Software Design and Architecture Resources

The Hidden Cost of Custom Logic: A Performance Showdown in Apache Spark

A deep dive into PySpark UDF performance, showing why standard Python UDFs slow pipelines and when to use Pandas UDFs or native Spark functions instead.

February 26, 2026

by Abhilash Rao Mesala

· 1,661 Views

Terraform AWS Provider Explained Like You’re Five (With Real Code)

Terraform is an Infrastructure as Code tool that allows teams to define AWS infrastructure using declarative configuration files instead of manual console clicks.

February 26, 2026

by Ankush Madaan

· 1,432 Views

Zero-Trust Cross-Cloud: Calling AWS From GCP Without Static Keys Using MultiCloudJ

This guide demonstrates exchanging Google ID tokens for temporary AWS STS credentials to enable secure, zero-trust communication between clouds using MultiCloudJ.

February 26, 2026

by Sandeep Pal

· 1,356 Views · 3 Likes

OAuth Gone Wrong: The Hidden Token Issue That Brought Down Our Login System

A reused expired refresh token caused widespread login failures in our Node.js app. This article shows how it happened, how we fixed it, and how to avoid it.

February 26, 2026

by Bhanu Sekhar Guttikonda

CORE

· 1,032 Views · 1 Like

A Unified Framework for SRE to Troubleshoot Database Connectivity in Kubernetes Cloud Applications

Troubleshoot Kubernetes database connectivity using a layered diagnostic framework and achieve rapid root-cause identification and production stability.

February 25, 2026

by Prakash Velusamy

· 3,075 Views

How We Cut AI API Costs by 70% Without Sacrificing Quality: A Technical Deep-Dive

Intelligent caching and model routing reduced our AI API costs from $12,340 to $3,680 per month. Production-tested optimizer. Open source. MIT license.

February 25, 2026

by Dinesh Elumalai

CORE

· 1,530 Views · 1 Like

Cutting P99 Latency From ~3.2s To ~650ms in a Policy‑Driven Authorization API (Python + MongoDB)

We cut tail latency by making queries index-friendly, removing cold-start connection costs, and overlapping third‑party I/O with computation.

February 25, 2026

by Rohit Muthyala

· 1,084 Views

Cagent: Dockers newest low code Agentic Platform

Docker’s cagent is a new open-source, low-code/ YAML-centric AI agent builder and runtime. Instead of writing code, you describe agents and cagent runs them.

February 25, 2026

by Siri Varma Vegiraju

CORE

· 1,694 Views

Edge Computing's Infrastructure Problem: What Two Years of Factory Visits Actually Revealed

Most edge computing remains cloud-dependent, with genuine use cases limited to strict latency or connectivity needs — making it more marketing than architecture.

February 25, 2026

by Igboanugo David Ugochukwu

CORE

· 1,502 Views · 2 Likes

How to Integrate an AI Chatbot Into Your Application: A Practical Engineering Guide

A practical engineering guide to integrating an AI chatbot into your application, covering architecture, backend flow, NLP handling, security, testing, and deployment.

February 24, 2026

by Manthan Bhavsar

· 1,443 Views