Custom AI Models

Yeriko Vargas

AI Engineer · AI Systems Architect · Detroit, MI

Skills

AI changes its name every year. The science under it doesn't. I learned that science under Professor Ravindra Khattree at Oakland University, so I know what a model is doing, where it breaks, and how to build and ship the system around it, end to end.

Architect

AI systems · agents

Claude API · OpenAI API · RAG architecture · agent orchestration · multi-agent pipelines · context engineering · forward-deployed delivery

MLOps · telemetry

Evaluation loops · cost caps per run · deterministic gates around every model call · signal and run telemetry

Ship it, full DevOps

Git/GitHub · FastAPI · GCP · AWS (S3, SageMaker) · Railway · Cloudflare · VMs and GPUs · Bash, SSH, the terminal

Build the product

Python · C++ · JavaScript · HTML web apps · dashboards (Tableau, Power BI) · data management systems · SQL · Spark · Hadoop · MATLAB · Jupyter

Model

ML · deep learning

scikit-learn · Keras · TensorFlow · PyTorch · XGBoost · MLPs · LSTM forecasting · SHAP

Statistics

Regression and regression trees · mixed models · Poisson and multinomial · survival (Cox PH) · ANOVA · Bayesian and frequentist

Find the structure

PCA · cluster analysis · forecasting · customer churn · risk tiers · quantitative and qualitative analysis

Audio · voice · signal

Real-time DSP (librosa, essentia, aubio) · speech and voice analysis · sensor feeds · feature extraction

With people

Strategy

Business AI optimisation · picking the least AI that does the job · systems thinking

Team and room

Teamwork · presentations to the business · mentoring statistics and code

Industries

Automotive (diagnostics, configuration, ADAS) · finance · insurance and fraud · distribution · hospitality · healthcare research.