Optinervear Studio, operating from Switzerland, offers 18 years of experience in the audio industry. Every project is handled personally by Giorgio Ortelli. We offer...
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Optinervear Studio, operating from Switzerland, offers 18 years of experience in the audio industry. Every project is handled personally by Giorgio Ortelli. We offer...
See MoreI am a musician, sound engineer, and audio technician with over 10 years of experience in mixing, sound design, and music production. My work spans live performances, the...
See MoreHi, I’m Ian Guaypacha, a freelance sound technician and music producer focused on helping artists bring their ideas to life through professional recording, mixing, and ma...
See MoreDynamic and skilled Mixing/Mastering/Audio Engineer with 10+ years of experience in recording studios, live sound environments, and post-production settings. Proficient i...
See MoreI am Stefan Hunter, a Mixing- and Mastering Engineer, graduated at the Mastering Academy. I started at mixing lots of live venues, later I focussed at recording, mixing ...
See MoreI'm a Swiss music composer and songwriter affiliated to ASCAP specialized in emotional cinematic hybrid orchestral music. Very versatile and fast understanding, I work on...
See MoreIch bin Noah Bührer, Audio Engineer (B.A.) mit Fokus auf Post-Production und Sound Design. Seit mehreren Jahren arbeite ich freiberuflich als Musiker und Audio-Producer u...
See MoreSKINNY STYLUS Hailing from Zurich South-West, Skinny Stylus has been rapping since the age of 13. His sound was originally shaped by American influences like The Cool ...
See MoreI’m a versatile freelancer specializing in audio and video production, as well as creative content creation. As a Video Editor, Audio Engineer, and Sound Designer, I brin...
See MoreI’m a certified music engineer and producer from Abbey Road Institute Paris, with a deep passion for crafting high-quality, immersive sound. Over the years, I’ve built...
See MoreFrench Dude Living in Switzerland Producing Music since 2020
See MoreWith over ten years of experience in audio engineering and media production, I am able to guarantee a high standard of quality for artists, organizers, and audiences, bot...
See MoreWe have over 14,500 Mastering Engineers who've worked in many different industries and cover various styles and skillsets.
Start your searchDevelopment specialisms and the cross-functional roles you'll often hire alongside.
Reviews
“AJ was great to work with from our very first consultation. He took the time to understand my project, offered thoughtful feedback, and answered all of my questions thoroughly. He even put together a quick demo of one of my songs to help explore the direction we could take, which I really appreciated. I felt confident in...”
Edward @ Author
Jul 19, 2026
“Fantastic DJ to work with! He always delivers catchy, modern, high-energy mixes, even on short notice. He is quick to make adjustments, thinks creatively, and creates personalized mixes that perfectly match our dance style. Highly recommended!”
Alieke @ Capital-D
Jul 13, 2026
“TÉMOIGNAGE Titre du projet : "For You" Je recommande vivement VIDAH ON THE BEAT pour son professionnalisme et la qualité de son travail. Sur le titre "For You", il a réalisé un mix clair et équilibré où chaque élément trouve sa place. Le mastering est parfait : puissant, agréable à l’écoute et rendu pro sur tous...”
Gatien @ KAIZEN Records
Jul 12, 2026
“Our first and best producer.”
Gringo @ Motel Montpellier
Jul 6, 2026
“Fantastic experience from start to finish. The level of passion, creativity, and attention to detail really came through in every part of the project. Communication was excellent throughout, with quick responses, great ideas, and a genuine commitment to delivering the best possible result. The sound design, music...”
Stuart @ Glitchedtones
Jul 6, 2026
“you can just copy n past this: Over the last 5 years, I’ve had the absolute pleasure of working with Tom Crandles on my solo EP Paradise Lost and my upcoming album. Tom has been the mixer, recording engineer, and producer throughout this process, as well as a supportive co-writer on several tracks. He has also...”
Aleesha @ Aleesha Dibbs
Jul 3, 2026

Clients Rate Twine Mastering Engineers 4.95 / 5.0
on average across 767767 reviews
3–5 minutes. Tell us about your project, your timeline, and how you want experts to contact you.
Within 24 hours, you'll see a shortlist of vetted Mastering Engineers matched to your project.
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Transparent rates, no hidden markup, and a payment path for every need.
Agencies bury a 20–40% markup inside the retainer, you never see it. On Twine, you set the price and you see the platform fee as a separate, explicit line. No surprises at checkout.
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Funds are held in escrow and only released when you approve the deliverables. If the work isn't right, your money doesn't move. 10% commission on payments up to $10,000, just 5% on anything above.
Pick the role, the experience level and how long you need. We’ll show you what similar projects have cost on Twine. It’s a guide, not a quote.
Estimates only. Actual budget is set by you and agreed with your expert before any work begins.
ESTIMATED RANGE
CHF4,900 – CHF13,500
Full possible range for a mid-level Mastering Engineer over 2–4 weeks
Common questions answered before you post a project.
A Mastering Engineer is a skilled audio professional responsible for the final stage of music production. Their primary role involves preparing and transferring recorded audio from a source to a data storage device, ensuring the best possible sound quality. They use specialized software and equipment to equalize, compress, and enhance tracks, ensuring consistency across an album or project. Mastering Engineers also manage loudness levels and format the audio for various distribution methods, including streaming platforms, CDs, and vinyl. By applying their expertise, they ensure that the music sounds its best on all playback systems, enhancing the overall listener experience.
Exceptional Mastering Engineers possess a unique set of qualities that elevate their work. Key attributes include:
These qualities contribute to producing polished, professional-sounding music that resonates with listeners.
Typical day rates for Mastering Engineers in Switzerland vary by experience level:
These are indicative ranges based on Twine project data. Final budgets depend on project scope and are agreed directly with your freelancer.
To recognize the perfect Mastering Engineer for your needs, start by reviewing their portfolio and previous work samples. Look for versatility across different genres and a consistent quality of sound. Client testimonials and reviews can provide insights into their reliability and communication skills. Schedule initial consultations to discuss your project, allowing you to gauge their enthusiasm and understanding of your vision. Ask about their mastering process and tools they utilize, as well as their experience with similar projects. Ultimately, the right engineer should resonate with your creative direction and deliver high-quality results.
When interviewing a Mastering Engineer, consider asking the following key questions:
These questions will help you understand their approach, capabilities, and compatibility with your project requirements.
To hire a Mastering Engineer in Switzerland, start by defining your project requirements and budget. Utilize platforms like Twine to find skilled professionals. Create a detailed job post that outlines the scope of work, deadlines, and any specific skills or experience desired. Consider reviewing portfolios and client feedback to gauge the quality of their work. Engage potential candidates in conversation to assess their understanding of your project and creative vision. Finally, ensure that you set clear communication channels to facilitate a smooth collaboration throughout the project.
Hiring a freelance Mastering Engineer offers direct access to individual talent, often leading to more personalized communication and a potentially lower cost. Freelancers typically have flexible schedules and can adapt quickly to changes in project scope. In contrast, working with an agency provides a team of professionals, ensuring a wider range of expertise and resources. Agencies often manage multiple projects simultaneously, which can lead to more structured processes and accountability. However, they may come with higher costs and less direct communication. Consider your project needs and budget when deciding between the two options.
A well-crafted project brief for a Mastering Engineer should include:
Providing these details will help attract the right Mastering Engineer for your project.
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