co-worker (n)

Mike represents his co-workers at the monthly management meetings.
Collaborating with a co-worker on the project allowed us to combine our strengths and produce excellent results.
She frequently enjoys lunch with her co-workers in the office cafeteria to foster a sense of teamwork.
In the team meeting, each co-worker provided updates on their respective tasks and progress.
Building a positive relationship with a co-worker can contribute to a more enjoyable and productive work environment.