248 results for "gas fees"
-
Reply #Discussions
When preparing for smart contract interviews, how much does gas optimization really matter?
I went into interviews thinking gas optimization was a core requirement. I spent weeks on it.In reality, most interviewers cared more about how I reasoned through problems. They asked things like:“What happens if this fun...
By amanda smith · @DecentralizedDev -
Quiz #Blockchain Quiz
Why is PUSH0 useful in gas optimization?
Why is PUSH0 useful in gas optimization? Why is PUSH0 useful in gas optimization?
By Shubhada Pande · @ShubhadaJP -
Reply #Discussions
US Web3 startup interview: I blanked on EVM gas (SSTORE/SLOAD, warm vs cold, slot packing). What’s the mental model engi...
The easiest way to survive these questions is to stop memorizing numbers and start explaining what kind of work the chain is paying for. Why SSTORE is expensive (the “why behind the number”) A storage write changes Ethereum’s persistent glo...
By SmartContractGuru · @SmartContractGuru -
Reply #Discussions
US Web3 startup interview: I blanked on EVM gas (SSTORE/SLOAD, warm vs cold, slot packing). What’s the mental model engi...
Here’s the cheat-sheet I give juniors, but the trick is how you say it in an interview. Storage writes are expensive because they mutate persistent state. Storage reads are cheaper because they don’t. Warm access exists because first touch...
By AnitaSmartContractSensei · @SmartContractSensei -
Reply #Discussions
US Web3 startup interview: I blanked on EVM gas (SSTORE/SLOAD, warm vs cold, slot packing). What’s the mental model engi...
I’m also curious about how gas is actually “mapped” to opcodes for storage operations in the EVM. In interviews, I’ve noticed the confusion isn’t just the numbers — it’s understanding what the cost represents. For example, SSTO...
By Andria Shines · @ChainSage -
Reply #Discussions
US remote Solidity interviews: how do you quantify gas-optimization wins without overclaiming?
What I’ll say (and it’s worked in a couple US-based loops) is: “I can’t pretend I know exact call volume, so I sanity-check it in two ways — I look at onchain history for similar functions/events to get an order-of-magnitude, and then I pre...
By ChainPenLilly · @ChainPenLilly -
Reply #Discussions
US remote Solidity interviews: how do you quantify gas-optimization wins without overclaiming?
This thread is strong because the discussion moved away from “trace screenshot = proof” and toward judgment. In US-facing Solidity interviews, the real signal is how you quantify gas savings without overclaiming and explain QA...
By Shubhada Pande · @ShubhadaJP -
Discussion #Discussions
US Web3 startup interview: I blanked on EVM gas (SSTORE/SLOAD, warm vs cold, slot packing). What’s the mental model engi...
Yesterday I had a smart contract interview with a US-based Web3 startup (small team, very practical round). They went deep on EVM storage gas: SSTORE vs SLOAD, warm vs cold access (EIP-2929), and when slot packing actually save...
By Miben Rogers · @YGHQ65t -
Reply #Discussions
US Web3 startup interview: I blanked on EVM gas (SSTORE/SLOAD, warm vs cold, slot packing). What’s the mental model engi...
Emma’s point about SSTORE being “cost + bug surface” is underrated. In a review I did recently, the expensive part wasn’t the opcode trivia — it was accidental writes inside loops and repeatedly touching new slots. When you’re performance-t...
By Victor P · @TrG6JIR -
Discussion #Discussions
US remote Solidity interviews: how do you quantify gas-optimization wins without overclaiming?
I’m a Solidity dev who ends up doing a lot of QA-style performance checks, and I’m doing web3 interview prep for US-based remote roles.In a recent L2 bridge change, a patch reduced storage reads but added a bit of calldata and a couple extr...
By Abasi T · @ggvVaSO -
Reply #Discussions
US remote Solidity interviews: how do you quantify gas-optimization wins without overclaiming?
This is super helpful, especially the point about calldata dominating and the “ask one question back” move — it feels like a real way to stay honest without sounding defensive. I’ve had a similar moment in a US interview loop where they wer...
By AnitaSmartContractSensei · @SmartContractSensei -
Discussion #Discussions
EVM Interview Questions for Solidity Developers: How to Tackle Gas Optimization, Storage Layouts, and Delegatecall Scena...
I’ve been preparing for blockchain developer interviews lately, and the Ethereum Virtual Machine (EVM) section still feels like a dark box. I know it powers every smart contract on Ethereum and compatible chains like Polygon, Avalanch...
By SmartContractGuru · @SmartContractGuru