Come work at a place where innovation and teamwork come together to support the most exciting missions in the world! Description: We invite you to be part of a highly motivated Qualys engineering team responsible for building next-generation Runtime Security and Endpoint Protection Platform (EPP) solutions. We are seeking a talented and passionate Senior Software Engineer with strong expertise in C++ and system-level programming to work on exciting projects enabling Qualys security solutions. Working with a team of engineers and architects, you will be responsible for designing, developing, and supporting highly scalable endpoint security offerings. In this position, you will work on cutting-edge security technologies including Runtime Security, EPP/Anti-malware, runtime protection, telemetry collection, threat detection, and endpoint monitoring capabilities across multiple operating system platforms. This position offers an opportunity to solve challenging system-level problems and contribute to one of the fastest-growing R&D teams at Qualys. Responsibilities: • Takes complete ownership for successful delivery of products, components, modules, and features assigned. • Demonstrates high-quality focus and applies engineering best practices including test-driven development and code quality standards. • Develop understanding of the complete product functionality spanning endpoint agents to backend services including: End-to-end Runtime Security/EPP architecture Customer use cases & Product workflows Overall Qualys security platform integration and value proposition • Lead engineering lifecycle activities including: Design Development Code reviews Test case reviews Release support • Develop in-depth understanding of endpoint security technologies including: Runtime Security EPP / Anti-malware Runtime threat detection and prevention mechanisms • Understand operating system internals and security concepts including: Processes Threads Memory management File systems System calls Driver interactions Endpoint telemetry collection • Own new feature development including design, implementation, performance optimization, and release delivery. • Debug issues reported by QA teams or customers in production and provide effective solutions. • Collaborate with QA teams to define feature validation strategy including: Functional testing Performance testing Scalability testing Negative scenarios • Document design details and test plans as part of development activities. • Communicate and collaborate effectively with engineering teams, QA teams, architects, Product Managers, and stakeholders. Qualifications: Must Have: • Bachelor's or Master's degree in Computer Science, Electronics, Instrumentation, or equivalent. • 4+ years of software development experience with strong system-level programming background. • Strong expertise in C++ . • Strong experience in Windows development and Windows Internals. • Strong understanding of operating system concepts including: Processes Threads Synchronization Memory management IPC mechanisms • Professional experience in designing, prototyping, developing, testing, debugging, and performance profiling. • Strong debugging and problem-solving skills. • Experience developing software closer to operating system or endpoint layers. • Hands-on experience with development tools: GIT JIRA Jenkins CI/CD tools • Strong analytical and communication skills. • Passion to build a career in Runtime Security and low-level system software. Additional skills that are good to have: • Experience with endpoint security products and technologies: Runtime Security EPP Anti-malware Runtime protection technologies • Exposure to Linux internals and kernel concepts. • Exposure to macOS development and system internals. • Understanding of networking concepts and protocols including: TCP/IP DNS DHCP HTTP/HTTPS • Understanding of security concepts such as: Behavioral detections Threat hunting MITRE ATT&CK framework Threat intelligence • Exposure to Kubernetes, containers, and distributed systems. • Experience with virtualization platforms such as VMware. • Knowledge of scripting languages such as Python, Shell scripting, or PowerShell. • Working knowledge of databases such as PostgreSQL or Oracle. • Excellent analytical, debugging, and problem-solving skills. Good to Have: Working knowledge of Java and Golang with the ability to understand, debug, and contribute to codebases written in these languages. Exposure to developing backend services or distributed systems using Java and/or Golang is an added advantage. 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.

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