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Senior Hardware Design Engineer, High Speed Networking

Arista Networks · Nashua, NH, United States · Posted May 14, 2026

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Who You’ll Work With

Working closely with cross-functional teams including software, product management, marketing, and manufacturing, our engineers innovate new system architectures and develop high-speed PCBs requiring state-of the-art signal integrity and power integrity design practices.

What You'll Do

Our Hardware Design Engineering team is at the forefront of developing high-speed networking and Ethernet products used in Enterprise campuses, hyperscale datacenters and bleeding edge AI clusters. The team is responsible for the end-to-end design and development of advanced hardware solutions that meet the demands of modern networking environments.

Candidates for this position would be responsible for the entire hardware design process:

Authoring functional specifications of high power and high density Ethernet switches used in AI networks

Selecting and qualifying components

Schematic capture and tool-based design verification

Working closely with eCAD teams on PCB layout and component footprints

Working with internal teams to run (or run your own) signal integrity simulations on both power and datapath signals

Working closely with mechanical and thermal engineers on the system general arrangement and physical realization

Specifying PCB stackup and fabrication details with various PCB vendors

Working with internal teams to develop (or develop your own) programmable logic devices for control and timing planes

Working closely with local and overseas Contract Manufacturers (CM), from proto through production

Lab bring up and debug of prototypes

Working closely with diagnostics software engineers on both design validation and manufacturing test development

Driving complex system debug between software, hardware, and test teams

Training CM for high yield test and manufacturing

Guiding groups of engineers and mentoring younger engineers

BSEE or MSEE

10+ years of relevant experience in hardware engineering

Experience designing networking hardware, particularly involving 100G and 200G PAM4 Ethernet switching

Embedded x86/ARM system design is highly desirable

Experience designing 20+ layer count boards featuring 50G+ signals, and advanced PCB manufacturing technologies such as sequential lamination, HDI, and ultra-low-loss materials

Experience working with multi-phase DC/DC’s for high current, high transient loads

Experience working with high speed interfaces, such as DDR, PCIe

Writing specifications and drawing schematics for high complexity boards

Working closely with CAD designers on complicated layout and routing

Working closely with Software and test engineers to bring-up and debug systems

Familiarity with signal integrity and power integrity concepts and tools, such as: impedance, PDN’s, differential routing, insertion loss, S-parameters, TDR’s, VNA’s

Experience with mass production Design for Manufacturability (DFM)

FPGA design and system simulation using Verilog and or VHDL

Working with Contract manufacturers

Successfully taking products from concept to production

#LI-FI1

Arista Networks is an equal opportunity employer. Arista makes all hiring and employment-related decisions in a non-discriminatory manner without regard to race, color, religion, sex, sexual orientation, gender identity, national origin or any other factor determined to be unlawful under applicable federal, state, or law law. All your information will be kept confidential according to EEO guidelines.

Arista Networks is an industry leader in data-driven, client-to-cloud networking for large data center, campus and routing environments. What sets us apart is our relentless pursuit of innovation. We leverage the latest advancements in cloud computing, artificial intelligence, and software-defined networking to provide our clients with a competitive edge in an increasingly interconnected world. Our solutions are designed to not only meet the current demands of the digital landscape but to also anticipate and adapt to future challenges.

At Arista we value the diversity of thought and perspectives that each employee brings to the table. We believe that fostering an inclusive environment, where individuals from various backgrounds and experiences feel welcome, is essential for driving creativity and innovation.

Our commitment to excellence has earned us several prestigious awards, such as Best Engineering Team, Best Company for Diversity, Compensation, and Work-Life Balance. At Arista, we take pride in our track record of success and strive to maintain the highest standards of quality and performance in everything we do.

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