Background jobs play a crucial role in web applications by offloading time-consuming and resource-intensive tasks from the main user request cycle, enhancing performance, reliability, scalability, and user experience. CampaignCraft, a Next.js application, utilizes Inngest to implement background jobs and real-time updates, allowing users to import contacts and send email campaigns without waiting for these processes to complete. By employing technologies like WebSocket for real-time updates, users receive immediate feedback on the status of operations such as importing contacts or sending bulk emails. This approach not only maintains a responsive UI but also improves transparency and engagement by delivering live progress updates directly to users. Inngest serves as the orchestration engine, offering features like automatic retries, observability, and integrations with platforms like Vercel, ensuring seamless execution of background jobs. The application demonstrates how to integrate background jobs and real-time updates using Inngest in a Next.js environment, ultimately providing a smooth and user-friendly experience.