Principal Engineer Medium Voltage Electrical

At Jabil (NYSE: JBL), we are proud to be a trusted partner for the world's top brands, offering comprehensive engineering, supply chain, and manufacturing solutions. With 60 years of experience across industries and a vast network of over 100 sites worldwide, Jabil combines global reach with local expertise to deliver both scalable and customized solutions. Our commitment extends beyond business success as we strive to build sustainable processes that minimize environmental impact and foster vibrant and diverse communities around the globe. The Principal Electrical Engineer – Medium Voltage (MV) serves as the senior technical authority for the electrical architecture, design governance, validation strategy, industrialization, and lifecycle support of medium-voltage power distribution products and systems (1kV–38kV). This role provides cross-program technical leadership, establishes engineering standards and design practices, resolves complex technical risks, and guides product decisions from concept through production release. The Principal Engineer works closely with customers, global engineering teams, manufacturing, quality, sourcing, regulatory, suppliers, and field support organizations to ensure solutions meet customer requirements, manufacturing capabilities, safety expectations, quality objectives, cost targets, and Jabil product lifecycle processes.Key Responsibilities
Own and govern the electrical architecture strategy for MV switchgear, substations, transformers, feeder systems, and power distribution equipment across assigned platforms or product families. Translate customer, regulatory, manufacturing, and lifecycle requirements into scalable engineering specifications, design rules, technical roadmaps, and release deliverables. Lead system-level electrical architecture decisions for protection systems, control systems, metering, power monitoring, communication networks, and power distribution schemes in alignment with product and customer requirements. Author, review, and approve protection and coordination philosophies, relay setting requirements, arc-flash mitigation strategies, grounding approaches, insulation coordination strategies, BIL requirements, and system selectivity objectives to ensure personnel safety, equipment protection, and system reliability. Provide technical direction for the selection and specification of MV circuit breakers, vacuum interrupters, bus systems, protection relays, instrument transformers, surge arresters, grounding equipment, and associated power distribution components. Establish communication architecture guidelines utilizing protocols such as IEC 61850, Modbus RTU/TCP, DNP3, Ethernet/IP, and other customer-required industrial communication standards. Define, review, and approve short-circuit, coordination, arc-flash, load-flow, grounding, and protection studies to ensure compliance, protection performance, and system reliability. Guide concept development, prototype builds, design verification, pilot production, production release, and post-launch engineering support activities across multiple programs. Drive critical engineering decisions that optimize product cost, performance, manufacturability, schedule, quality, reliability, serviceability, and safety. Establish design transfer expectations, support manufacturing readiness reviews, resolve production ramp issues, and guide engineering change implementation across global manufacturing sites. Ensure compliance with applicable standards and requirements including IEEE C37 series, ANSI C37, IEC 62271 series, NEC, NFPA 70E, NETA, UL requirements where applicable, utility requirements, and customer-specific specifications. Serve as the senior MV electrical engineering representative for customer technical reviews, architecture discussions, issue resolution, and product development decisions. Lead Design for Manufacturing (DFM), Design for Test (DFT), Design for Reliability (DFR), Design for Serviceability (DFS), and Value Analysis/Value Engineering (VAVE) initiatives. Define and oversee electrical validation and qualification strategies including dielectric testing, lightning impulse testing, BIL verification, temperature-rise testing, short-circuit testing, relay protection verification, controls validation, FAT, SAT, and arc-flash evaluations. Provide expert support for commissioning, field troubleshooting, corrective actions, and complex field issue resolution activities. Lead high-impact technical risk reviews, root-cause investigations, corrective actions, design governance reviews, and continuous improvement initiatives. Mentor engineers, review technical deliverables, and develop reusable standards, design guides, checklists, templates, and best practices for MV electrical engineering execution. Collaborate with global engineering, manufacturing, sourcing, quality, regulatory, suppliers, and customer teams to align technical decisions with business and program objectives.Required Qualifications
Bachelor's degree in Electrical Engineering;
Power Systems concentration preferred. 12+ years of electrical engineering experience, including significant experience in medium-voltage switchgear, substations, power distribution, renewable energy, utility, or industrial power systems. Demonstrated senior technical leadership across multiple NPI programs, product platforms, design releases, or successful product launches. Deep expertise in MV protection relays, relay coordination, insulation coordination, BIL requirements, grounding systems, arc-flash mitigation, electrical one-line diagrams, control schemes, metering systems, and power system studies. Experience integrating intelligent electronic devices (IEDs), PLCs, HMIs, protection relays, power quality meters, gateway devices, and automation systems within MV switchgear and substation systems. Experience integrating MV protection, metering, automation, and monitoring systems with SCADA platforms using IEC 61850, DNP3, Modbus RTU/TCP, Ethernet/IP, or similar protocols. Experience with utility interconnection requirements, grid compliance considerations, and customer-specific technical requirements. Experience with ETAP, SKM PowerTools, EasyPower, or equivalent power system analysis tools. Advanced proficiency with EPLAN and/or AutoCAD Electrical, including electrical schematics, panel layouts, wiring documentation, and configuration management. Knowledge of IEEE, ANSI, IEC, NEC, NFPA 70E, NETA, UL, utility standards, insulation coordination practices, dielectric design principles, and BIL requirements applicable to MV power distribution equipment and systems. Experience with PLM systems such as Windchill or equivalent. Familiarity with OSHA electrical safety requirements, lockout/tagout (LOTO), and electrical safe work practices. Strong ability to influence technical direction, resolve ambiguity, make risk-based engineering decisions, and communicate effectively with customers and executive stakeholders.Preferred Qualifications
Professional Engineer (PE) license preferred. Master's degree in Electrical Engineering, Power Systems, or related technical discipline. Experience integrating EMS, BMS, DCIM, microgrid controllers, remote monitoring platforms, and advanced energy management systems. Experience supporting global manufacturing operations, design transfers, production ramps, and engineering change implementation. Experience in data centers, industrial power, utility, renewable energy, energy storage, microgrid, or critical power markets. Lean/Six Sigma experience. Experience establishing engineering standards, design review governance, reusable technical libraries, or product platform strategies.Leadership Expectations
Provide enterprise-level MV electrical engineering guidance across programs, product platforms, and customer engagements. Lead complex MV electrical design reviews, technical risk assessments, architecture governance, and engineering decision forums throughout the product lifecycle. Mentor Lead Engineers and Senior Engineers;
strengthen technical capability, design discipline, and ownership across the engineering team. Establish and continuously improve electrical engineering standards, best practices, design guidelines, verification expectations, and governance processes. Influence cross-functional decisions by balancing technical depth, customer requirements, manufacturability, cost, quality, reliability, schedule, and compliance.Key Performance Indicators (KPIs)
NPI milestone achievement, technical readiness, and on-time product launch. First-pass qualification, validation, and certification success. Product architecture robustness, design reuse, and reduction of late-stage technical changes. Design-related field quality, warranty performance, and corrective action effectiveness. Product cost competitiveness, manufacturability, and margin improvement. Manufacturing readiness, design transfer effectiveness, and production ramp stability. Customer satisfaction, technical issue closure responsiveness, and quality of customer-facing technical communication. Engineering standards adoption, technical capability development, and design governance effectiveness.Working Conditions
Standard full-time position with a typical work schedule of 40 hours per week. Collaboration with global teams may occasionally require flexibility in working hours to accommodate different time zones. Travel up to 20% domestic and international as required. Office, laboratory, manufacturing, supplier, and customer-site environment exposure may be required.Working Location
Prince George, VirginiaWhat Can Jabil Offer You?
Along with growth, stability, and the opportunity to be challenged, Jabil offers a competitive benefits package that includes:Medical, Dental, Prescription Drug, and Vision Insurance with HRA and HSA options401K MatchEmployee Stock Purchase PlanPaid Time OffTuition ReimbursementLife, AD&D, and Disability InsuranceCommuter BenefitsEmployee Assistance ProgramPet InsuranceAdoption AssistanceAnnual Merit IncreasesCommunity Volunteer OpportunitiesThe pay range for this role is $126,100 - $227,000. Job-related, non-discriminatory factors used to determine the actual offered rate include qualifications and experience, geographic location, education, external market data, and consideration of internal equity. As part of the total rewards package, this position is eligible for a short-term incentive based on performance. In addition, Jabil offers benefits to enhance your health, wealth and resilient self. These include medical, dental, and vision insurance plans;
401(k) retirement plan and employee stock purchase plan;
and paid time off.Jabil, including its subsidiaries, is an equal opportunity employer and considers qualified applicants for employment without regard to race, color, religion, national origin, sex, sexual orientation, gender identity, age, disability, genetic information, veteran status, or any other characteristic protected by law.Accessibility Accommodation If you are a qualified individual with a disability, you have the right to request a reasonable accommodation if you are unable or limited in your ability to use or access Jabil.Com/Careers site as a result of your disability. You can request a reasonable accommodation by sending an e-mail to View email address on ca.hrm.tc or calling View phone number on ca.hrm.tc with the nature of your request and contact information. Please do not direct any other general employment related questions to this e-mail or phone number. Please note that only those inquiries concerning a request for reasonable accommodation will be responded to.#whereyoubelong #AWorldofPossibilities
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