IT Career Guides & Free Resources
Expert roadmaps, tutorials, salary guides and interview prep across Data Science, Generative AI, Python, Cloud & Analytics — written by GloryTecks trainers in Hyderabad.
Featured Guides
Data Science Roadmap 2026: A Complete Step-by-Step Guide
A data science roadmap in dependency order, from Python and SQL through cleaning, statistics and honest model evaluation to communicating results, with an exit test at every stage and one dataset that carries through the whole path.
What Is Generative AI? A Complete Beginner's Guide
What generative AI is, in plain language: how language models produce text one token at a time (shown with a tiny runnable model), how chat models are trained, how image models differ, what the technology is reliable for, and why it confabulates.
Learn Python from Scratch: A Complete 2026 Roadmap
How to learn Python from zero: install a current version (including the new Windows install manager), then work through seven stages, from values and loops to files, virtual environments, classes and tests, each ending with a small program you should be able to write on your own.
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Chain-of-Thought Prompting: Making LLMs Reason
Chain-of-thought prompting asks a model to write out its reasoning before the answer. This guide explains why that helps, measures it on 20 arithmetic word problems with a small open model, counts what the extra tokens cost, and explains why newer reasoning models have made the instruction unnecessary for them.
Agentic AI Roadmap 2026: From Prompts to Autonomous Systems
Agentic AI is the most hyped corner of generative AI and the easiest to learn in the wrong order. This roadmap builds it in seven stages, from reliable prompts and structured output through retrieval and tools to workflows, agents and production safeguards, with something to build at each stage.
GCP Professional Data Engineer Certification Guide
The Professional Data Engineer exam tests design judgement more than commands. This guide sets out the facts from Google's exam page, the five sections and their weights, a table matching the product names in the exam guide to the names in today's documentation, and a way to prepare by building.
Linux Interview Questions for Data Engineers
Linux rounds for data engineers are about handling data files from the command line and writing shell steps that fail loudly. Eight questions are answered with real commands on a 2-million-line electricity file and the NYC taxi zone table: sizing files, awk sums, counting, pipefail, parallel chunks, find, export.
Ollama Tutorial: Run LLMs Locally on Your Machine
Ollama runs open language models on your own computer with one install. This tutorial walks through the command line, the REST API, conversation history, the OpenAI-compatible endpoint and a custom model built from a Modelfile, all run on an ordinary laptop, with the settings and limits worth knowing.
BigQuery Window Functions and Analytic SQL
A window function computes a value for each row from a set of related rows, without collapsing them. This guide works through running totals, moving averages, period change, share of total and top-per-group on 2.9 million real trips, then shows the two frame mistakes that return wrong numbers without an error.