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Rust Backend Engineer — Rust

Svix • Full Time

San Francisco, CA Posted: Mar 31, 2026

Job description

Svix is an infrastructure startup focused on server-to-server communication, beginning with webhook delivery systems used by high-growth startups and enterprise customers. The company builds scalable backend systems designed for performance, reliability, and strong developer experience. This Rust Backend Engineer role is a full-time, on-site position in San Francisco. The engineer...

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Job Expired

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Senior Compliance Manager

OKX • Full Time

Remote · Dubai, United Arab Emirates Posted: Mar 31, 2026

Job description

OKX operates a global crypto exchange and wallet ecosystem serving retail users and institutions, with a strong focus on regulatory reliability and proof of reserves. This crypto compliance role sits within the UAE entity and supports the Compliance function responsible for maintaining regulatory alignment and enterprise risk standards. The Senior...

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Shubhada Pande
@ShubhadaJP • Mar 30, 2026

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117

Senior backend engineer (Python / low-latency systems): what proof gets you shortlisted for real-time market data, WebSocket reliability, and production correctness?

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Tushar Dubey
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Blockchain developer (DAML / Canton, remote worldwide): what 2 proof signals get you shortlisted in a 10-second screen?

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Post a Web3 Job | Blockchain Job Board for Founders, Recruiters & Hiring Teams

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@ShubhadaJP • May 18, 2026

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Web3 JD Review for Teams Attracting Weak-Fit Blockchain Applicants

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Difficulty - Medium

Total Plays - 1,571

Allowed Time - 10 sec

Best time - 1.252 sec

What is the most direct risk of “unbounded loops” in on-chain code?

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

#A

#B

#C

#D

Explanation:
Unbounded loops can make functions exceed block gas limits as state grows, permanently preventing execution—classic denial of service. This is common in airdrop distributions, iterating holders, or clearing arrays. Security interviews test this because it’s a real production failure: “worked in tests” but becomes uncallable at scale. Mitigations include batching/pagination and off-chain indexing.

Leaderboard
Difficulty - Medium

Total Plays - 1,568

Allowed Time - 10 sec

Best time - 0.000 sec

Which bug class is most associated with incorrect upgradeable storage layout?

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

#A

#B

#C

#D

Explanation:
In upgradeable contracts, the proxy holds storage while the implementation code changes. If developers reorder variables or change types, storage slots map incorrectly—corrupting balances, roles, or critical pointers. This is a high-severity issue in audits. Interviewers expect candidates to mention append-only storage layout, storage gaps, and standards like EIP-1967 for proxy slots.

Leaderboard
Difficulty - Medium

Total Plays - 1,566

Allowed Time - 10 sec

Best time - 0.778 sec

What is the core risk of using tx.origin for authorization?

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

#A

#B

#C

#D

Explanation:
tx.origin authorization can be bypassed if a user is tricked into calling an attacker contract, which then calls the target contract—tx.origin remains the user. This is a known insecure pattern in Ethereum security. Interviewers like it because it tests whether candidates understand call chains and why msg.sender + explicit access control is the correct boundary.

Leaderboard
Shubhada Pande
@ShubhadaJP • May 11, 2026

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BLOCKCHAIN DEVELOPER
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147

Job as a Blockchain Devloper

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BLOCKCHAIN DEVELOPER
@snappy-pen • Mar 5, 2026

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133

Jobe in Blockchain

I am in search of a stable Blockchain job. Please help.

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From On-Chain Intelligence to Product Strategy in Blockchain Risk Infrastructure

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Shubhada Pande
@ShubhadaJP • Mar 2, 2026

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Web3 Hiring Trends 2026: Why Getting a Blockchain Job Feels Harder (Even With More Roles)

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Shubhada Pande
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AOB Announcement: 1:1 Direct Messaging is live (request-based)

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AnitaSmartContractSensei
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Mar 19, 2026

197

US hiring: why “senior Solidity” roles reject 4+ yr candidates — which hiring signals are missing?

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