Cassandra Administrator

Webhosting; Northern (KY); On-site; USD 120,000 - 170,000; Full time

Job summary

DigiCert is seeking an Apache Cassandra Administrator to design, automate, build, operate, and enhance distributed Cassandra services supporting customer-facing SaaS platforms. You will collaborate with a global team to create highly available and scalable databases with strong focus on performance, resilience, monitoring, and disaster recovery in large-scale environments.

The role emphasizes managing multi-datacenter clusters, implementing replication and consistency strategies, and providing

Qualifications

• 3+ years administering Apache Cassandra in production environments.
• Strong understanding of distributed systems concepts (replication, partitioning, consistency).
• Experience with Cassandra architecture, internals, and data modeling.
• Expertise in performance tuning (compaction, JVM, GC tuning).
• Experience managing multi-node, multi-datacenter clusters.
• Strong Linux systems administration knowledge.
• Cloud platform experience (AWS, Azure, or GCP).
• Strong troubleshooting and incident response skills.

Responsibilities

• Design, deploy, and manage Apache Cassandra clusters across multi-datacenter environments.
• Build highly available, fault-tolerant distributed database architectures.
• Perform capacity planning, scaling, and performance tuning for Cassandra workloads.
• Implement replication strategies, consistency levels, and data distribution models.
• Monitor cluster health using tools such as Prometheus, Grafana, or Splunk.
• Troubleshoot node failures, latency, compaction, and data consistency issues.
• Develop automation using Terraform, Salt Stack, Ansible, or similar tools.
• Support migrations from legacy databases to Cassandra-based solutions.
• Collaborate with engineering teams on schema design and workload optimization.
• Provide on-call support and participate in rotating shifts as needed.

Skills

Cassandra administration

Distributed systems

Performance tuning

Multi-datacenter clusters

Linux

Cloud platforms

Troubleshooting

Terraform

Ansible

Monitoring tools

Tools

Terraform

Salt Stack

Ansible

Job description

Job Description

Who we are

DigiCert is a global leader in intelligent trust. We protect the digital world by ensuring the security, privacy, and authenticity of every interaction. Our AI-powered DigiCert ONE platform unifies PKI, DNS, and certificate lifecycle management, to secure infrastructure, software, devices, messages, AI content and agents. Learn why more than 100,000 organizations, including 90% of the Fortune 500, choose DigiCert to stop today’s threats and prepare for a quantum-safe future at www.digicert.com

Job summary

The Apache Cassandra Administrator will collaborate with a global team of database engineers to design, automate, build, operate, and continuously enhance distributed Cassandra services supporting customer-facing SaaS platforms. Responsibilities include building highly available, scalable, and secure database solutions with strong focus on performance, resilience, monitoring, and disaster recovery in large-scale distributed environments.

What you will do

• Design, deploy, and manage Apache Cassandra clusters across multi-datacenter environments.
• Build highly available, fault-tolerant distributed database architectures.
• Perform capacity planning, scaling, and performance tuning for Cassandra workloads.
• Implement replication strategies, consistency levels, and data distribution models.
• Monitor cluster health using tools such as Prometheus, Grafana, or Splunk.
• Troubleshoot node failures, latency, compaction, and data consistency issues.
• Develop automation using Terraform, Salt Stack, Ansible, or similar tools.
• Support migrations from legacy databases to Cassandra-based solutions.
• Collaborate with engineering teams on schema design and workload optimization.
• Provide on-call support and participate in rotating shifts as needed.

What you will have

• 3+ years administering Apache Cassandra in production environments.
• Strong understanding of distributed systems concepts (replication, partitioning, consistency).
• Experience with Cassandra architecture, internals, and data modeling.
• Expertise in performance tuning (compaction, JVM, GC tuning).
• Experience managing multi-node, multi-datacenter clusters.
• Strong Linux systems administration knowledge.
• Cloud platform experience (AWS, Azure, or GCP).
• Strong troubleshooting and incident response skills.