Senior Manager, Blockchain Security Software Audit at OKX - Singapore, Singapore

Job Description

OKX will be prioritising applicants who have a current right to work in Singapore, and do not require OKX's sponsorship of a visa.

Who We Are

At OKX, we believe that the future will be reshaped by crypto, and ultimately contribute to every individual's freedom.

OKX is a leading crypto exchange, and the developer of OKX Wallet, giving millions access to crypto trading and decentralized crypto applications (dApps). OKX is also a trusted brand by hundreds of large institutions seeking access to crypto markets. We are safe and reliable, backed by our Proof of Reserves.

Across our multiple offices globally, we are united by our core principles: We Before Me, Do the Right Thing, and Get Things Done. These shared values drive our culture, shape our processes, and foster a friendly, rewarding, and diverse environment for every OK-er.

OKX is part of OKG, a group that brings the value of Blockchain to users around the world, through our leading products OKX, OKX Wallet, OKLink and more.

About the Opportunity

OKX is undertaking a significant global team buildout, and we are looking for an experienced Manager or Senior Manager to join our Software & Digital Asset Audit team. This is a unique opportunity for a subject matter expert in Blockchain Security to execute critical assurance projects that directly impact the security of our core crypto-native technology. As a senior individual contributor, you will perform expert-level security reviews and tests of smart contracts, protocols, and digital wallets.

What You’ll Be Doing

Serve as the subject matter expert for blockchain security, leading detailed security analysis of smart contract source code (Solidity, Rust) and technical audits of the entire ecosystem securing our core crypto-asset operations, including smart contracts, L1/L2 protocols, and wallet infrastructure.
Leverage your deep expertise in blockchain security to both lead our digital asset assurance program and contribute to a wide range of audits across product security (AppSec) and AI applications.
Contribute to the annual risk-based audit plan by identifying emerging blockchain security risks and scoping potential audit projects.
Collaborate effectively with Engineering, Product, and security stakeholders to communicate audit findings, provide value-add recommendations, and monitor remediation plans.
Develop and maintain expert knowledge of the evolving crypto threat landscape and blockchain security best practices to ensure audit approaches remain current and effective.

What We Look For In You

We're looking for a hands-on, deeply technical auditor who is a recognized subject matter expert in Blockchain Security. You have a passion for protocol-level security and a proven ability to identify vulnerabilities in complex, crypto-native systems. You thrive on securing the core technology of the decentralized future while also applying your skills to the broader software security landscape.

Crypto-Native Expertise & Experience: Expert-level understanding of blockchain technology is required, including distributed ledgers, consensus mechanisms, cryptography, and smart contracts. Prior hands-on experience within a crypto exchange, custody, or DeFi environment is essential.
Digital Asset & Blockchain Security (SME): Demonstrable ability to execute technical audits of the technologies that secure crypto-assets, including Smart Contracts (Solidity, Rust), L1/L2 Protocols, and Wallet Infrastructure (HSMs, MPC).
Critical Thinking for Complex Environments: A proven capacity to analyze novel technical and control environments unique to crypto, identify intricate root causes, and propose effective, context-specific solutions.
Data Analysis & SQL: Experience using SQL for data analysis is highly desired. The ability to achieve proficiency in performing data analytics with SQL within the first 90 days is required.
Broad Expertise Across Software Security: Demonstrable experience auditing the design and effectiveness of controls in several of the following areas:

Product & Application Security (AppSec): Performing technical security assessments of custom software and the SDLC.
AI Application Security: Assessing the secure implementation and integration of AI models within proprietary software.

Perks & Benefits

Competitive total compensation package
L&D programs and education subsidy for employees' growth and development
Various team building programs and company events
Wellness and meal allowances
Comprehensive healthcare schemes for employees and dependants
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