![Alex Retana](https://jobicy.com/react/themes/app/images/avatar.jpg) Alex Retana # AI/ML Engineer & Data Engineer Actively looking · Member since 29 Oct 2025 [Message](https://jobicy.com/dashboard-page.md) ShareLocationUnited StatesDesired salaryUnspecifiedWork preferenceFull TimeExperience levelNot set * [Overview](#overview) * [Portfolio 0](#portfolio) * [Services 0](#services) ## About Professional summaryI am an AI/ML Engineer and Data Engineer with over 3 years of experience building production machine learning systems and scalable data pipelines that process more than 2 GB of data daily. My expertise lies in Retrieval-Augmented Generation (RAG), MLOps, and real-time streaming architectures. I have successfully reduced data latency by 98%, improved query performance by 97%, and deployed ML models achieving 90% accuracy for predictive analytics in manufacturing operations. My technical skills include working with ML/AI frameworks such as PyTorch and TensorFlow, integrating large language models like OpenAI and LangChain, and managing cloud platforms including AWS and Azure. I am proficient in building ETL/ELT pipelines, real-time streaming with Kafka, and designing dimensional data models for OLAP warehouses. I am a strong communicator with a background in teaching, which enables me to translate complex technical concepts effectively for stakeholders and foster cross-functional collaboration. I have experience creating internal web tools and visualizations to improve operational efficiency and developer satisfaction. Throughout my career, I have worked on automating data workflows using AI-driven solutions and integrating CI/CD pipelines to enhance deployment reliability. I am passionate about leveraging data engineering and machine learning to solve real-world problems and am open to remote opportunities in AI/ML Engineering and Data Engineering roles. I am fluent in English and have limited working proficiency in Spanish. I continuously seek to expand my knowledge through certifications and hands-on projects, aiming to deliver impactful data-driven solutions. ## Skills 12 capabilities[AWS S3](https://jobicy.com/talent/aws-s3.md)[Azure DevOps](https://jobicy.com/talent/azure-devops.md)[Data Analysis](https://jobicy.com/talent/data-analysis.md)[Docker](https://jobicy.com/talent/docker.md)[JavaScript](https://jobicy.com/talent/javascript.md)[Kafka](https://jobicy.com/talent/kafka.md)[Python](https://jobicy.com/talent/python.md)[React](https://jobicy.com/talent/react.md)[SQL](https://jobicy.com/talent/sql.md)[Teaching](https://jobicy.com/talent/teaching.md)[TensorFlow](https://jobicy.com/talent/tensorflow.md)[Troubleshooting](https://jobicy.com/talent/troubleshooting.md) ## Experience Career history ### Data Science Software Engineer II · Automation NTH November 2021 – January 2025Architected real-time streaming integration using Azure Functions and Kafka, processing 2+ GB of manufacturing data daily and reducing data availability lag from 4 hours to 2 minutes (98% latency reduction). Optimized Azure Cosmos DB queries and indexing strategies, accelerating report runtimes from 5 minutes to 10 seconds (97% improvement). Engineered ETL pipelines using Python, SQL, and AWS Lambda to ingest manufacturing data into Snowflake, maintaining 99.9%+ pipeline availability through automated monitoring and proactive failure resolution. Designed dimensional data models in MS SQL, MariaDB, and PostgreSQL for centralized OLAP warehouses. Built CI/CD workflows in Azure DevOps reducing deployment failures by 80%. Created internal web tooling using React and Power BI visualizations, reducing time-to-action by 40%. Integrated AI-driven automation using LLM APIs to improve task efficiency by 30%. Collaborated with product managers and BI stakeholders to define data product requirements and establish data governance. ### Provisioning Analyst · Hotwire Communications Ltd January 2021 – November 2021Remotely provisioned and troubleshot Residential ONTs using various query tools. Liaised issue escalations between stakeholders. Improved communication between Account Managers, Customer Service, and Tier 2 teams. Created data visualizations webpage to provide insights on peer performance, leading to a 25% increase in daily solved tickets. ### Bootcamp Teacher Assistant · Trilogy Education March 2021 – August 2021Assisted instructor in leading a 24-week Data Analysis and Data Visualization Bootcamp in partnership with Penn State University. Provided tutoring and support on Python, Excel, Pandas, and other Data Science tools. ### IT Help Desk Administrator · The Catamaran Company August 2019 – December 2020Managed data integration into CRM systems including data quality checks, resulting in a 60% increase in lead generation. Ran usage reports on web services to promote adaptation or design cost-efficient operations saving thousands of dollars. Troubleshot issues and trained employees on best practices. ### Machine Learning Student · Springboard April 2019 – April 2020Completed 650+ hours in Data Science/Machine Learning Career Bootcamp. Developed a capstone project creating a predictive model for financial complaints involving data cleaning, model training, comparison, and API design hosted via Docker. ### High School Mathematics Teacher · Katz Yeshiva Highschool of South Florida August 2018 – May 2019Created an engaging classroom environment. Designed a Geometry course using test/quiz score metrics to generate alerts for irregular patterns, achieving a 100% pass rate. ### Graduate Teacher Assistant · Florida State University July 2017 – December 2017Part-time Teacher Assistant for Physics Labs. Trained college students in data analysis and deductive reasoning to prove physical laws. Updated grading rubrics based on student performance analysis. ### Physics Graduate Student (Graduate Assistant) · Florida International University August 2015 – August 2016Part-time Teacher Assistant for intro level physics labs using Investigative Science Learning Environment (ISLE) techniques. Worked with researchers to provide feedback and metrics on student performance and interest. ## Education Learning history ### Florida International University 2012 – 2015Bachelor of Science in Physics This professional hasn’t added portfolio projects yet. This professional hasn’t listed any services yet.