Senior Cassandra Engineer – Platform & SRE (8–12 Years)

About this role

<h2>Meet the Team</h2><p>We are the Webex Persistence Team within the Webex Service Engineering & SRE organization.</p><p>Our team designs, builds, and operates highly scalable persistence services powering Webex Teams, Webex Meetings, and the broader Webex Suite. We work across Webex Data Centers and AWS Cloud environments, ensuring high availability, reliability, and performance at a global scale.</p><p>As part of this team, you will work on mission-critical infrastructure and platform systems, including data, streaming, and persistence layers, with a strong focus on automation, scalability, and cloud-native engineering.</p><h2>Your Impact</h2><p>As a Senior Cassandra / DevOps Engineer, you will play a critical role in designing, operating, and optimizing large-scale Cassandra supporting Webex services.</p><p>You will help build resilient, high-performance systems and drive engineering excellence in database and infrastructure operations.</p><ul><li>Design, implement, and manage large-scale Apache Cassandra clusters in production</li><li>Optimize performance, troubleshoot issues, and ensure high availability of distributed systems</li><li>Architect and deploy Cassandra solutions on AWS (EC2, EKS, managed services) and OCP environments.</li><li>Perform capacity planning, cluster sizing, and performance tuning</li><li>Define data models including partitioning strategies, replication, and consistency levels</li><li>Collaborate with engineering teams to build high-throughput, low-latency data systems</li><li>Drive migration strategies for Cassandra to new versions.</li><li>Establish backup, recovery, and disaster recovery proces ses</li><li>Monitor system health and reliability using tools like Prometheus and Grafana</li><li>Contribute to infrastructure automation using Terraform , Automation by Ansible, and Python.</li></ul><h2>Minimum Qualifications</h2><ul><li>8+ years of hands-on experience in Apache Cassandra design, administration, and cluster management in prod

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