Systems Integration & Test Engineer III / IV

Zone 5 Technologies; California (MO); On-site; USD 129,000 - 170,000; Full time

Benefits offered by this job

Medical insurance

401k with company-match

4 weeks of paid time off

12 annual company holidays

Job summary

A leading unmanned aircraft systems company in California is seeking Systems Integration & Test Engineers to develop and execute HITL environments, integrating avionics and sensors into testing. The ideal candidate has a Bachelor's degree and 3–8+ years of aerospace integration experience. Competitive pay ranges from $129,000 to $170,000. Comprehensive benefits include medical, 401k, and paid time off. Join a dynamic team pushing UAS technology boundaries.

Qualifications

• 3–8+ years of experience in aerospace integration/test.
• Strong understanding and experience with avionics.
• Proficient in developing and maintaining embedded systems.

Responsibilities

• Develop and maintain flight-representative HITL rigs.
• Integrate avionics and sensors into test environments.
• Lead feature validation and signal verification activities.

Skills

Embedded systems understanding

Avionics architectures

MATLAB/Simulink

Troubleshooting

Independent work in lab/test environments

Education

Bachelor’s degree in relevant engineering field

Tools

HITL rigs

CAN

Ethernet

UART

Job description

At Zone 5 Technologies, we're redefining what's possible in unmanned aircraft systems. Our team of engineers and innovators is developing cutting‑edge autonomous solutions that push the boundaries of UAS technology - solving complex challenges that matter.

We're building the future of UAS capabilities, and we're looking for exceptional talent to join us. If you're driven by hard problems, energized by rapid innovation, and ready to make an impact on next‑generation flight systems, you belong here.

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

Mechanical Integration (Mechanical)

• Support thermal management and environmental validation
• Develop integration hardware and mounting solutions
• 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

Leveling Signals

• Works independently on well‑defined problems
• Owns subsystems or test environments
• Contributes to system‑level decisions

Pay Range

Level III - $129k - $149k

Level IV - $150k - $170k

Pay range for this role: $129,000 USD - $170,000 USD

What’s in it for you:

• 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

If you are passionate about unmanned aircraft technology and want to be a part of a dynamic and growing company, we would love to hear from you. Apply today and join the Zone 5 Technologies team!

In compliance with federal law, all persons hired will be required to verify identity and eligibility to work in the United States and to complete the required employment eligibility verification form upon hire.

Zone 5 Technologies is a federal contractor and participates in E-Verify to confirm employment eligibility. As required by law, we will verify the identity and employment authorization of all new employees using the E‑Verify system. Learn more about your rights and responsibilities under E‑Verify: https://www.e-verify.gov.