Blog
Practical articles, guides, and reflections on backend engineering, distributed systems, databases, career growth, and building products.
More than 1,200 years ago, Muhammad ibn Musa al-Khwarizmi developed systematic methods for calculation and algebra. Learn how his name became algorithm, how al-jabr became algebra, and why his work still shapes software and computer science.
We’re taught to chase big titles, fame, and fortune as the ultimate signs of success. But what if real success is quieter, deeper, and far more personal? A reflection on growth, struggle, and why the journey matters more than the headlines.
ClickHouse is a high-performance columnar OLAP database built for real-time analytics at scale. Learn its core concepts, schema design rules, table engines, and example queries in this practical guide.
The October 2025 AWS US-EAST-1 DNS outage disrupted several major services. Learn how multi-AZ deployments, redundancy, and multi-cloud strategies can help businesses survive regional cloud failures.
Weaviate is a vector database built for semantic search, recommendations, and RAG pipelines. Learn its core concepts, schema design, queries, replication, and real-world use cases in this hands-on guide.
Scrape jobs, enrich with AI tags, match candidates with vector search, and gain insights with analytics.
Apache Kafka is a distributed streaming platform built for scalability, fault tolerance, and high throughput. Learn its core concepts, topics, partitions, consumer groups, serialization formats, and stream processing features in this hands-on guide.
Apache Cassandra is a distributed, leaderless database built for scalability and fault tolerance. Learn its core concepts, schema design rules, data types, and example queries in this practical guide.
Turn every surface and post into a shoppable, attributed moment using dynamic QR flows—feature-by-feature with real use cases, examples, and KPIs.
Today I am going to write about blockchain. Especially on Ethereum Smart Contract. There are thousands of tutorials on the internet but I didn’t find one complete. Also, most of them are out-dated.
In modern software development, the ability to handle multiple tasks simultaneously is becoming increasingly important.
Streams API হচ্ছে Java 8 এ যুক্ত হওয়া নতুন কিছু ফিচার যা ব্যবহার করে আমরা খুব সহজেই complex computational কাজ করতে পারি ।
Turn database changes into real-time streams with CDC, sane schemas, and production-grade operations.