Senior Java Server Engineer at Smule
Sofia, BG

Smule Bulgaria EOOD is a subsidiary of Smule Inc. – a leading US based company, founded in 2008 and specialized in developing innovative mobile based software solutions. Ten years on, Smule Inc. employs more than 200 people and is a vibrant, global community of music lovers.


Smule is on a mission to bring the world together through music. Music is much more than listening… it's about creating, sharing, discovering, participating, and connecting with people. With 50 million monthly active users creating over 20 million songs every day, Smule is connecting people all over the world through the joy of making music and transforming the music landscape from one of passive listening to collaborative creative expression and active engagement.


Our Smule Nation Platform supports millions of daily users, takes more than 2.2M recordings uploaded in any single day, handle more than 12Gbps peak traffic, and deals with peta bytes of data, with exponential growth. We're growing fast and are looking for server engineers to help us scale our platform to achieve its full potential connecting people around the world.



  • Build back-end services and infrastructure that enable Smule to scale the largest social graph for music on the internet.
  • Work closely with product teams to define feature specifications and deliver great user experiences built on top of back-end services.
  • Work closely with operations to build and scale back-end services. Work on performance, stability, capacity plan, expansion, and system upgrade.
  • Deploy releases for use by millions of people, be escalation contact for operations engineers, debug problem live.
  • Build report interfaces, data feeds, and internal admin features.



  • Passion for building the largest music social graph.
  • Bachelor degree in Computer Science, Computer Engineering or equivalent education experience.
  • 7+ years of server-side coding in Java.
  • 2+ years in a tech lead role. Demonstrated technical leadership of driving projects successfully.
  • Hands-on experience with design, development, scaling, troubleshooting, and live support of server applications
  • Self-starter, strong sense of ownership, gets things done. Drives work to completion reliably, possibly with scary reliability.
  • Server-side development experiences in smart phone applications (iOS, Android) and/or consumer electronics industries highly desired.
  • Experiences with large scale internet service architectures highly desired.
  • Experiences with Play! Framework. Acceptable with Spring, Tomcat, JBoss, WebLogc, or WebSphere.
  • Experiences with Elasticsearch, Redis, Facebook Graph API are highly desired.
  • Strong knowledge of SQL and MySQL forged in the fires of high traffic, high availability web app environments.
  • Fun, positive attitude. Great communication skills and a healthy desire for collaboration.


Would be a plus

  • Passion for something that Smule is about: music, games, social experiences, outstanding software, massive scale.