Karuha - DEV Community

Karuha

Sep 9

NFC vs QR: which business card actually gets scanned

#webdev #ux #nfc #productivity

4 min read

Karuha

Sep 8

HackerRank AI-Assisted Interview: If the Assistant Won't Write Code, Check the Question Type

#career #interview #python #beginners

8 min read

Karuha

Sep 4

The Second Worker Never Saw Job 2

#career #interview #javascript #node

5 min read

Karuha

Sep 3

Forgot client.release()? Postgres Never Sees Request 11

#career #interview #javascript #node

6 min read

Karuha

Sep 2

Drain In-Flight HTTP Before Kubernetes Sends SIGKILL

#career #interview #node #javascript

8 min read

Karuha

Sep 1

Fencing Tokens Stop the Write Your Redis Lease Already Released

#career #interview #javascript #node

7 min read

Karuha

Aug 31

Why JWT Refresh Token Rotation Fails Without a Token Family

#career #interview #javascript #node

7 min read

Karuha

Aug 30

Google's AI-Assisted Coding Interview: Catch the Cached 503 the Model Will Ship

#career #interview #javascript #webdev

7 min read

Karuha

Aug 29

Transactional Outbox in Node.js: Never Publish Outside the Transaction

#career #interview #javascript #node

6 min read

Karuha

Aug 28

Webhook Signature Verification in Node.js: Hash the Raw Bytes

#career #interview #javascript #node

1

6 min read

Karuha

Aug 27

Git Bisect Is an Interview Question: Find the Regression You Can Prove

#git #career #interview #javascript

5 min read

Karuha

Aug 26

Linktree Raised Prices Again — Here's What Freelancers Are Actually Switching To

#webdev #productivity #career #freelance

2 min read

Karuha

Aug 25

Debouncing Is an Interview Question: Build a Signal Filter You Can Explain

#career #interview #javascript #testing

5 min read

Karuha

Aug 24

Build a Tool-Call Trace Checker Before Your AI Engineering Interview

#javascript #testing #career #interview

5 min read

Karuha

Aug 22

WebSocket Reconnects Are a State Machine: Build a Deterministic Interview Drill

#javascript #career #interview #testing

6 min read

Karuha

Aug 21

Turn a Pull Request Into a 10-Minute Technical Interview Drill

#career #interview #javascript #git

6 min read

Karuha

Aug 19

Conditional Requests Are an Interview Contract: Build an ETag Drill in Node.js

#javascript #backend #career #interview

6 min read

Karuha

Aug 17

Streaming LLMs Need a Terminal Contract: A Node.js Interview Drill

#javascript #testing #career #interview

5 min read

Karuha

Aug 14

Stop Guessing srcset: Build a Responsive-Image Selection Drill

#webdev #javascript #career #interview

5 min read

Karuha

Aug 13

Persisted GraphQL Queries: Test the APQ Fallback Before Your Interview

#graphql #javascript #career #interview

7 min read

Karuha

Aug 12

Stop Rehearsing Technical Interview Answers: Build an Evidence Ledger Instead

#javascript #career #interview #testing

5 min read

Karuha

Aug 11

Stop Guessing the Event Loop: Build a JavaScript Timeline Test for Interviews

#javascript #career #interview #beginners

5 min read

Karuha

Aug 10

When One Bad Job Freezes the Queue: A Node.js Dead-Letter Drill

#javascript #backend #career #interview

5 min read

Karuha

Aug 8

Your Node.js Stream Is Not Safe Until write() Returns False

#node #javascript #career #interview

5 min read

Karuha

Aug 7

AI-Enabled Coding Interviews: Turn Model Answers Into Test Cases

#career #interview #javascript #testing

6 min read

Karuha

Aug 6

Cursor Pagination Is an Interview Contract, Not a Database Trick

#javascript #backend #career #interview

5 min read

Karuha

Aug 5

Build an Optimistic Update Queue, Then Prove the Rollback Contract

#javascript #webdev #career #interview

5 min read

Karuha

Aug 4

Build a Token-Bucket Rate Limiter, Then Prove the 429 Contract

#javascript #backend #career #interview

5 min read

Karuha

Aug 3

Stop Asking Was That Answer Good? Build a 25-Minute Mock Interview Review Loop

#career #interview #javascript #testing

5 min read

Karuha

Aug 2

The Database Migration Interview Answer: Prove Old and New Code Can Coexist

#career #interview #backend #javascript

5 min read

Karuha

Jul 31

Your Autosave Interview Answer Needs a Race-Condition Test

#javascript #testing #career #interview

6 min read

Karuha

Jul 30

Test a Circuit Breaker State Machine, Then Explain It in a Technical Interview

#javascript #testing #career #interview

4 min read

Karuha

Jul 29

How to Defend an AI-Assisted Take-Home Assignment in the Follow-Up Interview

#career #interview #javascript #testing

5 min read

Karuha

Jul 28

Stop the Cache Stampede: A Small JavaScript Drill for Backend Interviews

#javascript #backend #career #interview

5 min read

Karuha

Jul 27

Read a Distributed Trace Like a Debugger: A Node.js Interview Drill

#career #interview #javascript #backend

5 min read

Karuha

Jul 26

Build a Model Rollout Gate, Then Explain It in an MLOps Interview

#ai #interview #career #javascript

5 min read

Karuha

Jul 25

Build a Tiny Feature Flag Evaluator, Then Explain Rule Precedence in an Interview

#career #interview #javascript #backend

4 min read

Karuha

Jul 24

A 60-Line Contract Test for LLM JSON (and a Better AI Engineering Interview Answer)

#ai #javascript #testing #career

1

5 min read

Karuha

Jul 23

The Retry-Safe API Answer: Build an Idempotency Guard in Node.js

#career #interview #javascript #backend

5 min read

Karuha

Jul 22

Build a JavaScript Concurrency Limiter, Then Explain It in an Interview

#career #interview #javascript #backend

5 min read

Karuha

Jul 20

Debugging Interviews: Start With a Failing Contract, Not a Clever Guess

#career #interview #javascript #backend

5 min read

Karuha

Jul 19

Threat-Model a Small API Before Your Security Interview

#security #career #interview #javascript

5 min read

Karuha

Jul 18

Build a Safer fetch Retry, Then Explain It in an Interview

#javascript #webdev #career #interview

1

5 min read

Karuha

Jul 17

Build an Accessible Modal, Then Explain the Trade-offs in an Interview

#career #interview #html #a11y

5 min read

Karuha

Jul 15

Practice System Design Interviews by Writing Constraints First

#career #interview #javascript #architecture

6 min read

Karuha

Jul 14

Read a Query Plan Like a Senior Engineer: A 15-Minute Interview Drill

#career #interview #javascript #postgres

5 min read

Karuha

Jul 12

Turn an SLO Into an Interview Answer With a Small Node.js Error-Budget Drill

#career #interview #javascript #devops

5 min read

Karuha

Jul 10

Practice Frontend Typeahead Interviews With AbortController and ARIA

#javascript #webdev #career #interview

6 min read

Karuha

Jul 9

Practice Frontend Performance Interviews With a Node.js Drill

#career #interview #javascript #webdev

6 min read

Karuha

Jul 8

Mine Your Git Log for Better Behavioral Interview Stories

#career #interview #javascript #beginners

7 min read

Karuha

Jul 5

Practice Backend Incident Interviews With a 70-Line Node.js Drill

#career #interview #javascript #backend

7 min read

Karuha

Jul 4

Turn Any Job Description Into a Mock Interview Pack With 70 Lines of Node.js

#career #interview #javascript #beginners

1

7 min read

Karuha

Apr 5

## The Interview You Keep Failing Without Knowing Why

#interview #career #jobsearch #ai

6 min read

Karuha

Apr 5

Six Months, Fourteen Rejections, and Finally a Job Offer I Didn't Have to Talk Myself Into

#interview #career #jobsearch #ai

6 min read

Karuha

Apr 5

What Interviewers Actually Want in System Design (A Candidate Who's Been On Both Sides)

#interview #career #jobsearch #ai

6 min read

Karuha

Apr 5

My phone screen with Google was at 9am on a Tuesday, and I'd spent the previous

#interview #career #jobsearch #ai

7 min read

Karuha

Apr 5

What Actually Happens in an Amazon System Design Interview (And Why Most Prep Misses the Point)

#interview #career #jobsearch #ai

7 min read

Karuha

Apr 5

I Cheated on My Google Interview (Sort Of)

#interview #career #jobsearch #ai

6 min read

Karuha

Apr 5

## The Interview Arms Race Nobody Talks About

#interview #career #jobsearch #ai

6 min read

Karuha

Apr 4

## I Spent Three Months on LeetCode and Still Bombed the Loop

#interview #career #jobsearch #ai

1

5 min read

Writing Debut