This is post 13 in my Data Engineering with AWS retelling series.
We have spent the last several chapters ingesting data, transforming data, optimizing data. Pipelines everywhere. But here is the question nobody asks often enough: who is actually going to use all of this?
This is post 12 in my Data Engineering with AWS retelling series.
In Part 1, we covered the generic data preparation transforms: converting to Parquet, partitioning, PII protection, and data cleansing. Those transforms work on individual datasets and do not need much business context. Now we get to the transforms that actually create business value. The ones that combine multiple datasets, add context, flatten structures, and produce the tables that analysts and dashboards consume.
Chapter 12 is the one where everything moves to the cloud. If you’ve been following along, we’ve been talking about databases, pipelines, data quality, security, governance, and big data. All of that can run on your own hardware. But most teams today don’t do that. They use cloud providers. This chapter explains why, and more importantly, how.
This is post 11 in my Data Engineering with AWS retelling series.
You have data sitting in your data lake. Raw CSV files, JSON dumps, database extracts. It is all there, technically available, but trying to run analytics on it is painfully slow and expensive. This chapter is about fixing that. Transforming raw data into something optimized, clean, and ready for actual use.
This is post 10 in my Data Engineering with AWS retelling series.
Part 1 covered batch ingestion – pulling data from databases into S3 on a schedule. But not all data waits politely for a nightly load. IoT sensors, vehicle telemetry, live gameplay events, social media mentions – this data streams in continuously and often needs to be processed in near-real-time.
This is post 9 in my Data Engineering with AWS retelling series.
You have your whiteboard architecture from Chapter 5. You know who your data consumers are and what they need. Now it is time to actually move data. Chapter 6 covers data ingestion – getting data from wherever it lives into your AWS data lake. This first part focuses on batch ingestion from databases and files. Part 2 covers streaming.
This is post 8 in my Data Engineering with AWS retelling series.
You have learned about data engineering principles, data architectures, the AWS toolkit, and data governance. Now comes the part where it all comes together. Chapter 5 is about designing an actual data pipeline. Not writing code yet. Just thinking. Planning. Drawing on a whiteboard.
In Part 1, we covered the theory: what data security and governance mean, how catalogs prevent your lake from becoming a swamp, and the core AWS services for encryption and identity. Now it is time to put it into practice.
You can have the fastest data pipeline on the planet. You can have the slickest dashboards, the fanciest machine learning models, the most optimized Parquet files. None of it matters if your data gets stolen, mishandled, or dumped into a lake that nobody can navigate.
In Part 1 we covered how data gets into AWS. Now comes the good part: what do you actually do with it once it is there? This post covers the services for transforming raw data, orchestrating multi-step pipelines, and letting people query and visualize the results.
Chapter 3 is massive. It is basically a catalog of every AWS service a data engineer will touch, from getting data in to getting answers out. So I am splitting it into two posts. This first part covers how data gets into AWS – all the ingestion services, the streaming tools, and the physical devices AWS will literally ship to your door.
Chapter 1 gave us the “who” and “why” of data engineering. Now it is time for the “where.” Where does all that data actually live? How do organizations store, organize, and serve billions of rows of information so that someone on the business side can pull up a dashboard and make a decision before lunch?
If someone told you twenty years ago that data would become more valuable than oil, you would have laughed. But here we are. The most valuable companies on the planet are not drilling for crude. They are collecting, processing, and squeezing insights out of massive piles of data. And behind every one of those companies, there is a team of data engineers making it all work.
Every company today is drowning in data. Clicks, transactions, sensor readings, log files, social media posts. It just keeps coming. But raw data sitting in a pile is useless. The real magic happens when someone builds the pipes that move it, clean it, reshape it, and deliver it to the people who need it.