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Salary
$73k – $149k per year
Location
In office (Danbury)
Employment
Full-Time

Confirmed on the employer's own hiring board on Nov 5, 2026. First seen by Alion on Nov 3, 2026. CACI International scores D on the Alion truth index.

Overview
Company
Impact
Profile match
CACI International is an American technology company founded in 1962 that works almost entirely for United States defence, intelligence and federal civilian agencies. It has moved from being a conventional IT services contractor toward supplying its own technology, with a substantial expeditionary electronic warfare and signals intelligence product line, photonics and optical communications for space, and secure network modernisation. Headquartered in Reston, Virginia, the company employs more than twenty thousand people, the majority holding security clearances, and has grown through a steady programme of acquisitions that add differentiated technology rather than headcount alone.
Job Title: Optical EngineerJob Category: EngineeringTime Type: Full timeMinimum Clearance Required to Start: NoneEmployee Type: RegularPercentage of Travel Required: Up to 10%Type of Travel: Local* * *

The Opportunity:

  • Work in a group of optical engineers solving challenging technical problems
  • Work in inter-disciplinary groups on complex optical system design, manufacture, test, and alignment
  • Gain hands-on and analytical experience with optics and optical systems
  • Potential to see complex opto-electronic systems from beginning to end of cycle

Responsibilities:

  • Perform optical analyses of individual optics or optical systems using commercial and in-house software
  • Work with individuals from other disciplines (systems, mechanical, thermal, e.g.)
  • Present analyses to small groups of internal and external customers
  • Document and review procedures used to manufacture and test optics and optical systems
  • Use optical modeling software (Zemax, Code V, FRED, other…) to model optical system performance
  • Work directly with other organizations to oversee testing of optics or optical systems

Qualifications:

Required:

  • Bachelor's degree in Engineering, ideally Optical Engineering or Optical Science, although will consider Physics or Electrical Engineering.
  • Detailed knowledge of basic optical concepts (imaging, WFE, first order optics)
  • Basic skill in Microsoft Office applications (PowerPoint, Word, Excel)
  • Ability to work primarily onsite in Danbury as part of a team
  • History of working as a leader in a small technical team to solve problems
  • Must be eligible to obtain and maintain a U.S. Government Security Clearance.
  • At least one of the desired items below must be demonstrated (but not all)

Desired:

  • Direct experience with designing optical systems using Code V, Zemax, or other software
  • Direct experience testing optical components or systems using standard methods
  • Detailed knowledge of physical optics, Fourier Transforms, pupil functions, point-spread functions
-

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, you’ll be part of a high-performing group dedicated to our customer’s 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. You’ll 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 nation's 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:

$72,700 - $149,200

CACI is an Equal Opportunity 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 other protected characteristic.

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