Technical essays, architectural deep-dives, and practical guides at the intersection of code and design.
Page 2 of 27
Build a real cloud security scanner from scratch using Python and AWS APIs. Scan for open security groups, public S3 buckets, unencrypted volumes, overly permissive IAM policies, and generate a security report.
How to build security observability in AWS using CloudTrail, CloudWatch, and Athena. Covers audit logging, anomaly detection, SIEM integration, and building custom security dashboards.
Deep dive into AWS IAM security best practices. Covers permission boundaries, SCPs, assume role chains, session policies, and how to audit IAM for least-privilege access in production environments.
Build real-time applications with WebSockets and Socket.io in Node.js — rooms, namespaces, scaling with Redis adapter, and handling reconnection
Comprehensive testing strategies for Node.js applications with Jest, Supertest, and Testcontainers — from unit tests to end-to-end API testing
Use Redis with Node.js for caching, session storage, pub/sub messaging, rate limiting, and distributed locks using ioredis
Connect Node.js to PostgreSQL using pg, Knex.js, and Prisma ORM. Learn connection pooling, migrations, transactions, and query optimization
Profile and optimize Node.js applications — find memory leaks, reduce event loop lag, use worker threads, cluster mode, and caching strategies
Understand the Node.js event loop, its phases, microtasks vs macrotasks, and how non-blocking I/O actually works under the hood with libuv
Master MongoDB with Mongoose in Node.js — schema design, indexing strategies, population, aggregation pipelines, and common anti-patterns to avoid
Implement reliable message queuing in Node.js with RabbitMQ (amqplib) and AWS SQS. Learn exchange types, dead letter queues, retry patterns, and guaranteed delivery
Handle file uploads in Node.js with Multer, stream large files to AWS S3, generate presigned URLs, and implement multipart uploads for large files