Senior Engineering Manager, Core Services

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 engagement, we enable over a million businesses to keep their users - including readers, fans, players and shoppers - engaged and up to date by delivering 12 billion messages daily. 

1 in 5 new apps launches using OneSignal! We support companies in 140 countries, including Zynga, USA Today, Bitcoin.com, Eventbrite, Tribune, and many more - from startups and small businesses just getting off the ground to established companies communicating with millions of customers.

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, New York, Pennsylvania, Texas, Utah and Washington. As well as in the UK and Singapore - with plans to expand the locations we support in the future. Some roles are hybrid roles and will be listed as such. We have offices in San Mateo, CA and London, UK, and offer flex seating options for employees to work together in-person where we don't have offices. Hiring in Singapore is done in partnership with a local PEO.

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. 

About The Team:

OneSignal has grown rapidly. Today we serve billions of HTTP requests and send over 12 billion messages daily. We achieved this scale by leveraging bare metal cloud and writing scale-sensitive components in languages like Rust and Go. This potent combination of high-performance, low-cost hardware with efficient resource utilization has given us an incredible competitive edge.

The Core Services team enables product development at OneSignal through the design, development, and operations of cross-cutting horizontal services which form the backbone of our technical stack. This includes the delivery pipeline, responsible for delivering over 12 billion push notifications, SMS, and emails every day, gRPC services written in Go and Rust, and Kafka consumers written in Rust. You will work with Rust, Go, Ruby, gRPC, Redis, Kafka, Scylla, and PostgreSQL

As the Engineering Manager for that team, you'll own significant projects that …