Engineering Journal
Engineering Blog
Concept-first explanations for new readers, followed by implementation, testing, delivery, and operational evidence for working engineers.
Featured case study
Safely Migrating a Next.js Development Environment from Windows to macOS
A practical recovery workflow for moving a Next.js project to Apple Silicon macOS while preserving Git history, private local files, and build reproducibility.
2026-08-16 · 5 min
Security & Technology Intelligence
Suspected North Korea-Linked npm Malware Disguised as Rollup Polyfills
Six malicious npm packages imitated Rollup polyfills to target credentials on developer workstations and CI systems. Here is how teams should respond.
2026-07-05 · 5 min
Security & Technology Intelligence
North Korea-Linked PolinRider Campaign Expands Beyond npm to Go and Chrome
The North Korea-linked PolinRider campaign expanded across npm, Go, Packagist, Chrome extensions, GitHub repositories, and developer tools.
2026-07-05 · 5 min
Cloud & Platform Engineering
Static Hosting with S3, CloudFront, and Terraform
A small infrastructure project that provisions static hosting with S3, CloudFront, Route 53, and Terraform.
2026-07-04 · 7 min
Data & AI Systems
Daily Compass: Designing a Serverless Azure Data Pipeline
A record of designing Daily Compass with Azure Static Web Apps, Functions, Cosmos DB, Private Endpoint, and Application Insights.
2026-07-04 · 6 min
Cloud & Platform Engineering
Cloud Network Addressing and Routing Foundations
A network fundamentals note covering CIDR, subnetting, gateways, routing, DNS, TLS, and cloud network boundaries.
2026-01-01 · 10 min
Cloud & Platform Engineering
Azure CLI, PowerShell, and SQL Server Operations Automation Flow
A practical operations note connecting Azure CLI, PowerShell, VM provisioning, SQL Server setup, and repeatable infrastructure tasks.
2025-12-31 · 9 min
Data & AI Systems
Connecting AI/LLM Workflows with Cloud Platforms
A platform-oriented note on connecting LLM workflows, retrieval, task automation, backend APIs, data stores, and observability.
2025-12-31 · 8 min
Backend & Distributed Systems
Web Frontend Foundations from a Backend Collaboration Perspective
A backend-oriented review of frontend fundamentals, HTTP request flow, React state, routing, API calls, and team collaboration boundaries.
2025-12-30 · 13 min
Backend & Distributed Systems
Backend API and Data System Design Foundations
A backend design note covering API boundaries, data ownership, validation, transactions, caching, and operational observability.
2025-12-29 · 10 min
Cloud & Platform Engineering
Linux Network Security Fundamentals for Cloud Operations
A Linux and networking foundation note that connects shell commands, permissions, processes, ports, firewalls, DNS, and cloud operations.
2025-12-28 · 10 min
Cloud & Platform Engineering
Kubernetes Application Delivery and GitOps Operations Model
A deployment record connecting Kubernetes workloads, Services, Helm, Operators, Argo CD, GitOps, and operational boundaries.
2025-12-27 · 14 min
Cloud & Platform Engineering
Docker-Based Local Development and Database Container Operations
A practical review of Docker images, containers, volumes, networks, Docker Hub, and local PostgreSQL/MySQL development environments.
2025-12-26 · 9 min
Cloud & Platform Engineering
Azure Secure Networking and Highly Available Web Application Design
A cloud operations note on Azure VNet, NSG, Bastion, VMSS, Traffic Manager, Load Balancer, and secure high-availability design.
2025-12-25 · 14 min
Cloud & Platform Engineering
AWS Web Service Infrastructure and Operations Model
A connected view of Route 53, IAM, EC2, S3, CloudFront, ELB, Auto Scaling, and CloudWatch as a web service request flow.
2025-12-24 · 12 min
Data & AI Systems
Designing a Python Data Collection and Automation Pipeline
A practical design note that connects Python syntax, virtual environments, Pandas processing, web crawling, and Open API calls into an automation pipeline.
2025-12-24 · 8 min
Backend & Distributed Systems
Backend Data Layer Design and SQL/NoSQL Operations
A backend-focused review of relational modeling, SQL, NoSQL choices, transactions, indexing, and operational data boundaries.
2025-12-23 · 17 min
Cloud & Platform Engineering
Azure Web Application Deployment and Storage Integration Flow
A deployment-oriented walkthrough of Azure Web Apps, backend APIs, storage integration, images, environment variables, and operations checks.
2025-12-22 · 10 min
Backend & Distributed Systems
Spring Boot Backend Application Structure and Data Access Flow
Notes on Spring Boot application structure, controller-service-repository boundaries, dependency injection, and data access flow.
2025-12-21 · 11 min
Cloud & Platform Engineering
Web Application Security and Cloud Operations Guardrails
A practical review of web application attack surfaces, container boundaries, cloud storage controls, and operational security guardrails.
2025-11-18 · 13 min