Kamlesh Kumar

I help businesses turn raw data into reliable, scalable, and actionable systems.
With hands-on experience across data engineering, analytics, automation, and backend development, I specialize in building end-to-end data pipelines and dashboards that actually work in production — not just in theory.

I’ve worked on large datasets, real-time systems, and business-critical analytics, and I understand both technical depth and business impact.

🚀 What I Can Help You With
🔹 Data Engineering & Pipelines

ETL / ELT pipeline design (Batch & Real-Time)

Medallion Architecture (Bronze / Silver / Gold)

Kafka-based streaming pipelines

Data ingestion from APIs, databases, PDFs, Google Sheets

PySpark, Spark SQL, Hive, Trino

Cloud pipelines (AWS / GCP concepts)

🔹 Analytics & Reporting

Advanced SQL (window functions, optimization)

Data modeling & transformations

Business metrics & KPI tracking

Power BI dashboards (DAX, modeling, performance tuning)

A/B testing & analytical insights

🔹 Backend & Automation

Python (production-ready scripts & services)

FastAPI backend development

Cron jobs, schedulers, automation workflows

PDF data extraction (OCR + non-OCR)

Google Sheets & Google Drive automation

WhatsApp automation (custom image generation from data)

🔹 Databases

PostgreSQL, MySQL

MongoDB

Schema design & query optimization