Sound Engineer with 5 years of experience at Iyuno Barcelona, working across all departments of professional dubbing post-production. I now run my own home studio, offering freelance services in sound design, mixing & mastering, and audio repair for multimedia projects. Beyond audio, I have a working knowledge of video editing, basic design, and AI tools for content generation — which allows me to approach projects with a broader creative and technical perspective.

Luis Costa Alvarez

Sound Engineer with 5 years of experience at Iyuno Barcelona, working across all departments of professional dubbing post-production. I now run my own home studio, offering freelance services in sound design, mixing & mastering, and audio repair for multimedia projects. Beyond audio, I have a working knowledge of video editing, basic design, and AI tools for content generation — which allows me to approach projects with a broader creative and technical perspective.

Available to hire

Sound Engineer with 5 years of experience at Iyuno Barcelona, working across all departments of professional dubbing post-production. I now run my own home studio, offering freelance services in sound design, mixing & mastering, and audio repair for multimedia projects.

Beyond audio, I have a working knowledge of video editing, basic design, and AI tools for content generation — which allows me to approach projects with a broader creative and technical perspective.

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Experience Level

Expert
Intermediate
Intermediate
Intermediate

Language

Spanish; Castilian
Fluent
English
Intermediate
Galician
Fluent

Work Experience

Sound Mixer at Iyuno Barcelona
February 7, 2023 - March 1, 2024
Dubbing sound engineer for 2.0 and 5.1 localization mixing projects
Media Services & Multimedia Technician
January 1, 2021 - December 31, 2023
Provided media services and multimedia support for projects
Recording & Editing Technician
January 1, 2019 - December 31, 2021
Recording and editing for audio and video projects

Education

Diploma in "Audio Production" at SAE Institute, Barcelona
September 11, 2015 - September 20, 2017
Bachelor of Arts in "Audio Production" at Middle Sex University
September 25, 2017 - March 25, 2026

Qualifications

Add your qualifications or awards here.

Industry Experience

Media & Entertainment, Professional Services
    paper Iyuno Barcelona

    5 years working at Iyuno Barcelona, one of the leading multinational post-production companies in the audiovisual industry. During this time I collaborated on projects for major clients including HBO, Netflix, Disney, Warner, Paramount, Universal, TV3, and Mediaset, among others.

    My work covered the full dubbing pipeline for Spanish localization of series and films: recording, editing, and mixing dialogue for broadcast and streaming delivery.

    Alongside audio, I also worked as a multimedia technician, managing studio logistics, handling material intake and deliverable distribution, performing audio quality control checks, and ensuring loudness standardization for broadcast TV standards.

    paper Audio Solutions for Multimedia

    A personal portfolio and self-study space built around professional audio production for visual media.
    I’m a freelance sound engineer with 5 years of experience in the dubbing industry, specializing in delivering high-quality audio across every stage of post-production.

    My work spans sound design, mixing and mastering, and audio repair, covering the full pipeline from raw recordings to polished, broadcast-ready output. This project documents my ongoing practice: the tools I use, the techniques I refine, and the standards I hold my work to.

    Check out my website:
    https://www.twine.net/signin

    paper Fiverr

    My Fiverr profile as a freelance sound engineer, offering professional post-production services for multimedia projects. Services include sound design, mixing & mastering, and custom AI voice.

    All gig videos and audio samples featured on the profile are original work, redesigns and repairs done throughout my freelance career.

    Check out my profile:
    https://www.twine.net/signin