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Aleksei Aleinikov

My interests range from building complex algorithms and designing high-performance systems to applying AI to solve real-world challenges.

Location Thessaloniki, Greece Joined Joined on  Personal website https://www.alekseialeinikov.com

Work

DevSecOps

🧪 Cypress in 2025
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🧪 Cypress in 2025

#webdev #testing #cypress #javascript
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⚡Fast Sites in 2025 — No Framework Required
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⚡Fast Sites in 2025 — No Framework Required

#javascript #webdev #programming #frontend
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1 min read
🔐 Strong types, stronger vibes.
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🔐 Strong types, stronger vibes.

#javascript #typescript #webdev #programming
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1 min read
🚀 Scaling Without Managed Services
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🚀 Scaling Without Managed Services

#devplusplus #devops #kubernetes #programming
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Ansible in 2025
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Ansible in 2025

#ansible #devops #automation #webdev
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1 min read
🐧 Starting a Linux Career in 2025
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🐧 Starting a Linux Career in 2025

#linux #devops #programming #webdev
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📌 Kafka Auth in 2025
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📌 Kafka Auth in 2025

#kafka #eventdriven #bigdata #devops
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🛑 Why “Sugar” Fails in Go
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🛑 Why “Sugar” Fails in Go

#go #softwaredevelopment #webdev #programming
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1 min read
🐹 Go Methods in 2025
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🐹 Go Methods in 2025

#go #webdev #programming #backend
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⚡ Reflection Without Fear
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⚡ Reflection Without Fear

#go #webdev #programming #ai
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1 min read
When Types Hurt More Than They Help
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When Types Hurt More Than They Help

#javascript #typescript #webdev #frontend
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3 Secrets of the JS Runtime (2025)
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3 Secrets of the JS Runtime (2025)

#frontend #frontendchallenge #webdev #javascript
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🌍 Sidebar menu: Open Source in 2025
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🌍 Sidebar menu: Open Source in 2025

#opensource #career #linux #google
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📊 Sidebar menu: Prometheus Alerts That Matter
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📊 Sidebar menu: Prometheus Alerts That Matter

#prometheus #programming #devops #monitoring
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🔐 Sidebar menu: Secrets & Docker in 2025
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🔐 Sidebar menu: Secrets & Docker in 2025

#devops #docker #webdev #programming
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🤯 Sidebar menu: Tricky JS Questions Demystified
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🤯 Sidebar menu: Tricky JS Questions Demystified

#javascript #frontend #webdev #programming
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1 min read
🗑️ Sidebar menu: Kill Dead Code Before It Kills You
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🗑️ Sidebar menu: Kill Dead Code Before It Kills You

#node #javascript #frontend #webdev
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💡 Deadlines don’t wait.
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💡 Deadlines don’t wait.

#git #coding #devops #softwareengineering
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How Node.js Event Loop Really Handles I/O in 2025
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How Node.js Event Loop Really Handles I/O in 2025

#node #javascript #backend #programming
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1 min read
Argo CD + Vault in 2025: Stop Secrets from Breaking in Templates
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Argo CD + Vault in 2025: Stop Secrets from Breaking in Templates

#devops #argocd #kubernetes #helm
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1 min read
Why Your UI Tests Still Break in 2025 (and How Test IDs Fix Everything)
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Why Your UI Tests Still Break in 2025 (and How Test IDs Fix Everything)

#webdev #testing #programming #frontend
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1 min read
Kubernetes Claims in 2025: Stop Bleeding Resources 💸
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Kubernetes Claims in 2025: Stop Bleeding Resources 💸

#devops #webdev #programming #kubernetes
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Why mTLS in 2025 Is Just Hygiene (Not a Luxury) 🔐
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Why mTLS in 2025 Is Just Hygiene (Not a Luxury) 🔐

#devops #mtls #cloud #webdev
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1 min read
Angular + SSR in 2025: Faster First Paint, Fewer Flickers 🚀
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Angular + SSR in 2025: Faster First Paint, Fewer Flickers 🚀

#angular #javascript #webdev #frontend
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1 min read
One Tool to Lint and Format: Why I Dropped Prettier in 2025 🛠️
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One Tool to Lint and Format: Why I Dropped Prettier in 2025 🛠️

#javascript #eslint #webdev #programming
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1 min read
How One await Cut My Response Time in Half ⚡
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How One await Cut My Response Time in Half ⚡

#node #javascript #backend #programming
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Concurrency in Go: 5 Patterns You’ll Actually Use in 2025 ⚡
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Concurrency in Go: 5 Patterns You’ll Actually Use in 2025 ⚡

#go #backend #webdev #programming
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1 min read
One-Click Rollouts with Ansible in 2025: Inventory as a Contract ⚡
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One-Click Rollouts with Ansible in 2025: Inventory as a Contract ⚡

#ansible #devops #automation #cloud
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1 min read
FSD Architecture: The Truth Every Team Learns in 2025 🧩
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FSD Architecture: The Truth Every Team Learns in 2025 🧩

#javascript #frontend #webdev #programming
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Your App Isn’t Slow Because of React — It’s the 500 Extra Renders 🐢
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Your App Isn’t Slow Because of React — It’s the 500 Extra Renders 🐢

#react #javascript #webdev #frontend
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Camunda Without Java: Why It’s a Game-Changer in 2025 ⚙️
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Camunda Without Java: Why It’s a Game-Changer in 2025 ⚙️

#camunda #bpmn #devops #microservices
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1 min read
Why I Never Trust 200 Alone: Smarter API Testing in 2025 🚦
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Why I Never Trust 200 Alone: Smarter API Testing in 2025 🚦

#api #javascript #devops #webdev
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JavaScript Coercion Demystified: Stop the “Weird Bugs” in 2025 🪄
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JavaScript Coercion Demystified: Stop the “Weird Bugs” in 2025 🪄

#javascript #webdev #programming #beginners
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Reliable on Paper, Fragile in Reality: 3 Tricks Teams Use in 2025 ⚡
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Reliable on Paper, Fragile in Reality: 3 Tricks Teams Use in 2025 ⚡

#devops #monitoring #sre #webdev
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1 min read
Go’s net/http Demystified: Simple, No Magic ✨
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Go’s net/http Demystified: Simple, No Magic ✨

#go #api #backend #programming
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Stop Flaky Go Tests in 2025: Meet synctest 🚀
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Stop Flaky Go Tests in 2025: Meet synctest 🚀

#go #testing #webdev #programming
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1 min read
🛑 Stop Sprinkling sync.Map Everywhere
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🛑 Stop Sprinkling sync.Map Everywhere

#go #webdev #programming #ai
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📊 pprof in 2025: Facts > Gut Feelings
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📊 pprof in 2025: Facts > Gut Feelings

#architecture #webdev #devplusplus #programming
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🔍 When top Lies and Logs Stay Quiet: Use Sysdig
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🔍 When top Lies and Logs Stay Quiet: Use Sysdig

#linux #devplusplus #devops #programming
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🙈 Fifteen if err != nil in a Row? Cut the Noise.
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🙈 Fifteen if err != nil in a Row? Cut the Noise.

#go #webdev #programming #architecture
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🧩 Forty Arguments? Meet Functional Options in Go (2025)
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🧩 Forty Arguments? Meet Functional Options in Go (2025)

#devops #webdev #programming #go
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⚡ Go + Memory Pools: Dodging GC Pauses in 2025
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⚡ Go + Memory Pools: Dodging GC Pauses in 2025

#go #webdev #programming #design
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⚡ Next.js + Go: The 2025 Dream Stack
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⚡ Next.js + Go: The 2025 Dream Stack

#nextjs #go #frontend #webdev
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💤 Every Skipped Test = One More 2 a.m. Debugging
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💤 Every Skipped Test = One More 2 a.m. Debugging

#testing #go #unittest #debugging
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🧩 Two DI Examples in Go That Click in 2025
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🧩 Two DI Examples in Go That Click in 2025

#go #webdev #programming #development
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1 min read
🚦 Rate Limiting in 2025: One Atomic “Reserve” Instead of Chaos
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🚦 Rate Limiting in 2025: One Atomic “Reserve” Instead of Chaos

#webdev #programming #api #architecture
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1 min read
🚀 From Java to Go in 2025: 6 Steps for a Smooth Start
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🚀 From Java to Go in 2025: 6 Steps for a Smooth Start

#java #go #programming #webdev
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HTTPS at 80 Gbps? Yes, in Go (2025)
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HTTPS at 80 Gbps? Yes, in Go (2025)

#go #webdev #programming
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🌀 JSON v2 in Go (2025): What Actually Changed
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🌀 JSON v2 in Go (2025): What Actually Changed

#go #webdev #programming
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1 min read
⚡ Go Arenas: Request‑Scoped Speed in 2025
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⚡ Go Arenas: Request‑Scoped Speed in 2025

#go #webdev #programming
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🍰 Go Slices Finally Explained: Why They Behave the Way They Do
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🍰 Go Slices Finally Explained: Why They Behave the Way They Do

#go #webdev #programming #ai
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🚀 RAG in Go: From Zero to Answers in One Evening
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🚀 RAG in Go: From Zero to Answers in One Evening

#ai #rag #machinelearning
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1 min read
Still Fighting With React Hook Tests?
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Still Fighting With React Hook Tests?

#webdev #react #programming #javascript
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Angular in 2025: Still Struggling With Data Flow?
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Angular in 2025: Still Struggling With Data Flow?

#angular #webdev #programming #javascript
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1 min read
🚀 Stop Panicking at `top`: Read It Like a Pro in 2025
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🚀 Stop Panicking at `top`: Read It Like a Pro in 2025

#linux #devplusplus #devops #automation
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⚡ Save RAM in 2025 with Bloom Filters — The Tiny Data Structure with Massive Impact ⚡
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⚡ Save RAM in 2025 with Bloom Filters — The Tiny Data Structure with Massive Impact ⚡

#webdev #programming #javascript #memory
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⏳ Go `defer` — Master It in 5 Minutes ⚡
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⏳ Go `defer` — Master It in 5 Minutes ⚡

#go #programming #webdev #defer
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1 min read
🛠 Type‑Safe DSLs in Go — No Magic, Just Go ⚡
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🛠 Type‑Safe DSLs in Go — No Magic, Just Go ⚡

#go #webdev #programming #softwaredevelopment
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1 min read
🚀 CPS in Go: Unlock Go’s Superpowers in 2025 ⚙️
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🚀 CPS in Go: Unlock Go’s Superpowers in 2025 ⚙️

#webdev #go #programming #career
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1 min read
🔍 Go Reflection: Less Code, More Power ⚡
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🔍 Go Reflection: Less Code, More Power ⚡

#go #backend #programming #automation
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