Senior Hardware Engineer (Power Electronics)

SANMINA-SCI SYSTEMS SINGAPORE PTE. LTD.; Singapore; On-site; SGD 90,000 - 150,000; Full time

Job summary

Sanmina-SCI Systems Singapore Pte. Ltd. is seeking a senior power electronics engineer to define and implement power architectures for data centre servers and rack-level systems. You will optimize efficiency and density, design power trees, and coordinate with thermal and firmware teams to ensure robust, compliant solutions.

You will conduct simulations, validate budgets, lead board bring-up, and ensure designs meet regulatory standards while supporting production and cross-functional teams.

Qualifications

• Degree/Master in Electrical/Electronic Engineering or equivalent.
• Minimum 5 years hands-on experience in power electronics design for data centres or communication infrastructure.
• Deep understanding of power design topologies (buck, boost) and wide-bandgap semiconductors (GaN, SiC).
• Understanding integration of software and hardware required.
• NPI project execution experience and familiarity with Product Development Life Cycle.
• Experience using CAD tools (Cadence Allegro, Siemens PADS or Altium Designer).
• Experience with power integrity (PI) simulation tools is advantageous.
• Familiarity with ISO9001.

Responsibilities

• Define power supply architectures (AC/DC and DC/DC) for data centre servers and rack-level systems, optimizing for efficiency and power density.
• Design system power trees and perform power budgeting calculations; determine thermal power budget with thermal engineers.
• Design and select power supply solutions for 12-400V input to high current low voltages.
• Analyze efficiency, calculate thermal dissipation and losses for switching devices, magnetic and passive components.
• Lead schematic capture and guide PCB layouts to minimize EMI/EMC and ensure signal/power integrity.
• Conduct simulations for power conversion efficiency, thermal management and magnetic design.
• Perform board bring-up, validate power consumption against budgets and conduct lab testing.
• Collaborate with firmware, mechanical and thermal teams to meet constraints.
• Ensure designs meet safety/regulatory requirements and align with OCP standards.
• Work with cross-functional and manufacturing teams to resolve design issues and support production.
• Provide technical expertise to peers and maintain high-quality engineering output.

Skills

Power electronics design

CAD tools

Power integrity simulation

Wide-bandgap devices

NPI lifecycle

ISO 9001

Education

Degree/Master in Electrical/Electronic Engineering

Tools

Cadence Allegro

Siemens PADS

Altium Designer

Job description

Job Responsibilities

• Define power supply architectures (AC/DC and DC/DC) for data centre servers and rack-level systems, optimizing for maximum efficiency and power density
• Design system power trees, and perform power budgeting calculations. Determine thermal power budget and work with thermal engineers to provide thermal solutions
• Design and select power supply solutions for high DC input voltage from 12-400V to the desired high current low voltages for digital circuitries
• Analyze power supply conversion efficiency, calculate thermal dissipation, and perform loss budgeting for switching devices, magnetic, and passive components
• Perform schematic capture and guide PCB layouts to minimize EMI/EMC and ensure signal/power integrity
• Conduct rigorous simulations for power conversion efficiency, thermal management, and magnetic design
• Perform board bring‑up, characterize designs and validate power consumption against calculated budget, and execute lab testing
• Work with firmware, mechanical and thermal design teams to ensure power supply solutions meet physical and cooling constraints
• Ensure designs meet international safety and regulatory requirements and align with Open Compute Project (OCP) standards
• Work with cross functional and manufacturing team to resolve design issues and to support production problems
• Provide technical expertise and consultation to peers
• Maintain consistent high quality of engineering design work to develop robust, high performance and cost effective designs and products
• Meet project schedules and budgets
• Perform additional duties as assigned

Job Requirements

• Degree/Master in Electrical/Electronic Engineering or equivalent
• Minimum 5 years hands‑on experience in power electronics design and hardware systems, specifically for communication infrastructure or data centres
• Deep understanding of power design topologies (e.g. buck, boost) and hands‑on experience with Wide‑bandgap (WBG) semiconductors like GaN and SiC
• Understanding integration of software and hardware required
• NPI project execution experience and familiarity with Product Development Life Cycle will be desirable
• Experience using CAD tools (e.g. Cadence Allegro, Siemens PADS or Altium Designer)
• Experience with power integrity (PI) simulation tools is highly advantageous
• Familiar with ISO9001

• Strong analytical skills for root cause analysis and resolving complex system‑level issues
• Self motivated and willing to learn new technology and skills who works well under pressure
• Self motivated and willing to learn new technology and skills who works well under pressure
• Maintain effective working relationships with managers, co‑workers
• Excellent organization skills and ability to juggle multiple projects
• Excellent oral and written communication skills