Senior Software Engineer - Backend

# Senior Software Engineer - Backend## Swiftly, Inc.

Published 17 Jul 2026### Share this job Ontario, CA, USA
130K - 210K USD Annual Full Time## Role Highlights### Languages used

JavaSQLPython Java Script S3 ### Key skills

Data Infrastructure

IntegrationsAPIProduct Management Code Reviews Data Processing Full Stack Operations Reliability Backend Frontend Cloud Testing Streaming AIGoogle Analytics### Tools, Libraries and FrameworksIOSAWSApache Kafka Jupyter Hub Vue .js## Description The role involves developing predictive algorithms that serve as the source of truth for a real-time transit system. Responsibilities include building and maintaining data pipelines, backend services, and APIs to support vehicle tracking and ETA predictions.

The individual will contribute to map-matching and disruption detection tools used by transit professionals. The work requires collaborating with cross-functional teams to prototype solutions and validate approaches itionally, the position focuses on delivering robust, maintainable code while supporting team members through code reviews and knowledge sharing.##

Required Qualifications and Skills Candidates must possess at least five years of software engineering experience, specifically with data-intensive or real-time systems. Proficiency in Java and cloud-native backend services, preferably AWS, is required. Applicants should demonstrate a strong understanding of real-time data processing, API development, and SQL. The role requires the ability to take algorithms from concept to production-ready implementation. No specific degree or professional qualification is mentioned as a requirement.##

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