cv

Basics

Name Pedro Tajia
Label Data Science Undergraduate
Email amavizcapedro@gmail.com
Url https://pedrotajia.com
Summary Data Science undergraduate building machine learning systems and reinforcement learning projects.

Work

  • 2025.06 - 2025.08
    Manufacturing Engineering Intern
    New Hampshire Ball Bearings
    • Reviewed and updated 300+ machine setup sheets for turning operations, incorporating current tooling, blueprint-based dimensions/tolerances, and material-specific parameters.
    • Optimized feeds, speeds, and tool selections to improve production efficiency, reducing cycle times by 5%–30% per part while maintaining quality specifications.
    • Collaborated with manufacturing engineers, line leads, and machine operators to resolve non-standard cases, validate changes, and standardize setup documentation across production lines.
  • 2024.10 - 2025.01
    Machine Learning Engineer
    AI Student Collective
    • Created an AI-powered e-commerce tool that generated optimized descriptions across 200+ products.
    • Engineered text and price/meta features and solved severe class imbalance (900k rows; 12k positives) using hard-negative undersampling; validated with stratified splits.
    • Built a Streamlit app for interactive inference with prompting, side-by-side diffs, and guardrails for factual and brand compliance.
  • 2024.06 - 2024.08
    Manufacturing Intern
    New Hampshire Ball Bearings
    • Authored 3 illustrated operator manuals for retainer-line machinery in 3 months, tripling historical documentation output.
    • Collaborated directly with machine operators, line leads, and the manufacturing manager to capture tacit process knowledge and validate procedures.
    • Standardized machine operation, tool change, and part-inspection workflows using visual documentation, reducing process variance and ambiguity on the production line.

Education

  • Riverside, CA

    Bachelor
    University of California, Riverside
    Data Science

Skills

Programming Languages
Python
C/C++
R
AI & ML Frameworks
TensorFlow
PyTorch
Keras
Scikit-learn
Hugging Face
RoboSuite
LightGBM
Gymnasium
Developer Tools
Git
Visual Studio Code
PyCharm
Data Tools
Pandas
NumPy
Matplotlib

References

References
Available upon request.

Projects

  • 2025.08 - 2025.11
    MyDreamerV2
    Dreamer-style reinforcement learning agent in PyTorch using an RSSM world model and actor–critic imagination rollouts.
    • Reached 70% success after 280k environment steps.
    • Added Plan2Explore-style exploration bonus and enabled training on Apple Silicon via MPS.
    • Implemented episodic replay buffer and improved stability with gradient clipping, EMA target networks, and checkpoints.
  • 2024.10 - 2025.01
    SaleSense
    Inference app and model pipeline for scoring product listings and generating improved descriptions.
    • Optimized descriptions across 200+ products.
    • Handled severe class imbalance (900k rows; 12k positives) with hard-negative undersampling.
    • Streamlit interface with prompting, diffs, and compliance guardrails.
  • 2024.10 - 2025.01
    IntelliView
    A real-time interview coaching tool that analyzes facial emotions and speaking dynamics to generate a feedback timeline and post-interview report.
    • Built a real-time interview coaching tool that detects facial emotions and speaking dynamics, then generates a timeline and an interview report with feedback.
    • Trained a custom YOLO model for face/region detection and integrated it with a PyTorch emotion classifier (75% test accuracy)
  • 2024.10 - Present
    Technical Blog
    Step-by-step posts explaining AI/ML papers with diagrams, examples, and references.
    • Published on personal blog.
    • Published articles on Medium with Humans For AI.