Daniel Haskell
Machine Learning Engineer
Applied ML projects that show their work: what the model saw, why it decided, and where it fails.
Philemon
Everything I've shipped
Tier 4Zero false positivesin 1,077 findings across 10 injected defect classes
ERP / OperationsArgus
JD Edwards Reconciliation Warehouse
A PostgreSQL warehouse that stores data the way JD Edwards does, broken on purpose, with SQL detection scored against a record of exactly what was broken.
- PostgreSQL
- Data Reconciliation
- Query Performance Tuning
- ERP Data Modeling
Tier 3$9,350saved per 1,000 loans, vs. a naive 50% cutoff
FintechThemis
Credit Default Risk Model
Calibrated XGBoost tuned on an asymmetric cost matrix, with SHAP explainability and a live FastAPI service.
- MLOps
- Cost-Sensitive Learning
- Model Calibration
- Explainability (SHAP)
Tier 325.9%holdout MAPE, against 34.7% for the seasonal naive baseline
FintechPythia
Trading Volume Forecasting
ETS shipped; XGBoost wins short-horizon validation, then drifts on the holdout. Served from a live FastAPI endpoint.
- Time Series Forecasting
- Prophet
- Model Benchmarking
- MLOps
Tier 219/19retrieval hit rate — 23/23 faithfulness and answer relevance
FintechMnemosyne
SEC Filing Q&A
Answers questions about a company's SEC filings and cites the exact paragraph each fact came from.
- RAG
- Vector Search
- Eval Harness
- Claude API
Tier 260%agreement between VADER and DistilBERT across 51,643 real comments
NLP / ResearchEris
Sentiment Model Comparison
Runs two sentiment-reading methods over real Reddit comments and shows exactly where they disagree.
- Fine-Tuned Transformer
- Sentiment Analysis
- Model Comparison
- GPU Inference
More shipped work
demoTier 3Anima
3D Character Creator
Graphics
liveTier 2Cassandra
Earnings Sentiment vs Stock Movement
Fintech
liveTier 2Harmonia
Resume-Job Match Scorer
HR Tech
liveTier 2Milo
Gym Progression Tracker
Personal Tool
liveTier 2Joyeuse
Discord Image Generator Bot
Personal Tool
liveTier 1Horkos
Contract Risk Flagging
Legal Tech
liveTier 1Hygieia
Health Inspection Tracker
Public Data
liveTier 1Deucalion
Flood Risk vs Home Price
Public Data
liveTier 1Peitho
Lead Qualification Chatbot
Conversational AI- buildingTier 1
Plutus
Investment Research Agent
Fintech 
liveTier 2Hestia
Event Booking System
ERP / Operations
About
I'm a machine learning engineer and data scientist. B.S. Data Science, Minor in Computer Science, Rutgers University.
I build systems end-to-end: framing the problem, training and validating the model, and shipping it behind a live API.
Education
B.S. Data Science, Minor in Computer Science
Rutgers University · June 2026
- Machine Learning
- Data Structures & Algorithms
- Statistical Modeling
- Regression Methods
- Q-Learning
- Applied ML Concepts
Security
Yearly CTFs
- DEFCON Qualifier
- Texas Security Week
Contact
- Emaildaniel@dhaskell.dev
- GitHubgithub.com/bigrolla
- LinkedInlinkedin.com/in/danielhaskell2