I’m a freelancer who specializes in audio production, podcast editing, sound design, and mixing & mastering, working remotely with startups, agencies, and content teams worldwide. I help clients turn raw audio into clear, professional, and release-ready content. My core strengths are audio cleanup, dialogue editing, sound design, and mixing for digital platforms. I’m highly organised, reliable, and used to working independently while communicating clearly with clients and stakeholders. What differentiates me from other freelancers is my combination of technical audio skills, attention to detail, and a strong service mindset — I focus on making the process smooth, efficient, and results-driven for my clients.

Axel Agustin Martinez

I’m a freelancer who specializes in audio production, podcast editing, sound design, and mixing & mastering, working remotely with startups, agencies, and content teams worldwide. I help clients turn raw audio into clear, professional, and release-ready content. My core strengths are audio cleanup, dialogue editing, sound design, and mixing for digital platforms. I’m highly organised, reliable, and used to working independently while communicating clearly with clients and stakeholders. What differentiates me from other freelancers is my combination of technical audio skills, attention to detail, and a strong service mindset — I focus on making the process smooth, efficient, and results-driven for my clients.

Available to hire

I’m a freelancer who specializes in audio production, podcast editing, sound design, and mixing & mastering, working remotely with startups, agencies, and content teams worldwide.

I help clients turn raw audio into clear, professional, and release-ready content. My core strengths are audio cleanup, dialogue editing, sound design, and mixing for digital platforms. I’m highly organised, reliable, and used to working independently while communicating clearly with clients and stakeholders. What differentiates me from other freelancers is my combination of technical audio skills, attention to detail, and a strong service mindset — I focus on making the process smooth, efficient, and results-driven for my clients.

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Experience Level

Expert
Expert
Expert
Expert
Intermediate

Language

Spanish; Castilian
Fluent
English
Advanced

Work Experience

Live Sound Technician at Casa Temple
January 1, 2024 - Present
Live sound technician for concerts and live events, substitute operator. Responsible for operating live sound during shows, including stage setup, microphone placement, signal routing, FOH operation, and real-time troubleshooting to ensure consistent sound quality and smooth technical execution.
Audio Producer and Post-Production at Self-employed
March 1, 2020 - Present
Audio producer specializing in recording, editing, mixing, and mastering for independent projects from a private studio, with on-site and remote delivery. Strong focus on vocal production, critical listening, and release-ready, sonically balanced mixes.
Independiente / Freelance Audio Production Workshop Instructor at Independiente / Freelance
January 1, 2020 - Present
Audio production workshop instructor. Led recording fundamentals, audio workflow, critical listening, and practical music production through hands-on sessions. Initially taught at CC Maleza (2020–2021) and continues independently.
Live Sound Technician / FOH Operator at El Emergente
April 1, 2023 - July 1, 2025
Live sound technician at El Emergente, responsible for operating live sound for concerts and events, including stage setup, microphone placement, signal routing, FOH operation, and live troubleshooting to ensure clear, balanced sound and smooth performances.
Live Sound Technician / Technical Coordinator at CC Maleza
September 1, 2016 - August 1, 2022
Live sound technician and Technical Coordinator at CC Maleza. Managed technical equipment, organized technical riders, coordinated setups, and operated live sound for events; acted as Technical Coordinator 2020–2022.
Radio Operator at EQRadio
March 1, 2018 - August 1, 2021
Hands-on experience operating live radio broadcasts, including live sound, microphones, signal routing, and on-air coordination in live broadcast environments.
Workshop Instructor at Independiente / Freelance
January 1, 2020 - Present
Audio production workshop instructor, active since 2020. Led workshops focused on recording fundamentals, audio workflow, critical listening, and practical approaches to music production through practical sessions.
Live Sound Technician / Technical Coordinator at Freelance / Various venues
September 1, 2016 - August 1, 2022
Live sound technician with experience since 2016 across different independent venues and cultural spaces. Between 2020 and 2022, served as Technical Coordinator at CC Maleza, responsible for managing technical equipment, organizing technical riders, coordinating setups, and operating live sound for events.

Education

Bachelor's degree in Electronic Arts at Universidad Nacional de Tres de Febrero
January 11, 2030 - August 1, 2017
Bachelor's degree at Universidad Nacional de Tres de Febrero
August 1, 2017 - December 22, 2025

Qualifications

Add your qualifications or awards here.

Industry Experience

Media & Entertainment, Professional Services
    paper Mixing & Mastering for Digital Releases (Clean, Professional Sound)

    I provide professional mixing and mastering for songs, branded content, podcasts with music, and audio projects intended for digital release.

    This service is ideal for startups, agencies, and independent creators who want their audio to sound polished, balanced, and competitive across all major platforms.

    What I can help you with:

    Full mix of music or audio projects (EQ, compression, dynamics, balance)

    Vocal clarity and presence

    Stereo enhancement and depth

    Mastering for streaming platforms (Spotify, Apple Music, YouTube, social media)

    Loudness optimization and export to industry standards

    I focus on clarity, translation, and consistency, making sure your audio sounds great on headphones, speakers, laptops, and mobile devices.

    What’s included in this starter offer:

    Mixing and mastering of one track or audio piece

    Up to ~4 minutes of final content

    Three revision included

    Delivery of high-quality WAV + MP3 files

    Flat rate: $90 USD

    This offer is designed as a first collaboration to deliver professional results quickly and build long-term working relationships.

    If you’re looking for a reliable mixing and mastering engineer who communicates clearly and delivers on time, I’d be happy to help.

    paper Custom Sound Design & Audio Effects for Video/Game

    I provide custom sound design and audio enhancement for videos, ads, social media content, presentations, and digital products.

    This service is ideal for startups, agencies, and content teams who want their projects to sound professional, engaging, and emotionally effective — without needing a full in-house audio team.

    What I can help you with:

    Custom sound design for video, animation, or digital content

    Creation and integration of sound effects (SFX), foley, and ambience

    Audio cleanup and dialogue enhancement

    Balancing and mixing music, voice, and effects

    Improving clarity, impact, and overall listening experience

    I focus on clarity, storytelling, and usability, making sure the audio supports your message instead of distracting from it.

    What’s included in this starter offer:

    Sound design and audio enhancement for one short project

    Up to ~60 seconds of finished content

    Clear communication and fast turnaround

    One revision included

    Flat rate: $70 USD

    This starter project is designed to create a smooth first collaboration and build long-term working relationships.

    If you’re looking for a reliable audio partner who understands both creative and technical needs, I’d be happy to work with you.

    paper Podcast & Spoken Audio Editing for Startups and Agencies (Fast & Reliable)

    I provide clean, professional audio editing for podcasts, interviews, and spoken-word content.

    This service is ideal for startups, agencies, and content teams who want their audio to sound clear, polished, and ready for publication without hassle.

    What I can help you with:

    Podcast editing (dialogue cleanup, pacing, silence removal)

    Noise reduction, de-essing, EQ, compression

    Leveling to broadcast / platform standards

    Intro/outro placement

    Audio optimization for Spotify, Apple Podcasts, YouTube, and social media

    I work efficiently, communicate clearly, and focus on delivering consistent, high-quality results.

    Starter Offer (to build long-term collaborations):

    Editing of one podcast episode or spoken audio piece

    Up to ~30 minutes of raw audio

    Fast turnaround

    $50 flat rate

    If you’re looking for a reliable audio partner to support your content production, I’d be happy to help.