Oct 10, 2025 
21 mins to read Hi! I'm Charles, delighted to meet everyone again.
Recently while organizing resumes backstage at ETHGlobal Tokyo, I suddenly noticed an interesting phenomenon: those seemingly most successful interviewees often spend the golden 30 minutes doing final sprint preparations before interviews. This reminded me of my first interview ten years ago—back then I was still struggling with understanding what Gas Fee was, rather than how to answer project experience questions.
The Secret of the Golden 30 Minutes
I've seen too many job seekers on the MyJob.one platform who often stay up all night excitedly reviewing materials the night before an interview, only to show up completely drained the next day. In reality, proper preparation should be more fragmented and strategic.
These 30 minutes should be the perfect combination of: reviewing technical highlights, rehearsing common questions, preparing for Q&A, checking all materials, and adjusting mental state.
Imagine standing at the entrance of a blockchain network, waiting for Gas Fee confirmation—it requires precise calculation and patient waiting. Interview preparation follows the same logic; you need to find the optimal balance between submitting your resume and the actual interview.
At a café in San Francisco, I once saw a young man applying for a StarkNet development engineer position. In his final 30 minutes, he did three things:
- Reviewed key algorithm implementations from his projects
- Prepared three technical questions he considered most valuable
- Checked the latest version of his LinkedIn profile
Interestingly, his interview success rate improved by nearly 40% after that.
Special Challenges for Web3 Job Seekers
Honestly, in traditional industries, interviewers often expect structured resumes and clear answer paths. But in the Web3 space, it's completely different—what's valued here is creativity, problem-solving skills, and passion for emerging technologies.
For example, during an interview for a Solana development engineer position, I was asked:
"If you had to reduce Gas Fee without affecting user experience, how would you do it?"
This question has no standard answer; it tests your depth of understanding of blockchain technology and innovative thinking.
In final sprint preparations, Web3 job seekers should pay special attention to:
- Understanding project context: Not just memorizing the tech stack, but understanding why those technologies were chosen
- Preparing case studies: Ready to explain how you've solved specific technical challenges
- Tracking community trends: Knowing the target company or project's performance and discussion focus in the community
- Mastering toolchains: Ensuring proficiency with development tools and frameworks the project might use
- Preparing whitepaper interpretations: Especially when applying for protocol or infrastructure-related roles
By the way, at an ETHGlobal Tokyo workshop, I noticed something: Many job seekers focus too much on salary figures while overlooking whether the project team's technical philosophy aligns with theirs—this is especially important in the Web3 world.
Technical Preparation: From Code to Concepts
As a Web3 job seeker entering the final sprint phase, technical preparation is core but not everything.
Solidity Code Review
If you're applying for a smart contract development position, in the last 30 minutes you should:
- Review recently written key contracts
- Check if reentrancy guard implementations are correct
- Consider specific Gas optimization strategies
- Prepare at least one improved contract example
- Understand EVM workings
Imagine auditing code—not to find mistakes, but to demonstrate your thought process.
DApp Development Thought Organization
For decentralized application development roles, focus on:
- User Experience design principles
- Txns interaction flow optimization
- Error handling strategies
- Navigating complex cross-chain operations
During an interview at a London startup, I met a candidate who not only showcased his codebase but also prepared a detailed user experience improvement proposal. This impressed me—because in Web3, technical skills are foundational; the real differentiator is thinking about how to make your product easier for users.
Rewards Layer Knowledge Base
If you're targeting Layer 2 solution roles like Celestia or StarkNet:
- How ZK-Rollup works
- Data Availability Sampling (DAS)
- Merkle Tree application scenarios
- Understanding Data Sharding strategies
These concepts are like caffeine in blockchain—proper intake keeps you alert and focused, but excess causes anxiety.
At a San Francisco crypto startup, I witnessed interviewers deliberately asking questions about Rollup mechanisms to see if candidates truly understood the trade-offs.
Ethereum Name Service (ENS) Configuration Experience
This is easily overlooked by many job seekers. If you've configured ENS domains in personal wallets:
- Describe configuration steps and issues encountered
- Explain why you chose this domain strategy
- Compare costs and security of different registration methods
Such details will make you stand out—after all, in Web3, every small decision can have ripple effects.
Last-minute Checklist
In the final minutes, ensure you complete these checks:
- Tech stack confirmation: Are you truly familiar with all technologies mentioned by the company? Especially those marked as
