Senior Quality Assurance Engineer with extensive experience in software testing and AI/ML data workflows. Proficient in Agile methodologies and the Software Development Life Cycle (SDLC). Strong background in manual testing, data validation, and language-based AI projects, including annotation, transcription, and ASR post-editing. Bilingual in Portuguese and English, with strong communication skills and proven ability to collaborate across diverse teams.

Eliana O'Brien

Senior Quality Assurance Engineer with extensive experience in software testing and AI/ML data workflows. Proficient in Agile methodologies and the Software Development Life Cycle (SDLC). Strong background in manual testing, data validation, and language-based AI projects, including annotation, transcription, and ASR post-editing. Bilingual in Portuguese and English, with strong communication skills and proven ability to collaborate across diverse teams.

Available to hire

Senior Quality Assurance Engineer with extensive experience in software testing and AI/ML data workflows. Proficient in Agile methodologies and the Software Development Life Cycle (SDLC). Strong background in manual testing, data validation, and language-based AI projects, including annotation, transcription, and ASR post-editing. Bilingual in Portuguese and English, with strong communication skills and proven ability to collaborate across diverse teams.

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Experience Level

Expert
Expert
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
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Language

Portuguese
Fluent
English
Fluent
Spanish; Castilian
Intermediate

Work Experience

Senior Quality Assurance – AI Content Reviewer at Babel Audio
December 1, 2024 - Present
Perform manual QA and content review for Portuguese and English audio data used in AI/ML training; conduct transcription and ASR post-editing to ensure accuracy and quality; evaluate audio clarity, linguistic accuracy, and adherence to guidelines; annotate and validate data sets to support AI model performance; provide feedback to improve data quality and overall results.
Senior Quality Assurance Developer at Capital Rx
March 1, 2021 - July 1, 2024
Led QA strategy and execution with Agile Scrum teams; participated in Agile ceremonies and collaborated with cross-functional teams; performed front-end and back-end testing, including exploratory testing; managed defect tracking, prioritization, and resolution; supported automation framework implementation and testing processes; ensured delivery of high-quality software across multiple projects.
Software Test Engineer at Fluidra
September 1, 2019 - February 1, 2021
Executed test planning, design, and defect tracking; tested IoT mobile applications on iOS and Android devices; created and executed test cases based on user stories; collaborated with teams and supported customer service issues.
Product Engineer at Esri
June 1, 2011 - May 1, 2019
Developed and maintained testing frameworks and tools; performed manual and automated testing for web applications; analyzed requirements and improved system performance and stability; monitored test results and collaborated on issue resolution; participated in design reviews and provided QA insights.
QA Engineer at Sony Electronics
August 1, 2007 - April 1, 2011
Performed system integration and manual testing on TV hardware/software; executed black-box testing and validated UI functionality; identified, reported, and verified defects; developed and maintained test cases and test documentation.

Education

Bachelor's Degree in Languages at Centro Universitário de Brasília
January 11, 2030 - April 30, 2026

Qualifications

Certified Scrum Master
January 11, 2030 - April 30, 2026

Industry Experience

Media & Entertainment, Software & Internet, Professional Services