Do you want to be a part of a lean and mean team? To build something revolutionary? To achieve a vision Alexander Graham Bell would love?

We are looking for a system-level developer with experience implementing VoIP communications on iOS mobile devices. If you have a passion for real-time audio applications that will meaningfully change how millions of people communicate and you thrive working in a fast-paced startup environment, then join us!

Responsibilities: • Own the entire implementation process from design to release incorporating feedback from a range of stakeholders • Develop an amazing core application that is high quality, easily extensible, tightly engineered, and resilient to network chaos • Move the app forward rapidly without overlooking the details • Contribute to making the team awesome Requirements: • In-depth knowledge of C and additional language (e.g., Objective C, Swift, C++, Erlang, Python, Javascript, etc.) • 3+ years iOS development including VoIP communications • Experience with voice quality diagnostics, monitoring and analytics • Experience designing clean and maintainable APIs • Experience with REST APIs and global back-end service platforms • Strong problem-solving and quantitative analytical skills • Able to synthesize complex products and communicate effectively • Self-starter with outstanding attention to detail • Team player who is willing to roll up your sleeves to get the job done. • Highly motivated and excited to work in a fast-paced startup environment

Highly Desirable: • Knowledge of front-end web UI technologies and frameworks • Experience with running telephony servers in the cloud • Knowledge of video/signaling technologies • Having an app you’ve delivered to the App Store

Location: Anywhere in the United States, but ideal locations are Silicon Valley, New York, Boston/Cambridge, Los Angeles, and Phoenix