About the role#
As an Optical Engineering Intern, you will join a team focused on the development of large reflective remote sensing systems. You will partner with optical specialists and cross-functional teams to solve technical problems, gaining hands-on experience with advanced optical and opto-electronic systems. You will contribute to the full development cycle, from initial design concepts to final system testing.
What you'll do#
- Support projects related to large reflective remote sensing systems.
- Perform optical system modeling and design tasks.
- Analyze interferometric data using tools such as 4D or MetroPro.
- Create and review error budgets for SFE/WFE performance.
- Model optical characteristics, including PSD or Encircled Energy.
What you'll need#
- Currently pursuing a Master's degree in Optical Engineering or a closely related field.
- Understanding of geometrical optics and Fourier optics.
- Experience or coursework in optical system modeling.
- Familiarity with interferometry and related analytical tools.
- Legal authorization to work in the United States without employer sponsorship.
- Ability to successfully complete a pre-employment drug screening.
- A GPA of 3.0 or higher is preferred.
- Previous internship, co-op, or other work experience is preferred.
Location & details#
- This is a summer 2027 internship based in Danbury, Connecticut.
- The role is fully on-site.
- This is a paid, part-time position.
About CACI International Inc
CACI International Inc provides technology and expertise for national security missions. The company operates in sectors including defense, intelligence, cyber, and space. Founded in 1962, it maintains its headquarters in Reston, Virginia. The organization employs over 27,000 people and is a member of the Fortune 500.
How to get in at CACI International Inc
Applying early to CACI International Inc gives you a distinct advantage, as recruiters review applications before the volume becomes unmanageable. Intern Insider sends an instant alert the moment a role matching your target is published, helping you apply among the first. This timing ensures your materials are seen while the hiring team is still building their candidate pool. You can also reach out to recruiters directly to ask about the role or a referral, which often improves your response rate. Intern Insider surfaces the specific recruiters behind company roles, allowing you to bypass the general queue and connect with the people actually making the decisions.



