I'm a writer man. 1. Interact with People in a Friendly Manner. 2. Communicate Effectively. 3. Correctly Interpret Customer Requests & Tech Recommendations. 4. Understand the Technology. 5. Make Accurate Notes & Calculations. 6. Think on Their Feet. Service writers ensure that a customer's needs are being fulfilled. Most commonly employed by companies offering automotive repair services, service writers possess product knowledge and bring efficiency to the relationship between a customer and the business. Working as a liaison for the business, an effective service writer brings competence to a customer's experience by coordinating the transaction.