D. Sery
Data Scientist

Daniel Sery

Analytics and machine learning for finance, energy, and healthcare.

MS Data Science, UVA · Open to relocation
01 / About

About me.

Recently finished an MS in Data Science at UVA (4.0 GPA), after two and a half years at the Virginia Retirement System and a quantitative undergrad in math and economics, also at UVA.

Most of the work has been analytics. Dashboards, scoring models, document automation, ETL. Some applied ML where it fit, including a recent computer vision capstone at UVA's medical school. The contract before VRS was in energy markets, working on generator data for industrial price models.

Outside of work, mostly cars, cameras, friends, among other things. I waste money on a 50 year old sports car and Polaroid film, and occasionally a 24 Hours of Lemons team.

02 / Work

Where I worked.

2023 to 2025

Data Scientist

Virginia Retirement System  ·  Richmond, VA
  • Applied NLP and LLM-based sentiment analysis to 10-K/Q filings, news, and FOMC communications, producing macro signals consumed by the investment team for quarterly outlook reporting.
  • Built an OCR + NLP document-processing pipeline for SEC ADV compliance, cutting quarterly manual review by ~50% and improving audit traceability.
  • Engineered SQL stored procedures and views supporting Treasury and Risk reporting.
  • Led cross-team process redesign and automation initiatives across Real Assets, Credit Strategies, Risk, Treasury, and external vendors (Snowflake, BarraOne), reducing end-to-end processing time by 30%+.
  • Partnered with Equity, Risk, and Treasury stakeholders to ship Tableau, Streamlit, and Excel/VBA tools, including a cash-visibility dashboard that surfaced previously unrecognized free cash for the Treasury team.
  • Developed and maintained Python- and MATLAB-based factor scoring models and automated ETL pipelines, including exploratory data analysis on structured and document-based data such as PDF and XML, improving data integrity and reducing manual upkeep.
2022 (contract)

Data Analyst

Tabors Caramanis Rudkevich  ·  Energy markets consultancy
  • Processed 5M+ records of generator production data to derive operational parameters (min output, min up/down times, ramp constraints) feeding industrial price models and trading simulations.
  • Built scraping and ingestion pipelines across 10+ facilities, adding 200k+ historical data points and correcting previously misreported entries.
  • Developed anomaly detection logic to automatically flag forced outages and equipment downtime, reducing manual review.
2018 to 2022

Earlier analytics work

Various organizations  ·  Part-time & project-based
  • Time-series forecasting (ARIMA), anomaly detection, and visualization on operational datasets including municipal waste collection and athletic-performance data, supporting investigative analysis and policy evaluation.
03 / Projects

Project work.

Surgical instrument recognition

UVA School of Medicine · Capstone

Computer vision models (YOLO11, OpenCV) trained for segmentation and identification of over two dozen surgical cart instruments and equipment from hours of video, cross-referenced against surgeon preference cards to quantify utilization and identify waste-reduction opportunities. Capstone for the PeriOp Green academic lab at the UVA School of Medicine.

Source materials are not publicly distributed at the lab’s preference. High-level summary available on request.

YOLO11 instrument detection. Capstone demo.

LLM fine-tuning, published on Hugging Face

Personal · Open-source

Fine-tuned an open-weights 8B base model with PEFT/AdaLoRA for a headline classification. Published model card, evaluation methodology, and results on Hugging Face alongside reproducible training code.

04 / Skills

What I use.

Languages
Python (pandas, NumPy, scikit-learn, PyTorch, Keras), SQL, R, MATLAB, VBA
ML & AI
NLP (spaCy, NLTK, Hugging Face Transformers), LLM APIs (OpenAI, Anthropic), PEFT/LoRA fine-tuning, computer vision (YOLO, OpenCV), supervised & unsupervised learning, Bayesian modeling, time-series (ARIMA), regression
Data & Infra
Snowflake, ETL pipelines, SQL stored procedures, OCR, PDF/XML ingestion, data validation, web scraping, workflow automation (PowerAutomate), Git, Jira (agile)
Visualization & BI
Tableau, Streamlit, Plotly, Excel (PivotTables, VBA, VLOOKUP)
05 / Contact

Reach me.

Currently looking for full-time work. Data scientist, data analyst, or ML engineering roles, in person or remote. Email or LinkedIn is fastest.

LinkedIn /in/daniel-sery
Hugging Face /dms3g

Résumé

Download a copy of my résumé as a PDF.