@tbansal

Tarun Bansal

@tbansalDublin, IrelandJoined August 2026

Senior Java engineer and technical lead writing about reliable distributed systems, cloud architecture and investment platforms.

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Tarun Bansal's blogs

Systems in Practicediscere.tech6 posts

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Recently published

TBTarun Bansaldiscere.tech4h ago · 15 min read

System Design Interview Guide: A 5-Step Roadmap

System design interviews are not primarily tests of how many technologies you can name. They test whether you can turn unclear requirements into a sensible architecture, explain your decisions and rec

TBTarun Bansaldiscere.tech4h ago · 5 min read

Concurrency

Thread Lifecycle NEW → RUNNABLE → BLOCKED/WAITING/TIMED_WAITING → TERMINATED BLOCKED: waiting to acquire a monitor lock WAITING: Object.wait(), Thread.join() with no timeout — needs explicit notify

TBTarun Bansaldiscere.tech4h ago · 2 min read

Java Garbage Collection Cheat Sheet

A practical reference covering GC collector trade-offs, G1's region-based layout, low-pause collectors (ZGC/Shenandoah), and how to diagnose GC behavior in production. Collector Trade-offs Trade-off

TBTarun Bansaldiscere.tech4h ago · 4 min read

Java Memory Model & Concurrency Cheat Sheet

A practical reference covering JVM memory internals and Java concurrency — heap structure, the Java Memory Model, thread lifecycle, synchronization primitives, executors, CompletableFuture, and the co

TBTarun Bansaldiscere.tech5h ago · 10 min read

Kafka Core Concepts: From Consumer Groups to High Throughput

A practical guide to consumer groups, offsets, Schema Registry, producer internals and the design choices that make Kafka fast. Kafka Core Concepts: From Consumer Groups to High Throughput Kafka is o

Tarun Bansal

About

Available for

Tarun Bansal's blogs

Recently published

System Design Interview Guide: A 5-Step Roadmap

Concurrency

Java Garbage Collection Cheat Sheet

Java Memory Model & Concurrency Cheat Sheet

Kafka Core Concepts: From Consumer Groups to High Throughput

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Tarun Bansal

About

Available for

Tarun Bansal's blogs

Recently published

System Design Interview Guide: A 5-Step Roadmap

Concurrency

Java Garbage Collection Cheat Sheet

Java Memory Model & Concurrency Cheat Sheet

Kafka Core Concepts: From Consumer Groups to High Throughput