At work, ISTJs are dependable and meticulous. ISTJs take deadlines and specifications very seriously, and work independently and systematically to complete the tasks they are given. ISTJs value a stable work environment with clear expectations and few surprises. They are at their best when they can create detailed plans of action and follow them with little deviation.
Although ISTJs may like to do quite a bit of their work independently, they often appreciate the value of participating on a team as well, especially if their colleagues are reasonable and businesslike and there is a clear hierarchy so that they know who is in charge.
An ideal job for an ISTJ allows them to solve logical problems in an orderly way. An ideal work environment for an ISTJ is quiet, organized, and structured, with rules and regulations that are well established and clearly adhered to by all.