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.
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Event-Driven Pipelines with Lambda and S3
An event-driven pipeline starts work the moment a file arrives in S3. This guide explains S3 event notifications, writes a Lambda handler that validates and converts a real file, and runs it twice on the same event to show idempotency. It also covers encoded keys, loops, failure handling, and when to add a queue.
Data Modeling in Redshift: A Practical Guide
How to model data in Amazon Redshift: a star schema written as Redshift DDL, why primary and foreign keys are declared but not enforced, how to choose column types, where distribution and sort keys fit, what to do with semi-structured data, and when a materialized view or a wide table is the better answer.
Glue Workflows vs Step Functions for Orchestration
Glue workflows and Step Functions can both run a multi-step pipeline on AWS, but one only knows about Glue and the other coordinates almost any service. This comparison covers what each can start, how they handle failure and reruns, how they are triggered and billed, and where managed Airflow fits as a third option.
Streaming Data with Kinesis to S3 and Redshift
A practical guide to landing streaming data on AWS: Kinesis Data Streams into S3 with Firehose, how size-or-time buffering decides file counts, shown on a real day of 77,033 events, converting to Parquet and partitioning on the way, the two routes into Redshift, duplicates, and the compaction most streams still need.
How to Start an AWS Cloud Career in 2026
Advice on starting an AWS cloud career often points straight at a 'cloud engineer' job. Survey data on the 9,222 professional developers who used AWS tells a different story: most are application developers, and specialist cloud roles are mostly held by experienced people. Here is the data, and a practical 2026 start.
AWS Certified Data Engineer Associate: Exam Guide
A guide to the AWS Certified Data Engineer - Associate exam, DEA-C01, taken from the official exam guide: format, length, cost and passing score, the four content domains and their weightings, what is out of scope, the services to know, and a study plan organised by domain with hands-on practice for each.