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Systems Test Engineer

CACI


Job Location:

Los Gatos, CA - USA

Yearly Salary: USD 103800 - 218100
Posted: 4 October 2026 (Yesterday)
Application Deadline: 1 January 2027
Vacancies: 1 Vacancy

Job Summary

Job Title: Systems Test Engineer

Job Category: Engineering

Time Type: Full time

Minimum Clearance Required to Start: None

Employee Type: Regular

Percentage of Travel Required: None

Type of Travel: None

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The Opportunity:
The Systems Test Engineer will lead the integration verification and validation of freespace optical communication systems across IRAD DVT qualification and production programs. They will take ownership of systemlevel test strategies and the automated test infrastructure overseeing all execution from initial prototype bringup through final release into this role the engineer will apply expert handson experience with optical bench optomechanics electrooptical integration and communications performance testing to ensure that each system meets its technical and performance requirements. They will plan and carry out environmental testing activities including thermalvacuum testing and vibration testing. Additionally the Systems Test Engineer will serve as a senior technical resource for crossfunctional teams collaborating closely with systems optics electrical mechanical software manufacturing and quality engineering groups.

Responsibilities:


  • Lead hardware software and optomechanical integration of FSO communication systems.
  • Develop and execute system-level verification plans DVT procedures qualification plans and production test methods.
  • Create Python-based automation for instrument control data acquisition test sequencing analysis and reporting.
  • Perform hands-on optical bench integration alignment adjustment calibration beam routing and troubleshooting.
  • Conduct FSO performance testing including link margin received power acquisition pointing and tracking throughput and bit-error rate.
  • Plan and execute TVAC and vibration testing including test readiness instrumentation functional checks execution and post-test analysis.
  • Lead system bring-up failure investigation root-cause analysis and corrective-action verification.
  • Develop test fixtures harnesses instrumentation configurations and automated test procedures.
  • Generate and maintain test plans procedures requirements traceability reports and anomaly documentation.
  • Transition validated DVT and qualification methods into production while improving test coverage yield and test time.
  • Support IRAD efforts by developing new test methods and evaluating emerging FSO technologies.
  • Mentor engineers and technicians in systems test Python automation optical bench practices and environmental testing.


Qualifications:

Required:

  • Bachelors degree in Electrical Engineering Optical Engineering Systems Engineering Physics or a related field or equivalent experience.
  • Ten or more years of experience in systems integration electro-optical test communications test aerospace hardware test or a related discipline.
  • Expert-level Python skills including automated test frameworks instrument control data acquisition analysis and reporting.
  • Strong knowledge of free-space optical communications including link budgets acquisition pointing and tracking photodetection modulation and BER.
  • Expert hands-on experience integrating aligning adjusting and troubleshooting optical bench opto-mechanics.
  • Demonstrated experience developing and executing system-level test plans for DVT qualification acceptance and production.
  • Experience planning and executing thermal-vacuum and vibration testing for electro-optical or aerospace systems.
  • Experience with optical electrical mechanical communications and environmental test equipment.
  • Strong troubleshooting root-cause analysis technical documentation and cross-functional communication skills.



Desired:

  • Experience with FSO systems for aerospace defense UAV VTOL satellite or other demanding applications.
  • Experience with Python tools such as PyVISA NumPy SciPy Pandas Matplotlib pytest or equivalent.
  • Experience transitioning DVT or qualification test methods into production including yield improvement and test-time reduction.
  • Knowledge of laser safety fiber optics RF communications or hardware-in-the-loop testing.


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What You Can Expect:

A culture of integrity.

At CACI we place character and innovation at the center of everything we do. As a valued team member youll be part of a high-performing group dedicated to our customers missions and driven by a higher purpose to ensure the safety of our nation.

An environment of trust.

CACI values the unique contributions that every employee brings to our company and our customers - every day. Youll have the autonomy to take the time you need through a unique flexible time off benefit and have access to robust learning resources to make your ambitions a reality.

A focus on continuous growth.

Together we will advance our nations most critical missions build on our lengthy track record of business success and find opportunities to break new ground in your career and in our legacy.


Pay Range:

There are a host of factors that can influence final salary including but not limited to geographic location Federal Government contract labor categories and contract wage rates relevant prior work experience specific skills and competencies education and certifications. Our employees value the flexibility at CACI that allows them to balance quality work and their personal lives. We offer competitive compensation benefits and learning and development opportunities. Our broad and competitive mix of benefits options is designed to support and protect employees and their families. At CACI you will receive comprehensive benefits such as; healthcare wellness financial retirement family support continuing education and time off benefits.

The proposed salary range for this position is:

$103800 - $218100

CACI is anEqualOpportunity Employer. All qualified applicants will receive consideration for employment without regard to race color religion sex pregnancy sexual orientation age national origin disability status as a protected veteran or any otherprotectedcharacteristic.

Required Experience:

IC


About Company

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CACI employs a diverse range of talent to create an environment that fuels innovation and fosters continuous improvement and success. At CACI, you will have the opportunity to make an immediate impact by providing information solutions and services in support of national security miss ... View more

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