EMPLOYEE PERFORMANCE REVIEW

A Python-built performance review insights dashboard revealing overdue risk, tenure trends, and manager behavior patterns across a 2,254-employee dataset.

Category

People Analytics • Data Visualization

Tech Stack

Python • Pandas • Numpy • Matplotlib • Seaborn

Employee Performance Review Dashboard - Systemic Risk & Behavioral Insights

📊 Key Insights

  • Compliance-heavy departments (Legal & Finance) had the highest overdue rates, contradicting leadership expectations

  • Manager rating style influenced scores more than rating volume, raising fairness and calibration questions

  • The performance review backlog reflected behavior patterns, not tooling or workflow issues (accountability mattered more than reminders)

These insights reframed performance reviews from an administrative exercise to a leadership behavior challenge.

🏷️ Overview

This project analyzes systemic delays in employee performance reviews across a dataset of 2,254 employees. Using Python-based data visualization, it highlights overdue risk, tenure-linked performance patterns, and manager behavior profiles. This enables HR and leadership to intervene earlier and support more consistent performance conversations.

❗ Problem

  • 61.1% of performance reviews were overdue, affecting recognition and development

  • Operations, Legal, and Finance exceeded 65% backlog despite strict compliance culture

  • The biggest bottleneck occurred at the approval stage, not during review completion

  • Leadership lacked visibility into tenure trends and rating behaviors

  • Reporting was manual and not scalable

🧩 Solution

  • Built a performance insights dashboard using Python, Matplotlib, and Seaborn

  • Segmented departments into low / medium / high overdue risk, enabling targeted support

  • Analyzed tenure-based trends to align feedback timing with development needs

  • Identified four manager rating archetypes to improve calibration and fairness

  • Reduced reporting effort by ~60% and supported monthly instead of quarterly review conversations

The dashboard provided a single source of truth for performance review health and leadership accountability.

🛠️ Methodology

  • Cleaned and transformed synthetic HR dataset (2,254 employees) to isolate review status, stage, rating, department, and tenure variables

  • Conducted exploratory analysis across:

    • Completion bottlenecks

    • Departmental overdue risk

    • Tenure-performance trends

    • Rating distributions

    • Manager behavior clusters

  • Built visualizations using Python (Pandas, NumPy, Seaborn, Matplotlib)

  • Combined visual findings with an executive narrative layer to support decision-making and prioritization

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