Open to opportunities

André Pereira

@andrpereira

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Generative AI trainer and data annotator with strong linguistic and technical skills.

Brazil

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What I'm looking for

I want a role in AI focusing on data annotation, speech/text evaluation, and multilingual model improvement within a collaborative, quality-driven team.

I am a Generative Artificial Intelligence trainer with hands-on experience curating, annotating, and evaluating voice and text datasets to improve AI models.

I have worked on speech quality evaluation, dialogue flow testing, accent and language adaptation, and bias and quality control for international projects, applying linguistic expertise and domain knowledge to ensure accurate, natural, and culturally appropriate outputs.

My background includes roles at Firstsource, RWS Group, and Welocalize, plus experience in technical support, traffic management, translation, and Java internships; I combine technical training (Python, Java, HTML/CSS/JavaScript, databases, cloud infrastructure) with advanced English proficiency.

I seek to contribute to AI teams focused on high-quality data, multilingual systems, and responsible model evaluation, bringing attention to detail, cross-cultural sensitivity, and consistent delivery of labeled, well-curated datasets.

Experience

Work history, roles, and key accomplishments

Monitor / Assistant Teacher

Speech Language School

Apr 2019 - Dec 2020 (1 year 8 months)

Assisted students with English learning difficulties and substituted for teachers, providing targeted tutoring and classroom support.

Communication

Generative AI Trainer

RWS Group

Reviewed, tagged, and structured multimodal data; evaluated AI-generated content for accuracy and cultural appropriateness; performed bias detection and task-specific training for improved model outputs.

Data Annotation Content Evaluation Quality Control Translation Refinement Sentiment Analysis Task Specific Training

Technical Support Specialist

Mondo Internet Provider

Provided technical support to customers, diagnosing and resolving internet service issues to maintain uptime and customer satisfaction.

Technical Support Troubleshooting Customer Service Ticketing Systems

Generative AI Trainer

Firstsource

Curated and annotated voice datasets, evaluated speech quality and conversational flows, and trained models to handle regional accents and multilingual patterns for generative AI applications.

Data Annotation Speech Quality Evaluation & QA

Translator

BFA Language School

Translated technical documents between English and Portuguese, ensuring accuracy and domain-appropriate terminology.

Translation Portuguese Technical Translation Editing

Administrative Intern

FACIC

Managed student data entry and supported administrative systems to maintain accurate academic records.

Data Entry Student Records Administrative Support Database Management Attention To Detail

Ads Quality Rater

Welocalize

Reviewed and graded internet advertisements to improve ad delivery relevance and quality for end users.

Ads Evaluation Quality Content Review Search Relevance Data Labeling Attention To Detail

Traffic Manager

Objective Operations

Coordinated timely and accurate distribution of media content across networks, managing workflows to meet delivery schedules and quality requirements.

Distribution Scheduling Content Management Quality Assurance

Java Intern

Bioma Ambiental

Developed Java-based solutions and supported software tasks during internship, contributing to application development and maintenance.

Java Software Development Debugging Object Oriented Programming Version Control

Education

Degrees, certifications, and relevant coursework

Graduate Course (Specialization) Translation English to Portuguese, Portuguese to English

Graduate Specialization, Translation / Linguistics

2021 - 2022

Completed a specialization course in translation between English and Portuguese from December 2021 to May 2022.

College degree in Analysis and Systems Development

College degree, Analysis and Systems Development

2018 - 2020

Completed a college degree program in Analysis and Systems Development focused on software and systems concepts from 2018 to 2020.

FACIC – Faculdade de Ciências Humanas de Cruzeiro

Internship, Administration / Student Services

Completed internship duties assisting with student data entry into the FACIC administrative system.

Various professional courses (Cybersecurity, Cloud, Programming, Web)

Professional / Short Courses, Information Technology

Completed multiple relevant short courses including COBOL in Mainframe, Cybersecurity Essentials, Cloud Infrastructure and Services, Python 3 basics, Java OOP, PHP, HTML5/CSS/JavaScript, and IT infrastructure topics.