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Hi, I’m Jeff Keiler, a freelance audio engineer and sound designer based between New York City and Los Angeles. I partner with creators, brands, and media teams to produce sound driven content and immersive audio experiences across broadcast, digital, podcasts, and interactive formats. My work spans high-visibility projects for HBO, Netflix, Apple+, ESPN, MTV, Discovery, ABC, and NBC, with a focus on clarity, consistency, and creative storytelling.…Hi, I’m Jeff Keiler, a freelance audio engineer and sound designer based between New York City and Los Angeles. I partner with creators, brands, and media teams to produce sound driven content and immersive audio experiences across broadcast, digital, podcasts, and interactive formats. My work spans high-visibility projects for HBO, Netflix, Apple+, ESPN, MTV, Discovery, ABC, and NBC, with a focus on clarity, consistency, and creative storytelling.

Jeff Keiler

Sound Designer, Audio Engineer, Mixing Engineer, +3

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Hi, I’m Jeff Keiler, a freelance audio engineer and sound designer based between New York City and Los Angeles. I partner with creators, brands, and media teams to produce sound driven content and immersive audio experiences across broadcast, digital, podcasts, and interactive formats. My work spans high-visibility projects for HBO, Netflix, Apple+, ESPN, MTV, Discovery, ABC, and NBC, with a focus on clarity, consistency, and creative storytelling.…Hi, I’m Jeff Keiler, a freelance audio engineer and sound designer based between New York City and Los Angeles. I partner with creators, brands, and media teams to produce sound driven content and immersive audio experiences across broadcast, digital, podcasts, and interactive formats. My work spans high-visibility projects for HBO, Netflix, Apple+, ESPN, MTV, Discovery, ABC, and NBC, with a focus on clarity, consistency, and creative storytelling.

Available to hire

Hi, I’m Jeff Keiler, a freelance audio engineer and sound designer based between New York City and Los Angeles. I partner with creators, brands, and media teams to produce sound driven content and immersive audio experiences across broadcast, digital, podcasts, and interactive formats.

My work spans high-visibility projects for HBO, Netflix, Apple+, ESPN, MTV, Discovery, ABC, and NBC, with a focus on clarity, consistency, and creative storytelling.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Language

English

Fluent

Work Experience

Audio Model Trainer at Mercor

July 30, 2025 - December 30, 2025

● Evaluated and ranked hundreds of multimodal AI outputs daily, including audio, voice, image, and video generations, to assess model performance, quality, and alignment with prompt intent ● Applied systematic comparative judgment techniques to assess voice clarity, timbre, coherence, realism, and overall output quality across diverse generative scenarios ● Maintained high accuracy and throughput within large-scale preference-ranking workflows, contributing to reliable training data for model fine-tuning and optimization ● Collaborated with cross-functional AI and research teams to surface quality trends and deliver actionable feedback for improving multimodal generative systems ● Used specialized annotation and evaluation platforms while adhering to detailed guidelines supporting preference-based reinforcement learning from human feedback (RLHF)

Audio Engineer & Sound Designer at Freelance

April 1, 2019 - Present

Work directly with creators, brands, and media teams as a hands-on audio partner supporting voice-driven content and audio production workflows. Clean, edit, repair, and prepare dialog and voice recordings for broadcast, digital, podcast, and immersive use. Shape vocal tone, clarity, performance nuance, and consistency across long-form and short-form projects. Create and iterate on custom sound treatments, vocal processing chains, and audio outputs tailored to creative goals. Support clients through technical guidance, best practices, and workflow recommendations. Maintain organized session structures and fast turnaround delivery in time-based service environments.

Audio Engineer at Radical Media

February 28, 2010 - February 28, 2019

● Engineered dialogue, voice over, and sound design for major creators, directors, and media brands ● Collaborated directly with clients, producers, editors, and creative teams to refine vocal performance and narrative clarity ● Delivered polished audio assets across film, broadcast, digital, and mobile platforms ● Supported scalable post-production workflows across high-volume, high-visibility projects ● Clients included HBO, Netflix, Apple+ , ESPN, MTV, Discovery, ABC, and NBC