Cesar Romero
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Cesar Romero Email & Phone Number

Principal Machine Learning Engineer at R5
Location: Seattle, Washington, United States 11 work roles 2 schools
1 work email found @amazon.com 4 phones found area 773, 786, and 305 LinkedIn matched
✓ Verified May 2026 4 data sources Profile completeness 100%

Contact Signals · 1 work email · 4 phones

Work email c****@amazon.com
Direct phone (773) ***-****
LinkedIn Profile matched
3 free lookups remaining · No credit card
Current company
R5
Role
Principal Machine Learning Engineer
Location
Seattle, Washington, United States

Who is Cesar Romero? Overview

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Quick answer

Cesar Romero is listed as Principal Machine Learning Engineer at R5, based in Seattle, Washington, United States. AeroLeads shows a work email signal at amazon.com, phone signal with area code 773, 786, 305, and a matched LinkedIn profile for Cesar Romero.

Cesar Romero previously worked as Machine Learning Engineer and Owner at R5 and Machine Learning Engineer at Groundlight Ai. Cesar Romero holds Master Of Science, Computer Science from Ucla.

Company email context

Email format at R5

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{first_initial}{last}@amazon.com
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Profile bio

About Cesar Romero

principal machine learning engineer with 14yrs in the software industry most interested in open source developer tools. I started studying AI in 2005.I have helped lead the development and launch of several production ML systems at amazon and unity, helped grow departments and led cross department collaborations. I enjoy working on complex ambiguous technical problems and teach others do the same from interns to CEOs.

Listed skills include Microsoft Office, Powerpoint, Microsoft Excel, Microsoft Word, and 55 others.

Current workplace

Cesar Romero's current company

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R5
R5
Principal Machine Learning Engineer
11 roles

Cesar Romero work experience

A career timeline built from the work history available for this profile.

Machine Learning Engineer And Owner

Current
R5

I bring my experience and passion as a Machine Learning engineer and advisor to companies that need help defining their AI strategy, building or growing ML teams, improving their ML pipelines and scale ML systems on the cloud. Projects include:- computer vision for patient observation at https://www.ouva.co/products/care-automation- recommender system for.

Feb 2023 - Present

Machine Learning Engineer

Seattle, Washington, US

First batch of full time engineers. Built several aspects of the infrastructure including monitoring and automated provisioning of edge devices. Redesigned and implemented critical parts of the core codebase to increase the productivity of scientists and enable more complex ML pipelines in production

Aug 2021 - Feb 2023

Principal Machine Learning Engineer

San Francisco, US

work across teams in the AI dept and sometimes lead collaborations with other departments. Led strategic decisions to focus both ML and unity developers on building tools to generate synthetic data for computer vision using unity. I helped narrow the scope of the domains and tasks of an initial release of the open source perception package. I also defined.

Aug 2018 - Jul 2021

Senior Machine Learning Engineer

San Francisco, US

Joined as the first engineer in the AI dept with broad goals of making unity better using ML.Helped define unity ML agents and contributed to the project until it's first public releaseIdentified the opportunity and led the development of ML services all the way to production for the unity asset store. Work includes the first personalized recommendations.

Feb 2017 - Aug 2018

Software Development Engineer Ii

Seattle, WA, US

* Automating Hyperparameter Optimization for recommendation models.* Using Neural Nets to produce personalized recommendations across categories and devices. https://github.com/amznlabs/amazon-dsstne* AWS Amazon Machine Learning service launch team https://console.aws.amazon.com/machinelearning/*Same-Day delivery launch team..

Oct 2013 - Jan 2017

Software Development Engineer I

Seattle, WA, US

Write backend software for a large-scale automated classification and review service using tools like Hadoop and Pig on AWS Elastic Map Reduce (EMR)

Jun 2011 - Oct 2013

Teaching Assistant

Los Angeles, CA, US

Led and prepared weekly discussion sessions for the School of Engineering focused on Engineering ethics and technical writing.

Sep 2009 - Mar 2011

Software Engineer Intern

Mountain View, CA, US

Designed and developed a minimal DHCP server to net boot production devices in data centers as part of an automated installation process.

Jun 2010 - Sep 2010

Software Developer

Universidad Simon Bolivar

· Designed and developed a novel algorithm to work with satellite images and its web interface. Used temperature and chlorophyll concentration information extracted from these images to compute the area of different upwelling systems · Implemented web applications to view metadata extracted from satellite images with temperature, chlorophyll and wind.

Oct 2007 - Jun 2008

System And Network Administrator

Universidad Simon Bolivar

· Migrated a running MySQL and Apache server across different linux distributions (Gentoo & Arch).

Oct 2007 - Jun 2008

System Administrator

Natural Resources Institute

· Mantained a small network with 7 windows clients, 2 printers, 1 linux server. Installed and configured various network services including: Apache, Subversion, Bind, Postfix

Oct 2006 - Jun 2008
2 education records

Cesar Romero education

Master Of Science, Computer Science

Ucla

Engineer, Computer Engineering

Universidad Simón Bolívar
FAQ

Frequently asked questions about Cesar Romero

Quick answers generated from the profile data available on this page.

What company does Cesar Romero work for?

Cesar Romero works for R5.

What is Cesar Romero's role at R5?

Cesar Romero is listed as Principal Machine Learning Engineer at R5.

What is Cesar Romero's email address?

AeroLeads has found 1 work email signal at @amazon.com for Cesar Romero at R5.

What is Cesar Romero's phone number?

AeroLeads has found 4 phone signal(s) with area code 773, 786, 305 for Cesar Romero at R5.

Where is Cesar Romero based?

Cesar Romero is based in Seattle, Washington, United States while working with R5.

What companies has Cesar Romero worked for?

Cesar Romero has worked for R5, Groundlight Ai, Unity Technologies, Amazon, and Ucla.

How can I contact Cesar Romero?

You can use AeroLeads to view verified contact signals for Cesar Romero at R5, including work email, phone, and LinkedIn data when available.

What schools did Cesar Romero attend?

Cesar Romero holds Master Of Science, Computer Science from Ucla.

What skills is Cesar Romero known for?

Cesar Romero is listed with skills including Microsoft Office, Powerpoint, Microsoft Excel, Microsoft Word, Teamwork, Leadership, Time Management, and Event Planning.

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