Senior Electrical Engineer - Mission Critical Power Systems

Ameresco, Inc. (NYSE: AMRC) is a leading energy infrastructure company delivering integrated solutions that provide reliable power and modernize infrastructure. Since 2000, we have served as a trusted partner to public and private sector customers across North America, the UK and Europe, delivering over $15 billion in solutions and contracting more than 5 GW of energy resources .

At Ameresco, we integrate energy resources and modernize the built environment through innovative infrastructure solutions that improve reliability, optimize performance, strengthen resilience, and support long-term sustainability. Join us in building the infrastructure that powers the future. Explore opportunities to make a meaningful impact while growing your career with a company at the forefront of energy innovation.

Ameresco is seeking a Senior Electrical Engineer to support the development, design, procurement, construction, commissioning, and operation of large-scale power generation and electrical infrastructure projects serving mission-critical data center facilities.

This position will provide technical leadership for projects incorporating natural gas generation, renewable generation, fuel cells, battery energy storage systems, microgrids, utility interconnections, substations, and medium- and high-voltage electrical distribution systems. The engineer will support projects from early-stage due diligence and conceptual design through detailed engineering, construction, energization, and commercial operation.

The position can be based in a hybrid arrangement in Knoxville, TN, Phoenix, AZ, or Dallas TX . Occasional travel to customer locations, project sites, vendor facilities, and commissioning activities will be required.

Responsibilities:

• •Lead electrical engineering activities for large-scale, mission-critical data center power projects, including on-site generation (engines, turbines, solar PV) and storage, substations, utility interconnections, microgrids, and medium- and high-voltage distribution systems.
• •Develop and document the electrical basis of design based on customer requirements, anticipated data center load profiles, reliability objectives, utility requirements, project phasing, equipment capabilities, and contractual performance guarantees.
• •Develop conceptual and preliminary electrical designs, including one-line diagrams, electrical site layouts, generation and distribution configurations, substations, collector systems, auxiliary power, station service, grounding, lightning protection, and protection, control, metering, and communications architectures.
• •Establish design criteria for reliability, redundancy, availability, maintainability, system stability, fault-current capability, load acceptance, transient response, black-start capability, and phased load growth.
• •Perform or oversee load flow, short-circuit, protection coordination, arc-flash, motor-starting, harmonic, grounding, cable ampacity, transient-stability, reactive-power, voltage-control, and generator or inverter-resource integration studies.
• •Develop technical requirements and procurement specifications for substations, transformers, switchgear, generators, energy storage systems, protective relays, instrument transformers, conductors, bus systems, grounding systems, auxiliary systems, and other electrical balance-of-plant equipment.
• •Support technical evaluation of equipment availability, performance, delivery schedules, commercial exceptions, warranties, testing requirements, and long-term service considerations.
• •Lead or support utility interconnection applications, system-impact studies, facility studies, interconnection agreements, and coordination with utilities, independent system operators, transmission providers, and authorities having jurisdiction.
• •Review customer load data and transient load profiles to confirm that proposed generation and storage systems can support steady-state and dynamic load conditions.
• •Provide technical oversight and quality control of third-party engineers of record, including review of studies, calculations, drawings, specifications, equipment schedules, and issued-for-construction documents.
• •Facilitate electrical design reviews, constructability reviews, hazard assessments, technical workshops, and customer presentations.
• •Review commissioning procedures and test results for generators, transformers, switchgear, protective relays, controls, battery systems, and electrical balance-of-plant equipment.
• •Perform other duties as required.

Minimum Qualifications:

• •Bachelor of Science degree in Electrical Engineering from an accredited college or university.
• •Current Professional Engineer license in Electrical Engineering, or ability to obtain licensure in applicable project jurisdictions.
• •Minimum of 8 years of progressively responsible electrical engineering experience, including significant experience with power generation, substations, utility interconnection, industrial power systems, or mission-critical electrical infrastructure.
• •Demonstrated experience developing and reviewing medium- and high-voltage electrical systems.
• •Demonstrated experience with power-system studies, electrical equipment specifications, protection and control systems, and electrical design documentation.
• •Ability to review confidential US security information.

Additional Qualifications:

• •Experience supporting projects through development, design, procurement, construction, commissioning, and operation.
• •Ability to review and interpret one-line schematics, wiring diagrams, studies, specifications, construction drawings, and commissioning documentation.
• •Working knowledge of applicable NFPA, IEEE, ANSI, NEMA, UL, National Electrical Code, utility, and jurisdictional requirements.
• •Strong written and verbal communication skills, including the ability to explain complex technical issues to customers, project leadership, vendors, contractors, and multidisciplinary teams.
• •Ability to manage multiple complex assignments, establish priorities, meet schedules, and collaborate with geographically distributed teams.
• •Ability to travel to project sites, customer meetings, vendor facilities, and commissioning activities as required.
• •Experience designing electrical infrastructure for hyperscale, colocation, or other mission-critical data center facilities.
• •Experience with ETAP, SKM PowerTools, EasyPower, PSCAD, PSS/E, PowerFactory, ASPEN, or comparable electrical analysis software.
• •Experience with large on-site power plants using reciprocating engines, combustion turbines, fuel cells, battery energy storage systems, or mixed generation assets.
• •Experience with utility-scale or industrial substations operating at 69 kV and above.
• •Experience with islanded power systems, microgrids, grid-forming resources, black-start systems, load shedding, generator dispatch, and restoration sequences.
• •Experience integrating inverter-based resources with synchronous generation.
• •Experience evaluating dynamic data center loads, including rapid load changes, block loading, uninterruptible power supply systems, and AI or high-performance-computing load profiles.
• •Proficiency with AutoCAD, Revit, BIM, Bluebeam, and Microsoft Office applications.
• •Experience with SCADA, energy management systems, microgrid controllers, plant controls, protective relays, metering, and industrial communications protocols.
• •Experience preparing or reviewing utility interconnection applications and associated load-flow, short-circuit, protection, stability, and facility studies.
• •Experience working within an EPC organization or an architectural and engineering consulting firm.
• •Experience supervising engineers, managing consultants, and reviewing engineer-of-record deliverables.
• •Familiarity with project cost estimating, equipment procurement, technical bid evaluations, construction schedules, and commercial risk assessment.
• •Strong leadership, initiative, attention to det