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
Links
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
