Osvaldo Velazquez

I'm

About me

Dedicated Data Scientist, ML, and Software engineer with over 5 years of experience. Expertise in predictive model development, deployment, and implementation of artificial intelligence algorithms and methods. I have used Python, SQL, Matlab, and R throughout my career. Experienced in NLP, Large Language Models (LLM), time series analysis, ETL process, and tabular data for classic classification and regression. I have used cloud computing for production ML models, such as AWS and Azure.

Computer & ML Scientist

I research and implement novel machine-learning algorithms in order to improve the performance for medical pre-diagnosis of several diseases against classic ML models. I am passionate about learning and applying new AI sophisticated technologies to create a positive impact.

  • Interest: Machine Learning, Data Science, Deep Learning, NLP, Predictive Models, Cloud Computting.
  • Country: Mexico
  • Degree: MSc in Computer Science

Resumes

Education

MSc in Computer Science

2020 - 2022
Cum Laude Mention

Instituto Politécnico Nacional, Mexico City, MX

At Centro de Investigación en Computación. Thesis: Computational Intelligence Algorithms for Medical Pre-diagnosis of Respiratory Diseases.

Bachelor of engineering in Computer Systems

Tecnológico Nacional de Mexico, Tuxtla Gutierrez, CHIS

Professional Experience

Senior Data Scientist

2023 - Present

Atlanta, GA, USA

  • Development end-to-end of a churn predictive model applying XGBoost and AutoPilot in AWS SageMaker using demographic information about the customer.
  • Development PoC of a sentiment analysis model applying transformers and transfer learning. Also, the development of a text Generative model to assist in the generation of product descriptions applying LLM, such as GPT3.5.
  • Collaborate with ML engineers, data engineers, and stakeholders to develop data and models in an accurate manner.
  • Deploying and monitoring ML models in order to report and track model performance during the time.

Machine Learning Engineer

2022 - 2023

Guadalajara, Jalisco, MX

  • Migrated, and deployed ML models to identify high-risk clients and opportunities using XGBoost, and Random Forest.
  • Development of pipelines of machine learning models, ensuring reliable model deployment, monitoring, and management.
  • MLOps applications using ML and Cloud computing tools.

Machine Learning Research Assitant

2020 - 2022

Mexico City, MX

  • Designed a novel Machine Learning algorithm to deal efficiently with class imbalance, with higher performance of various state-of-the-art models
  • Implemented several ML models, like k-NN, RandomForest, C4.5, MLP, Naive Bayes, and SVM in order to predict and pre-diagnosis several respiratory diseases.
  • Proposed and conducted ML research experiments applying post-hoc methods like Friedman and Holm to evaluate designed models against state-of-the-art models.

Projects

Here I will show and describe some of my most important projects that I built as ML Engineer and Data Scientist.

  • All
  • DS
  • Research
  • MLops

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