Note: The job is a remote job and is open to candidates in USA. Swiftly, Inc. is on a mission to help cities move more efficiently through their leading transit data platform. The Senior Software Engineer - Backend will develop predictive algorithms and real-time data systems to enhance the accuracy of passenger information and improve transit operations.
Responsibilities
- Design, evaluate, build, and maintain real-time algorithms and systems for vehicle tracking, map-matching, ETA predictions, and disruption detection
- Contribute to Swiftly's real-time data pipelines, APIs, and cloud services that power customer-facing products
- Build data infrastructure to support rigorous algorithm development, validating changes at scale before they reach production. This may include pipelines for capturing and replaying real-time data, offline evaluation frameworks, and shadow testing infrastructure
- Collaborate with product managers, designers, and engineers to prototype solutions, validate approaches, and deliver incremental value
- Break down complex problems into smaller, testable pieces to help the team move quickly and reliably
- Share designs and technical decisions openly, weighing tradeoffs and documenting for alignment
- Apply modern engineering practices to deliver robust, maintainable, and extensible code
- Support and elevate teammates through code reviews, pairing, and knowledge sharing
- Take ownership of your work and team outcomes, continuously reflecting and improving
Skills
- 5+ years of software engineering experience, ideally with data-intensive or real-time systems
- Experience with Java and cloud-native backend services (AWS preferred)
- You've taken algorithms from idea to implementation, delivering production-ready systems that drive real-world impact
- Strong understanding of real-time data processing, such as streaming, event-driven, or predictive systems
- Comfortable building and consuming APIs; proficient with SQL
- Curiosity and excitement about applying predictive algorithms to solve real-world problems in transit
- Growth mindset and adaptability in a fast-changing technical landscape
- Collaborative, humble, and open to feedback; thrives in blameless, team-oriented environments
- Experience with Apache Kafka
- Python/JupyterHub
- JavaScript/Vue.js
- AWS Step Functions
Benefits
- Equity compensation (company ownership) for every employee
- Medical, Dental and Vision
- Retirement with Employer Match
- Flexible Spending Account (FSA)
- Home office setup reimbursement
- Monthly cell/internet reimbursement
- Monthly "Be Well" stipend
- Flexible PTO with a recommended minimum
- Flexible work environment
- 16 paid holidays - including months without US national holidays
- 12 fully paid weeks of leave for child birth/adoption
Company Overview