Sr. Signal Integrity Engineer – SI Test Boards & Customer Support

Location: Nashua, New Hampshire Department: Engineering Posted: 3/31/2026 Location Name: Nashua

Wage: Depends on Experience

Amphenol Communications Solutions (ACS), a division of Amphenol Corporation, is a world leader in interconnect solutions for Communications, Mobile, RF, Optics, and Commercial electronics markets. Amphenol Corporation is one of the world’s largest designers and manufacturers of electrical, electronic and fiber optic connectors and interconnect systems, antennas, sensors and sensor-based products and coaxial and high-speed specialty cable. ACS has an expansive global presence in research and development, manufacturing, and sales. We design and manufacture a wide range of innovative connectors as well as cable assemblies for diverse applications including server, storage, data center, mobile, RF, networking, industrial, business equipment, and automotive.

Senior Signal Integrity Engineer – SI Test Boards & Customer Support

Location: Nashua, NH

Position Summary

The Senior Signal Integrity Engineer will be responsible for owning, developing, and supporting signal integrity (SI) test boards and customer-facing SI activities for high-speed interconnect and cable products. This role serves as a key technical interface between customers, internal SI teams, PCB vendors, and product engineering, ensuring SI solutions meet both performance and schedule requirements.

Key Responsibilities

SI Test Board Ownership & Lifecycle Management

• Own assigned SI test boards and PCB assets, including revision control, availability, and usage guidance.
• Maintain and update SI board inventory tracking and documentation.
• Coordinate PCB reorders, Gerber updates, and PO support with internal teams and external vendors.
• Support urgent build prioritization and resolve schedule or supply constraints.
  
  

Customer-Facing SI Support

• Act as a primary SI technical contact for strategic customers.
• Support customer requests related to padstack optimization, footprint review, and stackup alignment.
• Participate in customer meetings to present SI progress and explain technical tradeoffs.
  
  

SI Analysis, Measurement & Reporting

• Perform and support SI measurements, including VNA, TDR, and S-parameters.
• Generate customer-ready technical reports and presentations.
• Review customer PCB layouts and CAD files for SI compliance.
  
  

Cross-Functional Collaboration

• Work with global SI, layout, product, and manufacturing teams.
• Interface with PCB fabrication vendors to resolve technical issues.
  
  

Required Qualifications

• Ph.D. or M.S. in Electrical Engineering or related field (or equivalent experience).
• Strong background in high-speed signal integrity for connectors, cables, and PCBs.
• Hands-on experience with SI measurements (VNA, TDR, S-parameters).
• Experience reviewing PCB layouts, padstacks, vias, and stackups.
• Strong customer-facing communication skills.
  
  

Preferred Qualifications

• Experience supporting SI test boards for hyperscale or networking customers.
• Familiarity with Allegro or similar PCB design tools.
• Experience working across global engineering and manufacturing teams.
  
  

Amphenol Corporation is proud of our reputation as an excellent employer. Our focus is to provide the highest level of support and responsiveness to both our employees and our customers, the world's largest technology companies. Amphenol Corporation offers the opportunity for career growth within a global organization. We believe that Amphenol Corporation is unique in that every employee, regardless of his or her position, has the ability to positively impact the business.

Amphenol is an “Equal Opportunity Employer” - Minority/Female/Disabled/Veteran/Sexual Orientation/Gender Identity/National Origin. For additional company information please visit our website at https://www.amphenol-cs.com/