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Aditi R

@aGoKU4J • 1mo

Clean code, but still rejected — what do juniors miss in take-home assignments?

I’m a junior developer and I keep running into the same problem. My take-home assignments usually work, the code is clean, but I still get rejected — often without any...

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Fady Efat

@hACjMzw • 2mos

Guidance on Next Steps for Web3 Development Career

Hi everyone,I’ve developed 2 projects on the Spoilya network using Flutter:A one-time voting app.Clicker Bee mobile game with NFTs.and 1 using react with helping AI ,Crypto Tracker I’m not sure...

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Difficulty - Medium

Total Plays - 46

Allowed Time - 10 sec

Best time - 0.758 sec

Which hash function does Bitcoin use?

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Explanation:
Bitcoin uses the SHA-256 cryptographic hash function to secure transactions and link blocks in the blockchain. This algorithm produces a fixed 256-bit output, ensuring immutability and resistance to tampering. By using SHA-256, Bitcoin maintains trust, decentralization, and data integrity across the network

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Sayali Bhandari

@SayaliB • 3mos

What Do Web3 QA Managers Actually Look for in Candidates?

I’m a QA engineer trying to understand more into Web3 projects, but I keep getting stuck in interviews. Hiring managers often mention “on-chain test strategies” or “smart contract edge cases,”...

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Shubhada Pande

@ShubhadaJP • 4w

Web3 Non-Developer Interview Prep: QA, Product, Infra, Support & Security Roles Explained

Non-developer Web3 interviews are rarely about tools alone.Strong candidates often fail because they can’t explain reasoning, don’t communicate ownership, or misjudge what interviewers are actually evaluating across Product, QA, Infra,...

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SolidityStarter

@SolidityJatin • 3mos

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,...

1

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Ayush Verma

@NawtFound404 • 2mos

Silent Fails in Smart-Contract Access Control: What Teams Miss Until It’s Too Late

While practicing with Slither/Mythril and extracting CFGs from Solidity contracts, I keep noticing a pattern:Teams don’t get hacked because of complex bugs.They get hacked because of small access-control oversights.Examples I...

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Application deadline: 2 months

C

Senior Software Developer (Ruby on Rails / Golang)

Crypto.com • FULL_TIME • NA

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...

Details Login to apply
Akemi R

@snappy-bullet • 2mos

Got removed from my first blockchain job — now scared to ask for help again

This is my second blockchain developer job, and honestly, I’m still a bit shaken from the first one — I got kicked off partly because I asked too many questions...

3

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Merrythetechie

@Merrythetechie • 3mos

Post-Airdrop Reality: How to Measure “True” Web3 Retention in Growth Reports

After our NFT project’s airdrop last quarter, analytics looked great—wallets up 3×, Discord members +6K—but within two months, 80% were gone. Our next investor update is due, and the founders...

0

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Abhi Shankar

@abhishankar • 3mos

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...

2

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Difficulty - Medium

Total Plays - 29

Allowed Time - 10 sec

Best time - 1.796 sec

What is a blockchain QA analyst’s task?

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Explanation:
A Blockchain QA Analyst is responsible for testing smart contracts, dApps, and blockchain networks to ensure they work as intended. They identify bugs, check performance, and validate security, which is critical for building trust in decentralized applications. This role is increasingly important in blockchain careers, as companies rely on QA analysts to deliver reliable and secure Web3 products.

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Difficulty - Medium

Total Plays - 34

Allowed Time - 10 sec

Best time - 0.734 sec

Which consensus offers fastest finality?

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#D

Explanation:
BFT-based (Byzantine Fault Tolerant) consensus mechanisms achieve instant or near-instant finality by requiring agreement among validators in just one round of communication, allowing transactions to be finalized in seconds—faster than PoW, PoS, or DPoS.

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Tushar Dubey

@DataChainTushar • 2mos

Why Do Tests Pass on Hardhat/Anvil Forks but Break on Mainnet? What Hidden Differences Are We Missing?

I’ve hit this pain point so many times that I genuinely stopped trusting “all tests passing” unless I run them against a real mainnet RPC.Here’s the pattern: everything works fine...

3

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Difficulty - Medium

Total Plays - 38

Allowed Time - 10 sec

Best time - 0.959 sec

What does zk-SNARK stand for?

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#D

Explanation:
zk-SNARKs are zero-knowledge proofs that improve blockchain privacy and scaling by verifying transactions without revealing sensitive data.

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