Principal Software Engineer

Engineering Requisition ID 3244 Pune, India


We are seeking a talented Principal Software Engineer to help build next generation Network Security product.

Working with a team of engineers and architects, you will be responsible for prototyping, designing, developing and supporting a highly scalable SaaS based Network Security product.

This is a great opportunity to be an integral part of a team building Qualys’ next generation Micro-Services based technology platform processing over a 100 million transactions and terabytes of data per day, leverage open source technologies, and work on challenging and business-impacting projects.



  • You will be building next generation of Network Security product in the cloud
  • You'll create high-performance Restful APIs to be consumed by UI, other internal and external partners
  • You will be building highly scalable Micro-services that interacts with Qualys Cloud Platform
  • Research, evaluate and adopt next generation technologies
  • Produce high quality software following good architecture and design principles that you and your team will find easy to work with in the future


  • 8+ years of experience as a hands-on developer
  • Strong Java programming skills including design, prototype, development, test, performance profiling, etc.
  • Solid understanding of JVM concepts like Garbage Collection, Heap, Stack, Profiling, parameters for fine tuning, Class Loading, etc.
  • Experience with SAAS based software products and solutions for service oriented deployment in public or private clouds. (g. Private cloud, AWS, Azure, Rackspace etc.)
  • Solid understanding of RDBMS preferably Oracle
  • Experience with SQL and NoSQL database
  • Solid understanding of Java data structures and algorithms
  • Agile Development with Scrum, WaterFall, Iterative or mix of any of them based on projects
  • Experience developing enterprise applications
  • Bachelors/Masters/Doctorate in Computer Science or equivalent


  • Experience building applications in the Network Security Space 
  • Experience with stream processing frameworks such as Apache Samza, Spark or Storm

EEO Employer/Vet/Disabled