Senior Software Engineer

Qualys·Workday
PuneFull-timePosted Jul 3, 2026
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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.

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