Another start up run by megalomaniacs - Product and Engineering Illumio Employee Review

1.0
Sep 20, 2021
Recommend
CEO approval
Business Outlook

Pros

Illumio is family friendly and tries hard. The positioning and product market fit are great.

Cons

The Engineering team is in a constant state of disarray. The original eng leaders at the top are conflict avoidant and incapable of making hard decisions at scale. Last year a new exec was brought in on Eng (at the boards request too) to operationalize the work and make things hum. No one gave him any power to do just that though so it’s all still a cluster. Certain teams can’t hire because the whole team of”founding engineers” is so toxic they can’t hire people who might challenge them. The HR, Finance and Legal teams are all starved for humans to do work and the time to do it. Burnout is real and the whole company is suffering for it. If the people who take care of the people are burnt out, no care can be taken. I’ve heard we have a new Chief of People, so maybe they will get things on track. CEO’s ego is massive, and is focused on growth and getting back the office. He can’t take feedback and needs a internal comms handler because it’s obvious he can’t stay on message. He doesn’t seem to know how to invest at scale or how to motivate the new sales force he’s hired to achieve their very challenging goals. They are demoralized whenever he comes and talks to the team. Legacy employees primarily related to Customer Success are better for smaller stages of companies, though at least the new VP seems to have his head on straight. Maybe he can take over soon? Overall, I really question if Illumio can survive scaling. It’s always hard to do it, but it shouldn’t be this hard. One false start is an iteration, a few false starts is a pattern.

Explore other reviews about Illumio

5.0
Jun 9, 2026
Recommend
CEO approval
Business Outlook

Pros

Transparent, open culture – Illumio emphasizes honesty and direct communication, even on tough topics Recognition-driven environment – wins are celebrated across teams and employees are recognized by peers and leadership Collaborative + partnership mindset – teams operate with accountability and strong cross-functional alignment Inclusive and diverse workplace – strong emphasis on belonging, varied backgrounds, and different perspectives

Cons

High standards, accountability, and pressure to perform Not necessarily negative—but can feel intense depending on the team/role. Change happens often if you don't like change you will not like it here. I love change and I love that we are always trying to improve or be better. 401(k) plan without company matching- this is normal for our stage and employee count but candidates mention this alot. I wanted to flag it. They do give us a retirement savings account and mine is doing well but no match.

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Illumio Response
2w
Hi there and thanks for taking time to share your feedback, and thank you for your contribution to our company and our culture. It sounds like we're doing well in delivering on what you joined us for in terms of your experience, which is great to hear. And thanks for sharing some of the perspectives on the pace of change; I agree that when you're growing and scaling like we are, it can feel fast - as a senior leadership team, we're committed to ensuring we do our best to communicate at the team, org and company level as often and as transparently as we can. Please keep the feedback coming! Thanks, David Chief People Officer
4.0
Jul 5, 2026
Recommend
CEO approval
Business Outlook

Pros

Nice location to work. A lot of daylight. reasonable food for free. Most people are positive

Cons

Planning is not great. A lot of zigzaging.

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Illumio Response
5d
Hi there and thanks so much for taking time to share feedback about your experience supporting us here at Illumio. I agree that our offices are great places to work, connect and collaborate with colleagues, and I thank you for your feedback on the engineer <> QA dialogue that is always helpful to ensure that everyone is on the same page and pulling in the same direction. Please keep the feedback coming! Thanks, David Chief People Officer
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