Data Center BESS Principal Engineer

Fluence Energy•Arlington, VA

About The Position

The Data Center BESS Principal Engineer is a senior-level technical role with a focus on supporting Global DC Sales while being a key individual contributor within the Sales Engineering organization. This role is responsible for supporting Sales to lead end-to-end technical strategy and solution development, as well as for coordinating cross-functionally inside Fluence across the technical teams. The DC Solutions Principal will also serve as a thought leader who can support external engagements with industry advocacy and rule setting bodies.

Requirements

Ability to work as a team player, focusing on the organization’s success.
Ability to work in a matrixed organization, collaborating and sharing information across multiple teams.
10-15 years of electrical or mechanical experience in energy storage, electrical infrastructure, power generation, or related fields.
Proven track record closing complex, multimillion‑dollar B2B transactions with sophisticated counterparties (e.g., hyperscalers, colocation providers, utilities, developers, EPCs).
Deep understanding of data center power requirements and stakeholders and/or enterprise electrical infrastructure, in addition to experience with utilities, IPPs, developers, and/or large energy customers.
Expertise to engage deeply with engineering and operations teams on topics such as medium-voltage electrical distribution, load profiles, interconnection, power quality, controls/integration, and project execution constraints.
Exceptional communication, negotiation, and executive‑level presentation skills, with the ability to translate technical concepts into clear business outcomes.
Master’s degree in electrical engineering or related discipline required.
Professional Engineering license preferred.
Deep knowledge of energy storage technologies, grid services, and utility market design; ability to connect these capabilities to data center outcomes (reliability, cost, carbon, speed-to-power).
Deep knowledge of data center electrical infrastructure and project delivery (e.g., MV/LV distribution, substations, UPS and backup generation interfaces, protection schemes, commissioning) and how a utility‑scale BESS integrates at the site or grid level.
Experience with PSCAD modeling and hardware in the loop testing.
Ability to influence without authority and collaborate across a global matrix organization.
Highly organized, self‑directed, and comfortable operating in a dynamic environment.
Legally authorized to work in the United States at the time of application and throughout employment, without the need for employer sponsorship.

Nice To Haves

Professional Engineering license preferred.

Responsibilities

Lead end-to-end technical strategy and solution development for data center energy infrastructure opportunities from concept through contracting and execution.
Architect scalable system solutions aligned to customer requirements, utility constraints, and Fluence product roadmap.
Own grid studies, modeling, and technical evaluations supporting interconnection, contracting, and solution validation.
Serve as the primary technical interface across customers, utilities, regulators, EPCs, and OEMs to resolve risks and drive alignment.
Coordinate cross-functional teams (Sales Engineering, GID, Modeling, Product, Execution) to define requirements and ensure successful delivery.
Ensure continuity of technical intent through execution, commissioning, and onsite validation.
Keep abreast of and follow lessons learned from technical execution of advanced GFM BESS projects across Americas markets from development through commissioning and operational acceptance.
Define control philosophies and sequences of operation across BESS and hybrid plant configurations (PV, wind, thermal).
Drive alignment with utilities, ISOs, and regulators on interconnection, grid code compliance, and dynamic performance requirements.
Coordinate EMT/RMS modeling, controls validation, and compliance deliverables with inverter vendors, GID, and Modeling teams.
Support technical negotiations with key stakeholders (e.g., system operators, utilities) on performance, testing, and compliance strategy.
Keep abreast of and follow lessons learned from commissioning and testing to validate GFM performance and coordinated plant behavior.
Evaluate emerging technologies (e.g., SSTs, advanced controls) to shape Fluence’s roadmap and market entry strategy.
Develop business cases and executive materials to inform product, platform, and investment decisions.