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Cisco DSP Engineer - Technical Leader in Maynard, Massachusetts

Acacia, now part of Cisco, provides innovative silicon-based high speed optical interconnect products to accelerate network scalability through advancements in performance, capacity, and cost. Our DSP ASICs, silicon photonic PICs and coherent modules empower cloud and service providers to meet the fast-growing demand for data. We have assembled a team of cross-functional experts capable of solving the challenges of next generation optical interconnects, resulting in industry-leading, award-winning products.

We are looking for experienced enthusiastic people with high energy and a team attitude who want to work at the forefront of fiber optic transmission subsystems.

Job Description

Acacia is looking for an expert in modeling of coherent optical communications systems. You will become the owner of Acacia’s system modeling environment helping us achieve fast, user-friendly, automated, and not least ultra-accurate system modeling. A key part of the work is development of accurate models adequate for system modeling for components such as RF amplifiers, silicon optics modulators and detectors, ADC/DAC, and lasers working closely with the colleagues designing these parts.

In addition, you will simulate system performance, where penalties from neighboring channels, filters, and other transmission effects are considered.

Depending on your experience and interest, you may also contribute to DSP/FEC algorithm development as well as bring-up, debugging, and optimization of ultra high speed optical transceivers.

Skills and experience

The essential requirements for this job include a good overall understanding of optical communications systems, a deep understanding of modeling of communications systems including time and frequency domain representation of signals, discrete-time representation of periodic and aperiodic analogue signals, and excellent C++ programming skills. Given the importance of accurate system modeling, we also believe that perfectionism and great attention to detail are essential.

Knowledge of DSP algorithms, SW development methodologies including revision control, and direct experience with coherent transceivers will be a plus and help you ramp up faster in this role.

While we do not have rigid requirements to education, we think a Ph.D. or master’s degree in physics, math, or electrical engineering is a good background for this job.

Acacia work philosophy

Acacia believes in a friendly, collaborative work style where we work together to create and implement great ideas, peer-review designs to eliminate mistakes, and balance workload.

The ideal work location is Maynard, MA or Holmdel, NJ, but fully remote is an option.

Minimum Qualifications:

  • Excellent C++ and Linux skills

  • Deep understanding of modeling of communications systems

  • Digital communications and digital signal processing knowledge

  • Experience with optical communications systems

  • Attention to detail

Highly Desired Skills:

  • Motivated self-starter willing to explore and find solutions

  • Experience with optical coherent transceivers

  • Fluency with scripting in Python, Matlab

  • Experience with version control systems (we use SVN and Perforce)

#WeAreCisco, where each person is unique, but we bring our talents to work as a team and make a difference powering an inclusive future for all.

We embrace digital, and help our customers implement change in their digital businesses. Some may think we’re "old" (36 years strong) and only about hardware, but we’re also a software company. And a security company. We even invented an intuitive network that adapts, predicts, learns and protects. No other company can do what we do - you can’t put us in a box!

But "Digital Transformation" is an empty buzz phrase without a culture that allows for innovation, creativity, and yes, even failure (if you learn from it.)

Day to day, we focus on the give and take. We give our best, give our egos a break, and give of ourselves (because giving back is built into our DNA.) We take accountability, bold steps, and take difference to heart. Because without diversity of thought and a dedication to equality for all, there is no moving forward.

So, you have colorful hair? Don’t care. Tattoos? Show off your ink. Like polka dots? That’s cool. Pop culture geek? Many of us are. Passion for technology and world changing? Be you, with us!

Cisco is an Affirmative Action and Equal Opportunity Employer and all qualified applicants will receive consideration for employment without regard to race, color, religion, gender, sexual orientation, national origin, genetic information, age, disability, veteran status, or any other legally protected basis.

Cisco will consider for employment, on a case by case basis, qualified applicants with arrest and conviction records.