Software Engineer III

Software Engineer III

Location:

2301 Renaissance Blvd, King of Prussia, PA 19406

• Manage the configuration data transfer for the Tax Determination Oseries product.
• Set up and maintain data configurations, manage authentication processes and generate reports.
• Ensure smooth operation of all non‑tax related functionalities within Oseries for Vertex On‑Demand, On‑Prem, and Cloud environments.
• Design and develop scalable and secure RESTful APIs and backend services using Spring Boot.
• Write and optimize SQL queries and object‑relational mapping configurations.
• Develop robust unit and integration tests using JUnit5 and Mockito.
• Troubleshoot and resolve production and QA issues via root cause analysis, debugging application logs, and implementing effective code fixes or configuration changes.
• Conduct end‑to‑end testing of new features using Postman, Swagger, and browser‑based UI testing tools.
• Facilitate Agile development processes through daily stand‑ups, sprint planning, retrospectives, and by managing deliverables and time tracking in Jira.
• Investigate and resolve test automation failures triggered by Git Hub Actions, ensuring reliability of the CI/CD pipeline.

• Bachelor’s Degree (or foreign equivalent) in Information Studies, Electronics Engineering, Computer Science, or a closely related field.
• Four (4) years of experience developing backend logic and enterprise applications using Java.
• Experience building RESTful APIs and microservices efficiently using Spring Boot.
• Experience deploying Lambda using AWS.
• Strong SQL skills, including writing complex queries and stored procedures.
• Experience working with authentication and authorization, specifically with OAuth and JWT.
• Experience designing and building RESTful APIs to communicate over HTTP.
• Experience writing and running unit and integration tests in Java applications using JUnit5 and Mockito.
• Eligible for up to 100% remote work within the continental United States.

Vertex is an affirmative action and equal opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, or protected veteran status and will not be discriminated against on the basis of disability.

If you are an individual with a disability and would like to request a reasonable accommodation as part of the employment selection process, please contact  or