Director, System Engineering - Energy Storage - San Francisco, CA

Aine Crossan


Hyperion are partnered with an exciting long duration storage start-up that are working towards a 100% renewable energy future.


This is a small team of passionate people who are committed to helping the world transition to renewable energy technology. They are developing a new class of low cost, long duration energy storage systems.


The company’s technology has the potential to transform the electric grid, making renewables fully firm and dispatchable year-round and transmission capacity can be expanded without the need for new wires. If successful, the global electric system will be entirely reshaped.


The Position


We are looking for an experienced engineering leader to drive the development of our integrated energy storage system, specifically owning the mechanical, electrical, hydraulic (and other functional) integration from the reactor level to the ~ 1MW module/block level.


Additional responsibilities include development of the hardware controls and the development of the internal 1-100 kW engineering prototype systems.


The successful candidate will bring domain experience and a demonstrated track record of cross functional technical leadership to drive to significant milestones on aggressive timelines.


Job Function


Lead the design and configuration of power systems to scale the core electrochemical cell to >1MW product building block scale and control the core electrochemical building blocks for optimal cost/performance.

Definition of cost-optimizing architectures to stack cells to modules to fully-scaled, grid-connected, bi-directional power plants

Ex-cell current collection & power electronics

Cell and system monitoring and controls

Lead the design and build, and test cycles of integrated system prototypes

Hire, develop and lead a world-class team of engineers to achieve these outcomes




BS or MS in Electrical Engineering, Mechanical Engineering, or related field

10-15 years professional experience in electrochemical product design and development, preferably with a mix of early-stage development and later stage production experience. Previous experience in energy storage is preferred.

Deep experience in power systems and controls required.

Demonstrated track record of leading innovative cross-functional teams to deliver outstanding results on tight timelines and budgets

Broad hardware engineering experience

Integrated electrochemical design experience

Demonstrated track record of technical achievement in a management/leadership position

Ability to communicate technical detail at multiple levels, for multiple audiences

Big picture, innovative thinker

Track record of recruiting and hiring world-class technical talent




Enjoy the fast paced, results driven environment of a start-up

Excellent organisational, communication and presentation skills is a must!

Hands-on approach to creative engineering problem solving; willing to “roll up the sleeves” when needed

Comfortable using cutting edge modelling tools and approaches to enable rapid design iteration and improvement

Data-driven decision maker with high attention to detail

High personal accountability with a team first approach

Able to work well in cross-disciplinary project teams and deliver results

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