Job Title: Senior Electrical Substation Engineer Location: Tucson, Arizona Type: Contract Contractor Work Model: Hybrid Hours: 40 to 50 hours per week Start date: around September 1, 2025 Position Summary: System One is seeking a seasoned Senior Electrical Engineer with 15+ years of experience in substation design and commissioning, with a strong understanding of protection and control. While this role is not design-intensive, it requires deep technical knowledge to support all phases of project execution—from planning and design review to high-level construction oversight and commissioning support. Key Responsibilities: + Provide technical leadership on substation projects specializing in substation design and commissioning with a strong focus on protection and control + Collaborate with engineering, construction, and commissioning teams to keep projects on track and aligned with scope and schedule + Review engineering design packages and material specifications to ensure completeness and constructability + Monitor construction progress at a high level, ensuring compliance with design requirements and safety standards + Develop, review, and support implementation of commissioning procedures, including system testing and startup + Assist engineering project management with progress tracking, coordination, and resolution of technical issues Qualifications: + Bachelor’s degree in Electrical Engineering (BSEE) – required + 15+ years of experience in substation design and commissioning with a strong understating of protection and control + Demonstrated ability to interface effectively across engineering, construction, and commissioning disciplines + Strong working knowledge of substation equipment, protection schemes, schematics, and commissioning protocols System One, and its subsidiaries including Joulé, ALTA IT Services, and Mountain Ltd., are leaders in delivering outsourced services and workforce solutions across North America. We help clients get work done more efficiently and economically, without compromising quality. System One not only serves as a valued partner for our clients, but we offer eligible employees health and welfare benefits coverage options including medical, dental, vision, spending accounts, life insurance, voluntary plans, as well as participation in a 401(k) plan. System One is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex (including pregnancy, childbirth, or related medical conditions), sexual orientation, gender identity, age, national origin, disability, family care or medical leave status, genetic information, veteran status, marital status, or any other characteristic protected by applicable federal, state, or local law. #M-1 #LI-JC1 Ref: #275-Eng Kansas City System One, and its subsidiaries including Joulé, ALTA IT Services, CM Access, TPGS, and MOUNTAIN, LTD., are leaders in delivering workforce solutions and integrated services across North America. We help clients get work done more efficiently and economically, without compromising quality. System One not only serves as a valued partner for our clients, but we offer eligible full-time employees health and welfare benefits coverage options including medical, dental, vision, spending accounts, life insurance, voluntary plans, as well as participation in a 401(k) plan. System One is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex (including pregnancy, childbirth, or related medical conditions), sexual orientation, gender identity, age, national origin, disability, family care or medical leave status, genetic information, veteran status, marital status, or any other characteristic protected by applicable federal, state, or local law.