Principal Engineer, Advanced Power Engineering

Flex•Austin, TX

13d•Onsite

About The Position

Flex intends to spin off its Cloud and Power Infrastructure segment into a new, independent publicly traded company, which we’re calling SpinCo, until the name is unveiled. The spin is planned for Q1 2027. If the intended spin occurs, this role will support SpinCo, which will focus on critical digital infrastructure, delivering end-to-end power and thermal management solutions for AI data centers and other mission-critical applications. To support our extraordinary teams who build great products and contribute to our growth, we’re looking to add a Principal Engineer, Advanced Power Engineering located in Austin, TX. Reporting to the Chief Technology Officer, the Principal Engineer, Advanced Power Engineering will lead the research, development, and technical roadmap for next-generation data center power solutions that enable SpinCo’s integrated, productized data center strategy. This role is responsible for defining and advancing power architectures across medium-voltage and low-voltage systems, power distribution, energy storage, high-voltage and medium-voltage DC concepts, on-site generation integration, grid-interface technology, and power pods or skids. The role will partner closely with our power business units, manufacturing, supply chain, customers, and ecosystem partners to translate advanced power concepts into scalable, productized solutions. This is a hands-on technical leadership role. You will be in the details, generating architectures, models, specifications, and analysis yourself rather than only directing others to do so. We are looking for a leader who can run a full design-build cycle, set the technical bar by example, and is measured more by working hardware and validated designs than by decks and white papers.

Requirements

Bachelor’s degree in Electrical Engineering, Power Electronics, Energy Systems, or related technical field; Master’s or PhD preferred or equivalent experience.
12+ years of engineering experience in power electronics, data center power, critical power infrastructure, utility-scale power, or power products manufacturing.
Demonstrated leadership in electrical, mechanical, and/or systems architecture engineering disciplines
5+ years leading technical teams, advanced engineering teams, or architecture programs.
Deep knowledge of AC/DC power architectures, MV/LV systems, power conversion, energy storage, grid interconnection, redundancy, reliability, and data center power delivery.
Experience translating future technology concepts into executable product requirements, prototypes, and manufacturable platforms.
Strong customer-facing technical leadership with hyperscale, colocation, AI infrastructure, or critical power customers.
Hands-on power architecture and design experience, with a personal portfolio of schematics, models, and prototypes you drove to working hardware.

Responsibilities

Define and maintain the multi-generation power technology roadmap aligned to hyperscaler, leading silicon, grid-interface, and AI infrastructure requirements.
Lead applied R&D, architecture development, and prototype execution for advanced power subsystems, including power pods and skids, MV e-houses, advanced conversion systems, energy storage integration, sidecar architectures, and next-generation high-voltage DC reference designs.
Establish interface standards and integration requirements for power systems within SpinCo’s integrated data center platform.
Serve as SpinCo’s technical authority for advanced power in customer engagements, strategic partnerships, industry forums, and standards discussions.
Partner with Systems Architecture Engineering to ensure power systems are co-engineered with cooling, controls, IT infrastructure, and modular product designs.
Support technical due diligence for acquisitions, partnerships, and supplier ecosystem decisions related to power and energy infrastructure.
Mentor and develop a high-performing advanced power engineering bench across SpinCo, including close partnership with the cross-functional engineering teams responsible for specialized areas of the data center stack.