David Chavarria
@davidch
Data Analyst with expertise in machine learning and data labeling.
What I'm looking for
I am a Data Analyst with over 5 years of experience specializing in machine learning and data analysis. My journey has equipped me with a robust skill set in high-quality data labeling, particularly during my tenure at Amazon - Alexa Data Services. I have successfully navigated through complex data environments, consistently delivering high-quality labeled data that enhances device performance. My commitment to precision and high standards has allowed me to exceed quality assurance metrics and contribute significantly to team objectives.
In my role, I have functioned as a Subject Matter Expert, providing coaching and support to both new hires and tenured employees. I take pride in mentoring teams, ensuring they meet key performance indicators and fostering an environment of continuous improvement. My analytical skills and attention to detail enable me to optimize workflows and enhance operational efficiency, making me a valuable asset to any organization.
Experience
Work history, roles, and key accomplishments
Data Analyst
Amazon - Alexa Data Services
May 2019 - Present (6 years 1 month)
As a Data Analyst with over 5 years of experience, I specialize in high-quality data labeling and analysis, working with text, speech, and other data types. I ensure the highest quality standards in data annotations and have successfully mentored new hires while exceeding QA metrics and performance targets.
Cashier
Walmart Costa Rica
Jan 2016 - Jun 2016 (5 months)
As a Cashier, I managed a high volume of daily transactions, ensuring exceptional customer satisfaction and operational efficiency. I conducted cash drawer audits and optimized workflows for accurate financial management.
Education
Degrees, certifications, and relevant coursework
Universidad Cenfotec
Technician, Business Analytics
2019 - 2025
Pursuing a degree in Business Analytics Technician with a focus on data analysis and critical thinking. The program emphasizes precision and quality in data handling and problem-solving.
Cisco Networking Academy
Certification, Information Technology
2014 - 2014
Completed IT Essentials program, gaining foundational knowledge in computer hardware and software, networking, and troubleshooting.
OpenOffice
Certification, Office Productivity
2014 - 2014
Achieved certification in OpenOffice Writer, Calc, and Impress, demonstrating proficiency in office productivity software.
Tech stack
Software and tools used professionally
Availability
Location
Authorized to work in
Salary expectations
Social media
Job categories
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