1,000 results for "smart contract developer"
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Solidity interview: Overflow/Underflow handling — 0.8 checks, SafeMath, and upgradeable contract gotchas
In most Solidity interviews, “0.8+ reverts on overflow” is treated like the starting line, not the finish. A better way to frame it is: built-in checks reduce silent wraparound, but interviewers still want to see whether you think about ass...
By Sayali Bhandari · @SayaliB -
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What Are Composable Smart Contracts? Interview Tips
Fixing Atomicity Issues Problem: If a transaction fails during execution, it can leave the contract in an inconsistent state without rolling back previous actions. Solution: =>Use Try-Catch Blocks: Implement try-catch to...
By amanda smith · @DecentralizedDev -
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What Are Composable Smart Contracts? Interview Tips
Good discussion going on guys. I’m working on a DeFi project using composable smart contracts and facing atomicity issues. When some transactions fail, they don’t roll back the entire sequence, which leaves the
By RubenzkArchitect · @zkArchitect -
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How do you prevent block.timestamp manipulation in Solidity smart contracts for time-sensitive auctions?
I would not make block.number the main answer here. For an auction, the better question is: can a small timestamp difference change who wins, whether a bid is accepted, or how much value moves? If yes, the auction design is too sensitive. A...
By Abdil Hamid · @ForensicBlockSmith -
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Upgradeable contracts still confuse me — how do you reason about initializer guards and storage layout safely?
I once shipped a contract without initializer protection and another dev accidentally called initialize() again… chaos 🤦♂️. Luckily it was internal testing, not mainnet, but that embarrassment sticks. Now, I always verify: 1)...
By SmartChainSmith · @SmartChainSmith -
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Upgradeable contracts still confuse me — how do you reason about initializer guards and storage layout safely?
My first “oh no” moment came when a proxy upgrade overwrote a mapping and user balances vanished on testnet 🙃. That taught me: storage layout is a contract, even if code changes. The simplest mental model: think of storage lik...
By Angela R · @Web3SkillMapper -
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Upgradeable contracts still confuse me — how do you reason about initializer guards and storage layout safely?
One thing that helped me stop fearing storage collisions was understanding where they actually come from. Most beginners think the danger is “adding new variables,” but the real danger is inheritance order and parent contracts...
By ChainPenLilly · @ChainPenLilly -
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When a Junior Triggers a Production Incident: What’s the Right Way to Respond Without Making Things Worse?
My worst production scare happened during a liquidity-pool upgrade. A junior thought the pool was stuck, so they instantly suggested redeploying the contract. Turned out the keeper script had stalled, nothing on-chain was actua...
By Abdil Hamid · @ForensicBlockSmith -
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How to Explain Blockchain Projects in Interviews (So Recruiters Actually Understand Them)
I had the exact same problem in recruiter screens — the moment I said “smart contracts + IPFS” their eyes glazed over 😅 What helped was making two versions of the same project explanation: 30–45 sec (non-technical...
By DeFiArchitect · @DeFiArchitect -
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4 years as a Salesforce dev — should I jump to Solidity now, or keep Salesforce as my safety net?
I’d say it’s a smart move only if you’re okay with uncertainty and you’re willing to be judged on output, not years of experience.The risk is real: Web3 hiring can freeze suddenly. Also,...
By AshishS · @Web3SecurityPro -
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US Remote Solidity Take-Home Assignment: Gas Optimization vs Clean Code — Do Interviewers Actually Grade SSTORE/SLOAD an...
I’m interviewing for US remote Solidity roles and keep getting a Solidity take-home assignment instead of a live coding round. The part I’m stuck on isn’t “can I finish it” — it’s what they actually grade. Typical prompt: implement a small...
By ChainMentorNaina · @ChainMentorNaina -
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Do AML and crypto compliance professionals need to understand ERC-3643 for RWA tokenization roles?
What I am noticing in recent RWA discussions on LinkedIn is that the conversation is slowly moving away from “tokenize everything” and more toward “who can verify, restrict, monitor, explain and defend the asset movement when the asset is r...
By Shubhada Pande · @ShubhadaJP