Data Engineering
Free Data Engineer Roadmap 2026 & 2027
A practical path from foundations and SQL to pipelines, cloud platforms, modelling, and production reliability.
Free KSK Data guides
Free roadmaps and checklists for data careers.
Choose a concise guide for data engineering or AI engineering learning, SQL interview preparation, or analytics portfolio planning. For project and interview packs, explore KSK Data products.
Analytics
SQL Interview Cheat Sheet - 2026 & 2027 Edition
A quick reference for query order, joins, windows, common patterns, and confident explanations.
AI Engineering
AI Engineer Roadmap - 2026 & 2027 Edition
A practical guide from software and data foundations to model evaluation, deployment, and reliable AI systems.
Analytics
Analytics Portfolio Checklist
A practical checklist for choosing a problem, showing analytical depth, documenting decisions, and presenting impact.