborative teams, and measurable product impact.

I am a Senior AI/ML Engineer and Data Scientist with over nine years of hands-on experience building, deploying, and scaling machine learning and deep learning systems across e-commerce, finance, and healthcare. I specialize in LLM engineering, RAG pipelines, vector search integrations, and production microservices that drive measurable business outcomes such as increased engagement and conversion rates.

I lead end-to-end projects from data engineering and model development to CI/CD deployment and monitoring, using AWS, SageMaker, Docker, Kubernetes, and Datadog. I have a strong track record improving model accuracy and efficiency, reducing time-to-market, and delivering customer-facing AI features that enhance personalization, support automation, and operational reliability.

Experience

Work history, roles, and key accomplishments

Senior AI/ML Engineer

ITRex

Jul 2022 - Jul 2025 (3 years)

Spearheaded development of LLM-based applications and RAG pipelines, improving user engagement by 25% and reducing time-to-market for new features by 20% through scalable microservices and production deployments.

LLMs RAG fastAPI AWS Sagemaker Pinecone Faiss Datadog LLM

AI/ML Developer

OpenXcell

Jan 2019 - Jun 2022 (3 years 5 months)

Developed and deployed deep learning models and vector-search-enabled recommendation systems, improving recommendation accuracy by 40% and integrating pipelines with SQL and BigQuery for real-time analytics.

TensorFlow Keras Pinecone Faiss SQL BigQuery Optuna Data Engineering

Software Developer

Affectiva

Jul 2017 - Dec 2018 (1 year 5 months)

Implemented recommendation systems and A/B testing frameworks that increased user engagement by 15%, and designed automated workflows to streamline model retraining and deployment.

Recommender Systems A B Testing TensorFlow CI CD

Python Developer

Intellectsoft

Jun 2016 - Jun 2017 (1 year)

Assisted in development and deployment of ML models for image classification and text analysis, integrated models into RESTful APIs, and deployed containerized solutions with Docker and Kubernetes.

Python TensorFlow Flask Django Docker Kubernetes MySQL PostgreSQL

Junior Full Stack Developer

Seasia Infotech

Jan 2016 - Jun 2016 (5 months)

Assisted in developing and deploying ML models for predictive analytics and contributed to backend services with Node.js and Express, supporting integration of ML models into scalable applications.

Python TensorFlow Node Express React Vue.Js RESTful APIs

Education

Degrees, certifications, and relevant coursework

Middle Tennessee State University

Bachelor of Science, Computer Science

2010 - 2015

Completed a Bachelor's Degree in Computer Science with coursework and projects focused on software development, machine learning, and data engineering.