Apply Now

Mobile Developer at Zello

Austin · Full Time

Zello is growing fast, and we’re looking for people who’ve thrived at startups—independent analytical thinkers who can collaborate across teams. Here, you’ll enjoy the energy and agility of a startup bolstered by the profitability and stability of an established brand. Our equitable office hierarchy, acceptance of all, and flexible work/life balance reflects our Austin hometown values. And we’ll actively invest in your education and wellness with world-class perks. Contact us to find out more!

Apply to Zello

Job Description

With over 120M users, Zello is the most popular push-to-talk app in the world, recently reaching #1 overall in the AppStore and Google Play. Created by a small team in Austin, TX, Zello was a key communication tool for search and rescue efforts during hurricanes Harvey and Irma in 2017.

We are looking for a mobile apps developer to join our team full-time in our W6th street office to focus on our Android app. You will work closely with the product team to build the experience, directly impacting millions of users and our bottom line.

You must have

* Practical knowledge Java (+ Android SDK).
* At least 1 year of software development experience for Android or iOS
* At least one completed app in Apple AppStore or Google Play -- include the links in your resume or cover letter
* Good understanding of OOP, concurrency, synchronization, memory management and all other little things which make software development complicated and highly paid job
* Clear understanding of how networks work (TCP, UDP, sockets, HTTP, TLS etc)
* Self-motivated and passionate attitude
* Attention to detail, urge to create beautiful things

A perfect candidate will have

* Understanding of digital audio and streaming
* University degree in computer science, math or related field
* Experience developing apps for multiple mobile platforms
* Experience working in fast-paced and agile startup environment
* Team player mindset and a great sense of humor

We offer a fun and flexible work environment, competitive salary, and generous stock options plan.

Out of state? So are we! 70% of the Zello team moved to Austin from places as far as 6000 miles away. We haven't regretted it and neither will you. Zello offers relocation help to qualified candidates.

Apply via AngelList or email us at

Apply Now

What We're Building

Over 120 million people worldwide use the Zello app to turn any smartphone or connected device into a walkie-talkie—anywhere with Wi-Fi or cellular data service. We connect friends, families, and communities. ZelloWork, our subscription business app, provides secure and customizable push-to-talk networks for top brands in every sector.

We believe in the concept of social-radio: social media powered by the simplicity of voice and its ability to make meaningful connections. Voice is our most trusted way of communicating and solving problems. By enabling live conversations, we believe people can become more cooperative, more compassionate, and less isolated.

Other Jobs at Zello

Zello Team

Bill Moore
CEO of @Zello, a profitable voice chat startup with 120M users. Founder of @TuneIn
Alexey Gavrilov
CTO at @Zello, my 3rd startup. Previously dev at @TuneIn. MSc in applied math and physics.
Eugene Mymrin
Senior software engineer and co-founder @Zello.
Amy Roberts
Designer at Zello, previously at Microsoft Teams. Masters in HCI + Design from University of Washington.
Laura Lambert
Operations professional with a demonstrated record of success in communications, education, and student services.
See More