Leonel D.

Key Skills

Software

Other

AWS SageMaker

Data Annotation Tech

iMerit

SuperAnnotate

V7 Labs

Top Subject Matter

AI/ML evaluation support via QA testing and defect validation

software/QA quality assurance

Legal Services & Contract Review

Top Data Types

Document

Image

Audio

Top Task Types

Object Detection

Transcription

Data Collection

Evaluation/Rating

Classification

Prompt + Response Writing (SFT)

Freelancer Overview

Software Tester (QA testing that supports iterative model/system evaluation) — Applause/uTest (Remote, U.S.). Brings 10+ years of professional experience across complex professional workflows, research, and quality-focused execution. Core strengths include Other. Education includes Graduate Certificate, Purdue University (2025). AI-training focus includes data types such as Text and labeling workflows including Evaluation and Rating.

Labeling Experience

Software Tester (QA testing that supports iterative model/system evaluation) — Applause/uTest (Remote, U.S.)

OtherText

Provided QA testing workflows that functionally support AI/ML evaluation cycles by verifying outputs and reporting issues for iterative improvement. Documented observed defects and test outcomes to ensure system behavior met expected specifications. Coordinated with development teams to reproduce problems, validate fixes, and confirm release readiness. • Performed manual and automated testing across web, mobile, and enterprise applications • Used Selenium for automated test execution and regression coverage • Tracked and reported issues in JIRA and TestRail • Used Postman to validate API responses and troubleshoot failures

2017 - Present

Education

Work History