A person who holds a high-rank position under the main chief engineer and assists in engineering tasks.

मुख्य अभियंता का सहायक

English Usage: John was promoted to assistant chief engineer due to his excellent performance.

Hindi Usage: जॉन को उत्कृष्ट प्रदर्शन के कारण सहायक मुख्य अभियंता के रूप में पदोन्नत किया गया।