Pavel Sanikovich

Wielder of the Arcane Art of Go | Whisperer to High-Load Systems From the shadowed depths of distributed architectures, I conjure eldritch solutions with Go, MongoDB, ClickHouse, and Redpanda.

Joined on Oct 11, 2023 https://blog.devflex.pro/

Pavel Sanikovich

Dec 26 '25

Why context.Context Is Not a Cancel Button (And Why That Matters)

#go #beginners #programming #concurrency

4 min read

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Pavel Sanikovich

Dec 24 '25

Stop Using Go Channels as Queues — Here’s the Correct Mental Model

#go #beginners #programming #concurrency

5 min read

Pavel Sanikovich

Dec 20 '25

What the Goroutine Scheduler Really Does (And Why It Matters)

#go #beginners #programming #concurrency

5 min read

Pavel Sanikovich

Dec 16 '25

Concurrency in Go Is Easy — Until You Get It Wrong

#go #beginners #programming #concurrency

5 min read

Pavel Sanikovich

Dec 14 '25

Pointers in Go Are Simple — Until You Misunderstand What They Actually Point To

#go #beginners #programming #tutorial

4 min read

Pavel Sanikovich

Dec 12 '25

Stack vs Heap in Go: How Escape Analysis Actually Works

#go #beginners #programming #tutorial

5 min read

Pavel Sanikovich

Dec 10 '25

Go Memory Model Explained Simply (But Correctly)

#go #beginners #programming #tutorial

4 min read

Pavel Sanikovich

Dec 10 '25

Go Under the Hood: Memory, Concurrency, and Mental Models Most Developers Get Wrong

#go #beginners #programming #tutorial

2 min read

Cover image for How Vue Reactivity Actually Works Under the Hood (A Simple Explanation With Internals)

Pavel Sanikovich

Dec 1 '25

How Vue Reactivity Actually Works Under the Hood (A Simple Explanation With Internals)

#vue #webdev #typescript

4 min read

Cover image for Why Your Vue Code Becomes Messy (And How to Keep It Clean From the Start)

Pavel Sanikovich

Dec 1 '25

Why Your Vue Code Becomes Messy (And How to Keep It Clean From the Start)

#vue #frontend #typescript

4 min read

Cover image for Why Most Vue Apps Don’t Scale (And How Architecture Fixes It)

Pavel Sanikovich

Dec 1 '25

Why Most Vue Apps Don’t Scale (And How Architecture Fixes It)

#frontend #vue #webdev

5 min read

Cover image for Why I Quit Alcohol As a Tech Person (And What Changed)

Pavel Sanikovich

Nov 29 '25

Why I Quit Alcohol As a Tech Person (And What Changed)

#productivity #motivation #health #lifestyle

3 min read

Cover image for We Migrated From Kafka to Redpanda — What Actually Happened

Pavel Sanikovich

Nov 29 '25

We Migrated From Kafka to Redpanda — What Actually Happened

#kafka #distributedsystems #performance

4 min read

Cover image for Designing a High-Load Event Processing Pipeline — What Really Matters When Systems Start to Breathe

Pavel Sanikovich

Nov 24 '25

Designing a High-Load Event Processing Pipeline — What Really Matters When Systems Start to Breathe

#performance #distributedsystems #architecture #designsystem

6 min read

Pavel Sanikovich

Nov 23 '25

High-Performance Marshaling Strategies in Go — What Actually Works at Scale

#go #performance #bench #senior

5 min read

Cover image for How to Use Unsafe in Go Without Killing Your Service

Pavel Sanikovich

Nov 22 '25

How to Use Unsafe in Go Without Killing Your Service

#go #performance

5 min read

Cover image for The Hidden Cost of Reflection in Go — Why Your Code Is Slower Than You Think

Pavel Sanikovich

Nov 21 '25

The Hidden Cost of Reflection in Go — Why Your Code Is Slower Than You Think

#go #performance

5 min read

Cover image for Reducing Serialization Lag in Highload Go Systems — What Actually Works in Production

Pavel Sanikovich

Nov 20 '25

Reducing Serialization Lag in Highload Go Systems — What Actually Works in Production

#go #performance

4 min read

Cover image for JSON vs MessagePack vs Protobuf in Go — My Real Benchmarks and What They Mean in Production

Pavel Sanikovich

Nov 20 '25

JSON vs MessagePack vs Protobuf in Go — My Real Benchmarks and What They Mean in Production

#go #performance #bench #highload

4 min read

Cover image for How I Passed My First Senior Backend Interview (Go) Using Educative

Pavel Sanikovich

Nov 18 '25

How I Passed My First Senior Backend Interview (Go) Using Educative

#go #interview #softskills #career

4 min read

Cover image for Redpanda in Production: 3 Traps I Fell Into (and How to Avoid Them)

Pavel Sanikovich

Oct 22 '25

Redpanda in Production: 3 Traps I Fell Into (and How to Avoid Them)

#go #redpanda #kafka #performance

3 min read

Cover image for Copying by Value: How Go Tricks You Into Thinking It’s by Reference

Pavel Sanikovich

Oct 14 '25

Copying by Value: How Go Tricks You Into Thinking It’s by Reference

#go #microservices #devex #coding

4 min read

Cover image for Stop Wasting Hours: Docker Skills Every Front-End Engineer Needs

Pavel Sanikovich

Oct 7 '25

Stop Wasting Hours: Docker Skills Every Front-End Engineer Needs

#frontend #docker #development #programming

4 min read

Pavel Sanikovich

Aug 17 '25

How I Built a WhatsApp Ad Leads Finder with Apify

#apify #webscraping #marketing

2 min read

Pavel Sanikovich

Mar 21 '25

Why Go Developers Avoid Frameworks and When Their Use is Justified

#go #development #performance

4 min read

Cover image for From the Shadowed Depths: Why Telegram Mini Apps Outshine Native Apps for Business

Pavel Sanikovich

Mar 8 '25

From the Shadowed Depths: Why Telegram Mini Apps Outshine Native Apps for Business

#telegram #go #startup #webdev

3 min read

Pavel Sanikovich

Mar 5 '25

Introducing TMA Starter Kit: Your Fast Track to Building Telegram Mini Apps

#go #opensource #vue #startup

4 min read

Pavel Sanikovich

Feb 28 '25

Handling Optional Fields in Go with Pointers

#go

3 min read

Pavel Sanikovich

Dec 30 '24

Taming the Beast: Harnessing `go.uber.org/ratelimit` in Go Applications

#go #backend

3 min read

Pavel Sanikovich

Dec 20 '24

High-Load Systems: Choosing Between Redpanda and Kafka

#kafka #redpanda #highload

3 min read

Pavel Sanikovich

Dec 18 '24

Managing User Balances with ClickHouse in High-Volume Microtransactions: A Comprehensive Approach

#clickhouse #openrtb #adtech

4 min read

Pavel Sanikovich

Oct 11 '23

Golang sync.Pool benefits + Benchmarks

#go

3 min read

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