
Professional audio engineer, sound designer and music composer with credits in Hollywood trailer music scene, tv documentaries, art installations, video games and advertising.
Placements on Disney+ (Star Wars: The Mandalorian), Netflix (Rhythm + Flow), Paramount+ (Chopper Cops). Trailer-music releases through Really Slow Motion, Giant Apes Music, and BMG Production Music.
12 years in the industry as a composer and a mixing engineer, so I can run the full pipeline (compose → arrange → record → mix → master) under one roof if your project wants both creative and technical handled together.
How I work: short call to hear what you're after, 1–2 reference cues from past projects in your direction, then we agree on scope and price. No starting-at gotchas, no surprise revision fees.
— Showreel + full credits: binarysound.pro
— SoundCloud: https://on.soundcloud.com/aGk2pJW4YAj7m2Gj9
Latest mixing work: https://open.spotify.com/album/7wnheIH7QQscDOyb0gYDOL?si=013b29ce055249ac
Contact me through the green button above and let's get to work.
Endorse Mark Helder4 Reviews - 1 Repeat Client
check_circleVerifiedMark was super responsive, easy to work with and most importantly made my mix sound great! Would recommend and will use again.
check_circleVerifiedMark did a great job mixing my hybrid orchestral track. It sounds big, clear and more natural which is something I wouldn't have been able to accomplish mixing it myself. Mark was also very professional and I would definitely hire him again for other projects.
check_circleVerifiedFirst time using this service and I was a bit skeptical however after meeting Mark I was instantly comforted by his level of professionalism and guidance. I thoroughly appreciated his advice and feedback on my tracks making me rethink how I arrange/compose/mix for the industry. Then after receiving my mastered track I was blown away on how he brought the track to life! Individual instruments were a lot clearer, had their own space & more power & punch to my hits. Thanks again, Mark

Mark was easy to work with and provided me with an excellent mix on my tracks. Great job!
Interview with Mark Helder
Q: Analog or digital and why?
A: Doesn't matter, as long as the right person is behind the wheel.
Q: What do you like most about your job?
A: A way to contribute to something bigger than yourself.
Q: What advice do you have for a customer looking to hire a provider like you?
A: You don't have to speak 'musician's language' to get your point and vision across. Just describe the emotional context and provide a couple of clear references to ensure success.
Q: Can you share one music production tip?
A: Divide and conquer: split a challenging task into smaller steps and methodically complete them one-by-one.
Q: What's your typical work process?
A: Share your client's vision. Research the subject. Apply your own experience. Iterate until the job is done.
- Mixing EngineerContact for pricing
- Sound DesignContact for pricing
- Film ComposerContact for pricing
- Composer OrchestralContact for pricing
- Post EditingContact for pricing
- Post MixingContact for pricing
- Beat MakerContact for pricing
Revisions: 3 rounds included. Beyond that, 20% of project fee per round - I'd rather we nail the brief upfront than rack up revision fees.
- John Williams
- Hans Zimmer
- Two Steps from Hell



