Logo-of-Qualys,-Inc.-hiring-for-jobs-in-India-on-GrabJobs

Lead Sustenance Engineer

icon building Company : Qualys, Inc.
icon briefcase Job Type : Full Time

Number of Applicants

 : 

000+

Click to reveal the number of candidates who applied for this job.
icon loader
Apply Now
icon loader Apply Now

Let AI Supercharge Your Job Hunt!

JobCopilot scans 500,000+ company career sites daily to find jobs for you

Never miss an opportunity Save hours by auto-filling applications forms Land more interviews with tailored applications
happy man
thunder iconActivate JobCopilot

Job Description - Lead Sustenance Engineer

Come work at a place where innovation and teamwork come together to support the most exciting missions in the world!

About the Role

We are looking for a seasoned Software Engineer – Sustenance Engineering to support and enhance our network vulnerability scanning platform. This role is ideal for someone who thrives on maintaining complex systems, resolving challenging issues, and ensuring the long-term stability, performance, and security of a mature product. You will work closely with cross-functional teams to troubleshoot, optimize, and evolve a security product that operates across low-level network and application-layer protocols.

Key Responsibilities

  • Collaborate with support for customer communication and first hand CRM reviews.
  • Maintain and enhance core components of a network vulnerability scanning engine written in C/C++.
  • Investigate, debug, and resolve complex issues in production and development environments, including networking, containerization, and system-level interactions.
  • Optimize existing code for performance, reliability, and scalability.
  • Ensure compatibility and stability across evolving environments (OS, libraries, containers).
  • Collaborate with product management, QA, DevOps, and security researchers to triage issues and deliver timely fixes and updates.
  • Participate in code reviews and contribute to improving software quality, maintainability, and security posture.
  • Support CI/CD pipelines and automation for regression testing and deployment.
  • Maintain and improve Dockerized environments for consistent deployment and testing.

Required Qualifications

  • Bachelor’s or Master’s degree in Computer Science, Software Engineering, or a related field.
  • Strong proficiency in C/C++ with a focus on systems-level programming and debugging.
  • Solid understanding of networking fundamentals (TCP/IP, sockets, HTTP, SMB, SSH, etc.).
  • Experience with Linux systems programming, performance tuning, and debugging tools (e.g., gdb, strace, perf).
  • Hands-on experience with Docker and containerized environments.
  • Strong analytical and problem-solving skills with a focus on root cause analysis and long-term fixes.

Preferred Qualifications

  • Prior experience in sustaining or support engineering roles for security or networking products.
  • Familiarity with Kubernetes and container orchestration tools.
  • Exposure to CI/CD pipelines and DevOps practices.
  • Understanding of secure coding practices and cryptographic libraries.
  • Experience with cloud platforms such as AWS, OCI, or Azure.
  • Passion for automation and scripting to reduce manual effort and improve reliability.
Original job Lead Sustenance Engineer posted on GrabJobs ©. To flag any issues with this job please use the Report Job button on GrabJobs.
Apply Now
Share Job
Share Job

Auto-Apply to Sustenance Engineer Jobs with your AI JobCopilot

thunder icon Auto-Apply with AI

Similar Sustenance Engineer Jobs in India

GrabJobs is the no1 job portal in India, connecting you to thousands of jobs fast! Find the best jobs in India, apply in 1 click and get a job today!

Mobile Apps

Copyright © 2026 Grabjobs Pte.Ltd. All Rights Reserved.