Senior Software Engineer - Backend

Company Description Swiftly is on a mission to help cities move more efficiently. We are the leading transit data platform for agencies to share real-time passenger information, manage day-to-day operations, and improve service performance. Today, over 200 transit agencies in 12 countries – including LA Metro, MARTA, SEPTA, and MBTA – rely on Swiftly to improve on-time performance by up to 40% and increase passenger information accuracy by up to 50%. The result is better service reliability, increased ridership, and more efficient transit operations. Even though Swiftly's HQ office is located in San Francisco, CA, we are open to candidates in most locations across the U.S. as well as Ontario and British Columbia, Canada. At this time we are unable to provide Visa sponsorship. Engineering at Swiftly Engineering at Swiftly is not only about writing code – we believe in creating empowered product teams that work together to conceptualize new features and bring them to life. Each team aims to strike a balance between delivering incremental improvements, creating prototypes to test new ideas and mitigate risks, and building scalable software using industry best practices. We’re guided by a mission to positively impact transit riders, and we embrace humility and intentionality in how we make technical decisions so that we best meet our customers’ needs. About the Role This person will join the team that owns the real-time source of truth for our system, developing predictive algorithms that power accurate passenger information. From map-matching and vehicle location processing to ETA predictions and disruption detection, your work will drive the tools transit professionals use every day to manage service, improve operations, and keep riders informed through partner apps and integrations. We're a full-stack team building real-time data pipelines, backend services, APIs, and client-side web apps for visualizing networks and adjusting service. Our goals include delivering co