Mercury Systems reviews

2.9

39% would recommend to a friend

(763 total reviews)
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Bill Ballhaus

51% approve of CEO

35% positive business outlook

Mercury Systems has an employee rating of 2.9 out of 5 stars, based on 763 company reviews on Glassdoor which indicates that most employees have an average working experience there. The Mercury Systems employee rating is 20% below average for employers within the Aerospace & Defense industry (3.6 stars).

Reviews by job title

763 reviews
4.0
Apr 10, 2026
Recommend
CEO approval
Business Outlook

Pros

Mercury Systems is a strong company with a diverse portfolio of products and programs across multiple locations in the U.S. The work varies by site, with some divisions performing exceptionally well while others face challenges—which is not uncommon in the defense and aerospace industry. The company demonstrates a growth mindset and encourages collaboration across teams and locations to design, develop, and deliver complex systems. There are opportunities to work on meaningful, mission-critical programs alongside experienced engineers. Compensation benefits are solid, with a strong 401(k) matching program and a competitive overall benefits package.

Cons

The company’s growth strategy through acquisitions can sometimes introduce risk. In certain cases, smaller companies are acquired based on strong potential or hype but may struggle to deliver sustained performance post-acquisition. A notable example is Physical Optics Corporation, which previously relied heavily on SBIR grants as a primary revenue source. Following acquisition, that funding model was no longer viable, which contributed to a loss of revenue and downstream program challenges. Some programs across the organization have faced difficulties in execution and funding stability, occasionally resulting in staffing reductions or the discontinuation of efforts. For prospective employees, stability can vary by division. More established groups—such as microelectronics—tend to offer greater consistency compared to newer or recently acquired segments.

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Glassdoor has 855 Mercury Systems reviews submitted anonymously by Mercury Systems employees. Read employee reviews and ratings on Glassdoor to decide if Mercury Systems is right for you.