Join Antescofo

Help Musicians enjoy Playing Music

Antescofo is a Paris-based Mobile company, revolutionalizing amateur music practice thanks to its unique and award-winning technology. Antescofo is the developper of the Metronaut App, a unique and multiple-featured App that listens to musicians and accompanies them in live as if they were playing with other musicians. Metronaut is already worldwide with more than 180k users practicing on a daily basis.

For more info, read about us in Medium and TechCrunch.

Open Positions

Music Production Innovator

Les missions

Missions de base

  • Vous supervisez la production du catalogue de Metronaut, challenge innovant, opérationnel et stratégique majeur pour l’entreprise.
  • Vous êtes la tour de contrôle de tous les intervenants : pianistes, orchestre, musiciens, copistes et ingénieurs du son, à la recherche de l’organisation optimale de ce chantier innovant.
  • Vous recrutez les nouveaux intervenants et prestataires musicaux nécessaires pour accompagner la forte croissance du catalogue de Metronaut.
  • Plus particulièrement, pour l’ensemble des étapes de la production du contenu musical de l’entreprise, vous participez directement ou encadrer le travail des autre intervenants pour :
    • Sélectionner les œuvres musicales et renforcer la ligne éditoriale du catalogue de Metronaut.
    • Assurer la relation avec les musiciens et ingé sons de la préparation jusqu’à la finalisation des enregistrements.
    • Suivre le travail des musiciens copistes de partition.
    • S’assurer de la qualité musicale, de la justesse des interprétations, de la post-production des enregistrements en studios.
    • Intégrer ces enregistrements dans le catalogue de l’appli Metronaut.

Autres missions possibles

En fonction de vos affinités et compétences :

  • Vous participez à la curation d’œuvres musicales, exercices pédagogiques, arrangements et transcriptions pertinents pour Metronaut pertinentes pour l’application, au choix ou à la vérification des partitions correspondantes.
  • Vous suivez ou initiez les relations avec les partenaires musicaux nécessaires à la forte croissance du catalogue de Metronaut.
  • Vous proposez des solutions de production de play along de tous styles (classique, musique traditionnelle, …) , en estimez les budgets, recrutez les intervenants nécessaires.
  • Vous consolidez les guidelines d’interprétation musicale et de mastering des accompagnements sonores, adaptés au contexte pédagogique et mobile de Metronaut.
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Le profil recherché

Les compétences indispensables

  • Désir de révolutionner la pratique musicale grâce aux technologies numériques.
  • Capacités relationnelles d’animation
  • Expérience dans l’édition, la pédagogie ou l’industrie musicale orientée digitale.
  • Excellente oreille musicale, attention à la qualité musicologique.
  • Solides connaissances musicologiques et familiarité avec le répertoire classique.
  • Connaissances de la notation musicale traditionnelle.
  • Connaissance des techniques de captation audio et MIDI, et de post-production.
  • Vous avez une bonne prise en main des ordinateurs Mac.

Les compétences importantes

Vous avez une ou plusieurs compétences parmi les suivantes, ou bien la motivation de les acquérir au sein de notre équipe :

  • Connaissance des logiciels DAW : Logic Pro X, Pro Tools
  • Connaissance du logiciel de gravure Finale.
  • Gestion de projet
  • Connaissances musicologiques en ’accompagnement musical, technique pianistique, technique de jeu et notations des instruments classiques (cordes, vents, cuivres, etc.).
  • Lecture à vue ou déchiffrage au clavier des partitions musicales.

Conditions & rémunérations

Mission de plusieurs mois à temps complet sous une forme contractuelle à définir ensemble,.

Possibilité de déboucher sur un CDI.
Poste à pourvoir immédiatement.

Les atouts et valeurs d’Antescofo

  • Vous changerez la façon dont les musiciens font de la musique, d’une façon inédite et unique en son genre.
  • Vous rejoindrez une équipe dynamique où les meilleurs scientifiques d’IA, programmeurs informatiques, musiciens, designers et business développeurs se retrouvent pour changer la façon dont les gens font de la musique.
  • Vous travaillez à République dans des locaux très sympas. Possibilité de télé-travail partiel.
  • Nous croyons dans l’auto-gouvernance, nous la mettons en œuvre.
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UX App Designer

We are looking for a talented designer able to lead all UX design stages, from user research to testing and prototyping. Outside exceptional user experience design talent, success in this role is dependent on being highly self-motivated and self-managed, well organized, always open to feedback and critique, and extremely collaborative.

In this position, you’ll have a unique opportunity to profoundly impact the lives of hundreds of millions of future musicians worldwide and re-imagine the way music should be played by people.

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  • You’ll lead the design team in taking initial concepts and requirements all the way through developer-ready designs.
  • Apply your creative nature and visionary ways to the design of novel and existing music applications.
  • Serve as an advocate for users within our existing product and software development life cycle.
  • Engage with users to perform usability research, working to identify workflow enhancements that will create more efficiency and improve performance.
  • Interpret and translate user insights into concepts, user flows, wireframes, visual design comps and prototypes.
  • Improve design, usability, and engagement through the analysis and integration of front-end metrics.
  • Collaborate closely with developers, engineers, growth team and musicians
  • Mentor and nurture junior designers, supporting their personal and professional growth and development.



  • This is an On-site full-time position
  • 5+ years working in a similar position
  • Your focus is UX, but you have a calling and affinity for other areas of the product development process and a strong appreciation for user experience
  • Comfortable working in an open space and highly collaborative environment
  • Great visual designer, with a strong foundation in mobile products
  • An outstanding portfolio, showcasing beautiful work and strong process
  • Excellent communication skills to clearly articulate design decisions
  • Strong knowledge of design and prototyping tools (Sketch, Principle, After Effects, Invision, Zeplin, Figma, Abstract, Illustrator, Photoshop, Framer, Origami)
  • Able to work in a highly iterative user-centered design process


  • Affinity with Music, Ability to read music scores
  • Experience on B2C Apps
  • Experience with Apps with strong Content Distribution components


  • Our brand new offices are in the heart of Paris (district of Republic) are designed in such a way that you will be able to work with serenity, to collaborate easily and to enjoy listening or playing music. 
  • You’ll get the challenges and rewards of working on a brand new product that will change the world of music, and the opportunity to grow your role.
  • Everyone at Antescofo is provided with a desk and top of the line computer and phone to help you build your own workspace.
  • You’ll work with an amazing group of people in a wide range of fields (including world-class musicians from all around the world), and have real autonomy in small, efficient teams.
  • Competitive Salary and Package.

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  • Advantageous health coverage extendable to your family (including super great dental and vision coverage)
  • Flexible time off policy
  • Great environment, with breakfast every morning!
  • Full public transport reimbursement
  • Meal card for lunch
  • Team offsites in awesome places

Android Engineer

We are looking for an Android developer that will be responsible for creating and improving the user interface for our app. The ideal candidate will not only be implementing code and structuring scenes, but also co-pioneering the next-generation music App bringing AI and music together in everyday musical life, and communicates easily with other teams, designers, musicians, and AI researchers.

In this position, you’ll have a unique opportunity to profoundly impact the lives of hundreds of millions of future musicians worldwide and re-imagine the way music should be played by people.

Our Android App is using Kotlin and Java with extensive use of Rx paradigms for communicating data flow from and to the UI through various threading mechanisms. Our Core AI technology is written in C++ and embedded in the application as external dependency.

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  • Architecting, developing, maintaining and releasing features as well as contributing to the core foundations of the Metronaut mobile app
  • Evaluate technical tradeoffs of every decision and work with design on the best UI and infrastructure practices
  • Take a User-Centric and Data-Driven approach towards development and testing
  • Push the limits of mobile devices and create great user experiences
  • Write clear, maintainable, portable, and highly functional code
  • Accurately estimate schedules and deliver high quality work products to that schedule.


  • Music is your passion ; Coding is your passion; and like other people at Antescofo, you think they should go together smoothly.
  • Years of experience as Mobile Application developer
  • Excellent knowledge of the Android SDK (View architecture, Measure/Layout/Draw, Architecture Components, Theming, etc..)
  • Strong experience of multi-threading and memory management specific to mobile devices
  • Solid software engineering practices (separation of concerns, testing, code reviews, continuous integration, design documentation…)
  • Excellent organization, prioritization and time management skills
  • Self-motivated and energetic team player with a very strong work ethic and cooperative attitude
  • User-centric & Data-driven
  • Strong mobile development culture.


  • Years of practicing a Musical Instrument, Ability to read music scores
  • Experience building a mobile app from scratch to the App Store
  • Experience in Reactive Programming (i.e: RxJava)
  • Experience with Audio programming and low-level audio APIs



  • You’ll have a profound impact on how people will play music.
  • You’ll work with an amazing group of people in a wide range of fields, and have real autonomy in small, efficient teams.
  • You’ll get the challenges and rewards of working on a brand new product that will change the world of music, and the opportunity to grow your role.
  • Enjoy working with world-class musicians from all around the world, and working at the heart of Paris with all its perks.
  • Competitive Salary and Package.

Apply Now

Sound Engineer

Main missions

  • You’ll be managing the production of our audio accompaniment recordings (piano play alongs): Recording of pianists on acoustic pianos equipped with MIDI sensors.
  • You are in charge of post-productions including audio track synthesis and mastering, and real-time MIDI remastering.
  • You prepare recording sessions with pianists and copyists.
  • You are responsible for the Musical quality and accuracy of interpretations.
  • You integrate prepared recordings into Metronaut App catalog through our in-house computing tools and employ our recognition and automatic data processing algorithms developed to this end.
  • You optimize the mastering of sound accompaniments for smartphones & tablets (iPhone, iPad, …).
  • You will participate in the evolution of our in-house Tools and music production with a team of best engineers, musicians and music researchers worldwide.

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Depending on your affinities and skills

  • You record and produce audio accompaniments with other musicians: guitarists, flutists, etc.
  • You are responsible for mixing and mastering orchestral recordings and other musical ensembles.
  • You produce play-alongs of all styles (classical, traditional music, …) by the means of sound design & audio synthesis that you know.
  • You take part in the curation of musical works relevant to the application, and / or the choice or verification of the corresponding scores.
  • You write arrangements of new or already produced pieces for other solo instruments.

We are looking for

Essential skills

  • You value Musical Quality and you armed with excellent sight-reading skills to this end.
  • You have a solid knowledge of traditional musical notation, and you are familiar with classical repertoire.
  • You master LogicX and/or Pro-Tools software, in particular for MIDI recording, MIDI track manipulation and editing, and click track creation.
  • You have basic knowledge of Finale engraving software, or are motivated to acquire this with our professional engravers’ team.
  • You are proficient with Mac OS environment.

Important skills

  • You have abilities in keyboard deciphering or sight reading of musical scores.
  • You have good musicological knowledge in piano accompaniments, piano techniques, playing techniques and notation of classical instruments (strings, winds, brass, etc.)

Conditions and remunerations

  • Minimum 2 days every two weeks, evolving to two days per week depending on the availability of the candidate.
  • Competitive pay per day, to be agreed based on the candidate’s experience.

Our Values

You’ll have a profound impact on how people will play music.

Antescofo is the best place in the world where cutting edge AI scientists, computer programmers, designers, business-developpers and world-class musicians come together to change how people interact with music.


You’ll evolve in an Award-winning Startup, at the heart of Paris, and graduate of two of the best Startup ecosystems in town (Agoranov and StationF).

We work in small efficient teams, where everyone has autonomy, freedom to make decisions, and a strong sense of ownership. At Antescofo, we believe in and implement self-governance.




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Metronaut by Antescofo

© 2017 Antescofo SAS