When writing a resume or cover letter, it's important to use strong language to convey your professional experience. Instead of relying on the overused phrase "worked at," consider using synonyms that can provide more detail and emphasize your achievements. Some alternatives include "served as," "held a position at," "contributed to," "supported," "collaborated with," "facilitated," "executed," "managed," "operated," "administered," "lead," "supervised," and "performed duties as." Choose the most appropriate synonym based on the context and your specific job responsibilities, and showcase your skills and accomplishments in a more engaging and memorable manner.