Game Security Engineer – Anti-Cheat & Windows OS

KRAFTON Americas; El Segundo (CA); On-site; USD 146,000 - 200,000; Full time

Benefits offered by this job

Reasonable Accommodation

Job summary

KRAFTON Americas is seeking a skilled Windows-based security engineer to develop KSS Anti-Cheat and client security features for game environments in California.

You will analyze Windows internals, memory, processes, and system calls, and implement robust client-side protections with a focus on stability and low false positives.

Join a team expanding secure gaming platforms and collaborate across studios to deliver trusted gameplay experiences.

Qualifications

• Experience developing Windows-based client software.
• Strong understanding of Windows internals (processes, threads, memory).
• Ability to analyze disassembled x64 assembly.
• Knowledge of OS concepts: kernels, drivers, system calls.
• Security-focused mindset to mitigate bypass methods.
• Experience in performance optimization for game security.

Responsibilities

• Develop C++-based game security / Anti-Cheat client modules
• Detect and respond to cheat behaviors such as client tampering, memory manipulation, code injection, hooking, debugging, and automation tools
• Design and implement user-mode and kernel-mode security features
• Conduct security analysis based on Windows internals and OS behavior, including processes, threads, memory, drivers, and system calls
• Review and improve the stability, performance, and false-positive risk of security detection logic
• Analyze new cheat and attack techniques and research defensive technologies
• Provide technical support and improvements to ensure KSS security features are reliably applied across various game environments

Skills

Windows familiarity

C++ programming

Anti-Cheat security

OS fundamentals

x64 assembly

System calls

Tools

IDA

Ghidra

WinDbg

x64dbg

Job description

KRAFTON Americas is seeking a skilled Windows-based security engineer to develop KSS Anti-Cheat and client security features for game environments in California.

You will analyze Windows internals, memory, processes, and system calls, and implement robust client-side protections with a focus on stability and low false positives.

Join a team expanding secure gaming platforms and collaborate across studios to deliver trusted gameplay experiences.