Mechanical Engineer - Thermal Management

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.

Wärtsilä’s Energy Business is looking for a Mechanical Engineer – Thermal management for the Energy Storage & Optimization business. The role will be part of the hardware engineering team. 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.

The preferred location for this position is Wärtsilä’s location in Herndon, Virginia.

Main Responsibilities:

Develop and optimize battery module designs to meet specific requirements, such as energy density, power output, thermal management, and safety.

Design and develop mechanical, electrical, and thermal components for battery modules, such as cell holders, busbars, cooling systems, and enclosures.

Collaborate with cell suppliers to ensure compatibility and integration of cells within the battery module.

Collaborate with manufacturing teams to develop and optimize assembly processes, tooling, and fixtures.

Support the transition from prototype to mass production, including pilot builds and ramp-up activities.

Manage suppliers and projects to ensure timely program deliverables within budget

Develop various battery cell test experiments, document procedures, and preform the tests in a lab environment

Conduct CFD analysis using Ansys Fluent to investigate innovative thermal cooling solutions for battery systems

Digital Twin development of energy storage system in Matlab software environment - ECM and thermal model generation (1D circuit or ROM)

Design mechanical enclosures, racks, parts, and/or features intended to be used in the energy storage industry

Develop and document test procedures, assembly and installation instructions, and other document and system documentation

Collaborate in a team environment and/or take charge of opportunities to develop optimal solutions for customers and development programs

Support manufacturing and system deployment activities by collaborating to resolve issues and ensure products and systems are delivered to specification.

Minimum Experience and Educational Requirements:

MS degree required, PHD desired

3-5 years of product development and mechanical engineering experience

Experience with Solid works, Inventor, AutoCAD, Matlab,Simulink and Ansys

Experience with energy storage systems in preferred

Strong understanding of electrochemical energy storage principles and lithium-ion battery technologies.

Knowledge of heat transfer and thermodynamics

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

Entrepreneurial drive with hunter mind-set

Willing to travel up to 20% of the time

Able to speak and read Mandarin proficiently

Last application date: 29/04/2024

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. 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.

Successful applicant must be authorized to work in the USA without sponsorship. We look forward to hearing from you. Qualified candidates must apply online:

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.

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