Windows Security Engineer

Overview

Remote
$120,000 - $150,000
Accepts corp to corp applications
Contract - W2
Contract - Independent
Contract - 12 Month(s)

Skills

windows security
C++
windbg
C
Microsoft Windows

Job Details

Job Summary:
We are seeking a seasoned Advanced Security Domain Expert with deep expertise in Windows Security architecture, OS internals, and strong programming skills in C and C++. The ideal candidate will have a proven track record of designing and implementing security solutions within the Windows ecosystem, including low-level kernel and driver interactions, secure boot, credential protection, and advanced threat mitigation strategies.

Key Responsibilities:

  • Design and develop secure systems and features within the Windows OS environment, including kernel and user-mode components.
  • Analyze and reverse-engineer Windows components to identify vulnerabilities and provide mitigations.
  • Collaborate with product and security teams to architect robust and scalable security solutions.
  • Conduct threat modeling, security architecture reviews, and penetration testing of Windows-based software.
  • Develop and maintain security-related tools and utilities in C/C++.
  • Investigate and respond to security incidents, providing root cause analysis and forensic insight.
  • Stay current with emerging threats, vulnerabilities, and mitigation techniques in the Windows security domain.

Required Skills & Qualifications:

  • 10+ years of experience in systems programming, with a focus on Windows platforms.
  • Strong proficiency in C and C++, including memory management and multithreading.
  • Deep understanding of Windows internals (process/thread management, memory, registry, services, kernel mode, etc.).
  • In-depth knowledge of Windows security architecture: LSA, SAM, kernel security, UAC, Secure Boot, BitLocker, Defender, etc.
  • Experience with reverse engineering, debugging (e.g., WinDbg), and disassembly tools.
  • Knowledge of common vulnerabilities and exploit mitigation techniques on Windows platforms.
  • Familiarity with security standards and compliance (e.g., NIST, FIPS, TCG).
  • Experience writing Windows kernel-mode drivers is a strong plus.
  • Strong analytical and problem-solving skills.

Preferred Qualifications:

  • Experience working with Active Directory, Windows authentication mechanisms, or enterprise security solutions.
  • Background in malware analysis, EPP/EDR development, or secure software development lifecycle (SSDLC).
  • Contributions to open-source Windows security tools or technical whitepapers.
  • Relevant certifications such as OSCP, OSCE, CISSP, or GIAC GREM are a plus.

Quadrant Technologies is a leading IT services and solutions provider specializing in cloud computing, data analytics, AI/ML, and enterprise applications. We empower businesses with innovative technology solutions that drive digital transformation and enhance operational efficiency.
Committed to excellence and customer success, we help organizations optimize IT investments, streamline processes, and achieve strategic goals. Our team of experienced professionals ensures seamless project execution from implementation to ongoing support.
Join a dynamic, growth-driven company where innovation meets impact. Explore career opportunities with Quadrant Technologies today!

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