Staff Software Engineer, Notifications Team

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

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.