Senior Electrical Engineer, Houston, TX [Hybrid]

Senior Electrical Engineer Job Description Location: Houston, TX [Hybrid] Start : Immediate Type of Role : Permanent / Full time Level of Experience : Senior level 7+ years of experience Travel

Requirements

: up to 10% About Submer Submer enables organizations scaling AI to overcome the limits of traditional datacenters across power, compute density and efficiency. We design and deliver scalable, high-density AI datacenter infrastructure built around industry-leading liquid cooling, supporting everything from early AI deployments to full-scale production environments. Acting as a full-stack delivery partner, Submer provides advisory, design, build and IT integration through a single point of accountability, working with a deep ecosystem of technology specialists.

This end-to-end approach accelerates time-to-AI while reducing operational cost, complexity and environmental impact. The result is AI infrastructure that performs today, scales predictably and avoids the redesigns and inefficiencies slowing the market down. What impact you will have We are seeking an Electrical Engineer with strong experience in server-level power distribution and data center electrical systems.

This hybrid role bridges IT hardware and rack infrastructure - covering everything from server to rack power design. The ideal candidate will bring a systems-level perspective to innovate, design, and deliver next-generation data center solutions in partnership with both OEMs and hyperscalers.

Work closely with the rack supplier to integrate busbars, PDUs, power shelves, and cable routing within the rack while meeting mechanical, thermal, and serviceability constraints. Develop and review one-line and three-line diagrams, schematics, harnessing, and connection diagrams for the rack and its interfaces to facility power and CDUs/heat exchangers. Collaborate with mechanical and thermal teams to ensure electrical layouts are compatible with 1MW cooling design, including coolant manifolds, CDUs, and cable/busbar proximity to high-heat components.

, NEC/NFPA 70, UL/IEC, IEEE, OCP/OCP-ORV3 as applicable) for busbar systems, overcurrent protection, touch safety, and labeling. Define and validate protection and selectivity strategy (breakers, fuses, relays) for the rack, including fault scenarios, arc-flash implications, and coordination with upstream distribution. Specify and qualify electrical components (busbars, insulators, lugs, connectors, PDUs, contactors, relays, sensors, monitoring devices) for high-current, high-availability operation.

Lead DFMEA/FMEA, design reviews, and risk assessments for electrical and busbar designs, including failure modes such as loose connections, hot spots, arcing, and coolant leak interaction. Create and maintain design documentation: specifications, interface control documents (ICDs), test plans, FAT/SAT procedures, and installation and commissioning guidelines. Support prototype builds with the rack supplier and internal labs; perform and witness electrical testing (hi-pot, insulation resistance, ground-bond, load tests, temperature rise, continuity).

Support factory and field issue resolution through root-cause analysis, corrective actions, and design updates related to busbar and power distribution performance. Provide technical input to sourcing and supplier selection for busbar and rack vendors; evaluate DFM/DFx aspects and cost/complexity trade-offs.

Key Responsibilities

: Own the electrical design of the high power cooling rack architecture, including AC/DC distribution, busbar systems, grounding, bonding, and protection schemes from row-level feed to rack-level power entry.

Required Qualifications

Bachelor’s degree in Electrical Engineering or related discipline.