via LinkedIn
$190K - 210K a year
Develop and maintain scalable customer engagement products using TypeScript, Rust, and Ruby, collaborating cross-functionally to deliver new features and ensure system reliability.
8+ years experience, strong React and TypeScript skills, backend distributed systems knowledge, ability to own end-to-end software delivery, and experience with system programming languages like Rust or Ruby.
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 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 in NY and other areas. Hiring in Singapore is done in partnership with a local EOR. 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 The Notifications team at OneSignal builds the UI, APIs, and core delivery systems that power our industry-leading web push, mobile push, and in-app messaging products. We operate at massive scale, helping thousands of businesses deliver billions of messages that are timely, personalized, and reliable. Our work sits at the intersection of deep technical complexity and thoughtful product design. We tackle challenges such as cross-platform message rendering, real-time delivery orchestration, channel-specific capabilities and constraints, and creating intuitive workflows that help customers craft meaningful engagement. The team also drives innovation in areas like rich media support, sequencing and personalization, user segmentation, and the evolving standards of modern browsers and mobile platforms. We iterate quickly to bring impactful features to market while maintaining high standards for performance, reliability, and user experience. Our mission is to empower customers to communicate with their users in the most effective, scalable, and delightful way possible. What You'll Do • Collaborate with Product Managers, Designers, and Engineers to implement new features for our Customer Engagement products, using Rust, TypeScript, and Ruby. • Conduct code and specification reviews, providing technical insights to improve our features and code base • Resolve production reliability issues and ensure the system scales to meet the demands of our customers • Refactor components on the frontend, creating extensible, reusable and clean component architecture • Stay up-to-date with the latest industry trends and technologies, incorporating new ideas into our engineering processes • Present Technical Specifications to other Staff Engineers, drive alignment on proposed solutions, and prototype draft implementations What You'll Bring • 8+ years of professional software development experience • Experience creating extensible, reusable React components • Experience with TypeScript and at least one system programming language (Rust, Go, Ruby, etc) • Experience working with backend distributed systems at scale • Ability to own and deliver end to end software functionality from design/architecture, through implementation, testing, production, release, and monitoring • Ability to manage complex cross-team coordination and work closely with product owners • Ability to evaluate and communicate different engineering solutions and trade-offs • A strong willingness to learn new technologies rapidly • Experience designing RESTful and/or gRPC APIs Required 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: • Experience with event streaming framework such as Apache Kafka • Experience with Rust or another systems programming language • Experience with Kubernetes • Experience with data modeling using at least one database engine (MySQL, PostgreSQL, Redis, Cassandra, ScyllaDB, etc.) The New York and California base salary for Staff Software Engineer full time position is between $190,000 and $210,000. 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.
This job posting was last updated on 11/28/2025