Systems Integration & Test Engineer III / IV

Zone 5 Technologies

$129K — $170K *
Aerospace & Defense
Less than 5 years of experience
Job Overview by Ladders

Qualifications

  • Bachelor's degree in relevant engineering field
  • 3-8+ years of experience in aerospace integration/test
  • Strong understanding of embedded systems and avionics architectures
  • Experience working independently in lab/test environments

Responsibilities

  • Develop and maintain flight-representative HITL rigs
  • Integrate avionics, sensors, and control systems into test environments
  • Develop scripts/tools for simulation-driven testing
  • Lead feature validation and signal verification activities
  • Develop and maintain MATLAB/Simulink models for system validation
  • Execute and lead integration test procedures
  • Identify, troubleshoot, and resolve integration issues

Benefits

  • Competitive total compensation package
  • Comprehensive benefit package options include medical, dental, vision, life, and more
  • 401k with company-match
  • 4 weeks of paid time off each year
  • 12 annual company holidays
Full Job Description
Role Summary

At Zone 5 Technologies, Systems Integration & Test Engineers support the development and execution of Hardware-in-the-Loop (HITL) environments, as well as the integration, bring-up, and validation of new technologies and features.

This role is hands-on and execution-focused, operating within a collaborative cross-functional team to mature, integrate, test, and troubleshoot avionics, systems, and subsystems prior to production.

Mid-level engineers in this role independently develop & execute integration and HITL test environments, own subsystem-level integration efforts, and play a key role in validating hardware and software prior to testing. This position balances hands-on engineering with increasing technical ownership and responsibility.

Responsibilities

HITL Development & Ownership
  • Develop and maintain flight-representative HITL rigs
  • Integrate avionics, sensors, and control systems into test environments
  • Develop scripts/tools for simulation-driven testing
  • Lead feature validation and signal verification activities

Model-Based Development (Software)
  • Develop and maintain MATLAB/Simulink models for system validation
  • Support code generation and embedded integration
  • Validate control logic and system performance

Avionics Integration (Avionics)
  • Design wiring harnesses and signal routing architectures
  • Validate communication protocols (CAN, Ethernet, UART)
  • Perform signal integrity and timing analysis

Mechanical Integration (Mechanical)
  • Design packaging solutions considering SWaP constraints
  • Support thermal management and environmental validation
  • Develop integration hardware and mounting solutions

Ground Testing & Flight Support
  • Execute and lead integration test procedures
  • Identify, troubleshoot, and resolve integration issues
  • Support flight test campaigns and on-aircraft validation


Qualifications
  • Bachelor's degree in relevant engineering field
  • 3-8+ years of experience in aerospace integration/test
  • Strong understanding of embedded systems and avionics architectures
  • Experience working independently in lab/test environments


Preferred
  • SIL / HIL experience
  • Flight test support experience
  • Configuration management experience
  • UAV/autopilot integration experience


Leveling Signals
  • Works independently on well-defined problems
  • Owns subsystems or test environments
  • Mentors junior engineers
  • Contributes to system-level decisions

Pay Range

Level III - $129k - $149k

Level IV - $150k - $170k

Pay range for this role

$129,000-$170,000 USD

What's in it for you:

Benefits:
  • Competitive total compensation package
  • Comprehensive benefit package options include medical, dental, vision, life, and more.
  • 401k with company-match
  • 4 weeks of paid time off each year
  • 12 annual company holidays

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