Senior Backend Developer

Published: 2025-11-15

ABOUT YOUSICIAN Yousician is a revolutionary music platform for anyone to learn, play, create and teach music. Millions of people around the world use Yousician to advance their music skills and play the music they love. MAKING MUSICALITY AS COMMON AS LITERACY To achieve our mission, we reimagine music education, so everyone can unleash their inner musician. We believe that ...

Job details

Helsinki, Finland (city)
On-site
Full-time
JOIN YOUSICIAN

Yousician impacts and enriches the lives of millions of people by empowering them to play music they love, learn something new, and nourish their well-being. We merge music and tech to amplify the everyday. We reimagine the way people learn to play so that everyone can play.

And, you don't need to be a musician to join Yousician!

We’re a band of passionate professionals who love what they do, are great at it, and move to the beat of the same drum. We’re for all players: from newbies to seasoned pros. If you are looking for a rewarding career opportunity that helps shape the future of music-tech, you’re in the right place!

  WHY YOU SHOULD APPLY

We are now looking for a Senior Backend Developer to develop critical backend services for our monetization initiatives. As a Backend Developer in the team, you'll get to make concrete changes in the app and the payment side of the product. You'll get a chance to shape how critical projects turn out, from prototyping through A/B testing to new feature releases. You won't be just implementing tickets, but taking part in the whole process.

Most importantly, 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 education works.

  WHAT YOU WILL DO

As a Backend Developer at Yousician, your day-to-day responsibilities will include:

  • Designing and implementing new features, ensuring robustness and maintainability and scalability.
  • Build and maintain the server-side logic, databases, and APIs that power monetization features like subscriptions. 
  • Ensure the monetization backend is scalable, fast, and reliable, handling high volumes of transactions and user requests without performance degradation.
  • Establish and advocate for best coding practices, driving improvements in code quality and system architecture.
  • Own complex troubleshooting and debugging efforts, proactively identifying and resolving performance bottlenecks
  • Conduct and mentor others in code reviews, fostering a high standard of engineering excellence.
  • Collaborate closely with cross-functional teams to drive architectural decisions and long-term technical strategy.
  • Guide and support junior developers, sharing knowledge and best practices.



WHAT YOU NEED TO SUCCEED
  • Strong experience in backend development
  • Advanced proficiency in Python 3 and backend frameworks like Flask or FastAPI.
  • Deep experience with REST-based API development and database technologies (MongoDB, SQL).
  • Strong cloud experience, with expertise in deploying scalable applications on cloud platforms.
  • You have been working with payment solutions (integrations, mobile payments, etc.) Example : "Stripe or Ayden".
  • Experience with monetization strategies, including Apple Store and Google App Store integrations.
  • Strong communication and collaboration skills, ensuring smooth teamwork in an agile, cross-functional environment

Nice-to-Haves:

  • Experience with unit testing and test-driven development (TDD), preferably using Pytest or similar frameworks.
  • Familiarity with Unity and the ability to read app code.
  • Experience with serialization frameworks like Pydantic.

 

  WHAT WE OFFER
  • You’ll have an opportunity to join our international team, backed by the top VC’s and competing with the best education applications in the world 
  • You'll have a meaningful and profound impact on the lives of millions of musicians and future musicians all around the world.
  • You’ll get to work with a passionate and friendly growing band of PMs, designers, developers and data scientists.
  • You'll get a competitive compensation package - salary, perks- and work in an awesome office in the heart of Helsinki.
  HOW TO APPLY  

Send us your application and CV(in English). Or get in touch with us through our Talent Acquisition Partner [email protected]. Let's make the world a more musical place together! #rockon

  ABOUT US 

Yousician is the world’s largest music-tech company, with millions of users worldwide. Based in Helsinki, Finland, Yousician is home to the category-defining Yousician and GuitarTuna apps. Yousician, the #1 platform to learn and play music, makes learning fun, easy, and more accessible for everyone. Yousician’s innovative, award-winning technology listens to you play and gives instant feedback. With interactive, gamified lessons and songs, and courses by world-famous artists like Metallica, Billie Eilish and more, Yousician empowers people to play music they love. Today Yousician employs 100+ professionals from nearly 30 nationalities. 

We're hiring, so come join our amazing team and help us make the world a more musical place!

  Shaping Music Together - With Every Voice  

At Yousician, we’re on a mission to make musicality as common as literacy, and key to that is building a team as diverse as the people we serve. As part of our ongoing journey towards building a diverse, equitable and inclusive culture and in accordance with our core values, we welcome applications from all individuals, regardless of background, age, race, color, ethnicity, religion, disability, gender, sexual orientation, family status, education, socioeconomic status or any other characteristic. People with severe disabilities will be given preference if equally qualified.

If you have a disability, special needs, or require any specific needs or support during the application process, please feel welcome to inform us and we’ll gladly provide the support you need during the application and interview process.

We’re here to make music more accessible and that includes the path to joining our team.

  CANDIDATE PRIVACY  

Here at Yousician, we take your privacy seriously. We only process your personal data for recruiting purposes. You can read more about candidate privacy in our Privacy Notice.

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