Sr Power Supply Engineer
Cisco · Taipei, Taiwan · 9mo ago
What You’ll Do (Roles & Responsibilities)
As AI growth is accelerating, Cisco is developing ground-breaking technologies and customer solutions to lead the industry. These technologies are constantly evolving across different commodities.
Your role is expected to excel at switching power supply design review. It is imperative that you possess a robust understanding and practical experience in the intricacies of power supply design and knowledge of how to quantify the design robustness and reliability. This specialized knowledge is crucial for the development and optimization of the highly efficient and reliable power delivery from facility power grid to networking equipment.
Your responsibilities encompass the end-to-end quality and reliability management of power supply units, advanced design and manufacturing technology evaluation, as well as supply chain resiliency management. You will be expected to demonstrate proficiency in the following areas:
Design Expertise: Ensure the designs meet technical requirements. Craft the design margin measures to quantify the design robustness at all applicable operating conditions and worst-case tolerance. This includes the specific circuitry tolerance analysis, the worst-case component stress measure against SOA (safe operating area), firmware control logic examination, transient operating status evaluation and redundant operating evaluation etc.
Sub-tier component knowledge: A deep understanding of key sub-tier components used in power supply design. Make sure the components from quality suppliers with mainstream technology are selected for power supply design. Solid understanding how the components’ characteristic would impact power supply circuitry performance and stability. Craft and process sub-tier components quality and reliability examination through data analysis and design of experiments.
Environmental and reliability qualification: Set reliability target. Identify the design weakness and reliability through TC, THB, PTC and vibration etc. Deeply understand the methodology of accelerated stress test to evaluate long term reliability. Able to specifically quantify the risk and look for the opportunities for improvement.
Manufacturing readiness: Understand the end-to-end manufacturing process for complex power supply units. Examine the assembly and test process capability and assess quality control plan with adequate coverage to ensure sustainable manufacturing readiness.
Standards Compliance: Ensuring that all designs adhere to industry standards (e.g., IPC, IEC, NEBS, Telcordia, IEEE, etc..) and standard processes, as well as any regulatory requirements that may apply to the specific application or market.
Collaboration and Communication: Working closely and building relationships with multi-functional teams, including engineers from other subject areas and suppliers, and supply chain customers. This also involves effectively communicating and presenting complex ideas, anticipate potential objections, and persuades others, often at senior levels, to adopt different points of view.
Problem-Solving: Lead and resolve design issues, quality reviews and root cause analysis throughout the product life cycle from early feasibility through end of life, ensuring continuous improvement and alignment to our commitment to excellence.
Program/Vendor Management: Bring together and lead multi-functional teams comprised of internal and external customers in development and life cycle management of power supply including key sub-tier components. Manage relationships with key vendors/partners and act as primary point of contract between Cisco engineering and suppliers.
Your role will be pivotal in bringing to market quality and reliable power supplies with high efficiency and density. Your ability to innovate and adapt to the evolving landscape of advanced technology will be an asset to Cisco as we continue to excel our competitive edge in the industry. We are committed to fostering a diverse and inclusive workplace and encourage candidates from all backgrounds to apply. Join us in shaping the future of technology.
Who You'll Work With
You'll be part of the Component Quality & Technology (CQT) Organization within the SCO organization. CQT is a key hub of technical innovation in Cisco.Members of the organization focus on evaluating and developing new technologies to enable sustained product differentiation. You will be a part of a diverse team that seamlessly blends different levels of expertise in several areas of semiconductor and systems design combining traditional knowledge with groundbreaking data analytics techniques to tackle increasingly sophisticated problems. You will regularly engage with Cisco Business Units as your partners and customers, Suppliers of the commodity space you are managing and extended Supply Chain functions including Global Supply Management, Product Operations and Global Manufacturing Organization.
Who You Are (Desired and soft skills)
We are seeking a highly motivated and engaged candidate with a strong background in switching power supply design. Interested in becoming an expert across multiple fields required to successfully bring a new design from a concept to production. The ideal candidate should be passionate about problem-solving, continuous improvement, and product quality. They will be collaborative, capable of delivering advanced power solutions for Cisco products, and able to quickly learn across multiple teams and adapt in a dynamic, fast-paced environment. A "can do" attitude to take on any challenge, independent thinking, and the ability to effectively communicate complex technical issues across all levels of leadership are essential.
Minimum requirements:
Education & Experience:
- BSME/BSEE or equivalent with 8+ years of design experience in power supply design for networking or computing equipment.
Technical Expertise:
- Expert knowledge in high efficiency and density power supply design and qualification (minimal 5 year’s experience on advanced power design: power > 3KW, Titanium efficiency and 45+ W/cubeinch)
- Proven experience on product reliability evaluation and qualification.
- Experience in leading failure analysis and quality improvement activities. As the program leader, successfully deliver at least 1 quality improvement program
Preferred requirements:
Technical Skills:
- Strong analog circuit design skills, including tolerance analysis, electrical and thermal stress analysis, loop stability analysis etc.
- Rich experience on characterizing power semi-conductors in power converting topology.
- Knowledge of thermal design principles and their effects on application and components.
- Knowledge of digital control architecture for power converter and validation approaches for firmware robustness.
- Good at technical review for DFM (Design for Manufacturing), and manufacturing readiness.
- Proficiency in PCB/PCBA fabrication and assembly techniques, as well as modularized PCBA attaching technologies.
- Proven experience on working with multi-functional teams to generate requirements documents and conduct root cause failure analysis.
Presentation & Communication:
- Experience presenting to large product teams, often at senior levels
Quality Management:
- Competency in SPC, Cpk, dFMEA & pFMEA, 8D/Corrective Action, Design of Experiments (DOE)
- Knowledge of methodology for Lean and continuous quality improvement.
Additional Experience:
Experience with power supply design with wide bandgap switch devices, GaN/SiC is a plus.
Why Cisco?
At Cisco, we’re revolutionizing how data and infrastructure connect and protect organizations in the AI era – and beyond. We’ve been innovating fearlessly for 40 years to create solutions that power how humans and technology work together across the physical and digital worlds. These solutions provide customers with unparalleled security, visibility, and insights across the entire digital footprint.
Fueled by the depth and breadth of our technology, we experiment and create meaningful solutions. Add to that our worldwide network of doers and experts, and you’ll see that the opportunities to grow and build are limitless. We work as a team, collaborating with empathy to make really big things happen on a global scale. Because our solutions are everywhere, our impact is everywhere.
We are Cisco, and our power starts with you.