Senior Electrical Engineer

Senior Electrical Engineer

The Senior Electrical Engineer will lead the design and implementation of electrical systems for mission-critical facilities, including data centers, advanced manufacturing plants, and other high-reliability environments. This role requires deep technical expertise in medium- and low-voltage power distribution, utility interfaces, standby generation, UPS systems, grounding, and redundancy strategies essential for 24/7 operations. The ideal candidate will have experience in designing electrical infrastructure that meets stringent uptime and efficiency requirements while coordinating with cross-disciplinary teams in a fast-paced, design-build environment.

The Specifics of the Role

• Lead design of medium-voltage (up to 35 kV) and low-voltage distribution, including MV systems from the point of interconnection or on-site substation through switchgear, transformers, standby generator plants, UPS systems, grounding, and redundancy topologies (e.g., N+1, 2N, distributed-redundant, block-redundant) for data centers and other high-availability environments.
• Perform short-circuit, coordination, and arc flash studies to optimize electrical system reliability and safety.
• Perform cable ampacity calculations, including Neher-McGrath analysis for underground duct bank thermal modeling, to size feeders and validate MV/LV distribution under data center loading conditions.
• Collaborate closely with architectural, mechanical, and structural teams to integrate electrical systems into overall project design.
• Manage client relationships and support construction execution, presenting technical solutions, providing field support, and resolving technical challenges to ensure alignment with operational goals.
• Mentor junior engineers, contribute to the continuous improvement of design standards and best practices, and stay current with emerging technologies and trends in the mission-critical industry.

Requirements

• BS degree in Electrical Engineering from an ABET institution required.
• 8+ years of experience in Electrical Engineering, with at least 3 years focused on mission-critical or data center projects.
• Professional Engineer (PE) License preferred, with the ability to attain licenses in multiple states; highly experienced unlicensed candidates with strong mission-critical design backgrounds are welcome to apply.
• Demonstrated experience designing medium-voltage (up to 35 kV) and low-voltage distribution systems, including utility coordination, generator plants, switchgear, protective device coordination, and cable ampacity analysis (Neher-McGrath / IEEE 399 / IEEE 835) for high-reliability facilities.
• Expertise in software tools such as SKM Power*Tools, ETAP, or EasyPower for power system analysis, and AmpCalc or CYMCAP for cable ampacity and duct bank thermal modeling.
• Strong knowledge of NEC, IEEE, NFPA 70E, and other relevant codes and standards.
• Experience working in a design-build or integrated project delivery (IPD) environment is a plus.
• Excellent communication, leadership, and problem-solving skills.

Some Things You Should Know

• No other builder can offer the collaborative design-build approach that Clayco does.
• We work on creative, complex, award-winning, high-profile jobs.
• The pace is fast!

Why Clayco and LJC?

• 2025 Best Places to Work – St. Louis Business Journal, Los Angeles Business Journal, and Phoenix Business Journal.
• 2025 ENR Top 400 – Top Data Center Contractor (Top 3).
• 2025 ENR Top 100 Design-Build Firms – Design-Build Contractor (Top 5).
• 2025 ENR Top 100 Green Contractors – Green Contractor (Top 3).

Benefits

• Discretionary Annual Bonus: Subject to company and individual performance.
• Comprehensive Benefits Package Including: Medical, dental and vision plans, 401k, generous PTO and paid company holidays, employee assistance program, flexible spending accounts, life insurance, disability coverage, learning & development programs and more!

Compensation

• The salary range for this position considers a wide range of factors in making compensation decisions including but not limited to: Education, qualifications, skills, training, experience, certifications, internal equity, and location. Compensation decisions are dependent on the facts and circumstances of each case.