place of employment; workplace
Refers to the company, office, or organization where one works. Often used in formal or business contexts.
My workplace is close to the station.
Please fill in your place of employment on the resume.
勤務先 is the more formal, often written-form equivalent of 勤め先, commonly used on official documents and forms.
Compound of 勤務 (kinmu, 'work, service') + 先 (saki, 'destination, place').