[Hiring] Senior High Voltage Electrical Engineer @JLL

Role Description

JLL is seeking an experienced Senior High Voltage Electrical Engineer to lead the design and engineering of critical electrical infrastructure for hyperscale data centers and mission-critical facilities. This role provides technical leadership for complex capital projects involving high voltage electrical systems, utility-scale substations, on-site generation, and renewable energy integration.

You will serve as the technical authority on data center electrical infrastructure projects, leading system architecture development, utility coordination, and engineering oversight from concept through commissioning. This position requires deep expertise in medium voltage and high voltage power distribution, substation design, and generation technologies specific to large-scale data center operations.

Key Responsibilities

• High Voltage Engineering Leadership
  • Lead design and engineering of high voltage electrical systems for hyperscale data center campuses including medium voltage (4.16kV-35kV) and utility voltage (69kV-230kV) distribution infrastructure.
  • Develop comprehensive electrical system architectures optimizing reliability, redundancy, and scalability for mission-critical computing loads with N+1, 2N, and 2N+1 configurations.
  • Design utility-scale substations serving multi-hundred megawatt data center campuses including primary and secondary substation configurations, ring bus schemes, and campus loop distribution systems.
  • Perform complex electrical system studies including load flow analysis, short circuit calculations, arc flash hazard assessments, transient stability analysis, harmonic analysis, and protective device coordination.
  • Lead utility interconnection strategy and design for developments requiring 100+ MW of utility capacity.
• Data Center Electrical Infrastructure
  • Architect electrical distribution systems for hyperscale data centers with power densities of 10-50+ MW per building and rack densities from 10-100+ kW.
  • Develop campus electrical master plans supporting phased build-out of multi-building data center campuses with total capacity exceeding 500 MW.
  • Design redundant power architectures supporting concurrent maintainability requirements.
  • Lead integration of sustainable power solutions including on-site solar arrays, battery energy storage systems (BESS), fuel cells, and microgrids.
• Substation & Generation Systems
  • Lead design of utility-scale electrical substations (69kV-230kV) serving hyperscale data center campuses.
  • Design on-site generation systems including emergency generators (5-20 MW units), natural gas generators, and combined heat and power (CHP) systems.
  • Engineer grid-scale battery energy storage systems (10-200+ MWh) supporting utility demand response, frequency regulation, renewable energy time-shifting, and backup power.
• Technical Leadership & Client Engagement
  • Provide technical leadership and mentorship to engineering teams developing high voltage engineering expertise.
  • Serve as trusted technical advisor to hyperscale clients on electrical infrastructure strategy, capacity planning, and capital investment decisions.
  • Lead technical due diligence for data center acquisitions evaluating existing electrical infrastructure condition, capacity, reliability, and upgrade requirements.
• Design Review & Construction Support
  • Lead comprehensive design reviews of electrical engineering deliverables ensuring technical accuracy, code compliance, and constructability.
  • Provide expert field engineering support during construction of high voltage electrical systems and substations.
  • Develop comprehensive commissioning plans and test procedures for high voltage electrical systems.

Qualifications

• Bachelor's degree in Electrical Engineering from ABET-accredited program
• 8-12 years of progressive electrical engineering experience with substantial focus on high voltage power systems, substation design, and mission-critical facilities
• Professional Engineer (PE) license in good standing or ability to obtain licensure in multiple states
• Deep expertise in medium voltage (4.16kV-35kV) and high voltage (69kV-230kV) electrical system design, substation engineering, and utility interconnection
• Comprehensive knowledge of data center electrical infrastructure including redundant power architectures and Uptime Institute Tier Standards
• Expert-level proficiency with electrical analysis software (SKM PowerTools, ETAP, EasyPower)
• Demonstrated experience leading utility coordination and interconnection processes for large power users (100+ MW)
• Strong technical leadership and communication skills

Preferred

• Master's degree in Electrical Engineering or Power Systems Engineering
• PE license active in multiple states
• LEED AP or sustainable design credential
• IEEE Senior Member status or active participation in professional societies
• Direct experience with hyperscale data center operators (AWS, Azure, Google Cloud, Meta) or large colocation providers
• Expertise in renewable energy integration including large-scale solar PV and grid-scale battery storage
• Advanced knowledge of microgrid design and distributed energy resources
• Experience with design-build and EPC project delivery methods
• Background in campus master planning and phased infrastructure development
• Expertise in digital substation technologies and IEC 61850 protocols

Benefits

• 401(k) plan with matching company contributions
• Comprehensive Medical, Dental & Vision Care
• Paid parental leave at 100% of salary
• Paid Time Off and Company Holidays
• Early access to earned wages through Daily Pay

Location

Remote – Atlanta, GA, Austin, TX, Boston, MA, Dallas, TX, Houston, TX, Lufkin, TX, Shreveport, LA

This position does not provide visa sponsorship. Candidates must be authorized to work in the United States without sponsorship.

If this job description resonates with you, we encourage you to apply, even if you don’t meet all the requirements. We’re interested in getting to know you and what you bring to the table!