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Herndon, VA, US

Function:  Digital Technology & Innovation
Job Category:  Digital Technology and Open Innovation

Senior SCADA QA Engineer


About the Company


Wärtsilä Energy Storage & Optimization (ES&O) is the leading global energy storage optimizer. Our mission is to deliver integrated energy solutions that build a resilient, intelligent, and flexible energy infrastructure – unlocking the way to an optimized renewable future. By integrating renewables, energy management technology and storage with traditional energy resources, we reinvent clean energy production from the largest and most complex grids to the most remote and essential microgrids. We play a key role in Wärtsilä’s vision towards a 100% renewable energy future through flexibility, reliability and integration and a more sustainable world for us all. We are seeking a mid-level software engineer to join our growing software team located in our software development center in Herndon, VA, USA.




  • As part of Wärtsilä’s ES&O GEMS software product team you will be the domain specific expert in testing industrial controls
  • Perform and revise, troubleshoot or expand existing programs and/or software for efficiency, needed adaptations, upgrades and performance standards
  • Design, implement, and maintain an intelligent, robust QA automation platforms using Python.
  • Take initiative to solve problems and design solutions associated with legacy systems as required.
  • Define, develop, and apply performance/scalability benchmarks
  • Help design new techniques and tests that automate the system-level testing of our software products.
  • Help build GEMS into a world class, intelligent power plant and grid controller, support the path forward to 100% renewable energy.
  • Develop feature and other technical documents.



  •  Knowledge of the industrial communication protocol such as Modbus, DNP3, IEC-61850 and OPC UA/DA. Experience in troubleshooting communication problems is a plus.
  •  Experience in any of the SCADA software such as Intellution, Wonderware, Iconics, WinCC, etc. is a plus.
  •  Demonstrated ability to coordinate complex work assignments and communicate effectively in a team environment
  •  Scripting for automation (Python, APIs, shell)
  •  Networking exposure with ability to understand Wireshark packet captures is a plus
  •  Passionate about product quality and testing techniques.
  •  Knowledge and experience of system automation and common tools and libraries.
  •  Experience testing backend servers and REST and/or WebSocket API’s.
  •  Knowledge and experience with Linux, Docker, and common system maintenance tools.
  •  Experience working in an agile development environment using common tools such as JIRA and Git.
  •  Should have experience developing and implementing performance test strategy based on best practice and including typical performance testing approaches: load generation, bottleneck analysis, and statistical analysis
  •  Ability to embrace a fast-moving environment and comfortable with quickly adapting to priorities.
  •  Any knowledge and/or interest in electrical concepts, power grids, renewable or green energy is always a plus.


Educational / Professional Requirements:


  • B.S. Degree in Computer Science, Engineering (Computer, Electrical, Mechanical), or I.T.


Why you and us


You will be a part of a global organization with local presence and work in an exciting and dynamic working environment with highly motivated and skilled co-workers. We offer interesting and challenging work tasks, as well as personal and professional development in a great team.


If you feel excited by being a part of this working environment and think your personal skills and qualities match the job requirements, we look forward to receiving your job application.


Successful applicant must be authorized to work in the USA without sponsorship.

We look forward to hearing from you. Qualified candidates must apply online:


Wärtsilä North America values our employees. We offer a competitive salary and comprehensive benefits package.   Wärtsilä North America is an EOE/AA employer.


Vaccination is a vital tool to reduce the presence and severity of COVID-19 cases in the workplace, in communities, and in the nation as a whole. The spread of COVID when working in customer facilities and project sites can lead to costly site shutdowns, for which Wärtsilä could be deemed financially responsible. Many local government authorities require proof of vaccination to enter the state or country, and many of our customers require proof of vaccination to be on a project site. In line with legal regulations Wärtsilä has implemented a COVID-19 policy on vaccination and testing to reduce the risk of transmission on Wärtsilä premises. Wärtsilä strongly encourages all employees to be vaccinated to protect themselves and other employees.



Nearest Major Market: Washington DC