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Emma T
@5INFFa4 • Oct 30, 2025

Oct 30, 2025

307

How do you explain reentrancy in interviews without sounding like you memorized it?

I keep practicing smart contract interview questions, and reentrancy comes up every time.I can say the rule: “Do Checks-Effects-Interactions.”But when they ask why the order matters, I struggle to explain...

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Web3Learner_Abaz
@Web3LearnerAbaz • Nov 12, 2025

Nov 12, 2025

304

As a junior Solidity dev, how deep should I really go into gas optimization during interviews?

I’ve noticed that most junior Solidity interviews don’t dive too heavily into gas micro-optimizations unless it’s for a DeFi or L2 project where every extra transaction cost matters. What interviewers...

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Arif
@ofh3VYy • Oct 28, 2025

Oct 28, 2025

256

Looking for a quick resume roast for blockchain dev roles

Goal: Junior Smart Contract Engineer / Blockchain DeveloperSpecific Question: From your experience, what's the #1 thing missing from my resume for a role like this?All feedback welcome!

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Andria Shines
@ChainSage • Oct 28, 2025

Oct 28, 2025

248

Struggling with Hardhat debugging — am I missing something beyond console.log? 🤔

I’ve started building my first few smart contracts and use Hardhat for testing. But every time something fails, I just keep adding console.log everywhere until it magically works. It feels...

Like 1 Replies 1
ChainMentorNaina
@ChainMentorNaina • Oct 28, 2025

Oct 28, 2025

320

CEI rule in interviews — when do you actually break it without breaking the contract?

Everyone tells juniors: “Follow Checks-Effects-Interactions.” ✅But the moment a Solidity interview goes deeper — we freeze. 😅Real world smart contract security isn’t just memorizing rules. Sometimes you do call external...

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Abdil Hamid
@ForensicBlockSmith • Oct 28, 2025

Oct 28, 2025

252

Live PR review nerves — do seniors secretly judge beginners too harshly?

I’ll be honest — interviews don’t scare me anymore.But that first live Pull Request review at a real job? Terrifying.I’ve heard stories that seniors can be blunt, especially in blockchain...

Like 3 Replies 2
Shubhada Pande
@ShubhadaJP • Oct 28, 2025

Oct 28, 2025

279

How to Pass Smart Contract Developer Interviews in 2025: Hiring Signals Founders Trust in the First 20 Minutes

Skills are not your biggest challengeEvery week, Smart Contract developers apply to Web3 startups with clean GitHub profiles, personal DApps, solidity practice, and strong motivation. Yet the rejections come before...

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Difficulty - Medium

Total Plays - 16

Allowed Time - 10 sec

Best time - 2.464

Why might a contract work on testnet but fail on mainnet?

Tip: Click "Play" to reveal options and start playing.

#A

#B

#C

#D

Explanation:
Mainnets often have stricter gas limits and higher costs than testnets. A function that runs fine on testnet may exceed block gas limits in production. Developers should simulate deployments and optimize loops before mainnet release

Leaderboard
Difficulty - Medium

Total Plays - 19

Allowed Time - 10 sec

Best time - 2.132

When does a fallback trigger?

Tip: Click "Play" to reveal options and start playing.

#A

#B

#C

#D

Explanation:
The fallback() function runs when a transaction calls a non-existent function or sends data without matching any signature. It’s essential for proxy contracts but must be written carefully to avoid gas griefing and reentrancy risks.

Leaderboard
Difficulty - Medium

Total Plays - 12

Allowed Time - 10 sec

Best time - 1.483

What does delegatecall do?

Tip: Click "Play" to reveal options and start playing.

#A

#B

#C

#D

Explanation:
delegatecall lets one contract run another’s code while keeping its own storage and balance. It’s powerful but risky — if the target contract has malicious logic, it can overwrite your state variables or drain funds. Auditors always flag unsafe delegatecalls

Leaderboard
Web3Learner_Abaz
@Web3LearnerAbaz • Oct 27, 2025

Oct 27, 2025

2.0K

Looking for Blockchain Internship: What Skills Do I Need to Start in Web3?

Hi everyone, I’m 18 and want to start my career in the blockchain industry. I’m planning to do an internship, but honestly, I’m confused about what skills to learn first.Some...

Like 7 Replies 5
Web3Learner_Abaz
@Web3LearnerAbaz • Oct 26, 2025

Oct 26, 2025

413

How do you answer “Where do you see blockchain in 5 years?” in Interview

I keep getting this question in blockchain interviews: “Where do you see blockchain in 5 years?” Honestly every time I become nervous while answering as I want to give a...

Like 4 Replies 5
Abhi Shankar
@abhishankar • Oct 26, 2025

Oct 26, 2025

260

About web3 non-tech roles (Finance, consulting, Marketing, operations, etc..)

I was preparing for MBA entrance exams like CAT,SNAP etc to get into a top b school in india. I am going to take gap years to prepare for the...

Like 2 Replies 4
DeFiArchitect
@DeFiArchitect • Oct 26, 2025

Oct 26, 2025

316

Recruiters — how do you actually check if someone’s blockchain experience is real?

Over the last few months, I’ve seen a strange pattern while helping our talent acquisition team searching for mid-level blockchain developers. The pattern is almost everyone’s résumé reads the same...

Like 3 Replies 3
CryptoSagePriya
@CryptoSagePriya • Oct 26, 2025

Oct 26, 2025

241

How do you ask questions without looking like a confused junior?

Every time I need to ask a question, I freeze. I left with fear “If you ask this, they’ll think HR made a mistake hiring you.” 😅But when I don’t...

Like 6 Replies 5
SolidityStarter
@SolidityJatin • Oct 26, 2025

Oct 26, 2025

269

Do Seniors Judge Too Harshly in Blockchain Code Reviews?

I’ve been doing tutorials and small projects but the Smart Contract world seems to be a HUGE and intimidating too. In every tutorial and post, everyone says security comes first,...

Like 1 Replies 2
Job Expired

C

Senior Software Developer (Ruby on Rails / Golang)

Crypto.com • Full Time • NA

Remote/Hybrid Posted: Oct 26, 2025

Job description

We’re seeking an experienced Senior Software Developer to join a fast-moving engineering team responsible for designing, building, and maintaining scalable software solutions for Crypto.com’s venture projects. These projects are experimental, agile, and strategically aligned with our core business ecosystem.As part of this lean and innovative team, you’ll contribute to both...

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Kaustubh
@kaustubh • Oct 25, 2025

Oct 25, 2025

215

List: Best Python Courses on YouTube for Career in Crypto

Hi AOB team and fellow crypto enthusiasts, I thought of creating a list of all the best and free Python courses on YouTube for career in crypto. Everyone says one...

Like 1 Replies 0
Arif
@ofh3VYy • Oct 24, 2025

Oct 24, 2025

285

Tear this resume apart — what’s missing for a solid Web3 dev profile ?

Hi everyone,I’ve been focusing on Blockchain/Web3 development alongside my core CS skills. I’ve attached my current resume for review.I’m curious:Does this resume look strong enough for entry-level Web3/blockchain developer or...

Like 1 Replies 1
Web3Learner_Abaz
@Web3LearnerAbaz • Oct 23, 2025

Oct 23, 2025

427

Starting my first blockchain dev internship next week - what gets junior devs fired during probation?

What's up everyone!So I'm starting my first blockchain developer internship next week and I'm honestly kinda freaking out. I've been lurking here for a while but figured it's time to...

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