ON.energy

Principal BESS Engineer - Energy Infrastructure Projects

Houston, Texas, United States · Principal

Sponsorship not specified$25k-$30kDetected 6 days ago

Product ManagementProduct StrategySupply ChainAutoCADThermal AnalysisCadenceElectrical EngineeringPower ElectronicsLeadershipCommunicationMentoring

About the role

You should be comfortable operating with minimal direction, holding the bar on technical quality, and moving multiple product cycles forward in parallel without losing the thread on any of them.
Run multiple product development cycles in parallel - concept through prototype, FAT, field deployment, and revision - without losing depth on any of them.
Identify and execute the next-generation product moves - higher voltage class, alternate chemistries, new form factors - ahead of customer demand.

Set the architecture for the BESS and DC Cabinet product lines and own the technical roadmap across multiple concurrent product cycles.
Make the hard trade-off calls - cost vs reliability, performance vs lead time, standardization vs customization - and document the reasoning so future decisions inherit context.
Define the engineering standards, design rules, and review gates that other engineers on the team work to. Own the product-engineering bar.
Approve major design changes; act as the final technical authority on the change baseline.
Drive cycle cadence: decide what ships when, where the technical risk lives, what gets parallelized vs sequenced.
Own the strategic relationships with key vendors - DC Cabinet, battery, PCS, BoP. Decide the architecture of those relationships: sole-source vs dual-source, co-development depth, IP boundaries.
Mentor and develop other engineers on the team. Build their technical judgment, not just their throughput.
Run design reviews. Lead post-mortems on field issues and turn them into product changes.
Set the cadence and quality bar for ECR/ECN, FMEA, design reviews, and product handoff.
Partner with the commercial team on the most technically complex pursuits and proposals - proposing architectures, defending positions, structuring technical exhibits in LTSAs and supply agreements.

Direct experience with data center / UPS / mission-critical power or utility-scale BESS at the architecture level.

Set the technical qualification process used by the team and enforce it.
Represent ON.energy's product engineering externally - customer technical reviews, vendor escalations, industry working groups, certifying bodies, conferences.
Brief leadership on technical risk and product roadmap decisions.
Bachelor's degree in Electrical Engineering, Power Electronics, or a closely related technical field.
Owned multiple product development cycles end-to-end and independently.
You've personally taken more than one product from concept through prototype, FAT, field deployment, and revision - and the products are still in the field.
Architecture-level decision authority on previous BESS or DC equipment.
You've made the trade-off calls others built around, not just executed someone else's architecture.

We're looking for a Principal Engineer to set the technical direction for our BESS and DC Cabinet product lines and to own the product roadmap across multiple concurrent development cycles.

ON.energy is committed to equal employment opportunity and to maintaining a work environment free of harassment, discrimination, or retaliation.
Accommodations: If you need an accommodation during the application process, email recruitment@onenergystorage.com

This listing is sourced directly from ON.energy's careers page and normalized into a canonical job model.