
William Oliveira
Verified Expert in Marketing
Marketing Expert
Maringá - State of Paraná, Brazil
Toptal member since March 27, 2025
William is a passionate localization specialist and linguist with vast experience in game translation and content refinement. He has specialized in culturally adapting games and media for Brazilian audiences. His neurodivergence (autism and giftedness) fuels exceptional pattern recognition and meticulous attention to detail in his translations and AI-models training. William consistently thrives where language precision meets creative adaptation.
Project Highlights
Expertise
- AI Prompt Engeneering
- Education
- Game Localization
- Localization
- Localization Strategy
- Proofreading
- Translation
- Video Animation
Work Experience
AI Trainer and Proofreader
Outlier
- Optimized AI prompts to improve response accuracy.
- Conducted A/B testing on AI outputs, identifying key patterns.
- Trained AI models on Brazilian Portuguese linguistic nuances, enhancing cultural relevance for Portuguese-speaking users.
Teacher
Regina Mundi School
- Designed animated lesson plans that improved student engagement and participation during remote learning.
- Mentored 150+ students for English exams, achieving a 100% pass rate in 2019 and 2021.
- Designed gamified lesson plans that improved student test scores.
Game Localization Specialist
UOL
- Localized game titles for the Brazilian market, increasing player engagement.
- Adapted UI, dialogue, and marketing assets while preserving cultural nuances and reducing player support queries.
- Developed a style guide for Brazilian Portuguese game localization adopted company-wide, standardizing terminology across projects.
- Collaborated with international developers to ensure linguistic accuracy in AAA titles like Sony's Planetside II.
Project History
Animated Lessons During the Pandemic
https://youtu.be/FBjL1JWLv7cTransformed English classes into animated adventures for 8th-9th graders during lockdown, boosting engagement by 40% and turning remote learning into a joyful discovery.
Acanmed
http://acanmed.com.brBuilt a website from scratch, word by word, as a volunteer to help this NGO have a face to show to society.
Their platform is an essential information hub, offering guidance on treatments, legal aspects, and the latest scientific advancements in cannabis medicine. The website was developed to streamline patient access to vital resources, consultations, and community engagement. Through this platform, they connect patients with specialists, provide educational content, and facilitate a seamless experience for those seeking cannabis-based therapies. At Acanmed, they believe in transforming lives through responsible and well-informed medical cannabis use.
Fansub
Collaborated to create subtitles for foreign movies, TV shows, anime, and other video content, becoming a Fansub pioneer in bridging cultures through passionate translation.
This grassroots effort didn't just fill a gap; it pioneered transcreation techniques later adopted by the industry, shaped Brazil's media landscape, and inspired a generation of translators. At a time when much foreign content was inaccessible, fan club culture became the vital bridge between global stories and Brazilian audiences.
Education
Bachelor's Degree in Languages
State University of Maringá (UEM) - Maringá, Brazil
Skills
Core
Narrative Writing, Scriptwriting, Subtitling, A/B Testing, Natural Language Processing (NLP), Marketing, Public Relations (PR), Open Broadcaster Studio (OBS), Copywriting
Platforms & Tools
DeepSeek, Canva
Other
Translation, Proofreading, Localization, Localization Strategy, Game Localization, Content Writing, Creative Writing, Storytelling, AI Prompt Engeneering, Flexibility, User Empathy, Education, memoQ, Crowdin, ChatGPT, Trello, Slack, Wix Studio, Content Localization, Localization Marketing, Creative Problem Solving, Quality Assurance (QA), Data Analysis, Analytical Thinking, Pattern Recognition, Visual Learning Design, Team Leadership, Project Planning, Complex Problem Solving, Website Design, Gamification, English, Languages, User Interface (UI), Video Animation, Recording, Metrics
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