Principal Researcher

Flex; Singapore; On-site; SGD 130,000 - 190,000; Full time

Benefits offered by this job

Medical benefits

Life Insurance

Paid Time Off

Job summary

Flex is a diversified manufacturing partner focused on designing, building and delivering innovative products. We seek a Principal Power Technology Researcher in Singapore to advance high‑power technologies for future data centers and mission‑critical applications.

You will lead fundamental research, prototype power system concepts, and collaborate with Advanced Technology teams, shaping technologies four to six years from now. This role anchors Flex's R&D efforts in Singapore.

Qualifications

• Master's or PhD in Electrical Engineering with focus on power systems.
• 5 years of experience for Master's or 3 years for PhD in power research or design.

Responsibilities

• Perform fundamental research into future high‑power technologies.
• Prototype power system concepts and perform design simulations.
• Contribute to patent applications and whitepapers.
• Collaborate with Advanced Technology teams across groups.
• Support handoff between Singapore Research Centre and Flex teams.

Skills

Power electronics

Power system research

Solid State Transformer

High power-density design

Team collaboration

Education

Master's degree in Electrical Engineering

PhD in Electrical Engineering (plus)

Tools

MatchCAD

SIMetrix

PLECS

PADs

Job description

Flex is the diversified manufacturing partner of choice that helps market-leading brands design, build and deliver innovative products that improve the world.

A career at Flex offers the opportunity to make a difference and invest in your growth in a respectful, inclusive, and collaborative environment. If you are excited about a role but don't meet every bullet point, we encourage you to apply and join us to create the extraordinary.

Job Summary

Flex intends to spin off its Cloud and Power Infrastructure segment into a new, independent publicly traded company, Axiom, with the spin planned for Q1 2027. If the intended spin occurs, this role will support Axiom, a company focused on critical digital infrastructure and delivering end-to-end power and thermal management solutions for AI data centers and other mission-critical applications.

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To support our extraordinary teams who build great products and contribute to our growth, we’re looking to add aPrincipal Power Technology Researcherlocated inKallang, Singapore.

The Principal Power Technology Researcher will be accountable for the fundamental research into technologies that will form the basis for future high‑power products that the company will introduce four to six years from now. The job encompasses research and prototyping of leading‑edge power system technologies, proof of concept designs, design simulations, patent applications, whitepapers, scholarly articles and technology presentation materials. This job requires deep working knowledge and engagement with multiple groups on the latest available technologies, research of new inventions, and collaboration with the company's Advanced Technology teams.

What a typical day looks like:

• Working under the direction of site manager or technical leader to identify new technologies which can be perfected for introduction to Flex Advanced Technology teams for conversion to working platforms within the defined requirements.

• Technologies of interest include Medium Voltage AC to High Voltage DC solid state transformer systems, isolated DC‑DC converter topologies with high conversion ratios of between 50:1 and 100:1, advanced power system three‑phase AC input with high efficiency, high power density, harmonic control, and good EMC performance, and other solutions to fundamental problems that exist in modern datacenters.

• Work across functional teams to assess whether proposed technology can meet product specification, cost target, schedule, etc.

• Provide technology leadership and advise on how to solve technical problems encountered the research and prototyping phases

• Design support and issue resolution during the handoff period between the Singapore Research Centre and Flex Advanced Technology Teams.

Experience we’re looking to add to our team:

• Master degree in Electrical Engineering or power electronics. PdD degree is a plus

• 5 years’ experience for Master degree or 3 years’ experience for PhD degree in power system research or design (such as Solid State Transformer, medium‑voltage rectifiers, DC‑DC power modules, and high efficiency, high power‑density (>15 kW) AC/DC power systems such as AIDC systems and high power EV supercharger etc.) and independent project design leadership experience. Solid State Transformer development experience is a plus.

• Strong Power electronics power supply design knowledge, and deep understanding about popular topologies such as Totem‑pole PFC, Vienna PFC, T‑NPC, ANPC, flyback, LLC, CLLC, DAB, etc.

• Familiar with engineering tools such as MatchCAD, SIMetrix, PLECS, PADs (or equivalent)

• Self‑motivated, passionate work, excellent teamwork

What you’ll receive for the great work you provide:

• Medical benefits, dental, vision

• Life Insurance

• Paid Time Off

Job Category
Design, Process & Technology Engineering

Required Skills:

Optional Skills:

Flex is an Equal Opportunity Employer and employment selection decisions are based on merit, qualifications, and abilities. We do not discriminate based on: age, race, religion, color, sex, national origin, marital status, sexual orientation, gender identity, veteran status, disability, pregnancy status, or any other status protected by law. We're happy to provide reasonable accommodations to those with a disability for assistance in the application process. Please email @flex.com and we'll discuss your specific situation and next steps (NOTE: this email does not accept or consider resumes or applications. This is only for disability assistance. To be considered for a position at Flex, you must complete the application process first).