Stefan Automation's Work | ContraWork by Stefan Automation
Stefan Automation

Stefan Automation

Automation & Data Analytics | SQL | Power BI | Excel | R

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Cover image for 📊 Sales Performance Analytics Dashboard
📊 Sales Performance Analytics Dashboard (Power BI) This Power BI dashboard was developed as part of a technical case study to demonstrate a business‑first approach to performance analytics. The report is designed to support both executive‑level decision‑making and operational sales management by focusing on: Revenue performance tracking Key performance drivers (Orders & Average Order Value) Team‑level performance monitoring Individual agent insights Data quality validation and exception handling 🔎 Key Functional Areas Executive Overview Provides a high‑level summary of Net Revenue and its primary drivers, supported by a monthly trend and rolling average to identify emerging performance patterns and reduce short‑term volatility. Performance Diagnostics (Region × Time) Enables root‑cause analysis by highlighting when and where performance changes occurred across regions and time periods. Sales Team Monitoring Supports day‑to‑day management through ranked team performance metrics, enabling prioritization of coaching or follow‑up actions. Agent‑Level Analysis Offers a focused performance view per individual contributor, including category mix and territory‑level revenue drivers. Data Quality Monitoring Separates adjustments (e.g. returns, discounts) from gross performance to prevent misleading KPI interpretation. 💼 Business Value Designed to: Monitor operational performance Identify revenue drivers behind month‑over‑month changes Detect under‑ or over‑performing teams Support targeted coaching Enable fast, data‑driven decision‑making 🛠 Tools & Concepts Used Power BI Data Modeling (Fact / Dimension) KPI Design MoM Analysis Driver‑Based Revenue Monitoring AOV Tracking Data Quality Checks
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Cover image for OpsHub – Internal Operations System
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OpsHub – Internal Operations System A custom internal tool built to centralize client management, project tracking, task workflows, and invoicing in one clean dashboard. It replaces spreadsheets and manual coordination with a structured, role-based system that improves operational visibility and financial tracking. Ideal for small teams that need clarity, control, and scalable internal workflows.
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Cover image for Internal invoicing and billing web
Internal invoicing and billing web application for tracking invoices, payment status, and basic revenue records, with CRUD workflows and a clear operational dashboard.
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Cover image for A production‑ready internal web application
A production‑ready internal web application designed to help small teams manage clients and their ongoing work in a structured and maintainable way. The application provides authentication, full CRUD functionality for client records, engagement tracking per client, and detailed views with notes and status history. Clients can be archived instead of deleted to preserve operational data. An overview dashboard presents key operational metrics, including total and active clients, open versus completed engagements, and recent activity, using simple summary cards and basic visualizations. Built with React and TypeScript on the frontend and a Node.js / Express backend, the project focuses on clean architecture, realistic CRUD logic, and MVP‑level internal tooling.
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Cover image for Internal client management web application
Internal client management web application for managing clients and their ongoing engagements. Includes authentication, full CRUD functionality, engagement tracking, and a clean dashboard overview, designed as a realistic internal tool for small teams.
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Cover image for A production‑ready web application demonstrating
A production‑ready web application demonstrating real‑world CRUD functionality and internal dashboards commonly used by small teams and startups. Includes email/password authentication, a full CRUD system with sorting and filtering, detailed item views, and an overview dashboard with status breakdowns and recent activity. Admin features allow archiving records and basic role-based access. Built with React and TypeScript on the frontend and a Node.js / Express API, with a clean, maintainable codebase and a neutral, professional UI designed as an internal tool rather than a marketing site.
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