SQL project ideas with build plans

Projects where the database design is the interesting part. Below are 3 SQL projects, each with features, a roadmap split into phases, and the mistakes that usually cost people time.

Filter by level: Intermediate developers

• Job application trackerA kanban board for job applications with notes, contacts, reminders and a weekly summary.Intermediate3 to 4 weeksNext.jsSQLTypeScript
• Expense tracking API with FastAPIA documented REST API for expenses and budgets with auth, pagination and reports.Intermediate3 weeksPythonSQL
• Background job queue with retriesA job queue on Postgres with retries, backoff, scheduling and a small dashboard.Advanced5 to 6 weeksNode.jsSQLTypeScript