Principal Software Development Engineer / Architect, Java

TSS Paratransit - Los Angeles, CA


We are looking for a smart, motivated Principal SDE who can help take our Paratransit software suite to new heights.

For this position, you should have a strong background in OO design with Java. Equally important to these specific skills is the ability to quickly adapt to rapidly changing business requirements, learn new systems, create reliable/maintainable code, and find solutions to difficult problems.

IMPORTANT: Please apply only if

  • The Java ecosystem is your PRIMARY focus, specialization, and you continuously work on Java based projects.
  • You are an experienced architect.
  • You don’t need a permit to work in the USA.

Base Qualifications

  • Bachelor’s Degree in Computer Science or a related field
  • 5+ years professional experience in software development using Java
  • 2+ years experience in Spring Framework or in one of the Spring products based on it
  • 5+ years experience in working with relational databases
  • Experience with at least one well-known ORM framework (Hibernate or EclipseLink)
  • Computer Science fundamentals in system design, data structures, algorithm design, and complexity analysis
  • Experience in leading code reviews, design reviews, automated testing, whiteboard discussions
  • Experience in collecting requirements, describing software product features and technical designs
  • Comfortable with a rapidly changing environment
  • Experience releasing products with 24x7 availability

Preferred Qualifications

  • Experience in developing of transportation related software
  • Experience with rapid prototyping
  • Experience with AWS
  • Experience with containerization
  • Experience mentoring junior software engineers to improve their skills, and make them more effective
  • Working knowledge of enterprise application patterns (e.g. Spring Integration)
  • Knowledge in GIS, working with a GIS framework using Java is a great plus
  • Experience with distributed caches (e.g. Infinispan, Terracota, Hazelcast)
  • Experience with developing using Java on Android involving the use of a Google Map component.
  • Experience with wireless network protocols and familiarity with issues arising in distributed systems where components communicate using unreliable media.
  • Knowledge of one of the modern web front end libraries/frameworks (e.g. React, Angular)
  • Experience implementing and consuming RESTful APIs
  • OpenAPI
  • Experience with Java Swing
  • Jira, Bitbucket, Bamboo
  • CI/CD


  • Design, develop and execute software solutions to address business issues
  • Develop, test and implement software programs
  • Estimate and plan task execution, create tasks in JIRA for yourself and team members if needed
  • Actively lead code reviews, design reviews, and whiteboard discussions
  • Communicate with users, other technical teams, and senior management to collect requirements, describe software product features and technical designs
  • Release products with a 24x7 availability
  • Deploy new releases or assist in deployment
  • Document solutions and software code according to best practices
  • Lead standup meetings and track team progress
  • Report team progress to the company leadership
  • Participate in discussions on how to improve and optimize internal processes and practices
  • Mentor team members

Job Type: Full-time