Principal Software Engineer

Engineering Requisition ID 4396 Pune, India



We are seeking a highly motivated and talented Principal Software Engineer to work on Qualys’ next-generation phishing and email security platform. Working alongside a very talented team of engineers and architects, you will be responsible for prototyping, designing, developing and supporting a highly scalable SaaS based platform. This is a great opportunity to be a key initial contributor in building and bringing an innovative product to the market.


  • Co-develop with a strong sense of ownership Qualys’ phishing and email security platform and bring to market.
  • Work closely with engineering teams, product management and operations to deliver high value  for Qualys customers.
  • Produce high quality software following good architecture and design principles that you and your team will find easy to work with in the future.


  • 12+ years hands-on experience with developing SaaS based software products and solutions.
  • Strong Java programming skills including object-oriented design, prototyping, development, testing, profiling, etc.
  • Knowledge of JVM concepts like garbage collection, heap, stack, profiling, class loading, etc.
  • Good c++ / linux programming knowledge
  • Prior experience with RDBMS systems and NoSQL databases.
  • Good hands on experience with system architecture.
  • Strong in data structures and algorithms.
  • Strong analytical and debugging skills.
  • Ability to clearly articulate and communicate technical concepts within and across teams.
  • Ability to mentor and lead team.
  • BS/MS degree in Computer Science, Applied Math or related field.

Bonus Points if you have:

  • Experience in building enterprise grade cybersecurity products.
  • Experience in working with networking, authentication and cloud APIs.
  • Experience in using API interfaces for Office 365, Microsoft Exchange, Google apps, Active directory etc.
  • Building big data systems using Cassandra, Redis, Elasticsearch, Kafka, Flink, Spark or similar technologies
  • Experience with container and orchestration technologies such as Docker, Kubernetes etc.
  • Experience with JavaScript libraries like ReactJS or Angular



EEO Employer/Vet/Disabled