Principal Hardware Engineer

Raytheon UK; Glenrothes; Hybrid; GBP 50,000 - 80,000; Full time

Benefits offered by this job

25 days holiday plus statutory public holidays

Contributory Pension Scheme

Company bonus scheme

Enhanced family-friendly policies

Job summary

Raytheon UK is seeking a Principal Hardware Engineer specializing in power electronics design. The successful candidate will lead a multi-disciplinary team in developing aerospace and defense hardware, ensuring compliance with industry standards. Required qualifications include significant experience in power electronics, PCB design, and systems engineering. Benefits include competitive salary, flexible working options, and a contributory pension scheme. This role is based in Glenrothes/Livingston, Scotland.

Qualifications

• Significant experience in power electronics design.
• Proven ability to transition designs from prototype to production.
• Experience with custom or semi-custom magnetic components.

Responsibilities

• Lead design and development of power electronic systems.
• Ensure designs adhere to industry and regulatory standards.
• Produce high-quality technical documentation.

Skills

Power electronics design

Systems engineering

PCB design

Embedded digital electronics

Simulation using SPICE and Simulink

Technical leadership

Tools

SPICE simulation tools

Mentor Xpedition

Job description

Principal Hardware Engineer (Power Electronics)

Location: Glenrothes / Livingston, Scotland, United Kingdom.

Date Posted: 2026-05-13

About the Role

Raytheon Electronics offers a senior, hands‑on technical leadership position focusing on power electronics design for aerospace and defense hardware. This role involves leading multi‑disciplinary teams, defining system architecture, and guiding products from concept to production.

Responsibilities

• Provide technical leadership within a multi‑disciplinary design team.
• Lead the design and development of power electronic systems, from concept through qualification.
• Lead by example with respect to safety and quality, embracing internal and external processes.
• Resolve complex technical problems across new developments and existing products.
• Capture, interpret, and derive customer requirements into clearly bounded design specifications.
• Produce high‑quality schematics, simulations, PCB designs, and support component selection, evaluation, and verification.
• Direct design reviews, commissioning, debugging, fault diagnosis, and lifecycle support.
• Design to cost and schedule, working effectively within approved budgets.
• Ensure designs meet relevant industry, customer, and regulatory standards.
• Support configuration control and managed design change.
• Produce clear, concise technical documentation and reports.
• Act as a technical authority in customer discussions within your area of expertise.
• Maintain a strong hands‑on laboratory presence, assembling, testing, and troubleshooting hardware when required.

Candidate Requirements

• Applying a systems engineering approach across the full product lifecycle.
• Significant experience in power electronics design, including a range of topologies.
• Proven ability to take designs from prototype through to production.
• Experience designing custom or semi‑custom magnetic components.
• Strong understanding of embedded digital electronics, including microprocessors.
• Practical experience with schematic capture, PCB design, and verification.
• Ability to analyse problems using SPICE‑based and Simulink simulation tools, make sound engineering decisions, and communicate outcomes clearly.
• Confidence working independently, while also mentoring and supporting others.
• Comfortable operating in a changing environment with competing priorities.
• Eligible for, or able to obtain, SC security clearance.

Desirable Experience

• Experience with ADC/DAC, memory devices (SRAM, Flash), and mixed‑signal design.
• Compliance of products to defence engineering standards (DEF‑STAN, MIL‑STD, etc.).
• Design for, and compliance to, European Directives (Low Voltage Directive, Electromagnetic Compatibility Directive, etc.).
• Product design for Manufacture, Assembly and Test.
• Product design for environmental requirements (shock, vibration, EMC, etc.).
• Familiarity with Mentor Xpedition.
• Experience developing DO‑254 compliant electronic systems.
• Experience with FPGAs, SoCs, and high‑speed digital interfaces.

What We Offer

• Competitive salaries.
• 25 days holiday + statutory public holidays, plus opportunity to buy and sell up to 5 days (37 hr).
• Contributory Pension Scheme (up to 10.5 % company contribution).
• Company bonus scheme (discretionary).
• 6 times salary ‘Life Assurance’ with pension.
• Flexible Benefits scheme with extensive salary sacrifice schemes, including Health Cashplan, Dental, and Cycle to Work among others.
• Enhanced sick pay.
• Enhanced family‑friendly policies including maternity, paternity, and shared parental leave.

Work Culture

• 37‑hour working week, although hours may vary depending on role, job requirement or site‑specific arrangements.
• Remote, hybrid and site‑based working opportunities, dependent on your needs and the requirements of the role.
• Flexible working culture that focuses on output, not desk time.
• Up to 5 paid days volunteering each year.

Equal Employment Opportunity

Raytheon adheres to the principles of equal employment. All qualified applications will be given careful consideration without regard to ethnicity, colour, religion, gender, sexual orientation or identity, national origin, age, disability, protected veteran status or any other characteristic protected by law.