KKkranthi kiraninkranthikiran.hashnode.dev·Jun 10 · 10 min readHow We Scaled a Predictive Analytics Application to Handle 5x Volume Growth Using DynamoDB and Kinesis Data StreamsIn this post, I’ll share how we transformed our Predictive Analytics Platform from an on-premises relational data infrastructure to a cloud-native NoSQL architecture, enabling us to process significan00
CSCamma Smithindynamosql.hashnode.dev·Jun 8 · 11 min readRunning Real SQL on DynamoDB: How It Actually Works DynamoDB is good at what it was designed for: fast, predictable reads and writes against known access patterns. It is not designed for ad-hoc queries. If you need to join two tables, aggregate by a co00
SPSAI PRANEETH BHATTUinsaipraneethbhattu.hashnode.dev·Jun 5 · 8 min readBuilding a Serverless Employee Management App on AWS: Lambda, DynamoDB, API Gateway, and S3Here is the full stack: Amazon S3 hosts the static frontend Amazon API Gateway exposes the HTTP endpoints AWS Lambda runs the Python compute functions Amazon DynamoDB stores the employee records 00
MBMarika Bergmaninblog.marikabergman.com·Jun 3 · 8 min readPersonalising LLM Output with DynamoDB and Deterministic Filters When I started building an application that extracts key concepts and vocabulary from a text, I thought I could handle personalisation through the prompt alone. It turned out that getting reliable res30
CSCamma Smithindynamosql.hashnode.dev·Jun 3 · 7 min readWhy LLM Agents Still Can't Query NoSQL Databases When it comes to SQL databases, LLMs are great at writing SQL. It's precise, expressive, and unambiguous. LLMs write it well. Connect an MCP server to Postgres and the agent can write queries directly10
CSCamma Smithindynamosql.hashnode.dev·Jun 2 · 9 min readWhy We Built an SQL Layer on Top of DynamoDBThe SQL vs. NoSQL debate has been running long enough that most engineers have stopped having it. The real question isn't which is better. It's which tradeoffs you're actually making when you choose o00
BHBrecht Huanginthebrecht.hashnode.dev·Jun 1 · 9 min readFive days before launch I tore out Resend and rebuilt magic-link auth on AWS SES + LambdaI run toui.io, a URL shortener I shipped to the public on April 7, 2026. Eleven days before launch I had passwordless email login working on Resend. Five days before launch I tore it out and rebuilt t00
SCSammed Chouguleinaws-saa-journey.hashnode.dev·May 30 · 17 min readChoosing the Right AWS Database: RDS, Aurora, DynamoDB, and RedshiftPicture this. It is 11 PM on a Friday. A product launch went better than expected, traffic is three times the normal level, and the on-call engineer is staring at a single PostgreSQL instance running 00
SPSAI PRANEETH BHATTUinsaipraneethbhattu.hashnode.dev·May 29 · 13 min readAWS DynamoDB Deep Dive: NoSQL Fundamentals, Capacity Math, and Everything In BetweenWhy NoSQL Exists: The Problem With Rigid Structure Imagine someone hands you a blank Excel sheet and says "create the columns." Your first question is going to be, "columns for what?" You cannot desig00
SGSaran Ginsaranbuilds.hashnode.dev·May 20 · 6 min readNotifyMesh - The Template Service and Kafka DesignIf you have not read the previous parts yet, I would recommend starting there - this post builds directly on top of them. Part 1 laid the foundation - the high level design, the four deployable units,00
