Supplier Development Engineer

Wärtsilä is an innovative technology company known for being a forerunner in the Marine and Energy markets. Every day, we – Wärtsilians - put our hearts and minds into turning Wärtsilä's purpose of enabling sustainable societies through innovation in technology and services into reality. Our ultimate aim is to provide increased value to both our customers and society. New, game-changing ideas and continuous improvement have been part of our DNA since 1834. Together, we can create new business opportunities and more sustainable future that we can all be proud of. 

We want to transition the world towards a decarbonised and sustainable future. By pushing the boundaries of engineering and technology, we can make it work. We are always on the lookout for future-oriented talent – want to join the ride?

Wärtsilä Energy Storage is looking for a Supplier Development Engineer (Battery), The role will be part of the Supply Management group. This position be based in Suzhou.

What will you be doing?

For the global Energy Storage supplier base, the Supplier Development Engineer, Energy Storage is accountable for the Battery Cell, Module, PDU and BMS(Battery Management System) product quality assurance at suppliers as well as for suppliers compliance and continuous improvement of performance in terms of quality, delivery accuracy, lead time reduction, and productivity improvements to ensure conformance with product and project requirements as well as first time right deliveries. This position will closely work with Battery Integrator responsible Supplier Development and Quality Assurance team.

As a Supplier Development Engineer, Energy Storage your work will focus on these responsibilities:

• Drive the qualification of new and current suppliers and contractors
• Execute activities related to supplier evaluation, for example, supplier compliance assessment, supplier audits, and audit follow-up according to supplier audit plans
• Partner with supplier in new manufacturing process implementation followed by a transition to start-up, qualification, implementation, and ramp-up of the new production process
• Works with the supplier and executes process validation and test method validation. Partners with suppliers to define their process, tools, equipment, and ongoing controls
• Ensure quality inspections and audits at suppliers are planned and executed with the target to secure adherence to Wartsila quality requirements. Ensure transparency of information
• Ensure that reported quality issues and audit findings are analysed, root-caused and corrective actions agreed upon, implemented to prevent quality defects from reoccurrence
• Continuously improve suppliers and mitigate potential risks to achieve targets and collaborates in supplier development programs, as well as driving their performance by building and establishing effective correction and improvement actions
• Participates in product teams with cross-functional team members to qualify and improve supplier manufacturing processes and inspection methods
• Take ownership and action on Quality, Delivery and Cost activities utilizing defined Supplier Development tools
• Evaluates, selects, and applies standard engineering techniques, and procedures on supplied components and supplier manufacturing processes
• Organize and lead operational excellence initiatives at suppliers to support cost reduction and supplier performance improvement
• Conduct inspection and testing to secure a quality product

To be successful in this role, we expect you to have: 

• 5+ years experience of Battery Cell, Module, PDU and BMS(Battery Management System), electrical engineering, supplier development and/or quality experience in power systems, renewables or energy storage industry
• Product and process auditing experience, management system auditing experience with ESG, SA8000, ISO 9001, 14001 and 45001 or similar is preferred. Furthermore, certification within Lean and/or Six Sigma will be perceived as an advantage
• Experience in product validation and approval process such as Product Part Approval Process(in Wärtsilä, Wärtsilä Supplier and Part Approval Process)
• Strong interpersonal and communication skills and are capable of interfacing with numerous parties at all levels in a multicultural environment as a global team member in Supplier Development & Quality team
• Familiar with analytical techniques commonly used to investigate component defects and ability to deal with administrative as well as technical tasks.
• Excellent project management skills
• Strong bias for action and results orientation is critical
• Individual must be self-driven and self-motivated to learn and use that knowledge to produce results
• Able to trouble shoot and solve problems on the manufacturing line
• Strong solution-oriented approach, capability to implement and persistency to follow-up activities in order to ensure sustainability and quality
• Willing to travel 40% of the time
• You possess excellent English (both orally and written)

Why you and us 
You are valued – as your true self. At Wärtsilä we value diversity and are committed in supporting inclusive work community.  

Your growth is supported. We believe in continuous learning & teamwork. Wärtsilian community has your back when it comes to development opportunities – so you can develop beyond your potential. 

You get to make a difference. Innovation and sustainability are important for us. Every day, we put our hearts and minds into enabling sustainable societies through innovation in technology and services into reality.  

Contact & next steps
Submit your application before the deadline through our Careers portal. Applications through email will not be considered. After submitting your application you’ll receive a confirmation email. We try our best to get back to everyone within 2-3 weeks after application deadline.  

Please apply by 31/03/2026 at 23:59 Chinese Standard Time. Our recruiting tool recognizes the time zone where the job ad has been published and closes the application period according to same time zone

Last application date: 31/03/2026 

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. 

Please note that according to Wärtsilä policy, voluntary consent for a security check may be required from candidates being considered for this position, depending on the applicable country.

This is Wärtsilä 

Wärtsilä is a global leader in innovative technologies and lifecycle solutions for the marine and energy markets. Our team of 18,300 professionals, in more than 230 locations in 77 countries, shape the decarbonisation transformation of our industries across the globe. Read more on www.wartsila.com.