Sr Design Engineer

Location: Naperville, IL - HYBRID

*Due to ITAR Requirements, candidates must be US CITIZENS** 

Position Summary

We are seeking an experienced Sr Design Engineer to support the development of advanced electronic systems for aerospace, defense, industrial, medical, and other high-reliability applications.

This role is ideal for a hands-on electrical engineer with deep expertise in analog circuit design and product development from concept through production. The successful candidate will lead the architecture, design, analysis, prototyping, testing, and validation of complex electronic hardware while collaborating with multidisciplinary engineering teams. While experience with RF technologies is highly desirable, the primary focus is on analog and mixed-signal circuit design.

This position also provides technical leadership through mentoring junior engineers, supporting customer interactions, and driving engineering excellence across multiple product development programs.

Key Responsibilities

• Lead the design and development of analog and mixed-signal electronic hardware for high-reliability products.

• Design and develop:

  • Analog signal conditioning circuits

  • Power supply and power management circuits

  • Precision analog interfaces

  • High-speed analog signal chains

  • Data converter interfaces

  • Mixed-signal embedded hardware

• Support RF-related designs including front ends, filters, LNAs, oscillators, PLLs, power amplifiers, and wireless interfaces when required.

• Develop schematics, perform circuit simulations, provide PCB layout guidance, and generate complete design documentation.

• Perform circuit analysis, including:

  • Analog performance optimization

  • Signal integrity

  • Power integrity

  • Noise analysis

  • EMI/EMC mitigation

  • Stability and impedance analysis

• Guide multilayer PCB design, component selection, and controlled impedance layout practices.

• Lead prototype bring-up, debugging, troubleshooting, verification, and validation activities.

• Collaborate closely with firmware, mechanical, manufacturing, and systems engineering teams throughout the product lifecycle.

• Support environmental qualification, regulatory compliance, and product reliability testing.

• Participate in customer design reviews, technical discussions, and engineering trade studies.

• Drive Design for Manufacturability (DFM), Design for Assembly (DFA), reliability improvements, and continuous engineering best practices.

• Mentor junior engineers and provide technical leadership across multiple development programs.

• Support product transition from prototype through manufacturing and production.

Required Qualifications

• Bachelor's degree in Electrical Engineering or related discipline.

• 8+ years of hands-on electrical hardware design experience, including recent ownership of product designs from concept through production.

• Strong expertise in:

  • Analog circuit design

  • Mixed-signal electronics

  • Power supply and power management design

  • High-speed digital and analog interfaces

  • PCB design and layout principles

• Experience designing, simulating, debugging, and validating electronic hardware.

• Proficiency with tools such as:

  • LTspice or PSpice

  • Altium Designer (or similar PCB CAD software)

  • Oscilloscopes

  • Logic analyzers

  • Signal generators

• Strong understanding of schematic capture, PCB layout, signal integrity, and EMI/EMC design principles.

• Experience working in cross-functional product development teams.

• Excellent troubleshooting, analytical, and problem-solving skills.

• Strong written and verbal communication skills.

Preferred Qualifications

• Experience with RF circuit design or wireless technologies, including Wi-Fi, Bluetooth, RF front ends, filters, amplifiers, or communications systems.

• Familiarity with RF simulation tools such as ADS, HFSS, or Microwave Office.

• Experience with aerospace, defense, medical device, or other high-reliability electronic products.

• Experience with FPGA interfaces, embedded hardware, or digital communications.

• Knowledge of environmental qualification and regulatory compliance testing.

• Previous experience mentoring engineers or leading technical projects.

• Customer-facing engineering or technical leadership experience.

Why Join Us?

This is an opportunity to join a highly collaborative engineering organization developing innovative, high-reliability electronic products across multiple industries. You'll work on technically challenging designs from concept through production while partnering with experienced engineers and directly influencing the development of next-generation technologies.