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September 16, 2026
Senior Hardware Design Engineer, High-Speed Networking
Senior
135,000 - 135,000 USD/yr
Nashua, NH
Apply now
Quick Facts
Role: Senior Hardware Design Engineer (High-Speed Networking)
Focus: End-to-end hardware design for high-power, high-density Ethernet switching for AI networking
Description
You will lead the full hardware design lifecycle for advanced high-speed networking systems, including functional specifications, component selection, schematic/design verification, PCB/stackup specification, signal and power integrity validation, prototyping, and production support. You’ll collaborate with software, eCAD, mechanical/thermal, diagnostics/test engineering, and contract manufacturers to drive system debug and manufacturing test readiness.
Responsibilities
Author functional specifications for high-power, high-density Ethernet switches
Select and qualify components
Perform schematic capture and tool-based design verification
Coordinate with eCAD teams on PCB layout and component footprints
Run signal integrity simulations for power and datapath signals
Work with mechanical and thermal teams on physical realization
Specify PCB stackup and fabrication details with PCB vendors
Develop programmable logic for control and timing planes
Support contract manufacturers from prototype through production
Bring up and debug prototypes in the lab
Collaborate with diagnostics software engineers on design validation and manufacturing test development
Drive complex system debug across software, hardware, and test teams
Train contract manufacturers for high-yield test and manufacturing
Mentor engineers
Requirements
BSEE or MSEE
10+ years of relevant hardware engineering experience
Networking hardware experience, especially 100G and 200G PAM4 Ethernet switching
Experience designing 20+ layer boards with 50G+ signals and advanced PCB manufacturing (sequential lamination, HDI, ultra-low-loss materials)
Experience with multi-phase DC/DC converters for high-current, high-transient loads
Experience with high-speed interfaces such as DDR and PCIe
Ability to write specifications and create schematics for complex boards
Experience working with CAD designers on complex layout and routing
Experience bringing up and debugging systems with software and test engineers
Familiarity with signal integrity and power integrity (impedance, PDNs, differential routing, insertion loss, S-parameters, TDRs, VNAs)
Experience with mass-production DFM
FPGA design and system simulation using Verilog or VHDL
Experience working with contract manufacturers
Demonstrated ability to take products from concept to production
Benefits
Equal opportunity employer
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