Lead Diagnostic Engineer

Summary

Giga Energy builds AI data centers and modular power infrastructure, combining equipment supply, engineering, construction, and real estate development capabilities. The Lead Diagnostic Engineer will serve as a technical field representative responsible for commissioning, testing, troubleshooting, repairing, and servicing power transformers at customer sites while supporting customer relationships, safety compliance, reporting, and continuous improvement.

Responsibilities

• Perform on-site installation oversight, startup, and commissioning of power and distribution transformers (oil-filled and dry-type) at customer facilities
• Conduct acceptance testing per IEEE/IEC/NEMA and customer specifications prior to energization
• Support equipment energization planning, outage coordination, and site readiness reviews with customers, EPCs, and project managers
• Interpret and work from single-line diagrams, winding/vector diagrams, control schematics, and equipment nameplate data
• Perform Turns Ratio (TTR) testing, winding resistance, insulation resistance (IR/PI), power factor/dissipation factor, and SFRA testing
• Conduct Dissolved Gas Analysis (DGA) sampling and interpret oil analysis results to assess transformer health
• Perform relay and protection testing where transformers interface with protective schemes
• Diagnose and troubleshoot On-Load Tap Changer (OLTC/LTC) mechanisms, cooling systems, and control/monitoring equipment
• Document all test results and produce clear, customer-ready technical reports
• Execute troubleshooting, corrective maintenance, repair, and end-of-life/retrofit services on transformers in the field
• Proactively identify potential equipment failures and recommend corrective or preventive actions to customers
• Support warranty investigations, root cause analysis, and field failure reporting back to Engineering and Quality
• Respond to emergency service calls, including after-hours and weekend support as required
• Serve as the primary on-site technical representative for Giga Energy, building and maintaining strong customer relationships
• Communicate job status, technical findings, and recommendations clearly to customers, contractors, and internal stakeholders
• Prepare material lists, technical quotations, and scopes of work for follow-on service opportunities
• Coordinate with site engineers, contractors, and internal Engineering/Quality teams during outages and installs
• Comply fully with OSHA, NFPA 70E (arc flash/electrical safety), and Giga Energy EHS policies on every site visit
• Maintain required certifications (e.g., NETA, OSHA 10/30, first aid/CPR) and complete ongoing safety training
• Ensure all high-voltage work follows lockout/tagout (LOTO) and permit-to-work procedures
• Maintain timely, accurate service reports, timesheets, expense reports, and job status updates
• Feed field observations (failure modes, install issues, design feedback) into Giga's NCR/SCAR and continuous improvement processes

Skills

• * Bachelor's degree in Electrical Engineering, Electrical Engineering Technology, or related field — OR equivalent experience (military electrical/electronics training, associate degree + relevant field experience)
• * 2+ years of hands-on field experience with power/distribution transformers, switchgear, or related power delivery equipment (entry-level candidates with strong internships/training programs will be considered)
• * Working knowledge of transformer testing: TTR, insulation resistance, DGA/oil analysis, power factor testing
• * Ability to read and interpret electrical schematics, single-line diagrams, and winding/vector diagrams
• * Willingness and ability to travel 50–75%, including domestic and potentially international sites
• * Valid driver's license; ability to maintain/obtain a passport
• * Physical ability to lift/move equipment components and work in industrial field environments (heights, confined spaces, outdoor conditions)
• * Experience with OEM transformer platforms (ABB, Siemens, GE, Hitachi Energy, Powell, ERMCO) or equivalent
• * Familiarity with On-Load Tap Changers (OLTC), cooling systems (ONAN/ONAF/OFAF), and bushings
• * NETA certification or working toward NETA Level II/III
• * Experience with protective relay testing and interpretation
• * Data center or mission-critical facility experience
• * Prior experience at a transformer OEM, utility, or independent testing/service organization
• This candidate must be open to 50-70% travel expectations

Qualifications

Must Haves

• * Bachelor's degree in Electrical Engineering, Electrical Engineering Technology, or related field — OR equivalent experience (military electrical/electronics training, associate degree + relevant field experience)
• * 2+ years of hands-on field experience with power/distribution transformers, switchgear, or related power delivery equipment (entry-level candidates with strong internships/training programs will be considered)
• * Working knowledge of transformer testing: TTR, insulation resistance, DGA/oil analysis, power factor testing
• * Ability to read and interpret electrical schematics, single-line diagrams, and winding/vector diagrams
• * Willingness and ability to travel 50–75%, including domestic and potentially international sites
• * Valid driver's license; ability to maintain/obtain a passport
• * Physical ability to lift/move equipment components and work in industrial field environments (heights, confined spaces, outdoor conditions)
• * Experience with OEM transformer platforms (ABB, Siemens, GE, Hitachi Energy, Powell, ERMCO) or equivalent
• * Familiarity with On-Load Tap Changers (OLTC), cooling systems (ONAN/ONAF/OFAF), and bushings
• * NETA certification or working toward NETA Level II/III
• * Experience with protective relay testing and interpretation
• * Data center or mission-critical facility experience
• * Prior experience at a transformer OEM, utility, or independent testing/service organization
• This candidate must be open to 50-70% travel expectations

Benefits

• Travel per diem
• Company vehicle or travel allowance
• Standard field service equipment provided
• Subsidized health, dental, and vision insurance
• Equity (options) in a rapidly growing startup
• 401(k) with 4% employer match
• Unlimited PTO
• Parental leave
• Healthcare and Dependent Care Flexible Spending Accounts (FSA) or Health Savings Account (HSA)
• Commuter benefits, where applicable
• Opportunities to collaborate in person at periodic team and company on-sites