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 Work Bench, 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 Dx Designer 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 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.

Message to applicants applying to work in the U.S. and/or Canada:

The starting salary range posted for this position is $168,800.00 to $241,200.00 and reflects the projected salary range for new hires in this position in U.S. and/or Canada locations, not including incentive compensation, equity, or benefits.

Individual pay is determined by the candidate's hiring location, market conditions, job-related skillset, experience, qualifications, education, certifications, and/or training. The full salary range for certain locations is listed below. For locations not listed below, the recruiter can share more details about compensation for the role in your location during the hiring process.

U.S. employees are offered benefits, subject to Cisco’s plan eligibility rules, which include medical, dental and vision insurance, a 401(k) plan with a Cisco matching contribution, paid parental leave, short and long-term disability coverage, and basic life insurance. Please see the Cisco careers site to discover more benefits and perks. Employees may be eligible to receive grants of Cisco restricted stock units, which vest following continued employment with Cisco for defined periods of time.

U.S. employees are eligible for paid time away as described below, subject to Cisco’s policies:

• 10 paid holidays per full calendar year, plus 1 floating holiday for non-exempt employees

• 1 paid day off for employee’s birthday, paid year-end holiday shutdown, and 4 paid days off for personal wellness determined by Cisco

• Non-exempt employees receive 16 days of paid vacation time per full calendar year, accrued at rate of 4.92 hours per pay period for full-time employees

• Exempt employees participate in Cisco’s flexible vacation time off program, which has no defined limit on how much vacation time eligible employees may use (subject to availability and some business limitations)

• 80 hours of sick time off provided on hire date and each January 1st thereafter, and up to 80 hours of unused sick time carried forward from one calendar year to the next

• Additional paid time away may be requested to deal with critical or emergency issues for family members

• Optional 10 paid days per full calendar year to volunteer

For non-sales roles, employees are also eligible to earn annual bonuses subject to Cisco’s policies.

Employees on sales plans earn performance-based incentive pay on top of their base salary, which is split between quota and non-quota components, subject to the applicable Cisco plan. For quota-based incentive pay, Cisco typically pays as follows:

• .75% of incentive target for each 1% of revenue attainment up to 50% of quota;

• 1.5% of incentive target for each 1% of attainment between 50% and 75%;

• 1% of incentive target for each 1% of attainment between 75% and 100%; and

• Once performance exceeds 100% attainment, incentive rates are at or above 1% for each 1% of attainment with no cap on incentive compensation.

For non-quota-based sales performance elements such as strategic sales objectives, Cisco may pay 0% up to 125% of target. Cisco sales plans do not have a minimum threshold of performance for sales incentive compensation to be paid.

The applicable full salary ranges for this position, by specific state, are listed below:

New York City Metro Area:

$168,800.00 - $277,400.00

Non-Metro New York state & Washington state:

$148,800.00 - $248,200.00

• For quota-based sales roles on Cisco’s sales plan, the ranges provided in this posting include base pay and sales target incentive compensation combined.

Employees in Illinois, whether exempt or non-exempt, will participate in a unique time off program to meet local requirements.