Role Description IS International Services is seeking a Senior BESS Electrical Engineer to drive the engineering and technical review of utility-scale battery storage projects. In this fully remote senior position, you will own the electrical design process from concept through execution. You will mentor project teams, ensure seamless integration of low-voltage and medium-voltage components, evaluate balance-of-plant systems, and interface with cross-functional teams to deliver high-performing renewable energy assets. Key Responsibilities - Utility-Scale Design: Develop and review comprehensive engineering packages, including Single-Line Diagrams (SLDs), overall electrical layouts, grounding designs, and cable routing maps. - Component Integration: Specify and integrate critical equipment such as Power Conversion Systems (PCS), battery enclosures, medium-voltage (MV) / low-voltage (LV) transformers, and switchgear. - Technical Calculations: Perform and validate essential electrical engineering calculations, cable schedules, and sizing assessments for utility-scale systems. - Multidisciplinary Coordination: Lead the integration of Balance-of-Plant (BOP) systems, collaborating across engineering disciplines to maintain technical accuracy and project alignment. - Standards Compliance: Ensure all designs align with utility interconnection requirements and adhere strictly to NEC, NFPA, IEEE, UL, and IEC standards. Qualifications - Core Experience: 8+ years of total electrical engineering experience. - BESS Expertise: At least 3 to 5 years of direct experience dedicated to Battery Energy Storage Systems (BESS). - Software Proficiency: Strong hands-on experience performing power system modeling and engineering studies using ETAP and SKM. - Education: Bachelor’s or Master’s degree in Electrical Engineering. - Integrator Background: Previous professional experience working directly with utility-scale BESS integrators is highly desirable. - Licensure: A Professional Engineer (PE) license is preferred but not required for this position. - Compliance Knowledge: Deep, operational understanding of industry codes (NEC, NFPA, IEEE, UL, IEC) and the utility grid interconnection process. - Professional Skills: Excellent communication skills with a proven ability to thrive in a fast-paced, remote, cross-functional team environment.

• Design and implement electrical systems for hyper-scale data centers, including medium and low-voltage power distribution, backup power systems, and emergency systems • Develop and maintain electrical schematics, bills of materials, and installation drawings • Ensure compliance with industry standards, codes, and regulations, including National Electric Code (NEC) and International Electrotechnical Commission (IEC) standards • Collaborate with other engineers and stakeholders to develop specifications, design criteria, and project budgets • Analyze electrical systems to identify and resolve issues, including load balancing, capacity planning, and power consumption optimization • Monitor and maintain the electrical systems, including performing preventative maintenance, testing, and repairs • Develop and implement electrical safety procedures and training programs for technicians and other staff • Stay up-to-date with advancements in electrical engineering and data center technologies • Provides specialized technical input to supporting staff, acting as a mentor and leader for mid-level engineers • Approves and signs off on work, acting as Engineer of Record • Provides estimates for the engineering budget and schedule to meet requirements on large, complex projects • Leads technical client relationships and plays a major role in selling

Role Description AECOM is seeking a Senior Electrical Engineer, Data Center specializing in Hyper-scale Data Centers to act as Data Center Electrical Engineer Lead. The job incumbent will be responsible for designing, implementing, and maintaining electrical systems in large-scale data centers. This position is a remote opportunity and can be based out of any of AECOM's U.S. offices. The Electrical Engineer will play a critical role in ensuring the reliability, efficiency, and safety of our data center infrastructure. The ideal candidate will have a strong background in electrical engineering and experience working with high-density data centers. This position offers the flexibility of a remote work schedule and can be based from a variety of locations in the US where AECOM has an office. Although the position is primarily remote, periodic travel may be required for client meetings, key project milestones, onsite collaboration sessions, or other business-critical activities. Travel is expected to be occasional and scheduled in advance. In this role, you will have the opportunity to work with our teams around the world on high-profile, fast-paced data center projects for global clients. This is a hands-on, client-facing role with an opportunity for upward career mobility. Responsibilities - Design and implement electrical systems for hyper-scale data centers, including medium and low-voltage power distribution, backup power systems, and emergency systems. - Develop and maintain electrical schematics, bills of materials, and installation drawings. - Ensure compliance with industry standards, codes, and regulations, including National Electric Code (NEC) and International Electrotechnical Commission (IEC) standards. - Collaborate with other engineers and stakeholders to develop specifications, design criteria, and project budgets. - Analyze electrical systems to identify and resolve issues, including load balancing, capacity planning, and power consumption optimization. - Monitor and maintain the electrical systems, including performing preventative maintenance, testing, and repairs. - Develop and implement electrical safety procedures and training programs for technicians and other staff. - Stay up-to-date with advancements in electrical engineering and data center technologies, and recommend new technologies to improve the reliability and efficiency of our data center infrastructure. - Is accountable for project success in the electrical discipline. - Provides specialized technical input to supporting staff, acting as a mentor and leader for mid-level engineers. - Approves and signs off on work, acting as Engineer of Record. - Provides estimates for the engineering budget and schedule to meet requirements on large, complex projects. - Leads technical client relationships and plays a major role in selling. Qualifications - Bachelor’s degree in Electrical Engineering plus eight (8) years of relevant experience in electrical design and/or electrical engineering, with a focus on data center infrastructure, or demonstrated equivalency of experience and/or education. - Professional Engineer License (P.E.) or Professional Engineer Designation (P. Eng) is required. Preferred Qualifications - Bachelor’s degree in Electrical Engineering plus ten (10) years of relevant experience in electrical design and/or electrical engineering, with a focus on data center infrastructure, or demonstrated equivalency of experience and/or education. - Extensive experience in electrical engineering for data centers or other critical facilities. - Strong knowledge of NEC (NFPA70). - Strong leadership, communication, and interpersonal skills. - Ability to build and maintain strong relationships with clients. - Ability to think creatively and identify opportunities to enhance the client experience. - Experience working with building information modeling (BIM) software, specifically ACC Cloud. - Excellent leadership, communication, and interpersonal skills. - Experience with data center design and construction, including design criteria and industry standards. Benefits - Medical, dental, vision, life, AD&D, disability benefits. - Paid time off, leaves of absences, voluntary benefits. - Perks, flexible work options, well-being resources. - Employee assistance program, business travel insurance. - Service recognition awards, retirement savings plan, and employee stock purchase plan.

• Develop and review comprehensive engineering packages • Specify and integrate critical equipment • Perform and validate essential electrical engineering calculations • Lead the integration of Balance-of-Plant (BOP) systems • Ensure all designs align with utility interconnection requirements