Qualys

Lead Security Engineer

India · Work style not stated · Full time

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About the role

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EmployerQualys
LocationIndia
Work styleWork style not stated
Employment typeFull time
Employer posted17 Jul 2026

Come work at a place where innovation and teamwork come together to support the most exciting missions in the world!

As a Lead Engineer, Security Signatures you will be part of a Qualys Threat Research Unit that is responsible for the research, development, and delivery of emergent vulnerability signatures. This opening is your opportunity to work ona unique security solution inthe rapidly expanding fields of penetration testing, vulnerability assessments and cyber security.

Responsibilities

Research and create signatures for the Qualys product to detect vulnerabilities in Industrial Control Systems.

Research new and emerging technologies to identify vulnerabilities and exploits.

Research zero-day and actively attack vulnerabilities to create signatures to identify vulnerable assets.

Build automation for day-to-day tasks.

Qualifications

Experience and strong knowledge in penetration testing and vulnerability management.

Show full description

Knowledge and hands on experience with several types of security vulnerabilities and attacks such as cross-site scripting, privilege escalation, remote code execution.

Proficient with regular expressions.

Bachelor's in computer science with 5+ years of experience in Information Security domain or Masters in Computer Science or Cyber Security.

In-depth knowledge of TCP/IP, HTTP, DNS, FTP, SSH, TLS/SSL, and SMTP protocols.

Experience with scripting languages, including Python and Bash.

Experience with network analysis tools, analysis of packet captures.

System administrator experience on Windows or Unix platforms.

Excellent written and verbal communication skills.

Additional Plus Competencies

Understanding of Lua (preferred), or Python

Knowledge of Virtualization software (VMWare, Virtual PC/Virtual Box, XEN, etc.).

Knowledge of container technologies such as Docker and Kubernetes.

Able to handle projects independently.

Experienced in the use of vulnerability scanners, IDS, and multiple security tools.

Experience in developing security-related tools/programs.

OSCP and similar certifications.

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