Customer messaging via push notifications, email, SMS, & in-app.

Senior Software Engineer, Product Engineering (Channels)

New York, NY / San Mateo, CA / Remote (United States)
Job Type
3+ years
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About the role

OneSignal is a Remote First Collaboration Company, offering Remote work as the default option across the United States. We offer in-office experiences in  San Mateo, CA  and  New York, NY.

Our blog contains more information about the OneSignal Engineering career ladder, our remote-first culture, and our compensation model. Our salary bands are available on AngelList.

OneSignal has a lot of the great tech startup qualities you'd expect, but we don't stop there. Our massive scale and small team, emphasis on healthy life balance and kindness in all our interactions, and focus on ownership and personal growth make OneSignal a uniquely great place to work.

Our product engineering group builds our main product interface ( and API. With over 10 billion messages sent each day and over 1 million users, our small team’s work makes a massive impact. We tackle challenges at the intersection of engineering and product development, like notification authoring for over a dozen different platforms and multiple mediums (push, in-app, SMS, and email) and intelligent message delivery customized to each recipient.

About the Team: Our Channels team focuses on building and scaling new messaging channels on the OneSignal platform. Currently the team is focused on elevating our email offering to a world-class level while keeping our SMS channel competitive. We move quickly, yet deliberately, and look to innovate along the way.

In a typical month, a Product Engineer at OneSignal might:

  • Solve challenging business use-cases in a project with elegant, readable code and clear tests
  • Propose a technical investment to make our systems faster, safer, more maintainable, or better in another way you’re passionate about—then drive it forward with your colleagues.
  • Participate in code reviews and help in software architecture decisions
  • Iterate with the Product team on product specs and designs, weighing in not just on feasibility but on opportunities driven by great tech.

What you'll bring:

  • 4+ years software engineering experience building high volume, scalable SaaS applications from end-to-end
  • Strong proficiency with React + Typescript
  • Ruby + Rails, or equivalent with the desire to learn Ruby on Rails at OneSignal
  • Experience with common testing libraries for React.js or Ruby on Rails systems
  • A passion for mentoring junior or mid-level software engineers to achieve technical excellence together
  • You stay on top of new technologies and love to tinker with new tools
  • Experience breaking down large-sized projects into easily understandable tasks and working with a team to drive projects forward

Qualities we look for:

  • Friendliness 
  • Modesty
  • Ability to collaborate well on a team 
  • Can deliver solutions independently
  • Self Starter
  • Love of learning

In keeping with our beliefs and goals, no employee or applicant will face discrimination/harassment based on: race, color, ancestry, national origin, religion, age, gender, marital domestic partner status, sexual orientation, gender identity, disability status, or veteran status. Above and beyond discrimination/harassment based on 'protected categories,' we also strive to prevent other, subtler forms of inappropriate behavior (e.g., stereotyping) from ever gaining a foothold in our office. Whether blatant or hidden, barriers to success have no place in our workplace.

Why you should join OneSignal

We started as app developers who just wanted a developer-friendly API for push notifications. Finding no good solution, we built one ourselves.

Today, OneSignal is the leading solution for sending effective messages across channels including mobile push notifications, web push notifications, in-app messaging, SMS, and email. We support over 1,400,000 of the world's leading marketers and developers.

OneSignal is available on every platform and development environment, letting content creators focus on quality user engagement instead of complex implementation.

Covid-19's Impact on OneSignal

Covid-19 has accelerated OneSignal's growth. Near the beginning of Covid, we saw a 20%+ increase in new accounts created for OneSignal each day and a 20%+ increase in daily message delivery volume. This trend has continued as more businesses seek to better engage with their customers on digital channels.

We are growing faster than ever, and hiring in all departments. We hope you'll apply and we look forward to meeting you!

Team Size:100
Location:San Mateo, CA
George Deglin
George Deglin
Long Vo
Long Vo