Senior IOS Developer

ELSA, a Silicon Valley based fast-growing startup with the most powerful artificial intelligence technology that detects pronunciation accents. We’re on a mission to help people to speak English with confidence, and empower them to reach their potential.

We have built out our track records with high calibre teams:

– “The Best Digital Learning App” at Reimagine Education 2016

– The 2016 winner of the world’s largest startup competition SXSWEdu Launch

– Recently invested by Google AI’s fund

– Recognized as Top 5 Best Artificial Intelligence Apps (by Research Sniper), and Top 4 Companies Using AI To Transform The World (by Forbes)

– Proven mobile app product with a growing user base of 4 million people from 101 countries

Join Elsa to grow globally, and work with an A Team to transform the world.


We are looking for a senior IOS developer (with an option to become the IOS team lead) that aligns with ELSA’s mission to help every language learner speak English fluently and confidently.

As part of ELSA’s team, you will build high-quality features for English learners in over 100 countries around the world. The features you build will get in the hands of hundreds of thousands of users in every sprint release.

Join our world-class team and be one of the personalities that make the ELSA culture awesome.

  • Architect and implement new features for iOS, in RXSwift, MVVM, Unit Testing.
  • Work with state of the art iOS development technologies such as MVVM and RxSwift
  • Contribute to a solid development process that includes tests, pull requests and peer code reviews, as well as keeping good programming practice
  • Apply lean startup best practices such as feature flagging and AB testing
  • Maintain and extend the test coverage of the app
  • Support the team with bug fixing and code maintenance whenever problems are reported by users
  • Communicate remotely on a daily basis with your colleagues around the world
  • Continue to learn and tackle new technical challenges
  • Mentor junior iOS engineers and students and share best practices you’ve learned
  • Get hands on with optimizing the CI/CD pipelines


  • Computer science (or related) university degree.
  • Having leadership experience at least 5 members in team.
  • Minimum 10 years of experience in professional iOS development, with solid knowledge of RXSwift, MVVM
  • Experience working in a team of mobile developers
  • Have contributed to release at least one iOS app in the App Store.
  • Profiency in English communication skills with Global Team.


  • Competitive salary package & stocks
  • Flexible working hours
  • Ample room to grow professionally
  • Experience the true startup spirit of a fast growing and well funded Silicon Valley startup
  • Opportunity to work on a mission that can transform the lives of 1.5 Billion language learners around the World
  • Join Elsa team to grow globally and transform the world together with our A Team! APPLY TODAY!

Please send your profile / resume to [email protected]