Senior Software Engineer
qualys/careers
Pune
Posted Sep 11, 2026
- Full-time
Job description
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 Golang 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. • 8–10+ years of software development experience with strong system-level programming background. • Strong expertise in C++ and Golang. • 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.