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,orDallas 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.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:Current Professional Engineer license in Electrical Engineering.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 detail, and problem-solving skills for complex, fast-paced, large-scale projects.The anticipated salary range for this role is $154,200 - $223,200 per year (presented in good faith). In addition to base pay, employees receive a comprehensive benefits package, such as health insurance, retirement plans, and paid time off, and may be eligible for performance incentives, bonuses, commissions, or equity, depending on the role.Actual pay will depend on factors such as internal equity, skills, experience, education, certifications, and location. This range supports our commitment to pay transparency and compliance with applicable laws. Compensation may vary by work location, including remote arrangements.We disclose salary ranges and benefits in all required external and internal postings and will provide further details upon request at any stage of the hiring process. Applications are accepted on a rolling basis until the position is filled.Ameresco challenges the brightest, most talented, and creative individuals in the industry by providing an environment that fosters initiative and achievement. We are proud of our comprehensive and competitive employee benefits, including people-oriented insurance, investment, and incentive plans.All official communications from Ameresco will originate from an @ameresco.com email address. Any correspondence from other domains should be regarded as fraudulent. Please report any suspicious activity to the platform where the issue was encountered. For further inquiries or concerns, please contact us at 1-866-AMERESCO Ameresco is an Equal Opportunity Employer. SummaryLocation: United States - Tennessee - KnoxvilleType: Full time