Learn Finnish: Työntekijä ilmoittaa väärinkäytöksestä, jottei yritys kärsi. - The employee reports the misconduct, so that the company doesn't suffer.

It is a fused word made from the conjunction jotta (so that) and the negative verb ei (does not). Because the subject of the subordinate clause is yritys (the company, a third-person singular subject), the negative verb takes the third-person singular form ei, resulting in jottei. If the subject were 'I', it would be jotten (jotta + en).

Why is the verb kärsi not conjugated with a normal third-person ending?

Because jottei contains the negative verb ei, the main verb of that clause must be in the connegative form. For the verb kärsiä (to suffer), the present connegative is kärsi. It is exactly the same form you would use in a standard negative sentence like yritys ei kärsi.

Why does the word for misconduct (väärinkäytös) end in -stä here?

The verb ilmoittaa (to report or announce) requires the thing being reported to be in the elative case (-sta/-stä). You can think of it as reporting 'about' the misconduct.

What are the parts of the compound word väärinkäytös?

It is made up of väärin (wrong, incorrectly) and käytös (behavior, conduct). Together they literally mean 'wrong behavior', which is used for misconduct or abuse.