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Education

PUC-Rio

2022–2026

PhD candidate in Computer Science (Machine Learning Engineering)

Rio de Janeiro, Brazil

University of São Paulo (USP)

2023–2025

MBA in Data Science & Analytics

Piracicaba, Brazil

PUC-Rio

2020–2022

M.Sc. in Physics (Particle Physics)

Rio de Janeiro, Brazil

Universidade Federal Fluminense (UFF)

2016–2020

B.Sc. in Physics with Teaching Certification

Niterói, Brazil

Experience

Dell Technologies

Apr 2026–Present

Applied Scientist & AI Engineer

Ottawa, Canada

  • Conduct applied research on multimodal generative model inference, scalability, and AI systems performance. Proposed adaptive routing to select image-processing configurations based on task context, and developed semi-analytical models for latency, resource utilization, and serving capacity.
  • Built a capacity-planning platform for AI datacenters to identify hardware configurations that meet SLOs for multimodal serving; characterized inference bottlenecks and developed strategies to improve latency, scalability, and hardware efficiency.
  • Technologies: Python, FastAPI, React, Hugging Face, vLLM, PyTorch, Docker, NVIDIA Nsight Systems, and NVIDIA AI Perf.

PUC-Rio

Aug 2022–Present

Machine Learning Engineering Doctoral Researcher

Rio de Janeiro, Brazil

  • Investigate agile management and requirements engineering practices for ML workflows, translating engineering challenges into evidence through industry–academia collaboration.
  • Delivered MVPs for industry partners; received the Best Industrial Experience Paper Award at Software Quality Days 2025 for work on ML process optimization.

ExACTa PUC-Rio

Aug 2022–Jan 2026

Data Scientist

Rio de Janeiro, Brazil

  • Shipped an agentic cybersecurity service connecting generative AI with proprietary fraud, malicious-site, and financial-transaction tools using LangChain, PyTorch, YOLO, Scikit-learn, RAG, and Model Context Protocol (MCP). Replaced third-party services with in-house systems and applied Clean Architecture with FastAPI and NestJS.
  • The service reached approximately 4 million users; its fraud-detection pipeline outperformed the legacy solution by more than 60%, while eliminating third-party operating costs.
  • Modernized an NLP and supervised-learning service, achieving approximately 79% on its evaluation metric (+14%) while reducing the model footprint by tens of MB.
  • Built a computer-vision system using fine-tuned YOLO models to interpret electrical diagrams, reducing repetitive manual work by approximately 10 hours per week.
  • Led delivery from discovery to production as Agile lead and Solutions Architect. Built production systems on GCP with Docker and conducted data analysis with Pandas and SQL.
  • Technologies: Python, PyTorch, Scikit-learn, YOLO, LangChain, MCP, SQL, Docker, GCP, FastAPI, NestJS, and TypeScript.

European Organization for Nuclear Research (CERN)

Jan 2021–Sep 2022

Data Scientist

Geneva, Switzerland

  • Designed and validated ML analytical pipelines using statistical inference, hypothesis testing, and uncertainty analysis. Ran more than 4,000 Monte Carlo pseudo-experiments to assess robustness, bias, and signal-to-noise separation.
  • Validated an unbiased strategy with zero spurious signals, reduced pipeline memory by 80% (approximately 100 GB to 20 GB RAM), and saved more than 2 TB of storage.
  • Technologies: Python, C++, ROOT, Pandas, NumPy, Scikit-learn, Linux, Bash, and Monte Carlo simulation.

Awards

  • Best Industrial Experience Paper Award — Software Quality Days (SWQD), 2025.

Skills

  • Languages: Python, SQL, TypeScript.
  • AI & frameworks: PyTorch, Scikit-learn, TensorFlow, LLMs, RAG, Model Context Protocol (MCP), computer vision, NLP, audio analysis, LangChain, Pandas, FastAPI, NestJS.
  • Databases: MySQL, PostgreSQL, Pinecone, Chroma.
  • Cloud & tools: GCP, AWS, Docker, Linux, Git, Librosa, FFmpeg, Grafana, MLFlow.
  • Practices: Agile/Scrum, Clean Architecture, Hexagonal Architecture, MLOps, CI/CD, REST.

Contact

lc.romao98@gmail.com · Rio de Janeiro, Brazil · LinkedIn · GitHub