Senior Test Automation Engineer - 12-Month Contract

We’re looking for a Senior Test Automation Engineer to help deliver the next generation of tunnel and traffic management systems for a major Sydney infrastructure project. You’ll play a key role in ensuring software and integrated SCADA systems are reliable, safe, and ready for commissioning.

In this contract role, you’ll design and build automated tests across functional, integration, and performance layers. You’ll work with Python, Behave/Gherkin, Selenium, JMeter, GitLab CI/CD, and OPC UA, collaborating closely with software, SCADA, and system engineering teams. Your work will directly support system validation in a safety-critical environment.

What you’ll do

• 
  

  Develop and maintain automated test suites and pipelines

  
  


• 
  

  Implement BDD testing using Behave/Gherkin

  
  


• 
  

  Build Python-based test frameworks for integration and performance

  
  


• 
  

  Test systems communicating via OPC UA and other industrial protocols

  
  


• 
  

  Identify defects, analyse root causes, and support developers

  
  


• 
  

  Provide clear test reporting and contribute to continuous improvement

  
  

What you bring

• 
  

  Strong experience with Selenium, JMeter, GitLab CI/CD, and Xray

  
  


• 
  

  Strong experience in automated testing and test framework development

  
  


• 
  

  Proficiency in Python and BDD tools (Behave, Gherkin)

  
  


• 
  

  Understanding of SDLC, test methodologies, and complex distributed systems

  
  


• 
  

  Ability to work independently in a fast-moving, multi-disciplinary environment

  
  

This role is ideal for someone who enjoys solving complex problems, working across diverse technologies, and contributing to a system with real-world impact.  The solution supports real-time monitoring and control of a major transport tunnel. Reliability isn’t a preference—it’s a public safety requirement. Your engineering work helps form the backbone of Sydney’s transport infrastructure.

Yunex Traffic is a proud equal opportunity employer, creating a work environment of diversity and inclusion. Our diverse workforce cultivates Innovation and excellence and in turn creates a workplace where our employees belong and prosper. Diversity and inclusion help us fully realise the potential of our people. As part of Yunex Traffic ownership culture, Yunex Traffic also genuinely supports reasonable flexible working practices that empower our employees to best meet work and personal commitments.