I worked at Naval Sea Systems Command part-time (Less than a year)
Lots of opportunities for advancement, full or partial payment support for graduate degrees, and access to advance technologies.
Government organization with lots of rules to follow.
Advice to Management
NAVSEA is due for major management shakeup with a complete bottoms up review.
I applied through college or university. I interviewed at Naval Sea Systems Command.
30 minute interview with no technical questions. Make sure to read the USAJOBS.gov application process carefully and apply for the highest GS that you can. Interviews are not required for all positions.