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Herndon, VA, US

Function:  Engineering
Job Category:  Engineering

PLC Control Engineer

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 for a more sustainable world for us all.




  • Program and configure PLC controller for Battery Energy Storage Systems (BESS)
  • Review system specification and develop PLC software
  • Select PLC hardware to fit application needed
  • Establish and own control system architect
  • Provide on-site and remote level support for factory testing, site testing and commissioning
  • Maintain and develop application software for PLC controllers, preferably B&R Automation, Weidmuller, or WAGO
  • Lead system troubleshooting and determine root causes and implement solutions to prevent recurrence
  • Evaluate different PLC vendors, technologies and provide comparison analyses.  
  • Develop control solutions including I/O table, PLC selection, PLC logic development, testing, and deployment of solution into production environment
  • Evaluate product and system designs and configurations for compliance to relevant industry standards
  • Develop test plans for component and manufacturing suppliers and execute them onsite ensuring compliance to functional and QA requirements
  • Participate in field testing and commissioning activities by developing test plans and collaborating with the field engineering team to execute and troubleshoot as needed
  • Develop and maintain product documentation such as manuals, application notes, and technical specifications
  • Collaborate in a team environment and/or take charge of opportunities to develop optimal solutions for customers and product development programs.


Minimum Experience and Educational Requirements


  • BS EE degree required
  • 5+ years of PLC programming experience, preferably on power systems, energy storage and renewable energy
  • Expert knowledge in programming, commissioning, and troubleshooting B&R automation PLC
  • Experience designing and configuring PLC, preferably for Battery Energy Storage System (BESS)
  • Working knowledge of industrial control philosophies and communication protocols
  • Solving customer’s needs and issues
  • Maintain positive working relationships with customers, peers, subordinates, vendors, shop and office in a fast-paced environment
  • Excellent communication skills
  • Team player attitude internally and externally
  • Willing to travel 20% of the time.



 Last application date: 21/12/2021


At Wärtsilä we value, respect and embrace all our differences, and are committed to diversity, inclusion and equal employment opportunities; everyone can be their true self and succeed based on their job-relevant merits and abilities.

This is Wärtsilä

Wärtsilä Energy leads the transition towards a 100% renewable energy future. We help our customers unlock the value of the energy transition by optimising their energy systems and future-proofing their assets. Our offering comprises flexible power plants, energy management systems, and storage, as well as lifecycle services that ensure increased efficiency and guaranteed performance. Wärtsilä has delivered 73 GW of power plant capacity in 180 countries around the world. www.wartsila.com/energy

Nearest Major Market: Washington DC