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Paola Barrera

@paolabarrera

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Machine Learning Engineer improving production solutions with Python, SQL, and AWS.

Argentina

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What I'm looking for

I’m looking to build and deploy reliable ML solutions end to end—improving data quality, monitoring, and team collaboration—while continuously learning new methodologies in a production-focused environment.

I’m a Machine Learning Engineer committed to continuous learning and applying new methodologies to improve solutions. In production, I implement monitoring and notifications, ensure key logging for effective debugging, and troubleshoot unexpected behavior from source data. I also strengthen automation quality through code revision and improvement, and I remove vulnerabilities by minimizing libraries/dependencies and updating versions to meet compliance requirements.

I’ve contributed end-to-end to data and ML projects—from designing end-to-end workflows to building and maintaining a Feature Store for data quality and accessibility in production. Previously, I worked as a Data Scientist and Data Engineer, improving outcomes through recommendation systems, A/B testing, targeted campaigns, and churn prevention, while collaborating cross-functionally using tools like AWS and SCRUM practices.

Experience

Work history, roles, and key accomplishments

Current

Machine Learning Engineer

Current

Industrial and Commercial Bank of China (ICBC), G&L Group

Jan 2025 - Present (1 year 6 months)

Implemented production monitoring and notifications, logging, and debugging support to ensure reliable model delivery. Collaborated on end-to-end workflows and maintained a Feature Store while improving ML system methodology and evaluating MLflow for team productivity.

Amazon S3 Amazon Athena Teradata SQL Python Docker Gitlab Terraform AWS Lambda AWS Glue Amazon EventBridge MLFlow Monitoring Debugging Vulnerability Management Automation Machine Learning Systems

Data Scientist

Industrial and Commercial Bank of China (ICBC), G&L Group

Dec 2024 - Dec 2025 (1 year)

Developed and improved recommendation and customer retention initiatives using A/B testing and business stakeholder feedback. Built end-to-end solutions, including targeted campaigns and AWS troubleshooting related to permissions and workflow malfunctions.

AWS Sagemaker Amazon S3 Teradata SQL Python Google BigQuery Microsoft Power BI A B Testing Recommendation Systems Scrum Jira AWS Troubleshooting

Data Engineer

Bocancorp

Sep 2023 - Nov 2023 (2 months)

Translated business objectives into technical tasks and worked with the team to integrate project functionalities. Resolved technical issues in cloud environments and supported cloud-based data workflows.

AWS Lambda Amazon S3 Cloudwatch Amazon EventBridge RDS MySQL Python

Data Scientist

SoyHenry

Jan 2023 - Present (3 years 6 months)

Completed an intensive Data Scientist bootcamp (over one thousand hours) with work-like projects and recent technologies.

Electrical Engineering Project Design

Freelancer

Jan 2022 - Present (4 years 6 months)

Carried out end-to-end project work including scheduling, incorporating client modifications, and producing descriptive project documentation.

Project Scheduling Technical Documentation Project Design

Education

Degrees, certifications, and relevant coursework

SoyHenry

Data Science Bootcamp, Data Science

2023 -

Completed an intensive Data Scientist bootcamp at SoyHenry in 2023 (over 1,000 hours). The program included the latest technologies and work-like projects.