Senior Security Architecture Engineer

OKX; Singapore; On-site; SGD 90,000 - 120,000; Full time

Job summary

A leading crypto exchange in Singapore seeks a Security Governance Expert to build the security review process and governance framework from the ground up. This role involves leading the security architecture design, conducting specialized governance for core systems, and driving cross-departmental collaboration. The ideal candidate has over 5 years of experience in tech companies, a strong background in cloud security, and excellent communication skills.

Benefits

L&D programs and education subsidy

Wellness and meal allowances

Comprehensive healthcare schemes

Qualifications

• 5+ years of experience in internet/tech companies.
• Experience building security review systems from scratch.
• Proven cross-functional project management experience.

Responsibilities

• Build the security review process and governance framework.
• Lead security architecture design for cloud infrastructure.
• Conduct specialized security governance for core systems.

Skills

Proficient in cloud security architectures

Strong Application Security background

Excellent cross-departmental communication

Logical thinking and professional writing

Deep understanding of security risks

Education

Bachelor’s degree in Computer Science or related fields

Tools

AWS

Aliyun

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.

About OKX

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

The Technology Governance team provides security advice and guidance to OKX entities across all coverage areas, including global locations support business growth by working with all teams within the company to help them achieve their goals. This team works closely with compliance and legal teams to interpret global requirements for applying for licensing or any regional requirements, and understanding them.

What You’ll Be Doing

Security Review System & Virtual Organization Construction

System Establishment: Responsible for building the company-level security review process and governance framework from the ground up (0 to 1), defining collaboration mechanisms, and clarifying rights and responsibilities.

Process Integration: Seamlessly embed security controls into IT change and release processes. Establish security entry and blocking standards (Quality Gates) to ensure full visibility and control over the company's technical changes.

Security Architecture Design & Core System Assessment

Architecture Planning: Lead the security architecture design for cloud infrastructure (IaaS/PaaS) and business applications. Formulate high‑scalability and high‑performance security defense strategies and technical baselines for complex scenarios such as Cloud‑Native environments (K8s/Containers) and microservices.

Deep Governance: Conduct specialized security governance for core systems to identify deep‑seated architectural risks in product design, system development, and runtime environments; propose systematic remediation plans and lead their implementation.

Governance Operations & Executive Decision Support

Visibility Construction: Establish a routine reporting mechanism for security governance and reviews. Clearly present the security posture, major risks, and governance progress to management, providing data support for decision‑making.

Closed‑Loop Management: Drive relevant stakeholders to resolve bottlenecks identified during reviews. Promote cross‑departmental risk remediation and architectural upgrades, ensuring a closed‑loop management process from discovery to remediation.

Policy Construction & Enablement

Combine industry best practices (e.g., ISO27001, SDL, DevSecOps) with regulatory requirements to improve the company's information security management policies.

Empower R&D and Operations teams through virtual groups/teams to enhance overall security awareness.

What We Look For In You

Experience & Background

Education: Bachelor’s degree or above in Computer Science, Information Security, or related fields.

Experience: 5+ years of experience in internet/tech companies.

Key Experience: Proven experience in building security review systems from scratch or leading large‑scale security governance projects. Experience operating cross‑functional virtual organizations is preferred.

Architecture Skills: Proficient in mainstream cloud security architectures (AWS/Aliyun). Possesses a strong Application Security background (Web/API/Mobile), with a solid understanding of network, host, and data security principles. Capable of conducting threat modeling, architectural risk assessments, and designing solutions for complex business scenarios.

Offensive & Defensive Insight: Deep understanding of common security risks (OWASP Top 10) and attack vectors. Familiar with security development lifecycles (SDL/DevSecOps) and able to guide architectural design from an attacker/defender perspective.

Reporting & Communication: Strong logical thinking and professional writing skills (adept at writing governance weekly updates and analysis reports). Excellent cross‑departmental communication and coordination skills to effectively drive cooperation between business and operations teams for remediation.

Project Management: Result‑oriented. PMP certification or security certifications (CISSP, CISA, CCSP) are preferred.

Language Ability

• Proficiency in speaking, reading and writing in both English and Mandarin to collaborate effectively with global and cross‑functional team members.

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

More that we love to tell you along the process!

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