Sr. Manager, Engineering

SK battery America•Troy, MI

About The Position

As we continue to expand our footprint in both utility-scale BESS and emerging power solutions for data center infrastructure, we are seeking an experienced Sr. Manager, Application & Systems Engineering to join our growing Energy Storage team in the US. Starting as a high-impact individual contributor, this role is designed to transition into a leadership position, eventually overseeing the systems & application engineering team as the company, project scope, and requirements grow. Serving as a bridge between the company, its customers, and vendors, the Sr. Manager ensures technical excellence throughout pre-sales activities to contract execution. Core responsibilities include delivering hands-on technical sales support, optimizing system designs to enhance profitability and reduce risk, and leading technical contract negotiations. This role will be reporting to the Director of System Integration & Application engineering (technical leadership) at SK On ESS US Team.

Requirements

  • A bachelor's or master's degree in engineering (electrical, mechanical, or computer science) or a related field
  • A minimum of 7-10+ years in technical and engineering capacity.
  • Must have strong experience within the BESS industry, focusing on utility-scale projects or direct experience in energy storage system design and project management.
  • Experience supporting the technical execution of major utility-scale project contracts is highly desirable
  • Strong knowledge of Battery Energy Storage Systems (BESS), including how the cells, batteries, and modules are designed and integrated.
  • Skilled in designing entire systems, such as Power Conversion Systems, medium voltage transformers, substations, and Gen-Tie connections.
  • Well-versed in power electronics, SCADA systems grid requirements, and utility/interconnection processes.
  • Familiar with requirements and compliance processes for major markets like ISO-NE, NYPA, ERCOT, and CAISO
  • Familiarity with safety standards including NFPA 855, NFPA 68/68, UL 9540, UL9540A, and electrical safety standards such as NEC, IFC/IBC.
  • Familiarity with plant system standards such as IEEE2800 and IEEEP2800.2 is a plus
  • Proficiency with Microsoft Office
  • Demonstrated leadership, communication, negotiation, and problem-solving skills, with an ability to manage multipl project simultaeniously

Nice To Haves

  • experience with data-analysis or visualization tools such as Power BI is a plus.
  • Professional Engineer (PE) license is a plus

Responsibilities

  • Lead the design and architecture of utility-scale BESS solutions, including battery systems, EMS, PCS, and related system integration.
  • Serve as a technical authority for SK On energy storage solutions and customer-facing technical engagements
  • Lead pre-contract technical efforts and coordination with vendors supporting RFP activities for PCS, EMS, and other system components
  • Support Factory Acceptance Testing at SK On and vendor facilities and validate system performance prior to deployment
  • Support the development of testing methodologies, use cases, and reporting for BESS communication with utility grid and dispatch controllers
  • Provide technical leadership throughout commissioning, troubleshooting, and lifecycle support.
  • Deliver technical training to field personnel and internal stakeholders
  • Initially serve as a senior individual contributor, stepping into a managerial role to build and oversee the engineering team as the business scales.
  • Perform additional duties as assigned
  • Partner with commercial and sales teams to develop technically competitive solutions and address complex customer requirements
  • Participate in customer meetings and technical presentations to ensure alignment on solution requirements
  • Develop and maintain sales engineering and quotation tools to improve accuracy, consistency, and efficiency
  • Create and maintain technical presentations, documentation, and collateral highlighting SK On's BESS capabilities and technical differentiators.
  • Participate and drive optimal system designs and bills of materials incorporating SK battery technology, PCS, EMS, and MV Transformer package
  • Generate high-value documentation, including single line diagrams (SLDs), preliminary site layouts, performance guarantee and availability requirements, and scope of work documents
  • Drive Value Engineering through cost reduction efforts with vendors and system optimization sizing analysis
  • Support comprehensive technical responses to RFPs for integrators, IPPs, developers, and/or utilities
  • Support negotiations and development of technical contract exhibits related to commissioning, Factory Acceptance Testing (FAT), and Site Acceptance Testing (SAT), and other system-delivery requirements
  • Define and support performance, capacity, and availability guarantees and associated risk mitigation strategies
  • Collaborate closely with internal engineering, project management, and legal teams to align contract terms with project requirements and industry best practices
  • Manage and negotiate technical contractual exhibits for Long-Term Service Agreements (LTSA), such as those covering Capacity Guarantees, Round Trip Efficiency, and Availability Guarantees
  • Collaborate, maintain and negotiate product technical specifications and related contractual documentation with SK On's Korean engineering team
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