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Come work at a place where innovation and teamwork come together to support the most exciting missions in the world! Qualys, a leading cybersecurity firm, is seeking an experienced Lead/Senior Technical Support Engineer for Security Applications to promptly resolve global customer and partner service requests. Collaborate across teams for high customer satisfaction in a secure environment. Ideal for security enthusiasts with solid networking skills. Lead in resolving technical issues, provide top-tier support, and contribute to world-class assistance. Responsibilities: Promptly resolve global customer and partner service requests in a highly secure environment. Collaborate with cross-functional teams for high customer satisfaction. Provide support via phone, email, and MS Teams for Product modules over the SaaS platform. Ensure friendly, professional customer interactions throughout the service lifecycle. Act as the main point of contact for technical issues, collaborating directly with Development and QA teams. Thrive in a challenging and dynamic environment, delivering world-class support and technical solutions. Qualifications: 5+ years of technical support experience. Experience in Vulnerability Management and Web Application Security/Firewall application support. In-depth TCP/IP understanding and LAN/WAN infrastructure knowledge. Strong foundation in Windows and/or solid Linux/Unix experience in an enterprise environment. Familiarity with common OS services (IIS, BIND, Apache, AD, WINS, Samba, SSH). Knowledge of firewalls, Intrusion Detection System technologies, and Network Vulnerability Scanners. Outstanding troubleshooting and analytical skills. Excellent written and verbal communication skills. Bachelor of Science in Computer Science or equivalent experience. Networking: OSI Layer understanding. Knowledge of broadcast domain vs. collision domain. Familiarity with different records zones in DNS and how it works. Understanding of SSL Handshake and TCP/IP Handshake. Proficiency in ARP, DHCP, proxy servers, and DNS cache clearing. Differentiation between TCP and UDP, and protocols & their workings. Linux/Unix: Understanding of the boot process and run levels. Various ways to assign an IP address to a Unix/Linux/Debian machine. Proficient in checking running processes, hidden files, and installing packages. Knowledge of sudo, permissions, file systems, and SSH banner. Windows: Insight into the Windows boot process and control panel basics. Understanding of UAC, registry hives, and remote registry manipulation tools. Knowledge of kernel mode vs. user mode, Active Directory, and Group Policies. Familiarity with Kerberos and NTLM authentication, Procmon, and the service control manager. Security: Understanding of vulnerabilities, the vulnerability cycle, and exploits. Knowledge of malware types (virus, trojan, worm) and False/True Positive/Negative concepts. Understanding of False Positive, False Negative, True Positive, and True Negative in the security context. Preferred: Experience with Kubernetes, containers, Cloud services, packet capture review, and diagnosis. Previous API support and Regex knowledge. Scripting experience (Bash, Python). Knowledge of major web server software, UNIX/Windows web services, and diverse platforms. Oracle and Microsoft SQL knowledge. CCNA, MCSE, CISSP, CompTIA Security+, and CEH certifications are highly desirable. Experience with Customer Support and Development Tools (Salesforce, Jira, etc.). Willing to work in 24/7 rotational shifts. Join our talent community and receive the latest Qualys news, content, and be first in line for new job opportunities. Join our Talent Community! Qualys, Inc. (NASDAQ: QLYS) is a pioneer and leading provider of disruptive cloud-based security, compliance and IT solutions with more than 10,000 subscription customers worldwide, including a majority of the Forbes Global 100 and Fortune 100. Qualys helps organizations streamline and automate their security and compliance solutions onto a single platform for greater agility, better business outcomes, and substantial cost savings. .
Here's how to pick the right one and stand out in your application.
144.883Jobs
31.687IN
81%EN
That number is real. WorkMundi's database shows 144,883 open engineer roles across the world. India has the most with 31,687 jobs, followed by the United States with 30,084. If you just finished reading one job ad and felt paralyzed by choice, you're not alone—but this scale is actually an advantage. It means you can afford to be selective.
Start by geography and language. The majority of engineer ads—117,837 of them—have the job posting text written in English. Use that as one filter, but remember: the ad text language tells you nothing about whether the role actually requires you to speak English day-to-day. Read the job description carefully. Then check which countries have the volume you're targeting. Singapore, Poland, and Australia round out the top five after India and the US.
Next, learn who's hiring. Accenture has posted 2,801 engineer roles. andurilindustries, speechify, and jobgether are also actively recruiting. If you're applying to one of these names, research their hiring patterns and interview style before you apply. That homework pays off.
When you interview, expect the question every engineer hears: 'Tell me about a time you had to debug a problem that wasn't in your job description.' Have a specific story ready—not a general one. Name the tools, the deadline pressure, and what you learned. Hiring managers listen for whether you see problem-solving as part of the role itself, not a favour.