LinkedIn

Work-life balance is excellent. Upper management is very supportive. I have never been death-marched through completion of a project that had impossible deadlines here. Many companies you talk to will say that they have scaling problems, but compared to LinkedIn, their problems are trivial.

There are some really interesting problems to work on here and the data volume is massive. You won't get many other opportunities to work on a system like this at other companies. The company will invest in new technology even if the payoff will not be realized even in the first 5-10 years.

Making large changes that affect many other parts of the org can be frustrating. It can take years to follow through on a large change because you have to convince so many people who have conflicting incentives to get on board with your proposal.

Executing on the plan can still take years because, while the first 80% of any migration might take a few months, the long tail of other teams can take an entire year or more sometimes. It's OK to be ambitious, but just be prepared for everything to take a really long time.