
201 - 500 employees
📦 Logistics
💼 Consulting
🏭 Manufacturing
Logistics • Consulting • Manufacturing
EC Source Services, LLC is a construction solution provider and subsidiary of MasTec that engineers, procures, and constructs utility infrastructure projects. The company specializes in transmission, distribution, and substation work — including overhead and underground transmission systems, substations, switchyards, and EPC services — and handles projects ranging from large multi-state EHV transmission lines to smaller distribution and restoration work. EC Source Services operates nationwide and provides labor, equipment, testing, and commissioning for utility clients, with offices in Houston, Mesa, Sacramento, Gaffney, and Schertz.
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201 - 500 employees
📦 Logistics
💼 Consulting
🏭 Manufacturing
Logistics • Consulting • Manufacturing
EC Source Services, LLC is a construction solution provider and subsidiary of MasTec that engineers, procures, and constructs utility infrastructure projects. The company specializes in transmission, distribution, and substation work — including overhead and underground transmission systems, substations, switchyards, and EPC services — and handles projects ranging from large multi-state EHV transmission lines to smaller distribution and restoration work. EC Source Services operates nationwide and provides labor, equipment, testing, and commissioning for utility clients, with offices in Houston, Mesa, Sacramento, Gaffney, and Schertz.
• Perform power system studies, including load flow, short-circuit, arc flash, grounding, insulation coordination, and transient stability analyses • Support transmission line and substation design with study-driven recommendations for equipment ratings, relay coordination, and system configuration • Develop and review electrical system models using ETAP, ASPEN OneLiner, CYME, PSCAD, or PSS®E • Evaluate system performance under normal and contingency conditions for reliability and protection compliance • Prepare technical reports, calculations, and design documentation summarizing study results and recommendations • Collaborate with protection and controls, physical design, and project management teams • Support clients and internal teams during project planning, construction, and commissioning by providing technical guidance • Ensure deliverables meet IEEE, NESC, ANSI, NERC, and other industry standards and internal QA/QC procedures • Participate in client and interdepartmental meetings to present findings and discuss system performance solutions
• Bachelor’s degree in Electrical Engineering (Power Systems concentration preferred) • 2–5 years of experience performing electrical studies for transmission and/or substation projects • Proficiency with one or more power system analysis platforms, including ETAP, ASPEN, CYME, PSS®E, or PSCAD • Strong understanding of transmission and substation design principles, equipment operation, and protection coordination • Working knowledge of IEEE, NESC, NEMA, ANSI, and IEC standards • Excellent analytical, written, and verbal communication skills • Ability to work independently and collaboratively within a multidisciplinary engineering team • EIT certification required • Professional Engineer (P.E.) license preferred or ability to obtain within a reasonable timeframe
• Remote work arrangement • Professional development through work on major power infrastructure projects • Exposure to client, planning, construction, and commissioning phases • Collaboration with multidisciplinary engineering teams
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