Piper Companies is seeking a Signal Integrity Engineer to join a leading organization in the connectivity and high-speed hardware industry onsite in Nashua, NH. The ideal Signal Integrity Engineer will support the design, analysis, and validation of high-speed interconnect solutions used in data centers, networking, and telecommunications environments. This role is ideal for an engineer with hands-on signal integrity experience, strong testing and simulation skills, and a background in high-speed digital systems. Responsibilities of the Signal Integrity Engineer: • Perform signal integrity analysis and testing for high-speed connectors, backplanes, cables, and interconnect products. • Conduct lab measurements using tools such as TDRs, VNAs, oscilloscopes, and BERTs. • Analyze and troubleshoot signal quality issues in high-speed communication channels. • Support channel characterization, validation, and optimization efforts. • Provide PCB routing and layout recommendations to improve signal performance. • Develop and evaluate simulation models using industry-standard SI tools. • Partner with engineering and customer teams to resolve technical challenges. • Support customer-facing technical discussions and application engineering activities. • Travel up to 10% as needed for customer and product support. Qualifications of the Signal Integrity Engineer: • 2+ years experience working in Signal Integrity engineering. • Knowledge of high-speed digital design, transmission lines, and electromagnetic theory. • Hands-on experience with TDR, VNA, oscilloscopes, BERTs, and related test equipment. • Experience supporting high-speed connectors, backplanes, cable assemblies, or similar hardware. • Familiarity with channel characterization, SerDes technologies, and PCB design principles. • Experience with simulation tools such as HFSS, CST, ADS, HSPICE, or MATLAB. • Strong troubleshooting and analytical skills. • Experience in networking, telecom, datacenter, or interconnect product environments is a plus. • Bachelor's degree in Electrical Engineering, Physics, or a related field. Master's degree or PhD preferred. Compensation for the Signal Integrity Engineer includes: • Salary range: $100,000 - $170,000 base salary depending on experience • Comprehensive Benefits: Medical, Dental, Vision, 401K, PTO, Sick Leave if required by law, and Holidays This job opens for applications on 10/23/2026. Applications for this job will be accepted for at least 30 days from the posting date. Keywords: Signal Integrity Engineer, SI Engineer, High-Speed Digital Design, Signal Integrity, SerDes, Channel Characterization, High-Speed Connectors, Backplanes, Cable Assemblies, Interconnects, Datacenter Hardware, Networking Hardware, Telecom Hardware, PCB Layout, PCB Routing, Transmission Lines, Electromagnetic Theory, SI Testing, SI Validation, Signal Analysis, TDR, Time Domain Reflectometry, VNA, Vector Network Analyzer, Oscilloscope, BERT, Channel Optimization, S-Parameters, Eye Diagrams, HFSS, CST, ADS, HSPICE, MATLAB, Hardware Validation, Applications Engineer, Customer-Facing Engineer, High-Speed Communications, Ethernet, PCIe, Networking, Telecommunications, Electrical Engineer, Product Development #LI-BR1 #LI-ONSITE #PANDO