Toronto, CA Herndon, VA, US

Function:  Engineering
Job Category:  Engineering

Senior Electrical 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.


Wartsila is looking for a Senior Electrical Engineer – Product Development.  The role will be part of the Hardware Engineering team. The team is responsible for the development of Wartsila’s integrated Battery Energy Storage Systems (BESS) products. The ideal candidate will be a self-starter that can work both independently and as part of an interdisciplinary team. The candidate should thrive in a fast paced, constantly changing environment while the industry and company go through substantial growth.


Preferred location(s) for this position is the Toronto, Ontario region. You could also work remote, in the US or Canada eastern time zone. 



  • Design, configure and validate control panels for Battery Energy Storage System (BESS), that to include component selection such as breakers, fuses and relays for DC and AC circuits, define system architect, site layout, functional safety analyses, auxiliary load estimation, HVAC sizing, and battery sizing/configuration.
  • Design electrical schematic, single line diagram, field wiring diagram in Auto-Cad Electrical or EPLAN and BOM in Auto-Cad Vault/Fusion for energy storage systems following UL508A and IEC61439-1/2 standards.
  • Evaluate product and system designs and configurations for compliance to relevant industry standards such as UL9540, NEC, IEC62933, UL1741, UL1973, and IEEE1574.
  • Perform load flow and short circuit analysis for DC and AC circuits.
  • Design and engineer cable schedules for AC and DC circuits including Single-line interpretation, ampacity calculation, and cable/termination selection.
  • Develop control solutions including I/O table, PLC selection, PLC logic development, testing, and deployment of solution into a production environment.
  • Evaluate product and system design and configuration for compliance to relevant industry standards.
  • Create testing specification, plan, and interconnection requirements, select adequate components and test equipment, develop/calculate settings and configuration, and execute in lab environment and/or on-site ensuring compliance to functional and QA requirements.
  • Develop product documentation such as product manuals, work instructions, flow charts and technical descriptions.
  • Maintain product NRTL documentation including critical component list .
  • Collaborate in a team environment and/or take charge of opportunities to develop optimal solutions for the product development programs.


Minimum Experience and Educational Requirements

  • BS EE degree required, graduate degree preferred.
  • 10+ years of electrical engineering experience focusing on designing and testing power systems and control panels preferably in the Battery Energy Storage System (BESS)
  • Ability to design electrical circuits for up to 1000 Volt AC and 1500 Volt DC ensuring compliance to common design standard.
  • Able to review project specification and interconnection requirements, select adequate PCS, and develop/calculate settings and configuration.
  • Experience designing and configuring Battery Energy Storage Systems (BESS)
  • Knowledge in embedded software development.
  • Working knowledge of industrial control philosophies, and communication protocols
  • Experience with AutoCAD Electrical, EPLAN, or similar schematic generation software
  • Problem solving and innovative mindset.
  • Maintain positive working relationships with customers, peers, subordinates, and vendors in a fast-paced environment.
  • Excellent communication skills.
  • Team player attitude
  • Willing to travel 20% of the time.




Last application date: 07/03/2024 


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.


The salary range for this position is $120K-145K.


The amounts listed are the base pay range; additional compensation may be available for this role, such as shift differentials, standby/on-call, overtime, premiums, extra shift incentives, or bonus opportunities.  Eligibility to participate in: the discretionary incentive plan assigned to the level of position upon offer of employment; medical, dental and vision coverage, 401(k) plan and flexible spending accounts, subject to plan terms; Company-paid benefits such as life insurance, short- and long-term disability, subject to applicable waiting periods.  Paid time off (PTO) is accrued on a per-pay period basis in accordance with tenure in the Company; a new hire can expect 17 days per year. Twelve (12) Company-paid holidays.


We look forward to hearing from you. Qualified candidates must apply online: https://www.wartsila.com/careers Individuals hired for positions that require on-site customer interactions and/or in-person travel may be required to be fully vaccinated against COVID-19 or other country-specific vaccinations, unless otherwise prohibited by law. Wärtsilä North America values our employees. We offer a competitive salary and comprehensive benefits package. Wärtsilä North America is an EOE/AA employer.