Field Service Engineer - Rotary UPS

Overview About IEM Industrial Electric Mfg. (IEM) is the largest independent full-line manufacturer of custom power distribution systems in North America. Founded more than 75 years ago in Fremont, California, IEM grew alongside Silicon Valley and today operates over 1.7 million square feet of manufacturing capacity. With $1B+ in annual sales and 10,000+ commissioned projects across technology, data centers, commercial, energy, utilities, healthcare, industrial, and infrastructure markets, IEM continues to deliver exceptional product quality, dependable service, and the flexibility to meet complex technical requirements at scale. Job Summary The Senior Field Service Engineer – RUPS Systems specializes in rotary UPS power system distribution builds, mechanical and generator integration, system integration, start-ups, and preventative maintenance programs. This role requires advanced technical expertise, mechanical aptitude, leadership skills, and hands-on field experience with electrical control systems and rotating equipment such as generators and flywheels. Strong troubleshooting skills and a commitment to delivering high-performance power solutions in data centers, hospitals, industrial facilities, and utility-scale environments are essential. This is not a typical UPS engineer or technician role. A strong background in traditional static UPS systems may not be advantageous for this position. The ideal candidate will have experience with mechanical systems, generators, and rotary equipment, and be comfortable commissioning complex power systems in the field. You will act as the front-line expert for bringing large-scale RUPS systems online, resolving technical issues, and training others. This role will provide technical software and hardware troubleshooting support to the IEM customer base on-site throughout North America while performing start-ups, retrofits, or preventative maintenance. You will work with cross-functional IEM teams to integrate current and new technologies, commission complex generator and RUPS systems, optimize existing power infrastructure, and ensure seamless operation across our power products as defined by the customer’s RUPS design and sequence of operations (SOO). You will serve as the point of contact for all field service personnel related to RUPS startup, generator support, preventative maintenance, 24-hour emergency response, and remote technical assistance. Key Responsibilities Lead and perform on-site startup, commissioning, and preventative maintenance of RUPS systems, including generator integration, flywheel validation, and facility electrical infrastructure. Perform functional testing, load bank testing, system synchronization, and complete system validation to ensure all components meet performance specifications. Troubleshoot and resolve complex electrical and mechanical issues related to generators, flywheels, switchgear, control systems, fuel systems, and coupling assemblies. Follow a scientific step-by-step process to troubleshoot equipment issues. Capture data and troubleshooting steps concisely and accurately to facilitate effective communication to internal and external parties. Work directly with 3rd party equipment vendors and customers to help resolve recurring issues with vendor equipment within IEM’s integrated RUPS systems. Perform functional tests, load tests, synchronization, and RUPS system validation. Troubleshoot and resolve complex electrical and mechanical issues related to generators, flywheels, switchgear and related control systems. Interface with clients, contractors and internal IEM teams during commissioning and acceptance testing. Ensure all startup and commissioning documentation, test reports, onsite daily reports and required customer records are completed, submitted accurately and on time. Provide technical support and guidance during new installations and system upgrades. Train Field Service junior technicians on startup, commissioning procedures, troubleshooting protocols, preventative maintenance and safe operation of the equipment. Maintain compliance with all industry and company safety standards, procedures and client-specific safety protocols. Communicate with Product Engineering and Design Teams regarding product bulletins that would affect service, software upgrades, product upgrades or maintenance factors. Travel to customer sites to lead commissioning activities with junior techs/engineers or complete commissioning independently. As required, travel to IEM manufacturing or field service offices to participate in or lead training exercises, and to participate in factory witness/shop testing. Assist with project start-up and resolving punch list items found at the jobsite. Coordinate with customer site superintendents or project managers to update punch lists and ensure jobs are closed out correctly. Provide detailed field trip reports that list issues found onsite to IEM manufacturing facilities and work with production, service and engineering teams to resolve deficiencies. Work with Field Service Leads to schedule additional field resources and/or teams to cover service needs. Demonstrate proven ability to manage complex power distribution projects, strong technical aptitude and good communication skills. Performs other duties as required by supervisor. Power System Integration Lead and support field integration of new RUPS and generator technologies with existing infrastructure, ensuring system compatibility and optimal performance. System Optimization Analyze system performance and implement improvements to enhance efficiency, reliability and scalability of existing power systems on customer sites. Technical Skills Proficiency in power/automation programming languages and ladder logic (IEC, Python, Java, SQL, HTML). Strong hands-on experience with rotating equipment, diesel generator systems, and mechanical diagnostics. Experience with electrical troubleshooting, including relay testing, load bank setup, and flywheel system commissioning. Experience with load bank testing, grounding systems and protective relay testing. Ability to read and interpret electrical drawings, schematics, and one-line diagrams. Proficiency with diagnostic and testing tools (oscilloscopes, megohmmeters, etc.). Experience with industrial power system controls and monitoring technologies. Communication Protocols (Modbus/TCP, OPC, DNP3, ARP, IoT, DHCP, and IP). Familiarity with the TCP/IP suite. Experience with Loop2k and Modscan. Ability to analyze and interpret engineering documents, codes, standards and technical procedures. Experience with RUPS power system controls engineering, including ATO programming in PLCs, protective relays and HMIs. Strong verbal and written communication skills to convey technical information to both technical and non-technical stakeholders. Excellent analytical and problem-solving skills, with the ability to troubleshoot complex power systems with field service personnel remotely or in person. Basic Qualifications BSEE or MSEE Minimum 4 years of field experience working with RUPS-UPS power systems, rotary systems, or generator-based power systems. Prior experience in commissioning engineering, power systems integration, or generator field service strongly preferred. 4 years’ experience as an electrical engineer Professional Engineer (PE) License a Plus Proficient in Microsoft Office applications A strong desire to grow and develop with a passion for providing excellent customer service OSHA 10/30 certification NFPA 70E certification Supervision Of Personnel None Physical/Mental/Environmental Physical Demands: Activities: Sitting – 20%; Walking/Standing – 80%. Lifting: Must be able to lift a minimum of 25 lbs. Vision: Long periods of working in the field on IEM equipment. Mental Demands : Requires the ability to maintain attention to detail and focus on tasks despite potential interruptions and a busy work environment. Environment: Work duties will be performed in the field on construction sites in hot or cold environments. Travel: 100% Compensation The hourly range for this role is $50 - $55 per hour, based on location, experience, and qualifications. Benefits Competitive salary and performance-based incentives. Health, dental, vision insurance and 401K. Paid time off and holidays. Professional development and training opportunities. This job description outlines the key responsibilities and qualifications for the Field Service Engineer-RUPS systems. We are looking for someone ready to contribute to the success of our field service operations by bringing excellent technical, organizational and interpersonal skills to the team. Why Join IEM At IEM, you’ll join a team that powers some of the world’s most ambitious projects. We’re engineers, makers, and problem-solvers who thrive on tackling complex challenges and delivering solutions that keep industries moving forward. If you’re driven, collaborative, and ready to make an impact, we’d love to hear from you. Your creativity and passion can help us achieve great things—come be part of the journey. Learn more about IEM at We offer comprehensive and competitive benefits package designed to support our employees\' well-being, growth, and long-term success. View a snapshot of our benefits at Recruiting Scams Beware of recruiting scams. IEM never charges candidates fees, and all recruiter emails come from an @iemfg.com address. If you suspect fraudulent activity, do not share personal information and report it to us at iemfg.com/contact Non-Discrimination Statement IEM does not discriminate against any applicant based on any characteristic protected by law. Privacy Information collected and processed as part of your IEM Careers profile, and any job applications you choose to submit is subject to IEM\'s Workforce Member Privacy Policy. #J-18808-Ljbffr Industrial Electric Mfg. (IEM)