OpenSearch Administrator

Webhosting; Northern (KY); On-site; USD 90,000 - 160,000; Full time

Job summary

DigiCert is seeking an experienced OpenSearch Administrator to design, implement, maintain, and optimize our OpenSearch environments that power our global SaaS platforms. You will collaborate with a global team to ensure secure, scalable search infrastructure and reliable indexing services across services and regions.

As part of a fast-paced environment, you will handle security hardening, backups, performance tuning, and on-call coverage with rotating weekend shifts to maintain high

Qualifications

• 3+ years of hands-on experience administering OpenSearch clusters.
• Strong understanding of OpenSearch architecture and core concepts.
• Experience with OpenSearch Dashboards, Logstash-compatible pipelines, and OpenSearch Data Prepper.
• Proficiency in Linux/Unix and shell scripting.
• Knowledge of JVM tuning and garbage collection optimization.
• Experience with monitoring tools (OpenSearch Dashboards, Prometheus, Grafana).
• Familiarity with Docker and Kubernetes.
• Strong troubleshooting and problem-solving abilities.
• Excellent verbal and written communication skills.
• Ability to work in a fast-paced environment with strict deadlines.

Responsibilities

• Monitor cluster health, performance, and resource utilization.
• Implement security best practices including authentication, authorization, and encryption.
• Develop backup and recovery strategies for OpenSearch clusters.
• Troubleshoot and resolve complex OpenSearch issues.
• Perform cluster upgrades and patches with minimal downtime.
• Optimize query performance and data indexing strategies.
• Collaborate with development teams to implement efficient search solutions.
• Create and maintain documentation for OpenSearch configurations and procedures.
• Provide on-call support and weekend coverage as needed.

Skills

OpenSearch administration

Cluster monitoring

Troubleshooting

Communication

Team collaboration

On-call support

Tools

OpenSearch Dashboards

Logstash pipelines

OpenSearch Data Prepper

Linux/Unix

Shell scripting

JVM tuning

Prometheus

Grafana

Docker

Kubernetes

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

We are seeking an experienced OpenSearch Administrator with 3+ years of hands-on experience to join our team. The ideal candidate will be responsible for the design, implementation, maintenance, and optimization of our OpenSearch environments. You will collaborate with a global team of administrators to design, automate, build, operate, and continuously enhance the indexing services that support our customer-facing SaaS products.

What you will do

• Monitor cluster health, performance, and resource utilization.
• Implement security best practices including authentication, authorization, and encryption.
• Develop backup and recovery strategies for OpenSearch clusters.
• Troubleshoot and resolve complex OpenSearch issues.
• Perform cluster upgrades and patches with minimal downtime.
• Optimize query performance and data indexing strategies.
• Collaborate with development teams to implement efficient search solutions.
• Create and maintain documentation for OpenSearch configurations and procedures.
• Implement high-availability and disaster recovery solutions.
• Act as a backup for other team members when necessary.
• Provide on-call support and working off-hours as needed to ensure reliability and availability.
• Bi-weekly rotating shifts are necessary to ensure coverage during weekends.

What you will have

• 3+ years of hands-on experience administering OpenSearch clusters.
• Strong understanding of OpenSearch architecture and core concepts.
• Experience with OpenSearch Dashboards, Logstash-compatible pipelines, and OpenSearch Data Prepper.
• Proficiency in Linux/Unix operating systems and shell scripting.
• Knowledge of JVM tuning and garbage collection optimization.
• Experience with monitoring tools for OpenSearch (e.g., OpenSearch Dashboards, Prometheus, Grafana).
• Familiarity with containerization technologies (Docker, Kubernetes).
• Strong troubleshooting and problem-solving skills.
• Excellent verbal and written communication abilities.
• Ability to thrive in a fast-paced environment working on projects against strict deadlines.
• Ability to work collaboratively with cross-functional teams, including developers, system reliability engineers and other business units.
• Ability to diagnose and troubleshoot user facing service incidents & outages.