Tag: #backend
Writing on GPUs, LLMs, MLOps, Kubernetes — and mindset · 32 posts
Database Complete Comparison 2025: PostgreSQL vs MySQL vs MongoDB vs Redis — Selection Guide
Everything about database selection in 2025! PostgreSQL (JSONB+pgvector), MySQL (HeatWave ML), MongoDB (Atlas Vector Search), Redis (Stack/Search) — architecture, performance benchmarks, cost comparison, use-case selecti
2026-03-23 · 29 min read #database#postgresql#mysql#mongodb#redisFunctional Programming Practical Guide: Immutability, Pure Functions, and Monads for Backend Developers
Everything about FP! Immutability, pure functions, higher-order functions, closures, currying, monads, functors — learn core FP concepts with TypeScript/Python/Scala code and practical backend patterns (error handling, p
2026-03-23 · 32 min read #functional-programming#immutability#pure-function#monad#higher-orderRedis Complete Guide 2025: Caching Strategies, Data Structures, Pub/Sub, and Redis Stack
Everything about Redis! 5 data structures, caching patterns (Cache-Aside/Write-Through/Write-Behind), Pub/Sub, Redis Streams, Redis Stack (JSON/Search/TimeSeries), Lua scripting, Cluster architecture, and interview quest
2026-03-23 · 19 min read #redis#caching#data-structures#pubsub#redis-stackGo Language Complete Guide 2025: From Goroutines, Channels, Interfaces to Production Patterns
Everything about Go! Goroutine/channel concurrency, interfaces and duck typing, error handling patterns, generics (1.18+), structs and methods, testing, profiling, gRPC/REST servers, CLI tools, and optimized Docker build
2026-03-23 · 23 min read #go#golang#goroutine#channel#interfaceDistributed Systems Fundamentals: From CAP Theorem to Consensus Algorithms and Consistency Models
Everything about distributed systems! CAP/PACELC theorem, consensus algorithms (Raft/Paxos), consistency models (Strong/Eventual/Causal), replication (Leader-Follower/Multi-Leader/Leaderless), partitioning, distributed t
2026-03-23 · 21 min read #distributed-systems#cap-theorem#consensus#raft#paxosConcurrency & Parallelism Deep Dive: Multithreading, Async, and Event Loops Explained
From the fundamental difference between concurrency and parallelism! Threads vs coroutines vs virtual threads, event loop (Node.js), Actor model (Erlang/Akka), lock-free data structures, language-by-language concurrency
2026-03-23 · 21 min read #concurrency#parallelism#multithreading#async#event-loopClean Architecture Complete Guide: From SOLID to Hexagonal, DDD, and Layered — Design Principles for Senior Engineers
A comprehensive comparison of Uncle Bob's Clean Architecture, SOLID principles, Hexagonal (Ports & Adapters), DDD, and Layered Architecture with real-world code examples. The complete software design principles guide for
2026-03-22 · 33 min read #clean-architecture#solid#hexagonal#domain-driven-design#design-patternsMessage Queue Showdown: Kafka vs RabbitMQ vs SQS vs Pulsar vs NATS — 2025 Decision Guide
Kafka 4.0 KRaft GA, RabbitMQ 4.2 stream filtering, Pulsar 4.1, NATS 2.11 — a complete comparison of 6 message queue systems in 2025. Architecture, benchmarks (Kafka 1M msgs/s vs RabbitMQ 50K), pricing, and Spring Boot in
2026-03-22 · 23 min read #kafka#rabbitmq#sqs#pulsar#natsAsync Processing Patterns Mastery: CQRS, Saga, Event Sourcing — Senior Backend Developer Essential Guide
Netflix processes 260M users, Uber handles petabytes of real-time data — all asynchronously. CQRS, Saga (Choreography vs Orchestration), Event Sourcing, Outbox, Idempotency, DLQ — the complete async patterns guide every
2026-03-22 · 28 min read #async#cqrs#saga-pattern#event-sourcing#event-drivenThe Definitive 2025 Developer Study Guide: Tech Stack Roadmaps, Free Resources, and Interview Prep for Every Position
A comprehensive, data-driven study guide covering every tech stack in modern JDs — from algorithms and system design to AI/ML, DevOps, and data engineering. Includes curated free/paid resources, certification prep, and p
2026-03-21 · 38 min read #study-guide#career#learning-resources#coding-test#system-designToss Bank ML Backend Engineer Study Guide: Server Architecture, ML Serving, and Career Roadmap
Complete analysis of Toss Bank ML Service Team JD. Server architecture design, large-scale traffic handling, AI model serving on K8s, MSA distributed tracing — with a 6-month study roadmap and interview preparation.
2026-03-21 · 34 min read #ml-engineering#backend#tossbank#kubernetes#pythonGo Language Complete Syntax Guide: From Basics to Concurrency and Generics
A comprehensive guide covering all core Go language concepts from basic syntax to goroutines, channels, and generics, with practical code examples throughout.
2026-03-17 · 22 min read #go#golang#syntax#programming#backend