Qualys · 7 hours ago
Security Research Engineer
Foster City, CA
Full-time
Onsite
Mid Level
$100K/yr - $125K/yr
3+ years expQualys is a company focused on innovation and teamwork in the field of computer security. The Security Research Engineer will be responsible for researching, developing, and delivering vulnerability signatures as part of a motivated engineering team.
Enterprise SoftwareLegalSoftwareBusiness Process Automation (BPA)ComplianceSecurity
Responsibilities
Research and create signatures for the Qualys product to detect vulnerabilities in the areas of Databases, Applications, Operating systems, TCP/IP Protocols, and network devices
Research new and emerging technologies to identify vulnerabilities and exploits
Research Zero-day and actively attack vulnerabilities to create remote signatures to identify vulnerable assets
Build automation for day-to-day tasks
Closely work with customer support to troubleshoot and triage customer issues such as false positives and false negatives
Qualification
Required
BS in computer science with 3 years of experience in Information Security domain or MS in computer science or cyber security
In-depth knowledge of TCP/IP, HTTP, DNS, FTP, SSH, TLS/SSL, and SMTP protocols
Knowledge of OWASP top 10 and familiarity with other web-based attacks
Experience with scripting languages, including Python and Bash
Experience with network analysis tools, analysis of packet captures
Proficient with regular expressions
System administrator experience on Windows or Unix platforms
Strong understanding of VPN, Firewalls, Intrusion detection systems (IDS)
Excellent written and verbal communication skills
Preferred
Understanding Lua (preferred), or Java
Knowledge of Virtualization software (VMWare, Virtual PC/Virtual Box, XEN, etc.)
Knowledge of Cloud Platforms (AWS, Azure, Oracle, etc.)
Knowledge of container technologies such as Docker and Kubernetes
Able to handle projects independently
Experienced in the use of vulnerability scanners, IDS, and security tools
Experience in developing security-related tools/programs
OSCP, CISSP or SANS GIAC certifications
Benefits
Opportunities for professional development, certifications, and continuous learning.
Comprehensive and highly competitive benefits package.
Company
Qualys
Qualys is the pioneer and leading provider of information security and compliance cloud solutions.
1001-5000 employees
H1B Sponsorship
Qualys has a track record of offering H1B sponsorships. Please note that this does not
guarantee sponsorship for this specific role. Below presents additional info for your
reference. (Data Powered by US Department of Labor)
Distribution of Different Job Fields Receiving Sponsorship
Represents job field similar to this job
Trends of Total Sponsorships
2025 (62)
2024 (57)
2023 (45)
2022 (76)
2021 (57)
2020 (71)
Funding
Current Stage
Public CompanyTotal Funding
$34MKey Investors
ABS Ventures,Trident CapitalBessemer Venture Partners,VeriSign
2012-09-28IPO
2004-11-22Series C· $5.6M
2003-11-12Series B
Leadership Team
Philippe courtot
CEO
Sumedh Thakar
President & CEO
Recent News
Upfront.com
2026-02-12
2026-02-05
2026-01-07
Company data provided by crunchbase