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Genius is an online knowledge project with the goal to annotate the world.
Engineering, Full Time    Brooklyn    Posted: Thursday, November 22, 2018
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Genius is looking for an iOS Engineer to architect & implement new features on iOS. Were looking for makers with a sophisticated code sense: folks whove built cool things, but who can also maintain & scale those things, & who feel at home deep in the guts of a library.

The best candidates will have professional experience on an iOS app serving a large volume of users, will be proficient with Objective C & Swift, & have some experience with the core technologies we use (Auto Layout, AVKit, & Realm).

Genius is the world's biggest encyclopedia of music. Powered by its community, in-house creative team, & the artists themselves, Genius serves music knowledge to over 100 million people each month on & everywhere music fans connect across the internet.

Founded in 2009, Genius began as a platform for annotating rap lyrics. Over the years, it has expanded its mission to include more than hip-hop, & more than just lyrics. Every song has a story that needs to be told, & the biggest names in musicincluding Frank Ocean, Lorde, & Cardi Bcome to Genius to give the world insight into their art.

To learn more check out our sizzle, & follow us on Twitter, Instagram, Facebook, & Youtube.


  • Build & maintain Geniuss iOS application features while working with core libraries & frameworks including Auto Layout, AVKit, & Realm
  • Create reliable, crash-free releases on a repeatable & regular schedule
  • Work closely with the full stack team to build features based on our API, & to plan for future API improvements
  • Work closely with other engineers to define feature specifications & craft unique & beautiful user experiences


  • At least 3 years professional iOS development experience
  • Proficiency with Objective C, Swift
  • Knowledge of, & passion for mobile app best practices
  • Have personally published or worked on at least one application on iOS App Store

Example Projects:

Some example projects to help you demonstrate your interest in the kind of work we do at Genius include, but are far from limited to:

  • Build a system which fetches data & stores it in the database of your choice (Realm is preferred)
  • Create a layout which scales across a wide range of devices using size classes & auto layout
  • Make a player which plays music using Apple Music
  • Write a SiriKit integration that controls your music
  • Build an app that lets the user explore their music library using collection views & grid layouts
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