Electrical Digital Design Engineer 4

Legion Technical Solutions LLC; Tucson (AZ); On-site; USD 130,000 - 210,000; Full time

Benefits offered by this job

Competitive salary

Health insurance

Paid time off

Relocation bonus

Job summary

Legion Technical Solutions LLC is seeking a Principal Digital Design Engineer to advance digital electronics for defense and aerospace applications in Tucson, AZ. The role involves owning hardware designs from concept to production, solving complex technical challenges, and collaborating across multidisciplinary teams.

Responsibilities include designing digital circuits and CCAs, performing analyses, and coordinating with PCB layout, firmware, and software teams to ensure robust,

Qualifications

• Minimum 8 years of professional experience developing and designing electronic circuits and multi-assembly electronic systems.
• Ability to take a digital hardware design from requirements through production.
• Experience with PCB design processes including schematic capture and design verification.
• Experience designing multilayer circuit card assemblies with processors, FPGAs, memory, and interfaces.
• Familiarity with FPGA or embedded software development and supporting hardware programs through development to production.
• Hands-on with laboratory test equipment, hardware checkout, and troubleshooting.
• Strong analytical, problem-solving, and cross-functional collaboration skills.

Responsibilities

• Lead the design and development of complex digital electronic circuits, modules, and multi-assembly hardware systems.
• Translate requirements into architectural concepts and drive designs through verification and production.
• Develop digital hardware architectures, block diagrams, circuits, and detailed schematics.
• Design multilayer PCBs/CCAs with processors, FPGAs, memory and high-speed interfaces.
• Perform circuit analysis, simulation, and design verification to meet performance and reliability requirements.
• Collaborate with layout engineers to enforce critical design constraints.
• Select components and conduct trade studies; support hardware with FPGA firmware and embedded software.
• Develop hardware test plans and conduct laboratory checkout and troubleshooting.
• Partner with systems, software, manufacturing, and test teams to transition to production.
• Provide technical guidance and participate in design reviews for process improvements.

Skills

PCB design

Digital design

FPGAs

Hardware integration

Lab equipment

Tools

PCB design tools

Schematic capture tools

FPGA development tools

Job description

Benefits

• Competitive salary


• Health insurance


• Paid time off


• Relocation bonus

Principal Digital Design Engineer

Legion Technical Solutions LLC (LTS)

Location: Tucson, AZ | On-Site

Advance the Technology Behind Mission-Critical Defense Systems

Legion Technical Solutions (LTS) is seeking an experienced Principal Digital Design Engineer to support the development of advanced digital electronics for sophisticated defense and aerospace applications.

This opportunity is ideal for an accomplished electrical engineer who thrives on solving complex technical challenges, takes ownership of hardware designs from concept through production, and enjoys collaborating with multidisciplinary engineering teams.

As a Principal Digital Design Engineer, you will play a key role in designing, analyzing, simulating, testing, and integrating complex digital electronic modules and circuit card assemblies (CCAs) used in next-generation defense systems.

Key Responsibilities

• Lead the design and development of complex digital electronic circuits, modules, and multi-assembly hardware systems.


• Take hardware designs from initial requirements and architectural concepts through detailed design, verification, integration, and production.


• Develop digital hardware architectures, including block diagrams, circuit designs, and detailed schematics.


• Design sophisticated multilayer printed circuit boards (PCBs) and circuit card assemblies (CCAs) incorporating processors, FPGAs, memory devices, and high-speed digital interfaces.


• Perform circuit analysis, simulation, and design verification to ensure electrical performance, reliability, and compliance with system requirements.


• Collaborate with PCB layout engineers to establish and implement critical design constraints.


• Conduct component selection, engineering trade studies, and technical evaluations.


• Support integration of hardware with FPGA firmware and embedded software.


• Develop and execute hardware test plans, perform laboratory checkout, and troubleshoot complex electronic systems.


• Partner with systems, software, manufacturing, and test engineering teams to transition designs from development into production.


• Provide technical guidance, participate in design reviews, and contribute to continuous improvements in engineering processes and product performance.

Required Qualifications

• Minimum 8 years of professional experience developing and designing electronic circuits and multi-assembly electronic systems.


• Demonstrated ability to independently take a digital hardware design from requirements or block diagrams through complete hardware development, verification, and integration.


• Strong experience with PCB design processes, including schematic capture, circuit analysis, simulation, and design verification.


• Proven expertise developing complex multilayer circuit card assemblies and applying electrical and physical design constraints.


• Experience designing digital electronic hardware incorporating processors, FPGAs, memory, and associated interfaces.


• Familiarity with FPGA or embedded software development and experience supporting hardware programs from development through production.


• Experience defining and analyzing requirements, developing hardware architectures, selecting components, and performing engineering trade studies.


• Hands-on experience with laboratory test equipment, hardware checkout, troubleshooting, and integration.


• Strong analytical, problem-solving, technical communication, and cross-functional collaboration skills.

Preferred Qualifications

• Experience designing digital electronics for aerospace, defense, missile, or other high-reliability applications.


• Familiarity with high-speed digital interfaces and communication protocols, including PCIe, Ethernet, I2C, SPI, and UART.


• Experience with signal integrity, power integrity, and high-speed PCB design considerations.


• Proficiency with industry-standard schematic capture, PCB design, and electronic simulation tools.


• Experience supporting hardware qualification, production readiness, manufacturing troubleshooting, and design improvements.


• Demonstrated technical leadership in complex electronic hardware development programs.

Why Join Legion Technical Solutions?

At Legion Technical Solutions, we connect exceptional engineering talent with challenging opportunities supporting some of the nation's most advanced aerospace and defense technologies.

Our team is committed to providing a professional, responsive, and candidate-focused experience. We recognize the expertise our engineers bring to every assignment and value the contributions they make to critical engineering programs.

Through LTS, you will have the opportunity to:

• Work on sophisticated, mission-critical digital electronics technologies.


• Contribute to technically challenging hardware development programs.


• Collaborate with experienced engineering professionals across multiple disciplines.


• Apply your technical expertise throughout the complete product development lifecycle.


• Build your career while supporting innovative aerospace and defense solutions.

Legion Technical Solutions LLC is an Equal Opportunity Employer. We consider qualified applicants without regard to race, color, religion, sex, national origin, age, disability, veteran status, or any other legally protected characteristic.