Why Join Aegis Power Systems, Inc.?
Aegis Power Systems, Inc. is a leading designer and manufacturer of ruggedized power electronics supporting defense, aerospace, and industrial applications. Our products power mission-critical systems where reliability, security, and compliance are non-negotiable.
As part of our continued growth, we are strengthening our quality systems, engineering collaboration, and manufacturing capabilities to ensure our products consistently meet customer, regulatory, and internal standards. You’ll join a stable, hands-on environment where engineering directly impacts real mission outcomes.
Position Summary
The Discrete Power Electronics Engineer is responsible for the design, development, analysis, testing, and support of high-reliability power conversion products utilizing discrete power electronic components and custom circuit designs.
This position requires a strong working knowledge of power electronics related to power conversion and power factor correction, along with hands-on experience designing and troubleshooting power converters at the circuit and component level. Areas of responsibility may include power semiconductor selection, switching topology development, gate-drive circuitry, magnetics, control and feedback circuits, filtering, protection circuitry, and thermal management.
The Discrete Power Electronics Engineer will contribute to electrical designs throughout the product development lifecycle, including requirements review, circuit design, simulation, prototype development, design verification, troubleshooting, qualification, and transition into production.
This position works closely with senior engineering staff, Manufacturing, Quality, Program Management, and other cross-functional teams to develop ruggedized power solutions for demanding defense, aerospace, industrial, and high-reliability applications.
This position is based in Murphy, NC. Relocation package offered
What You’ll Do:
- Design and develop custom AC-DC, DC-DC, and/or DC-AC power conversion circuits utilizing discrete power components and custom circuitry.
- Support the development of power converter architectures and selection of switching topologies based on input/output requirements, efficiency, power density, thermal constraints, reliability, and environmental requirements.
- Design power stages using discrete semiconductor devices including MOSFETs, IGBTs, GaN devices, diodes, rectifiers, and other power switching components.
- Design and analyze gate-drive circuits, protection circuits, current and voltage sensing circuits, feedback networks, snubbers, clamps, filters, and supporting analog circuitry.
- Design, specify, and evaluate magnetic components including transformers, inductors, and common-mode and differential-mode filtering components.
- Perform circuit calculations, simulations, component stress analysis, tolerance analysis, worst-case analysis, and component derating.
- Analyze switching characteristics, losses, efficiency, transient response, stability, and control-loop performance.
- Select discrete electronic components based on electrical performance, switching characteristics, thermal performance, reliability, availability, lifecycle, and environmental requirements.
- Develop accurate and production-ready electrical schematics.
- Work closely with PCB designers to optimize layouts for high-current and high-voltage paths, switching loops, grounding, signal integrity, thermal performance, EMI/EMC, creepage and clearance, and manufacturability.
- Develop and maintain complete Bills of Material (BOMs) within the company’s ERP/DBA system.
- Support the development of thermal-management solutions for discrete power devices, magnetics, and other heat-generating components.
- Perform power-loss and thermal calculations and support the selection of heat sinks, thermal interface materials, airflow requirements, and other cooling solutions.
- Develop and support electrical test requirements, design tolerances, and acceptance criteria for power electronic designs.
- Perform hands-on prototype bring-up, laboratory testing, debugging, and troubleshooting of power conversion circuits.
- Utilize oscilloscopes, differential probes, current probes, power analyzers, electronic loads, function generators, and other laboratory equipment to evaluate converter performance.
- Perform root-cause analysis of electrical failures and recommend corrective design solutions.
- Participate in internal and customer design reviews.
- Support engineering verification, design validation, environmental qualification, EMI/EMC testing, and customer acceptance testing.
- Review and interpret customer specifications and applicable military, aerospace, safety, and regulatory requirements.
- Provide technical support to Manufacturing Engineering and Production during prototype builds, new product introduction, and ongoing production.
- Develop and maintain engineering documentation including design calculations, analysis reports, test procedures, test reports, specifications, drawings, and design-review documentation.
- Work collaboratively with senior engineers on complex power electronics design challenges and incorporate technical feedback into designs.
- Identify opportunities to improve power density, efficiency, reliability, thermal performance, manufacturability, and cost.
Required Technical Expertise
Working knowledge and hands-on experience in several of the following areas:
- Discrete power semiconductor circuit design
- MOSFETs, IGBTs, GaN devices, power diodes, rectifiers, and switching devices
- Switching power supply design
- AC-DC, DC-DC, and/or DC-AC power conversion
- Power converter topology selection and design
- Hard-switching and soft-switching techniques
- Gate-drive circuit design
- Magnetics design and component selection
- Feedback and control-loop design
- Stability analysis
- Current and voltage sensing
- Protection circuitry, including overcurrent, overvoltage, undervoltage, and thermal protection
- Snubber and clamp circuit design
- Input/output filtering
- EMI/EMC mitigation techniques
- Component derating and worst-case circuit analysis
- Power-loss and efficiency analysis
- Thermal management of power semiconductor devices
- High-voltage and high-current PCB layout considerations
- Prototype bring-up and component-level troubleshooting
Software and Laboratory Tools
- PSpice or equivalent circuit simulation and analysis software
- AutoCAD or equivalent engineering drafting software
- Microsoft Office Suite
- ERP/MRP systems; experience with DBA Manufacturing is preferred
- Oscilloscopes and high-voltage differential probes
- Current probes
- Power analyzers
- Electronic loads
- AC/DC power sources
- Digital multimeters
- Function generators and other electrical laboratory equipment
Preferred Defense & Aerospace Experience
Experience with ruggedized and high-reliability power electronics and/or familiarity with applicable requirements such as:
- MIL-STD-461 – EMI/EMC
- MIL-STD-810 – Environmental requirements
- MIL-STD-704 – Aircraft electrical power
- MIL-STD-1275 – Military vehicle electrical power
- DO-160 or similar aerospace environmental requirements
- Applicable UL safety requirements
- Component derating and high-reliability design practices
- Environmental and qualification testing
- AS9100 engineering and manufacturing environments
Key Competencies
- Strong power electronics design and troubleshooting capability
- Solid understanding of power converter operation at the circuit and component level
- Ability to develop and test power electronic circuits with appropriate engineering guidance
- Strong analytical and problem-solving skills
- Hands-on laboratory and troubleshooting capability
- Ability to independently resolve moderately complex electrical design problems
- Strong attention to detail and commitment to producing high-quality engineering work
- Strong technical documentation skills
- Effective communication and collaboration with cross-functional engineering and manufacturing teams
- Ability to manage multiple engineering tasks and priorities
- Willingness to learn from senior technical staff and progressively take ownership of increasingly complex designs
Required Qualifications:
- Bachelor’s degree in Electrical Engineering from an accredited four-year institution.
- 5+ years of professional electrical/electronic engineering experience, preferably involving power electronics or power conversion.
- Demonstrated experience with the design, development, or testing of power conversion circuits and products.
- Experience working with discrete power semiconductor devices and component-level circuitry.
- Working knowledge of switching power supplies and power converter design.
- Ability to perform hands-on laboratory testing, troubleshooting, and prototype development.
Preferred Qualifications:
- Master’s degree in Electrical Engineering with an emphasis in Power Electronics or a related discipline.
- 5+ years of direct power electronics design experience.
- Experience designing AC-DC, DC-DC, and/or DC-AC power conversion products.
- Experience developing high-reliability power conversion products for defense, aerospace, industrial, or other harsh-environment applications.
Benefits
Aegis Power Systems offers a comprehensive benefits package, including:
- Health, Dental, and Vision insurance
- Health Savings Account (HSA)
- Flexible Spending Account (FSA)
- Life insurance
- Paid time off
- Employee Assistance Program (EAP)
- Retirement plan
- Professional development assistance
- Relocation assistance
Work Location
- On-site in Murphy, North Carolina
Equal Employment Opportunity Statement
Aegis Power Systems, Inc. is an Equal Opportunity Employer. We celebrate diversity and are committed to building an inclusive environment for all employees. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, or veteran status.