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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

🛑 Stop Sprinkling sync.Map Everywhere

🛑 Stop Sprinkling sync.Map Everywhere

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📊 pprof in 2025: Facts > Gut Feelings

📊 pprof in 2025: Facts > Gut Feelings

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🔍 When top Lies and Logs Stay Quiet: Use Sysdig

🔍 When top Lies and Logs Stay Quiet: Use Sysdig

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🙈 Fifteen if err != nil in a Row? Cut the Noise.

🙈 Fifteen if err != nil in a Row? Cut the Noise.

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🧩 Forty Arguments? Meet Functional Options in Go (2025)

🧩 Forty Arguments? Meet Functional Options in Go (2025)

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⚡ Go + Memory Pools: Dodging GC Pauses in 2025

⚡ Go + Memory Pools: Dodging GC Pauses in 2025

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⚡ Next.js + Go: The 2025 Dream Stack

⚡ Next.js + Go: The 2025 Dream Stack

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💤 Every Skipped Test = One More 2 a.m. Debugging

💤 Every Skipped Test = One More 2 a.m. Debugging

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🧩 Two DI Examples in Go That Click in 2025

🧩 Two DI Examples in Go That Click in 2025

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🚦 Rate Limiting in 2025: One Atomic “Reserve” Instead of Chaos

🚦 Rate Limiting in 2025: One Atomic “Reserve” Instead of Chaos

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🚀 From Java to Go in 2025: 6 Steps for a Smooth Start

🚀 From Java to Go in 2025: 6 Steps for a Smooth Start

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HTTPS at 80 Gbps? Yes, in Go (2025)

HTTPS at 80 Gbps? Yes, in Go (2025)

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🌀 JSON v2 in Go (2025): What Actually Changed

🌀 JSON v2 in Go (2025): What Actually Changed

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⚡ Go Arenas: Request‑Scoped Speed in 2025

⚡ Go Arenas: Request‑Scoped Speed in 2025

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🍰 Go Slices Finally Explained: Why They Behave the Way They Do

🍰 Go Slices Finally Explained: Why They Behave the Way They Do

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🚀 RAG in Go: From Zero to Answers in One Evening

🚀 RAG in Go: From Zero to Answers in One Evening

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Still Fighting With React Hook Tests?

Still Fighting With React Hook Tests?

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Angular in 2025: Still Struggling With Data Flow?

Angular in 2025: Still Struggling With Data Flow?

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🚀 Stop Panicking at `top`: Read It Like a Pro in 2025

🚀 Stop Panicking at `top`: Read It Like a Pro in 2025

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⚡ Save RAM in 2025 with Bloom Filters — The Tiny Data Structure with Massive Impact ⚡

⚡ Save RAM in 2025 with Bloom Filters — The Tiny Data Structure with Massive Impact ⚡

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⏳ Go `defer` — Master It in 5 Minutes ⚡

⏳ Go `defer` — Master It in 5 Minutes ⚡

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🛠 Type‑Safe DSLs in Go — No Magic, Just Go ⚡

🛠 Type‑Safe DSLs in Go — No Magic, Just Go ⚡

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🚀 CPS in Go: Unlock Go’s Superpowers in 2025 ⚙️

🚀 CPS in Go: Unlock Go’s Superpowers in 2025 ⚙️

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🔍 Go Reflection: Less Code, More Power ⚡

🔍 Go Reflection: Less Code, More Power ⚡

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🧠 I Don’t Grind for Algorithm Interviews — And I Still Pass 🚀

🧠 I Don’t Grind for Algorithm Interviews — And I Still Pass 🚀

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🔐 Secure Your Frontend in 2025 — Pass Certification Fast 🔐

🔐 Secure Your Frontend in 2025 — Pass Certification Fast 🔐

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🖱 Click or Hold? This CSS Trick Gives You Two Actions in One Button ⚡

🖱 Click or Hold? This CSS Trick Gives You Two Actions in One Button ⚡

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⚡ Lightweight Containers for Raspberry Pi in 2025 — Cut Megabytes, Boost Speed ⚡

⚡ Lightweight Containers for Raspberry Pi in 2025 — Cut Megabytes, Boost Speed ⚡

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🔍 End-to-End Observability 2025 — Trace Every Millisecond, Fix Issues Fast! 🔍

🔍 End-to-End Observability 2025 — Trace Every Millisecond, Fix Issues Fast! 🔍

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🚀 Airflow in 2025 Will Change How You Run Data Pipelines 🚀

🚀 Airflow in 2025 Will Change How You Run Data Pipelines 🚀

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📊 Smart Data 2025 — Big Data Is Dead, Here’s What’s Next 🚀

📊 Smart Data 2025 — Big Data Is Dead, Here’s What’s Next 🚀

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🤖 GPT‑5 in 2025 — Not Just an Upgrade, a Game‑Changer ⚡

🤖 GPT‑5 in 2025 — Not Just an Upgrade, a Game‑Changer ⚡

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🎯 Front-End Pain Points 2025 — Surviving Between Mockups & Deadlines 🎯

🎯 Front-End Pain Points 2025 — Surviving Between Mockups & Deadlines 🎯

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⚡ Redis in 2025 — Pushing Speed to the Limit ⚡

⚡ Redis in 2025 — Pushing Speed to the Limit ⚡

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🛰️ Sidecars in Go: Clean Code, Zero Bloat

🛰️ Sidecars in Go: Clean Code, Zero Bloat

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🔁 Elegant Iterator Chains in Go — Finally Here

🔁 Elegant Iterator Chains in Go — Finally Here

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⚙️ Coroutines vs Threads in 2025: What You Really Need to Know

⚙️ Coroutines vs Threads in 2025: What You Really Need to Know

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📦 Mastering Node.js Streams in 2025

📦 Mastering Node.js Streams in 2025

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🛑 Perfectionism Slowed Me Down — Here’s What I Learned

🛑 Perfectionism Slowed Me Down — Here’s What I Learned

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🔐 Safe String Keys in TypeScript — No More Silent Failures

🔐 Safe String Keys in TypeScript — No More Silent Failures

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🚀 Scaling With Go in 2025: Concurrency That Works

🚀 Scaling With Go in 2025: Concurrency That Works

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Secret bytes 2025: hide anything inside a PNG!

Secret bytes 2025: hide anything inside a PNG!

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🧩 Modular front-ends in 2025: break the monolith!

🧩 Modular front-ends in 2025: break the monolith!

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🚀 Boost Your Front-End Performance in 2025! 🚀

🚀 Boost Your Front-End Performance in 2025! 🚀

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🧪 Go testing beyond coverage in 2025

🧪 Go testing beyond coverage in 2025

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⚡ Next.js in 2025 — practical tips, zero fluff

⚡ Next.js in 2025 — practical tips, zero fluff

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⚡ Boost your Core Web Vitals in 2025 — without rewriting your site

⚡ Boost your Core Web Vitals in 2025 — without rewriting your site

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⚛️ From 300 lines of jQuery to 40 lines of readable JSX

⚛️ From 300 lines of jQuery to 40 lines of readable JSX

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🔗 Fan‑in: merge goroutine channels into a single, predictable stream

🔗 Fan‑in: merge goroutine channels into a single, predictable stream

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🧩 Build a scalable micro‑kernel in Go — hot‑swap modules without downtime

🧩 Build a scalable micro‑kernel in Go — hot‑swap modules without downtime

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🔄 Redux‑style state management in Go — yes, even for a counter

🔄 Redux‑style state management in Go — yes, even for a counter

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🚀 Build a REST API in Go from scratch — the 2025 way

🚀 Build a REST API in Go from scratch — the 2025 way

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🎨 Readable front‑ends don’t happen by accident

🎨 Readable front‑ends don’t happen by accident

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🕵️ JavaScript powers the modern web — and tracks you in ways you don’t expect

🕵️ JavaScript powers the modern web — and tracks you in ways you don’t expect

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⚡ Binary Search isn’t just for sorted arrays in 2025

⚡ Binary Search isn’t just for sorted arrays in 2025

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📊 Prometheus Monitoring 2025 — Essentials Made Simple

📊 Prometheus Monitoring 2025 — Essentials Made Simple

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🔐 CI/CD Security in 2025: Stop shipping vulnerabilities at bullet‑train speed

🔐 CI/CD Security in 2025: Stop shipping vulnerabilities at bullet‑train speed

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🐳 TOP‑5 Docker Compose features that save hours in 2025

🐳 TOP‑5 Docker Compose features that save hours in 2025

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🧠 Stop hoarding memory leaks in your JS apps

🧠 Stop hoarding memory leaks in your JS apps

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🧠 Stop hoarding memory in your JS apps.

🧠 Stop hoarding memory in your JS apps.

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