OneSignal is offering a $2,000 referral bonus for this job!

90 days

Probation Period


Reputation Score

>3 month

Time since posting

Company logo

Site Reliability Engineer

Remote - United States (NY, PA, TX, UT, CA)$130K - $160K

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,, 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 venture-backed by SignalFire, Rakuten Ventures, Y Combinator, HubSpot, and BAM Elevate (read more about our recent Series C!). We offer remote work as the default option in the United States in California, New York, Pennsylvania, Texas, Utah and soon - 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 in the NYC area. 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. 

Our blog contains more information about the OneSignal Engineering career ladder, and our diverse team.


About The Team:

We have grown rapidly to where we are today serving billions of HTTP requests daily and sending upwards of over 12 billion messages daily. We achieved this scale by writing scale-sensitive components in languages like Rust and Go. This potent combination of high performance with efficient resource utilization has given us an incredible competitive edge.

We are hiring an SRE to help us continue to scale by operating and engineering the future of our infrastructure. We are maintaining 99.95% uptime today, and we are investing to ensure we maintain that as the business continues to grow and as the product evolves.

Your primary task will be software engineering with a focus on infrastructure, operations, and automation. You'll be building systems to run our product, improving internal services, and advising product teams on architecture as it relates to the operability of the service.

The systems you'll be responsible for include all of the services which power our product. This ranges from off-the-shelf services like Redis, PostgreSQL, Kafka, Kubernetes, etc. to our in-house services such as the Rails web app, various Rust backend services, and our high-performance API layer written in Go.

You'll be working with Kubernetes to automate our data center operations and writing operational services to automate database operations. One of the key challenges in this role is to not only understand systems to the point of being able to manually operate by hand but also to understand in sufficient detail to write software systems to automate such operations.


What You’ll Do:

  • Improve our CI/CD pipeline to improve deploy performance
  • Develop new tools to enable other developers to better spend their time
  • Add new code to the system to enable messaging users on a new platform
  • Help evaluate a new storage technology to further scale our stack
  • Provision and configure new hardware
  • Investigate network issues
  • Improve application and infrastructure monitoring


What you'll bring:

  • 4+ years SRE experience
  • Experience operating reliable production systems at scale
  • Knowledge of Linux systems internals
  • Desire and ability to automate tasks
  • Operational experience deploying and managing Kubernetes 
  • Experience working with Cloud Providers (AWS/GCP/Azure)


We value a variety of experiences, and these are not required. It would be an added bonus if you have experience in any of the following:

  • Recently writing Go and/or Rust
  • Working with Layers 1-3 of the OSI networking model
  • Redis, Kafka, nginx, PostgreSQL


The New York and California base salary for this full time position is between $130,000 to $160,000. Your exact starting salary is determined by a number of factors such as your experience, skills, and qualifications. In addition to base salary, we also offer a competitive equity program and comprehensive and inclusive benefits.

Qualities we look for:

  • Friendliness & Empathy
  • Accountability & Collaboration
  • Proactiveness & Urgency
  • Growth Mindset & 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.

Applicants with disabilities may be entitled to reasonable accommodation under the terms of the Americans with Disabilities Act and certain state or local laws. A reasonable accommodation is a change in the way things are normally done which will ensure an equal employment opportunity without imposing undue hardship on OneSignal. Please inform us if you need assistance completing any forms or to otherwise participate in the application and/or interview process.

OneSignal collects and processes personal data submitted by job applicants in accordance with our Privacy Policy - including GDPR and CCPA compliance. Please see our privacy notice for job applicants.