Senior Engineer II (Hardware Design)

Sanmina; Singapore; On-site; SGD 140,000 - 190,000; Full time

Job summary

Sanmina Corporation in Singapore seeks a Senior Engineer II (Hardware Design) to lead power electronics design for data centre servers and rack-level systems. You will define power architectures (AC/DC and DC/DC), perform power budgeting, simulate and validate designs, and collaborate with firmware, mechanical, and thermal teams to meet safety and Open Compute Project standards.

The role requires 5+ years in power electronics, hands-on PCB work, and experience with Cadence Allegro or Altium.

Qualifications

• Degree/Master in Electrical/Electronic Engineering or equivalent.
• Minimum 5 years hands-on experience in power electronics design and hardware systems.
• Deep understanding of power design topologies (buck, boost) and WBG semiconductors such as GaN/SiC.
• Experience integrating software and hardware for hardware systems.
• Familiar with Product Development Life Cycle and NPI processes.
• Experience using CAD tools such as Cadence Allegro, Siemens PADS or Altium Designer.
• Strong analytical and communication skills; ISO9001 awareness.

Responsibilities

• Define power supply architectures (AC/DC and DC/DC) for data centre servers and rack systems.
• Design system power trees and perform power budgeting with thermal collaboration.
• Select power supplies for high DC input voltage and high current low voltages for digital circuitry.
• Analyze efficiency, thermal dissipation and loss budgeting for switching devices and components.
• Perform schematic capture and guide PCB layouts to minimize EMI/EMC and ensure signal integrity.
• Conduct simulations for power conversion, thermal management, and magnetic design.
• Lead board bring-up, characterize designs, and validate power consumption against budget.
• Collaborate with firmware, mechanical and thermal teams to meet constraints.
• Ensure designs meet safety and regulatory standards and align with OCP standards.
• Work with cross-functional and manufacturing teams to resolve design issues and support production.

Skills

Power electronics

Hardware design

Power integrity

PCB design

Regulatory compliance

Education

Degree/Master in Electrical/Electronic Engineering or equivalent

Tools

Cadence Allegro

Siemens PADS

Altium Designer

Job description

De ion

Sanmina Corporation (Nasdaq: SANM) is a global powerhouse in integrated manufacturing solutions serving the fastest growing segments of the global Electronics Manufacturing Services (EMS) market. We are a global engine providing the end-to-end manufacturing backbone for the world's most essential and innovative brands. Whether it's autonomous vehicles, life-saving medical tech, next-gen aerospace, or AI/cloud infrastructure - our integrated solutions don't just meet standards- they redefine them.

Senior Engineer II (Hardware Design) 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
• Maintain effective working relationships with managers, co-workers
• Excellent organization skills and ability to juggle multiple projects
• Excellent oral and written communication skills