Principal Software Engineer

Engineering Requisition ID 3091 Pune, India


We are seeking a highly motivated and talented Principal Software Engineer to work on Qualys’ next-generation data platform and middleware. 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 cloud security data platform. This is a great opportunity to be an integral part of a team building Qualys’ next generation microservices 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.


  • Co-develop with a strong sense of ownership Qualys’ big-data platform that scales to meet/exceed the demands of processing over a 100 million transactions and terabytes of data per day. Architecture, performance, scalability, high availability and security will be your primary goals for delivering a first-rate experience to our customers.
  • Work closely with engineering teams, product management and operations to provide platform and infrastructure features and components to support Qualys’ business objectives.
  • 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 for service-oriented deployments in public (AWS, GCP, Azure, etc.) or private clouds.
  • Prior experience with RDBMS systems and NoSQL databases.
  • Good hands on experience with system architecture.
  • Data platform design / build utilizing Cassandra, Redis, Elasticsearch, Kafka, Ceph, Flink, Spark or similar technologies
  • Strong analytical and debugging skills.
  • 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.
  • Strong in data structures and algorithms.
  • 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:

  • Built a data platform from the ground up.
  • Experience with applying data encryption and data security standards.
  • Experience with container and orchestration technologies such as Docker, Kubernetes etc.
  • Experience with monitoring tools such as Graphite, Grafana and Prometheus.
  • Experience with HashiCorp technologies such as Consul, Vault, Terraform and Vagrant.
  • Experience with configuration management tools such as Chef, Puppet or Ansible.
  • In-depth experience with continuous integration and continuous deployment pipelines.
  • Exposure to Maven, Ant or Gradle for builds.


EEO Employer/Vet/Disabled