ApplicationTracker

A lightweight job application tracker built with Streamlit & Supabase.

ApplicationTracker is a clean, focused Streamlit app that helps you log job applications, track follow-ups and outcomes, and actually see your progress without spreadsheets, scattered bookmarks, or trying to remember whether you already applied somewhere.

Features

User Accounts & Secure Data Storage

Users can sign up, log in, and access their own private dashboard. Authentication and data isolation are handled by Supabase Auth and Postgres Row-Level Security.

• Each user has their own application data
• No data is shared across accounts or sessions
• All entries, screenshots, and updates are tied to your Supabase user ID

Clean Application Logging

Store all key details in one place:

• Company & role
• Salary range
• Job posting link
• Short description or highlights
• Notes & red flags
• Follow-up reminders
• Status (Applied > Screens > Interviews > Offer > etc.)
• Screenshot attachments of job postings

Your data is stored in a structured Postgres database backed by Supabase.

Visual Insights

Built-in visualizations give you perspective at a glance:

• Total applications
• Unique companies
• Applications submitted in the last 30 days
• Cumulative applications over time
• Applications by location type (Remote/Hybrid/Onsite)

These charts make it easier to spot real patterns and momentum instead of guessing how your search is going.

Sankey Diagram

A Sankey diagram visualizes how your applications flow from Applied into different outcomes:

• Recruiter screens
• Interviews
• Offers
• Rejections
• Ghosted

This gives you a big-picture view of where applications tend to stall or convert.

Powerful Filtering

Filter your applications by:

• Status
• Location type
• Free-text search (company, role, notes)

Designed to stay fast and usable even as your application list grows.

🛡️ How Your Data Is Stored

ApplicationTracker uses Supabase as its database backend.

What that means in practice:

• Your data is stored in a real Postgres database, not in-memory or tied to a single app session
• The app connects securely using environment-based credentials
• Your data persists across restarts, redeploys, and app sleeps
• The schema lives in Supabase, not in application code

Tech Stack

• Language: Python 3.14
• Frontend: Streamlit
• Authentication: Supabase Auth (email, password)
• Database & API:
  • Supabase: Persistent database backend
  • SQLAlchemy: Database engine & queries
  • psycopg2-binary: Postgres driver
• Data Processing:
  • pandas: Tabular data manipulation
  • numpy: Numeric helpers & data prep
• Visualization:
  • Plotly: Charts & visual insights
  • Pillow: Image handling for job posting screenshots