Data Scientist - AI/ML Engineer with 5+ Years Experience

Keith Machina

*****************@*****.*** 440-***-**** Cleveland, OH

https://www.linkedin.com/in/keith-martin-machina-39b584148/ SUMMARY

Professional with 5+ years of experience in advanced analytics, ML & AI. Skilled in Python, R, SQL, and Excel, with strong research experience from a Master’s in AI. Proven ability to deliver data-driven insights, optimize models, and support product innovation through automation and communication from previous roles. WORK EXPERIENCE

T-Mobile Georgia, Atlanta

Data Scientist Jul 2025

• Built and maintained medallion-style data models (Bronze/Silver/Gold) on Databricks using Delta Lake to enable scalable, trusted downstream datasets.

• Designed end-to-end ETL pipelines in Databricks (PySpark + SQL) to deliver production-grade tables for analytics, reporting, and operational workflows.

• Prepared and validated data for RAG ingestion (cleaning, normalization, chunking, metadata enrichment, and quality checks) to improve retrieval performance.

• Researched and evaluated retrieval strategies to increase response relevance and accuracy; partnered with stakeholders to translate requirements into AI-ready datasets.

• Authored technical documentation, including ETL workflows, deployment procedures, operational runbooks, and data lineage for maintainability and onboarding. Oceaneering Mobile Robotics Cleveland,Ohio

Technical Analyst – Robotics Systems Sep 2024 - Jul 2025

• Performed analytical troubleshooting of robotic systems.

• Analyzed robotic system performance using PowerBI, developing dashboards to identify trends and support data-driven improvements.

• Developed a Generative AI-based diagnostic tool using the LLaMA model to improve hardware fault detection and predictive maintenance.

• Authored detailed technical documentation and operational procedures Advanced Tele Robotics Laboratory

AI Researcher Jan 2023 - Aug 2024

• Develop computer vision algorithms that enhance robotic sensory interpretation, enabling more accurate environmental responses.

• Create natural language processing models to refine robot communication and comprehension.

• Conduct artificial intelligence research to drive innovation and elevate technological performance in robotics. Artificial Intelligence Center of Excellence

Data Scientist Feb 2020 - Sep 2022

• Enhanced LSTM time series models by implementing advanced feature engineering and fine-tuning hyper-parameters to improve predictive accuracy.

• Deployed machine learning models efficiently utilizing web interfaces, MLOps practices, and containerization with Docker.

• Authored comprehensive documentation and constructed modular codebases, optimizing for performance and ease of maintenance across collaborative projects. Dukaree Innovation Limited

Data Scientist Aug 2018 - Jan 2020

• Conducted comprehensive data analysis and visualization, utilizing PowerBI and executing SQL queries for MySQL and PostgreSQL databases.

• Constructed and deployed machine learning models, streamlining processes through the development of automation pipelines.

• Authored technical documentation for five advanced machine learning models, complete with architectural diagrams, enhancing team comprehension and maintenance efficiency. EDUCATION

Kent State University

Masters of Science, Artificial Intelligence

Aug 2024

Jomo Kenyatta University of Agriculture and Technology Bachelor of Science, Information Technology

Nov 2020

SKILLS

Python • R • C++ • Data Analysis • Visualization • Mining • Machine Learning • Deep Learning • Deployment • Docker

• Aws • Generative AI • Data Visualization • Tableau • PowerBI • Excel • SAS

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