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# Endpoint Security Software Engineer, C++/PC Windows - USDS

- **Company:** Tiktok Inc.
- **Location:** San Jose, CA, United States
- **Experience:** Expert
- **Salary:** $122,574.0 - $259,200.0
- **Contract:** Permanent contract
- **Skills:** .NET Framework, Microsoft Windows, Application Programming Interfaces (APIs), Business Logic, C++ (Programming Language), Protocol Stack, Software Debugging, DevOps, Dynamic-Link Libraries, Design of User Interfaces, Windows API, Network Control, Qt (Software), Security Software, WinDBg, Windows Desktop, Large Language Models, Generative AI, Information Technology, Vulnerability Analysis
- **Published:** June 5, 2026
- **Apply:** https://www.indeed.com/viewjob?jk=9cffd94b6e708523

## About the Role

Do you have experience in Windows?, Do you have a Bachelor's degree?, Minimum Qualifications - BS/MS degree in Computer Science, Engineering, or a related field. - 5+ years of experience in Windows application development, specifically using Electron, QT, or native frameworks. - Deep Technical Expertise: Proficiency in C/C++, .NET, Win32 API, and UWP/WinUI. - System Knowledge: Familiarity with Windows frameworks, networking, and dynamic-link libraries (DLLs). Preferred Qualifications - Experience with generative AI tools to assist in the porting and analysis of complex business logic. - Knowledge of UI/UX design principles for creating intuitive desktop administration tools. - Strong understanding of DevOps practices for Windows-based software distribution.

## Description

About the team The Security Engineering team is missioned to run and operate security infrastructures, platforms and technologies, as well as to support cross-functional teams to protect our users, products and infrastructures. This team is responsible for enhancing security tools and identifying vulnerabilities, with a specific focus on content assurance and the application of large language models (LLMs). You'll collaborate cross-functionally with partners inside and outside TikTok to fortify our products and users' security, helping to establish TikTok as the most trusted platform. Responsibilities We are seeking a Software Engineer to be a core contributor to our Windows Desktop security suite. In this role, you will be responsible for the architecture of a high-performance AppGuard solution tailored for Windows, utilizing low-level APIs to monitor and secure application traffic. You will apply your expertise in Windows internals to build a robust engine capable of executing
complex DSL-based security rules. - System-Level Development: Design and implement security features using C/C++, .NET, and the Win32 API. - Traffic & Network Control: Develop deep integration with the Windows network stack to monitor, sample, and cut-off egress/ingress traffic. - Advanced Debugging: Leverage tools such as WPR, IDA, WinDbg, and x64dbg to troubleshoot complex system behaviors and ensure stability. - Infrastructure Support: Participate in the development of tools for profiling, testing, and operational monitoring of the PC sandbox. - Drive Strategic Design: Translate complex business requirements into high-performance technical solutions.


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