Sentence examples for be proficient at from inspiring English sources

"be proficient at" is a correct and usable phrase in written English.
It means to be skilled or competent in something. Example: She is extremely proficient at playing the violin, having won several awards for her performances. Other examples: 1. It is important to be proficient at using Microsoft Excel for many job positions nowadays. 2. He needs to be proficient at swimming in order to join the swim team. 3. In order to become a successful chef, one must be proficient at creating unique and delicious dishes. 4. She is known for being proficient at public speaking and is often invited to give speeches at conferences. 5. It takes years of practice to be proficient at playing the piano. 6. As a language teacher, he is expected to be proficient at speaking and writing in multiple languages. 7. To excel in the business world, one must be proficient at networking and building professional relationships. 8. The new employee was hired because she was proficient at using Adobe Photoshop, a skill that was highly valued by the company. 9. He spent countless hours studying and practicing before he became proficient at solving complex math equations. 10. It is impressive how proficient she is at solving crossword puzzles, completing even the most difficult ones in record time.