Senior Platform Engineer - House

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

We are seeking a highly motivated and talented Senior Software Engineer to work on Qualys’ next-generation Data Platform and middleware. For this position, we are looking for someone with expertise in Click House. 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.

• Brings deep expertise in Click House internals and architecture, various Click House engines, partitioning, ordering keys, indexing, and query execution.
• Design and review schemas against real-world read/write patterns, optimizing ingestion, query performance, and storage efficiency.
• Operate Click House at scale on premise or cloud, including replication, sharding, workload management, performance tuning, and production troubleshooting.
• Drive capacity planning across CPU, memory, storage I/O, and network resources, accounting for workload growth, concurrency, background merges, and reliability requirements.
• You will be responsible for engineering of services running data stored with millions of transactions per second, scaling to 100s of terabytes of data.
• You will be responsible for driving the data source and providing data platform as a service to various applications built in Qualys.
• Be the face and developer advocate of the technology stack you own and contribute back to open-source community if any enhancement needed to fit in Qualys ecosystem.
• You will be instrumenting both day 1 and day 2 operations on these data technologies keeping the 100s of thousands if not millions of operations per second.
• Migrate, burst into cloud and scale the stack with zero or least amount of downtime.
• You will be responsible for delivering resilient client SDKs to the applications to communicate with the data source you are responsible for.
• You will be constantly in the hunt for better solutions out there to resolve the current scaling, availability, and cost-effective alternative solutions.

• BS/MS degree in Computer Science, Applied Math or related field.
• Experience and expertise in Click House as outlined earlier 5+ years hands-on experience with developing SaaS based software products and solutions for service-oriented deployments in public (AWS, GCP, Azure, OCI, etc.) or private clouds.
• Proven expertise in data-driven critical thinking problem-solving
• Ability to debug systems of software and people
• Demonstrated ability to write high-quality, production-ready code (readable, well-tested, with well-designed APIs)
• Demonstrated passion for innovation with an ability to work within agile software development methodologies
• Experience with infrastructure orchestration and automation tools (Terraform)
• Hands-on experience using CI/CD pipelines
• 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.
• Knowledge of the below is a plus
• Experience with distributed systems like Cassandra, Redis, Elasticsearch, Kafka, Ceph, Flink, Spark or similar technologies
• 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 Hashi Corp 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.

The salary range for this position is $125,000 - $145,000 per year. Final compensation will be determined based on several factors, including but not limited to skills, relevant…