Piper Companies is seeking a Signal Integrity Engineer to join an industry-leading manufacturer of high-speed connectivity and interconnect solutions for a full-time permanent opportunity located in Nashua, NH. The Signal Integrity Engineer will support the development, testing, and optimization of next-generation high-speed products used across datacenter, networking, telecommunications, and enterprise hardware environments while partnering closely with engineering, manufacturing, and customer-facing teams. Responsibilities for the Signal Integrity Engineer include: · Perform signal integrity analysis, validation, and troubleshooting for high-speed connectors, PCB channels, backplanes, and cable assemblies. · Conduct laboratory characterization using equipment such as TDRs, VNAs, oscilloscopes, pattern generators, and error detection systems. · Develop and evaluate simulation models to assess channel performance, electromagnetic behavior, and overall system reliability. · Provide recommendations for PCB stack-up design, routing strategies, and channel optimization to improve high-speed signal performance. · Collaborate with customers, sales teams, and internal engineering groups to address technical challenges and support product implementation. Qualifications for the Signal Integrity Engineer include: · Bachelor’s degree in Electrical Engineering, Physics, or a related technical discipline. · Minimum of 2 years of signal integrity experience supporting high-speed digital systems and interconnect technologies. · Hands-on experience with measurement and characterization tools including TDR, VNA, oscilloscopes, pattern generators, and BER/BERT test equipment. · Knowledge of electromagnetic theory, transmission line concepts, and high-speed digital design principles. · Experience with simulation and modeling tools such as HFSS, CST, ADS, HSPICE, MATLAB, or comparable engineering platforms preferred. · Ability to work onsite Monday through Friday in Nashua, NH; relocation assistance and sponsorship considerations available for qualified candidates. · Willingness to travel up to 10% as needed to support manufacturing and engineering operations. Compensation for the Signal Integrity Engineer: Salary Range: $120,000-$180,000/year (USD) Comprehensive Benefits: Medical, Dental, Vision, 401(k), paid time off, and additional company-sponsored benefits. This job opens for applications on 10/16/2026. Applications for this job will be accepted for at least 30 days from the posting date. Keywords: signal integrity, SI engineering, high-speed digital design, SerDes, PCB design, PCB routing, backplane design, connector design, cable assemblies, channel characterization, TDR, VNA, BERT, oscilloscopes, HFSS, CST, ADS, HSPICE, MATLAB, electromagnetic analysis, transmission lines, datacenter hardware, telecom, networking, signal analysis, debugging, validation testing, high-speed interconnects, electrical engineering, channel optimization, hardware development. #LI-MB1 #LI-ONSITE