Cesar B.

Cesar B.

Mexico City, Mexico

ML/DevOps

9 years of exp.


Profile Summary

I have 8+ years of experience in Computer Vision and Machine Learning. My focus is on image classification and object detection, using various technologies such as Numpy, Pandas, Scikit-learn, Tensorflow, OpenCV, Docker, and AWS. I also have a background in software development.

Primary Skills

Python | 9 yrsAI Decision-Making | 4 yrsAI Optimization | 4 yrsGPT-4 | 7 yrsLLaMA | 9 yrsMachine Learning | 7 yrsAmazon Web Services (AWS) | 6 yrsAngular | 6 yrsApache Spark | 3 yrsTableau | 7 yrs

Culture Profile

In workplace, I am known for . . .
  • for being the one who is constantly studying.
  • for having the ability to explain my work to clients in non-technical terms.
I thrive in environments . . .
  • where I have the opportunity to work in companies that support valuable causes.
  • that provide autonomy and flexibility.
I struggle in environments . . .
  • where disrespectful communication from managers to the team is allowed.
  • where there is no room for feedback.

Work Experience

Kavak.com

Senior Machine Learning Engineer
  • Jul, 2023 - Present
  • Remote
  • Developed a retrieval-augmented generation chat system powered by LLMs (GPT and Claude) to assist supervisors in analyzing the customer’s call history, and facilitating identification of customer issues.
  • Implemented vector search capabilities to locate conversations related to specific problem areas.
  • Developed a comprehensive library of common functions tailored for projects utilizing LLMs, streamlining the transition between self-hosted LLMs and those accessed through APIs.
  • Cleanse, preprocess, and transform raw data into usable formats for machine learning models.

Skills

PythonAI AutomationAI ChatBotsAI Decision-MakingAI OptimizationAI Risk GovernanceGPT-4RESTful APIsAI InfrastructureAmazon API GatewayApache Spark

Industries

Autonomous Cars

ETH Zürich

Research Assistant
  • Jan, 2019 - Jun, 2023
  • Remote
  • Fine-tuned LLMs (Llama, Alpaca, GPT-J) with PEFT-LoRA and evaluated their capabilities across multiple tasks such as logical-fallacy detection, moral reasoning, and causal reasoning.
  • Conducted an in-depth exploration of the internal algorithms of transformers with mechanistic interpretability, facilitating insights about the role that different parts of the input text play in solving NLP tasks.
  • Conducted literature review, surveying relevant scholarly sources to inform and contextualize research efforts, preparing them for publication in renowned academic conferences.

Skills

PythonAWSAzureLLaMAAmazon Simple Notification Service (AWS SNS)Amazon Web Services (AWS)Azure AI Bot ServiceAzure AI Content SafetyAzure AI Custom VisionAzure AI Document IntelligenceAzure AI Immersive ReaderPower BITableau

Industries

Education

OPI Analytics

Senior Data Scientist
  • Feb, 2015 - Jan, 2019
  • Remote
  • Led the conception and implementation of comprehensive data analytics solutions, from raw data extraction to actionable insights.
  • Mentored and advised a team of three data scientists, guiding methodological approaches to enhance project outcomes.
  • Implemented statistical models to forecast sales, elucidate sales growth patterns, and optimize inventory management, utilizing experimentation to validate model efficacy.
  • Designed and implemented data pipelines to streamline data acquisition, processing, inference, and model evaluation.
  • Presented project results to stakeholders, effectively communicating complex technical concepts to diverse audiences.

Skills

C#PythonASP.NETAWSMachine LearningAmazon Web Services (AWS)AngularDocker

Industries

IT Services

Education

Bachelor's degree
  • Computer Science
  • Instituto Politécnico Nacional, Mexico
  • 2014
Master's degree
  • Data Science
  • ETH Zürich, Switzerland
  • 2017

Certifications

Probabilistic Graphical Models 1: Representation
  • Coursera
  • 2019
A Crash Course in Causality: Inferring Causal Effects from Observational Data
  • Coursera
  • 2019
Machine Learning
  • Coursera
  • 2020

All Skills

  • Languages

    • C# | 9 yrs
    • JavaScript | 9 yrs
    • TypeScript | 6 yrs
    • Java | 6 yrs
    • Python | 9 yrs
  • Libraries

    • React.js | 3 yrs
    • Apache Spark | 3 yrs
  • Frameworks

    • Vue.js | 5 yrs
    • ASP.NET | 9 yrs
    • Angular | 6 yrs
  • Cloud

    • AWS | 9 yrs
    • Azure | 6 yrs
    • AI Infrastructure | 4 yrs
    • Amazon API Gateway | 4 yrs
    • Amazon Simple Notification Service (AWS SNS) | 5 yrs
    • Amazon Web Services (AWS) | 6 yrs
    • Azure AI Bot Service | 3 yrs
    • Azure AI Content Safety | 5 yrs
    • Azure AI Custom Vision | 4 yrs
    • Azure AI Document Intelligence | 5 yrs
    • Azure AI Immersive Reader | 5 yrs
    • Power BI | 6 yrs
  • Databases

    • SQL Server | 3 yrs
  • AI

    • AI Automation | 4 yrs
    • AI ChatBots | 4 yrs
    • AI Decision-Making | 4 yrs
    • AI Optimization | 4 yrs
    • AI Risk Governance | 4 yrs
    • GPT-4 | 7 yrs
    • LLaMA | 9 yrs
    • Machine Learning | 7 yrs
  • APIs

    • RESTful APIs | 4 yrs
  • Tools

    • Docker | 6 yrs
    • Tableau | 7 yrs