Q

Qualys

Cloud-based vulnerability management and compliance platform

Lead Security Research Engineer

Offensive Security & TestingConfirmed live in the last 24 hours
Full-timePune, Maharashtra, IndiaNo salary listedIn-person

About the Job

Requirements

  • A bachelor's degree in a relevant field or equivalent experience.
  • At least 8 years of hands-on experience in vulnerability research, penetration testing, detection engineering, or security research.
  • Deep understanding of TCP/IP, HTTP/HTTPS, FTP, SSH, SMTP, DNS, SSL/TLS, and modern web protocols.
  • Strong expertise in vulnerability analysis, exploit development, and attack techniques.
  • Extensive knowledge of operating systems, databases, web technologies, cloud environments, and enterprise infrastructure.
  • A strong coding background.
  • Experience with packet analysis, network troubleshooting, and protocol reverse engineering.
  • Knowledge of the OWASP Top 10, common attack techniques, and modern threat actor tactics.
  • Strong written, verbal, and technical communication skills.
  • Demonstrated experience leading projects and mentoring technical teams.

Responsibilities

  • Lead vulnerability research initiatives across operating systems, databases, enterprise applications, cloud services, container platforms, and network devices.
  • Research newly disclosed, N-day, and actively exploited vulnerabilities.
  • Lead the development of exploit-based exposure validation techniques to confirm the real-world exploitability of vulnerabilities.
  • Review technical designs, research methodologies, and code contributions to ensure quality and consistency.
  • Partner with Engineering and Product teams to influence roadmap decisions and security content strategy.
  • Design safe and controlled validation mechanisms that emulate attacker behavior without affecting production systems.
  • Analyze vulnerability root causes, attack vectors, exploitability conditions, and potential business impact.
  • Mentor and guide Security Research Engineers on vulnerability analysis, exploit analysis, and signature creation.
  • Build validation logic to determine whether existing security controls such as web application firewalls, firewalls, endpoint detection and response systems, intrusion prevention systems, and compensating controls effectively prevent exploitation.
  • Drive automation initiatives for vulnerability research, exploit validation, content generation, testing, and release processes.
  • Establish best practices, coding standards, and quality guidelines for signature development.

Desired Qualifications

  • Understanding of Lua, Bash, or Python.
  • Knowledge of cloud platforms such as Amazon Web Services, Azure, or Oracle.
  • Proficiency with regular expressions.
  • Knowledge of container technologies such as Docker and Kubernetes.
  • Experience using vulnerability scanners, intrusion detection systems, and security tools.
  • Possession of OSCP, CISSP, or SANS GIAC certifications.

About the Company

Qualys

Cloud-based vulnerability management and compliance platform

Qualys provides cloud-based cybersecurity and compliance solutions that help organizations secure their IT infrastructure. It offers vulnerability management, policy compliance, web application security, and IT asset management through the Qualys Cloud Platform, enabling continuous monitoring, automated checks, policy enforcement, and real-time compliance reporting. It differentiates itself with real-time analytics, automated workflows, and a scalable cloud architecture that unify multiple security and compliance functions in one ecosystem across on-premises, cloud, and hybrid environments. Its goal is to help organizations continuously assess risk, automate security processes, and demonstrate compliance across their entire IT footprint.

Company size
1,001-5,000
Company stage
IPO
Headquarters
Redwood City, CA
Founded
1999

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