Shell provides a lot of opportunities to work across multiple businesses and encourages continuous development through job changes and additional responsibilities. It is a great company to work for in terms of work-life balance and provides good benefits.
Cons
Frequent re-organisations and decision-making speed varies greatly across the businesses
Big corporate atmosphere hard to take sometimes. Endless turnover at mid-mgmt level with lots of churn at the asset level as new managers on their way up the ladder stop on your department's rung, make lots of changes, and climb on.