23 hours ago
Seoul, Korea, SouthSenior
Responsibilities
- Develop C++-based game security and Anti-Cheat client modules.
- Detect and respond to game client tampering, memory manipulation, code injection, hooking, debugging, and automation tools.
- Design and implement user-mode and kernel-mode security features.
- Analyze Windows internals, including processes, threads, memory, drivers, and system calls, to identify security threats.
- Review and improve detection logic for stability, performance, and false-positive risks.
- Analyze new cheating and attack techniques and research defensive technologies.
- Provide technical support and improvements for deploying KSS security features across diverse game environments.
Requirements
- Demonstrated C++ software development ability.
- Experience developing Windows client software or equivalent understanding.
- Understanding of Windows internals, including processes, threads, virtual memory, synchronization, DLLs, and PE structures.
- Ability to understand x64 Assembly and analyze disassembled code.
- Understanding of operating-system concepts including kernels, drivers, system calls, interrupts, and memory management.
- Basic knowledge of computer architecture, CPU operation, memory structure, and executable loading.
- Ability to analyze problems from a security perspective and design with bypass possibilities in mind.
- No restrictions preventing overseas business travel.
- Preferred: experience developing Anti-Cheat, DRM, EDR, security solutions, or client protection technologies.
- Preferred: Windows Kernel Driver development experience.
- Preferred: understanding of x86/x64 Assembly, calling conventions, exception handling, and debugging techniques.
- Preferred: experience using IDA, Ghidra, WinDbg, or x64dbg.
- Preferred: understanding of code injection, API Hooking, Manual Mapping, DKOM, Rootkit, Anti-Debugging, and Anti-Tamper techniques.
- Preferred: understanding of TPM, Secure Boot, VBS, and HVCI.
- Preferred: experience operating security features reliably in large-scale live-game environments.
- Preferred: low-level systems programming experience considering performance, stability, and compatibility.
Benefits
- Full-time employment, subject to adjustment based on negotiated candidate terms.
- Work location: Yeoksam Centerfield.
- A five-month probationary period applies; employment type and salary do not change during probation, and employment may be ended based on evaluation.
- Portfolio submission is required, and relevant security, systems, or reverse-engineering project materials may be included.
- People eligible for employment protection under applicable laws, including persons with disabilities and distinguished service recipients, receive preference.
About KRAFTON
KRAFTON is a Seoul-based, KRX-listed video game company that develops and publishes PC, console, and mobile titles. Its studios include PUBG Studios, Bluehole Studio, Striking Distance Studios, and Unknown Worlds, best known for the PUBG: Battlegrounds franchise (and PUBG Mobile with Tencent) and games like Subnautica and TERA. The company monetizes through premium sales and live-service content across global markets.