Power Design Hardware Engineer - Acacia (Hybrid)

The application window is expected to close on: 02/12/2026 Job posting may be removed earlier if the position is filled or if a sufficient number of applications are received. The application window is expected to close on: 3/31/26. Job posting may be removed earlier if the position is filled or if a sufficient number of applications are received. This is a hybrid role with three day per week at our Maynard, MA or San Jose, CA office. Meet the Team You will work with a versatile and upbeat team of enthusiastic engineers in an environment where team members experience mutual enhancement and improvement. You will have the opportunity to collaborate cross-functionally with our Hardware, Mechanical Engineering, Optics, and manufacturing Process Engineering teams. Your Impact You will be key member of Acacia’s Hardware Team. The Power Design Engineer will lead the design of DC-DC switch-mode power supplies and component selection. The successful candidate will work across disciplines to assure power supply designs meet the power, thermal, and safety requirements of the system specification. You will work closely with Acacia’s multi-disciplinary engineering and manufacturing teams to understand the system requirements and contribute or lead the specification, design, and debug of complex power delivery systems for our products. * Architecture: Lead and contribute to power delivery system architecture and specifications. * Design: Design, analysis, and simulation of high current and low noise power delivery circuits. Debug: Contribute to system bring up, debug, and validation in the lab. * Verification: Write and execute test and DVT plans. Minimum Qualifications: * Bachelors + 8 years of related experience, or Masters +6 years of related experience, a PhD + 1 year of experience. 5 + years of direct Power supply design experience * Experience with high efficiency DC-DC power conversion design, analysis, circuit simulation, control loops, and stabilization. * Experience with phase and gain margins * Experience with power design component selection and trade-offs * Experience with Spice, LTspice, TI WorkBench, and circuit simulators * Experience in both high current low voltage multi-phase ()100W) as well as ultra-low noise power delivery circuitry * Experience with power supply layout and thermal design rules * Experience with Technical leadership of PCB layout with respect to various grounding and low noise etch techniques * Experience with power-up sequencing in multi-power supply systems * Experience in quickly grasping the existing designs and able to work independently with minimal supervision * Experience presenting technical information to technical and non-technical audiences. Preferred Qualification: * Experience with power supply layout and thermal design rules * Experience with Technical leadership of PCB layout with respect to various grounding and low noise etch techniques * Experience with power-up sequencing in multi-power supply systems * Expertise with AC and DC Power Integrity Simulation tools * Experience in power supply design for leading edge high speed communication devices * Experience in power supply design for sensitive optical components * Experience with power efficiency optimization schemes * Experience with Cadence Allegro and DxDesigner tools 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 wit ... (truncated, view full listing at source)