App Sec Engineer: Reverse Engineering & Vulnerabilities (8m)

Valiant Technologies LLC; Weehawken (NJ); On-site; USD 96,000 - 131,000; Full time

Job summary

Valiant Technologies LLC is seeking an Application Security Engineer to focus on in-depth software security analysis, especially of third-party applications via a primarily Windows environment with some Linux. The role emphasizes building foundational security reasoning from first principles and requires strong reverse engineering capabilities.

The position involves hands-on work, collaboration with internal teams, and the ability to explain complex concepts clearly.

Qualifications

• Deep understanding of low-level computer fundamentals across OSes.
• Hands-on experience with hardware/OS concepts or performance analyses.
• Experience with emulation/virtualization and testing (e.g., QEMU).

Responsibilities

• Perform reverse engineering on binaries and analyze networks to uncover vulnerabilities and exfiltration.
• Familiarity with reverse engineering tools; building custom tooling aligns with the role.
• Ensure software complies with internal security guidelines and policies.
• Collaborate with domain experts, platform teams, support, and end users to deliver findings and practical mitigations.

Skills

Low-level systems knowledge

Reverse engineering

Binary Ninja familiarity

Tools

Binary Ninja

Job description

Valiant Technologies LLC is seeking an Application Security Engineer to focus on in-depth software security analysis, especially of third-party applications via a primarily Windows environment with some Linux. The role emphasizes building foundational security reasoning from first principles and requires strong reverse engineering capabilities.

The position involves hands-on work, collaboration with internal teams, and the ability to explain complex concepts clearly.