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Hi, I’m David Mazzarri. I’m a senior writer and creative producer with 15+ years of experience crafting story-driven content across video, audio, digital, and branded formats. I translate complex creative work into clear narratives that support brand growth, audience engagement, and commercial goals. I’m an avid collaborator, working with designers, motion teams, creative directors, and global stakeholders in fast-paced, remote environments. In recent years I’ve focused on AI training, TV and game storytelling, and cross-border media ventures that connect Latin American and North American audiences. I thrive at the intersection of craft and strategy, using data-informed pacing, tone calibration, and audience insights to guide development from concept to distribution. I love building scalable writing teams and editorial systems, and I’m comfortable leading multilingual, multicultural projects across the U.S., LATAM, and Europe.…Hi, I’m David Mazzarri. I’m a senior writer and creative producer with 15+ years of experience crafting story-driven content across video, audio, digital, and branded formats. I translate complex creative work into clear narratives that support brand growth, audience engagement, and commercial goals. I’m an avid collaborator, working with designers, motion teams, creative directors, and global stakeholders in fast-paced, remote environments. In recent years I’ve focused on AI training, TV and game storytelling, and cross-border media ventures that connect Latin American and North American audiences. I thrive at the intersection of craft and strategy, using data-informed pacing, tone calibration, and audience insights to guide development from concept to distribution. I love building scalable writing teams and editorial systems, and I’m comfortable leading multilingual, multicultural projects across the U.S., LATAM, and Europe.

David Mazzarri

Writer, Film Director, Film Producer, +4

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Hi, I’m David Mazzarri. I’m a senior writer and creative producer with 15+ years of experience crafting story-driven content across video, audio, digital, and branded formats. I translate complex creative work into clear narratives that support brand growth, audience engagement, and commercial goals. I’m an avid collaborator, working with designers, motion teams, creative directors, and global stakeholders in fast-paced, remote environments. In recent years I’ve focused on AI training, TV and game storytelling, and cross-border media ventures that connect Latin American and North American audiences. I thrive at the intersection of craft and strategy, using data-informed pacing, tone calibration, and audience insights to guide development from concept to distribution. I love building scalable writing teams and editorial systems, and I’m comfortable leading multilingual, multicultural projects across the U.S., LATAM, and Europe.…Hi, I’m David Mazzarri. I’m a senior writer and creative producer with 15+ years of experience crafting story-driven content across video, audio, digital, and branded formats. I translate complex creative work into clear narratives that support brand growth, audience engagement, and commercial goals. I’m an avid collaborator, working with designers, motion teams, creative directors, and global stakeholders in fast-paced, remote environments. In recent years I’ve focused on AI training, TV and game storytelling, and cross-border media ventures that connect Latin American and North American audiences. I thrive at the intersection of craft and strategy, using data-informed pacing, tone calibration, and audience insights to guide development from concept to distribution. I love building scalable writing teams and editorial systems, and I’m comfortable leading multilingual, multicultural projects across the U.S., LATAM, and Europe.

Available to hire

Hi, I’m David Mazzarri. I’m a senior writer and creative producer with 15+ years of experience crafting story-driven content across video, audio, digital, and branded formats. I translate complex creative work into clear narratives that support brand growth, audience engagement, and commercial goals. I’m an avid collaborator, working with designers, motion teams, creative directors, and global stakeholders in fast-paced, remote environments. In recent years I’ve focused on AI training, TV and game storytelling, and cross-border media ventures that connect Latin American and North American audiences.

I thrive at the intersection of craft and strategy, using data-informed pacing, tone calibration, and audience insights to guide development from concept to distribution. I love building scalable writing teams and editorial systems, and I’m comfortable leading multilingual, multicultural projects across the U.S., LATAM, and Europe.

Skills

Copywriting

Experience Level

Copywriting

Expert

Language

English

Fluent

Spanish; Castilian

Fluent

Work Experience

Writer/Producer at NEW NEBULA CONTENT, LLC

April 1, 2015 - Present

Authored the fiction novel 'Aztlan,' developed into a TV series for Legendary Pictures and Apple TV in 2023. Wrote a complete video game script based on the IP, integrating the narrative into an interactive format. Developed the 'Green Gaming' concept, rewarding players for disarming opponents over elimination. Successfully enlisted Alejandro González Iñárritu as director and celebrated Latin American authors to contribute to the project. Co-wrote the pilot 'Wolfy,' a half-hour dramedy about Mozart's struggles as a starving artist in Vienna, engaging Hazy Mills Productions and Sean Hayes for broad audience reach. Co-wrote the horror script 'Two Stars in a Dark Blue Sky,' currently under development in a Spain-Italy production. Created and directed the pilot for a lifestyle and travel show featuring Gustavo Dudamel, developed with Condé Nast (2019) in Los Angeles, with global distribution potential.

Creative Lead / Senior Writer, U.S. & LATAM Expansion at Pocket FM

February 1, 2022 - April 1, 2025

Pioneered the U.S. content division as one of the first American writers, developing long-format serialized audio shows. Scripted the first eight episodes of multiple series and established the narrative framework guiding full-season production. Provided showrunner-level oversight, hiring and mentoring a team of writers to ensure narrative direction, editorial feedback, and tonal cohesion. Wrote and adapted original and localized content across romance, historical romance, fantasy, and mystery for American audiences while preserving global appeal. Generated over $2M in revenue within 18 months and led LATAM expansion with a 60+ localizers, QA frameworks, and cross-cultural quality control. Oversaw distribution growth from one country to six and used data analytics to refine pacing and character development.

Copywriter/Campaign Writer at Talky Hat

September 1, 2024 - February 1, 2025

Developed brand messaging for a novel line of trucker hats and contributed to product design, including material selection and aesthetics. Led a 12-month multimedia campaign, producing over 100 assets across video, audio, and social platforms to boost engagement and brand visibility.

Writer/Producer at Open Studios, LLC

May 1, 2017 - February 1, 2025

Co-writer of the comedy series 'Ikus Rum,' a ghostly romp through New Orleans, currently in development for 2025. Script consultant for the 2026 horror feature 'The Whistler.' Co-wrote the family drama 'Backyards,' developed with Tilted Productions in Los Angeles, with Jenji Kohan attached.

Writer/Director/Producer at Liberman Broadcasting/ Estrella TV, INC

May 1, 2012 - December 1, 2015

Wrote and directed 50 episodes of an investigative fiction TV series broadcast across the US and Latin America. Assisted in editing and sound recording, scouted locations, and served as a field producer directing a diverse crew under budget constraints.

Translator/Interpreter

January 1, 2005 - December 31, 2014

Translated an average of two novels and over thirty feature film scripts per year (over 1.5 million words), expanding the client base by 40% and earning representation by three agencies. Seven years of live interpretation in medical, legal, and court settings, providing bilingual English-Spanish services across multiple fields.

Project Manager at JBI Localization

February 1, 2011 - April 1, 2014

Managed end-to-end localization for movies, video games, and websites, delivering high-quality Spanish content for 50+ projects annually. Directed dubbing sessions for Halo Spanish versions and oversaw client relations and international talent, improving project profitability by 20% and operational efficiency.

Generalist Writer/LLM humor&Tone trainer at MERCOR

September 1, 2025 - Present

Contributed to advanced AI training initiatives by developing system instructions, golden responses, and structured annotations to refine large language model writing capabilities. Designed and authored high-quality prompt-response pairs to train AI systems in narrative structure, tone calibration, clarity, and stylistic consistency. Led a specialized humor-focused training project, rewriting AI outputs to enhance wit, timing, and tonal nuance while defining contextual boundaries for appropriate humor use. Provided editorial oversight on model outputs, identifying linguistic inconsistencies and improving coherence, voice alignment, and user engagement. Applied structured evaluation frameworks to assess response quality, ensuring alignment with user intent, brand tone, and contextual sensitivity. Collaborated in iterative feedback cycles to improve model performance across creative, conversational, and instructional use cases.

Creative Lead / Marketing Lead/ Writer at Pocket FM, US & LATAM Division

February 1, 2022 - April 1, 2025

Pioneered the U.S. content division as one of the first three American writers, writing, producing, and launching long-format serialized audio shows. Led LATAM expansion by overseeing content localization and building and managing a team of 60+ writers and localizers. Led Spanish-language copyright across the entire app experience, including all show promos and in-app marketing copy. Personally scripted the first eight episodes of multiple series and established narrative frameworks that guided full-season production. Provided showrunner-level oversight by hiring and managing writing teams, delivering story direction, editorial feedback, and ensuring tonal and structural consistency across shows. Wrote and adapted original and localized content across romance, historical romance, fantasy, and mystery genres, tailoring narratives for U.S. audiences while preserving global appeal. Drove strong commercial performance, with shows generating $2M+ USD in revenue within 18 months. Implemented

Copywriter/Campaign Writer at Talky Hat

February 1, 2025 - September 1, 2025

Developed brand messaging and crafted 200 engaging, interchangeable messages for a novel line of trucker hats designed to foster connections among wearers. Contributed to product design by collaborating on material selection, aesthetic elements, and overall market positioning to enhance appeal and user engagement. Led the development of a 12-month multimedia campaign, creating over 100 assets—including video, audio, and social media content—optimized for all platforms to drive high engagement and brand visibility.

Independent Translator/Interpreter

January 1, 2005 - December 31, 2014

Translated an average of two novels and over thirty feature film scripts per year (1.5 million words), ensuring linguistic accuracy and cultural relevance between English and Spanish. Expanded client base by 40% and secured representation by three agencies. Accumulated 7 years of experience as a live interpreter in medical, legal, and court settings, specializing in bilingual English-Spanish services.