MUMMello User
@mmellovoice
Voice AI specialist blending acting expertise with AI data skills.
BrazilWhat I'm looking for
I am a multidisciplinary Voice AI Specialist with 20+ years in acting, voiceover, and stage direction, now focused on AI voice data, prompt engineering, and model evaluation. I bring a rare combination of expressive performance skill and rigorous annotation and QA experience.
I have delivered 1000+ tasks with top ratings on global platforms and currently work on voice data collection, semantic annotation, prompt rewriting, and AI output testing for TTS/STT and LLM projects. My technical toolkit includes Audacity, Descript, Logic, Pro Tools, Notion and Trello, enabling high-quality remote delivery.
Fluent in English and native Portuguese, with intermediate Spanish, French and Italian, I offer cross-cultural language sensitivity ideal for multilingual QA, speech synthesis, and conversational AI fine-tuning. I consistently exceed quality standards and perform reliably under real-time project demands.
Experience
Work history, roles, and key accomplishments
Voice AI Specialist
Outlier
May 2025 - Present (7 months)
Deliver expressive voice recordings, prompt engineering, semantic annotation, and AI output evaluation for TTS/STT projects, maintaining high QA standards across multilingual tasks.
Stand-Up Comedian
Comédia Sem Lei
Jan 2021 - Present (4 years 11 months)
Created and produced a recurring comedy show with 350+ live performances across 8 cities, managing production, hosting, and operations since 2021.
Professional Voiceover Artist
ArtFrames
Jan 2020 - Present (5 years 11 months)
Provided commercial and political campaign voiceover work and character voice performances since 2020, delivering high-quality recordings for broadcast and digital use.
Head of Stage / Resident Producer
Rio Retro Comedy Club
Jan 2023 - Dec 2024 (1 year 11 months)
Produced and managed over 440 shows in six months, overseeing programming, stage operations, and production logistics to ensure consistent event delivery.
Sound Technician & Stage Manager
Marella Discovery 2 (TUI UK)
Jan 2019 - Dec 2019 (11 months)
Managed sound, lighting, and show playback for a 900-seat theater across 72 shows/month, handling QLab4, LED, and FX systems for cruise ship productions.
Technical & Stage Director
Freelance Theater Festivals
Jan 2015 - Dec 2016 (1 year 11 months)
Directed technical staff and managed logistics for festivals and theater productions, coordinating crews of 100+ and ensuring technical delivery for multi-day events.
Education
Degrees, certifications, and relevant coursework
Clarisse Pietro (Vocal Studio)
Certificate, Vocal Training
2016 - 2017
Undertook vocal training focused on voice technique, expression, and performance for stage and recording.
Grand Cirque du Messiê / Marcio Libar
Certificate, Clowning / Physical Theatre
2015 - 2015
Completed training in clowning performance techniques and physical theatre.
Harman Brazil
Certificate, Sound Engineering
2013 - 2013
Attended sound engineering training covering professional audio systems and live sound practices.
Hélio Alonso College
Bachelor, Music Production
2005 - 2008
Bachelor-level studies in Music Production covering audio recording, production, and studio practices.
IATEC
Certificate, Audio Engineering
2006 - 2006
Completed a course on audio for studio and location focusing on recording techniques and on-site audio capture.
FACHA - Faculdade de Humanidades and Artes (FACHA)
Certificate, Music Production
2003 - 2003
Completed a Music Production & Home Studio course focused on music production fundamentals and home studio workflows.
Rob Mayzes (UK)
Certificate, Audio Production / DAW Training
Completed advanced training in Logic Pro X and Pro Tools for professional audio production and editing.
Tech stack
Software and tools used professionally
Availability
Location
BrazilAuthorized to work in
Social media
Job categories
Skills
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