Staff Engineer, Security Platform Development

OKX; United States; On-site; USD 210,000 - 320,000; Full time

Benefits offered by this job

Competitive compensation package

L&D programs and Education subsidy

Team building programs and events

Wellness and meal allowances

Comprehensive healthcare for employees

Job summary

OKX is seeking a Staff Engineer to own the build-out of security engineering and DevSecOps capabilities across the code, build, artifacts, images, deployment, and runtime.

This role focuses on designing security products, platform services, SDKs/Agents, and embedding protection directly into how code is written, built, shipped, and run—requiring depth in security and the ability to drive adoption in a fast-moving business environment.

Qualifications

• Deep understanding of operating systems, networking, compilers and the JVM, distributed systems, application security, cloud-native security.
• Expert-level Java with hands-on depth in the JVM, ClassLoader, Java Agent, ASM, ByteBuddy, instrumentation, and performance tuning; Python or Go proficiency.

Responsibilities

• Architect and build our end-to-end DevSecOps platform and the SDKs/Agents behind security products.
• Lead runtime protection through RASP and Java Agent instrumentation with performance tuning.
• Integrate and productise scanning across SAST, DAST, IAST, SCA, image scanning into CI/CD; enable remediation loops.
• Design offense and defense strategies for web, API and microservices security vulnerabilities.
• Apply AI-native security engineering with LLMs and AI Agents for analysis, remediation guidance, and automation.
• Embed as the security technical expert inside engineering teams, driving standards and release gates.

Skills

Security fundamentals

Java & JVM expertise

Python/Go proficiency

DevSecOps platform design

AI & security knowledge

Security governance & ownership

Cross-team communication

Tools

SonarQube

Coverity

ASM

ByteBuddy

Instrumentation

Java Agent

Job description

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

As a Staff Engineer, you'll own the build-out of our security engineering and DevSecOps capabilities: designing and developing the security products, platform services, and SDKs/Agents that embed protection directly into how code is written, built, shipped, and run.

This is a role for someone with real depth in security, broad coverage across the stack, and the engineering muscle to ship. Just as important is the ability to drive adoption — security that lands in complex, fast-moving business environments rather than sitting in a policy document.

What You'll Be Doing

• Architect and build our end-to-end DevSecOps platform and the SDKs/Agents behind our security products, covering code, build, artifacts, images, deployment, and runtime.
• Lead runtime protection through RASP and Java Agent — bytecode instrumentation, runtime hooking, and detection/interception engines using ASM, ByteBuddy, and Instrumentation, with continuous tuning for performance, stability, and compatibility.
• Integrate and productise scanning capabilities across SAST, DAST, IAST, SCA, code scanning, and image scanning. You'll embed tools like SonarQube and Coverity deep into CI/CD and close the loop from detection through blocking, remediation, and re-test.
• Go deep on application security offence and defence — designing detection, remediation, hardening, and counter‑measures for XSS, SQL injection, SSRF, deserialisation, command execution, authentication/authorisation flaws, and API security.
• Bring AI-native security engineering to life. Apply LLMs and AI Agents to vulnerability analysis, rule generation, false-positive attribution, remediation guidance, security knowledge capture, and engineering automation — and build a coherent view of the architecture, mechanics, and security implications.
• Embed as the security technical expert inside engineering teams, driving security standards, onboarding specifications, release gates, risk tiering, and remediation mechanisms that measurably lift the security baseline and delivery quality.
• Partner across engineering, architecture, SRE, QA, and business teams on priority projects, solving the genuinely hard security problems and turning the solutions into reusable platform capability and repeatable practice.

What We Look For In You

• Strong computer science and security fundamentals — deep understanding of operating systems, networking, compilers and the JVM, distributed systems, application security, cloud-native security, and supply chain security. Both breadth and depth.
• Expert‑level Java, with hands‑on depth in the JVM, ClassLoader, Java Agent, ASM, ByteBuddy, bytecode instrumentation, and performance profiling and tuning. Plus working proficiency in Python or Go.
• Substantial production experience with RASP, SAST, DAST, IAST, SCA, image security, and code scanning — enough to design a capability, integrate the engine, build the platform around it, and take it to scale independently.
• Real offensive and defensive experience. You understand the root causes, exploitation paths, detection logic, bypass techniques, and fixes for common web, API, and microservices vulnerabilities — and can design from both the attacker's and defender’s point of view.
• Fluency with LLMs and AI Agents, including a considered view on model capability limits, agent architecture, tool calling, context engineering, evaluation methods, and how AI is reshaping both security engineering and the attack surface.
• Strong engineering execution paired with product instinct — able to lead the design and delivery of security products, platform modules, and SDKs/Agents while balancing security outcomes against performance overhead, integration cost, and long-term operability.
• Exceptional ownership, cross‑team communication, and the persistence to move security governance, rule enforcement, and remediation through to a clear result.

Nice to Haves

• Security engineering experience at a top-tier internet company, cloud provider, or leading security vendor
• You’ve led the build of a DevSecOps platform, application security platform, RASP, code scanning platform, or cloud-native security platform
• Background in security product development, SDK/Agent engineering, vulnerability research, red team exercises, or purple team work
• Shipped AI + Security work — security copilots, intelligent rule generation, automated analysis, or remediation recommendation systems

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
• More that we love to tell you along the process!

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