Senior Software Engineer, Email Team (Fullstack)

OneSignal, Inc.
📍 london, on, Canada 💼 Full-time 🕒 Posted June 01, 2026

Job Description

OneSignal is a leading omnichannel customer engagement solution, powering personalized customer journeys across mobile and web push notifications, in-app messaging, SMS, and email. On a mission to democratize customer engagement, we enable over a million businesses to keep their users engaged and up to date by delivering billions of messages daily.

1 in 5 new apps launches using OneSignal! And we support companies in 140 countries! Our customers range from startups and small businesses just getting off the ground to established companies such as Zynga, USA Today, Bitcoin.com, Eventbrite, Tribune, and many more.

We’re Series C, venture-backed by SignalFire, Rakuten Ventures, Y Combinator, HubSpot, and BAM Elevate. We offer remote work as the default option in the United States in California, Colorado, Massachusetts, New York, New Jersey, Oregon, Pennsylvania, Texas, Utah and Washington. As well as in the UK, Singapore, and Canada - with plans to expand the locations we...

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Job Details

  • Location london, on
  • Job Type Full-time
  • Category IT & Technology
  • Posted Date June 01, 2026
  • Application Deadline July 11, 2026