# Prompt Engineering Day1 Lab

> In this video, Zach dives into prompt engineering exercises, focusing on the system prompt and how to enhance chat and resume parsing applications. He emphasizes the importance of setting up environment variables, particularly the OpenAI key, and demonstrates how to interact with the FastAPI backen…

- Web page: https://www.dataexpert.io/lesson/prompt-engineering-day1-lab-oct2025-p737-l1507
- Program: [AIExpert](https://www.dataexpert.io/program/ai-expert)
- Module: Week 1: Prompt Engineering & Basic RAG
- Access: Requires enrollment in AIExpert
- Length: 1 h 1 min video
- Skills: Python, NLP, LLMs, Cloud Platforms, APIs
- Academy: DataExpert.io Academy

## About this lesson

In this video, Zach dives into prompt engineering exercises, focusing on the system prompt and how to enhance chat and resume parsing applications. He emphasizes the importance of setting up environment variables, particularly the OpenAI key, and demonstrates how to interact with the FastAPI backend. He also highlights the significance of the system prompt in shaping AI responses and shares insights on managing response times for API calls.

## Navigation

- Previous lesson: [Prompt Engineering Day 1 Lecture](https://www.dataexpert.io/lesson/prompt-engineering-day1-lecture-oct2025-p737-l1506.md)
- Next lesson: [Prompt Engineering + Basic RAG Day 2 Lecture](https://www.dataexpert.io/lesson/prompt-engineering-day2-lecture-oct2025-p737-l1526.md)