Role Description We are seeking a senior Electrical Engineer to design Fluidstack's modular, factory-built electrical infrastructure - the electrical counterpart to our Manufacturing Engineering group. Speed-to-power at gigawatt scale depends on moving electrical scope from the field into the factory: modular e-houses, switchgear and PDU skids, prefabricated electrical rooms, and repeatable packaged power solutions. As the area SME, you will own electrical design for these productized solutions end to end - from equipment selection through design-for-manufacturability, vendor factory collaboration, factory acceptance testing, and site integration. You will turn one-off designs into standardized, versioned products that deploy across dozens of sites. Responsibilities - Own electrical design of modular and prefabricated power infrastructure for data centers: switchgear skids, modular electrical rooms, and modular data centers. - Apply design-for-manufacturability principles - standardization, tolerances, transportation and rigging constraints, factory workflows - so modules are repeatable, testable, and fast to deploy. - Develop and maintain standard designs, specifications, and configuration control for the modular product line, integrating lessons learned across deployments. - Support site integration and commissioning of modular solutions, feeding field findings back into product revisions. Qualifications - Bachelor's degree in Electrical Engineering. - 7+ years of electrical engineering experience, including data center or other mission-critical facilities. - Strong background designing modular electrical solutions for data centers - e-houses, skids, prefabricated electrical rooms, or packaged power equipment. - Solid working knowledge of the data center power chain: MV/LV distribution, switchgear, transformers, UPS, generators, ATS, and Busway systems. - Demonstrated design-for-manufacturability experience: designing equipment or assemblies for factory production rather than field-built construction. - Experience working directly with equipment manufacturers, including design reviews and factory acceptance testing. Preferred Qualifications - BIM/VDC proficiency (Revit, Navisworks, clash detection) and prefabrication planning experience. - Professional Engineer (PE) license. - Prior experience at a hyperscale data center operator, modular infrastructure manufacturer, or packaged power solutions provider. - Exposure to quality systems and production engineering (ITPs, first-article inspection, NCR processes). Benefits - Competitive total compensation package (cash + equity). - Retirement or pension plan, in line with local norms. - Health, dental, and vision insurance. - Generous PTO policy, in line with local norms. - The base salary range for this position is $200,000 - $250,000 per year, depending on experience, skills, qualifications, and location. - This range represents our good faith estimate of the compensation for this role at the time of posting. Total compensation may also include equity in the form of stock options. - We are committed to pay equity and transparency.

Role Description We are seeking a senior Substation Design Engineer to support HV/MV substation design across our data center campuses. This is an owner-side role: you will lead substation design from siting and interconnection studies through IFC, construction, FAT, and energization - directing EPCs, consultants, utilities, and equipment manufacturers across a multi-GW portfolio spanning ERCOT, PJM, MISO, and other regions. You will own the technical quality of design packages, lead the engineering studies that underpin them, and build the substation standards - Basis of Design, standard drawings, equipment specifications that allow Fluidstack to deliver repeatable substations at speed. Responsibilities - Lead HV/MV substation design (up to 345 kV and above) and MV distribution interfaces for hyperscale campuses, from concept through IFC and energization. - Review and approve EPC- and consultant-produced deliverables: physical/structural layouts, electrical drawings, protection & control packages, and construction documents. - Perform and review engineering calculations and studies: load flow, short circuit, arc flash, grounding and bonding, lightning, insulation coordination, relay coordination, and cable ampacity. - Develop scopes of work, RFPs, and equipment specifications for long-lead equipment (transformers, switchgear, breakers); run technical bid evaluations and witness factory acceptance tests. - Provide technical input to utility interconnection processes and agreements (ESAs/CDAs), coordinating with ISOs/RTOs and utility engineering teams. - Support construction, commissioning, and phased energization planning, including resolution of field issues and RCAs. Qualifications - Bachelor's degree in Electrical Engineering. - 8+ years of experience in HV/MV substation design (transmission and distribution voltages, up to 345 kV). - Demonstrated ownership of full substation design packages: one-lines/three-lines, physical layouts, grounding, raceway, and protection & control drawings. - Experience developing equipment specifications, running technical bid evaluations, and witnessing factory acceptance tests for major HV/MV equipment. Preferred Qualifications - Professional Engineer (PE) license. - Owner-side experience at a hyperscale data center operator or large industrial developer. - Direct experience with utility interconnection processes and technical inputs to ESAs/CDAs in ERCOT, PJM, MISO, or CAISO. - Experience with both AIS and GIS substation architectures. - Track record of standards authorship: Basis of Design documents, standard drawing libraries, commissioning scripts, responsibility matrices. Benefits - Competitive total compensation package (cash + equity). - Retirement or pension plan, in line with local norms. - Health, dental, and vision insurance. - Generous PTO policy, in line with local norms. The base salary range for this position is $200,000 - $250,000 per year, depending on experience, skills, qualifications, and location. This range represents our good faith estimate of the compensation for this role at the time of posting. Total compensation may also include equity in the form of stock options. We are committed to pay equity and transparency. Fluidstack is an Equal Employment Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, sexual orientation, gender identity, disability and protected veterans’ status, or any other characteristic protected by law. Fluidstack will consider for employment qualified applicants with arrest and conviction records pursuant to applicable law. You will receive a confirmation email once your application has successfully been accepted. If there is an error with your submission and you did not receive a confirmation email, please email careers@fluidstack.io with your resume/CV, the role you've applied for, and the date you submitted your application-- someone from our recruiting team will be in touch.

Role Description We are seeking a senior Electrical Engineer to own the architecture, standardization, and delivery of on-site and supplemental power across our data center campuses. This spans renewables power distribution (solar and wind), battery energy storage, on-site generation, and - critically - temporary power and mobile substation solutions that bring capacity online ahead of permanent utility delivery. As the area SME, you will define reference architectures that balance CAPEX/OPEX, reliability, and evaluate next-generation power technologies; and standardize design packages so quality is repeatable and project timelines shrink. You will serve as a technical escalation point for on-site power availability and performance issues, driving root cause analysis and lessons learned across the fleet. Responsibilities - Define the reference architecture for on-site and supplemental power generation and distribution, balancing CAPEX/OPEX and reliability goals. - Design and deliver temporary power and mobile substation solutions to energize facilities ahead of, or in parallel with, permanent utility infrastructure - including bridging power strategies that accelerate speed-to-power. - Lead electrical design and integration of renewables power distribution (solar and wind) and BESS into campus MV systems, including collector systems, interconnection, and protection interfaces. - Evaluate and adopt new power technologies (e.g., fuel cells, advanced battery storage, microgrid controllers) and develop the technical justification for major capital investments. - Serve as a technical escalation point for on-site power availability or performance issues, driving root cause analysis and lessons learned across sites. - Standardize design packages and operational procedures to ensure repeatable quality and minimize project timelines across the portfolio. Qualifications - Bachelor's degree in Electrical Engineering, Power Systems, Energy, or a related field, or equivalent practical experience. - 8+ years of experience in power systems, power generation, or power distribution engineering for grid-connected facilities. - Experience providing temporary power and/or mobile substations to facilities - including generator farms, rental fleets, mobile transformers/switchgear, and bridging power schemes. - Experience designing or integrating renewables power distribution (solar and/or wind), including collector systems and interconnection to MV distribution. - Strong working knowledge of MV distribution equipment: transformers, switchgear, generators, and associated protection and controls. - Proficiency performing or reviewing power system studies (load flow, short circuit, coordination, arc flash). Preferred Qualifications - Professional Engineer (PE) license. - Experience with utility and on-site power generation design and commissioning for data center supplemental power. - Experience with BESS, fuel cells, microgrid controllers, and grid support functions (demand response, voltage/frequency support). - Familiarity with ISO/RTO interconnection and NERC/FERC requirements (ERCOT, PJM, MISO, CAISO), including large-load ride-through solutions (STATCOM, synchronous condensers, BESS). Benefits - Competitive total compensation package (cash + equity). - Retirement or pension plan, in line with local norms. - Health, dental, and vision insurance. - Generous PTO policy, in line with local norms. - The base salary range for this position is $200,000 - $250,000 per year, depending on experience, skills, qualifications, and location. - This range represents our good faith estimate of the compensation for this role at the time of posting. Total compensation may also include equity in the form of stock options. - We are committed to pay equity and transparency.

• Walk us through your day-to-day and project-to-project workflows in detail • Talk through real (appropriately anonymized) projects so we understand the design intent behind work • Pressure-test product ideas and early prototypes: tell us, candidly, where they'd save real time, where they'd add risk, and where they fall apart against real practice • Help us map where electrical hands off to mechanical, plumbing, structural, and architectural - and where coordination and clash detection actually break down • Distill where the work is irreducible engineering judgment versus repetitive process that's ripe for automation