OpenSearch Administrator

<div class="content-intro"><p style="line-height: 1.4;"><span style="color: rgb(0, 0, 0); font-family: arial, helvetica, sans-serif; font-size: 12pt;"><strong>Who we are</strong></span></p> <p style="line-height: 1.4;"><span style="font-family: arial, helvetica, sans-serif; font-size: 12pt;">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&nbsp;<a href="http://www.digicert.com/">www.digicert.com</a></span></p></div><p><span style="font-family: arial, helvetica, sans-serif; font-size: 12pt;"><strong>Job summary</strong></span></p> <p><span style="font-family: arial, helvetica, sans-serif; font-size: 12pt;">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.</span></p> <p>&nbsp;</p> <p><span style="font-family: arial, helvetica, sans-serif; font-size: 12pt;"><strong>What you will do</strong></span></p> <ul> <li style="font-family: arial, helvetica, sans-serif; font-size: 12pt;"><span style="font-family: arial, helvetica, sans-serif; font-size: 12pt;">Monitor cluster health, performance, and resource utilization.</span></li> <li style="font-family: arial, helvetica, sans-serif; font-size: 12pt;"><span style="font-family: arial, helvetica, sans-serif; font-size: 12pt;">Implement security best practices including authentication, authorization, and encryption.</span></li> <li style="font-family: arial, helvetica, sans-serif; font-size: 12pt;"><span style="font-family: arial, helvetica, sans-serif; font-size: 12pt;">Develop backup and recovery strategies for OpenSearch clusters.</span></li> <li style="font-family: arial, helvetica, sans-serif; font-size: 12pt;"><span style="font-family: arial, helvetica, sans-serif; font-size: 12pt;">Troubleshoot and resolve complex OpenSearch issues.</span></li> <li style="font-family: arial, helvetica, sans-serif; font-size: 12pt;"><span style="font-family: arial, helvetica, sans-serif; font-size: 12pt;">Perform cluster upgrades and patches with minimal downtime.</span></li> <li style="font-family: arial, helvetica, sans-serif; font-size: 12pt;"><span style="font-family: arial, helvetica, sans-serif; font-size: 12pt;">Optimize query performance and data indexing strategies.</span></li> <li style="font-family: arial, helvetica, sans-serif; font-size: 12pt;"><span style="font-family: arial, helvetica, sans-serif; font-size: 12pt;">Collaborate with development teams to implement efficient search solutions.</span></li> <li style="font-family: arial, helvetica, sans-serif; font-size: 12pt;"><span style="font-family: arial, helvetica, sans-serif; font-size: 12pt;">Create and maintain documentation for OpenSearch configurations and procedures.</span></li> <li style="font-family: arial, helvetica, sans-serif; font-size: 12pt;"><span style="font-family: arial, helvetica, sans-serif; font-size: 12pt;">Implement high-availability and disaster recovery solutions.</span></li> <li style="font-family: arial, helvetica, sans-serif; font-size: 12pt;"><span style="font-family: arial, helvetica, sans-serif; font-size: 12pt;">Act as a backup for other team members when necessary.</span></li> <li style="font-family: arial, helvetica, sans-serif; font-size: 12pt;"><span style="font-family: arial, helvetica, sans-serif; font-size: 12pt;">Provide on-call support and working off-hours as needed to ensure reliability and availability.</span></li> <li style="font-family: arial, helvetica, sans-serif; font-size: 12pt;"><span style="font-family: arial, helvetica, sans-serif; font-size: 12pt;">Bi-weekly rotating shifts are necessary to ensure coverage during weekends.</span></li> </ul> <p>&nbsp;</p> <p><span style="font-family: arial, helvetica, sans-serif; font-size: 12pt;"><strong>What you will have</strong></span></p> <ul> <li style="font-family: arial, helvetica, sans-serif; font-size: 12pt;"><span style="font-family: arial, helvetica, sans-serif; font-size: 12pt;">3+ years of hands-on experience administering OpenSearch clusters.</span></li> <li style="font-family: arial, helvetica, sans-serif; font-size: 12pt;"><span style="font-family: arial, helvetica, sans-serif; font-size: 12pt;">Strong understanding of OpenSearch architecture and core concepts.</span></li> <li style="font-family: arial, helvetica, sans-serif; font-size: 12pt;"><span style="font-family: arial, helvetica, sans-serif; font-size: 12pt;">Experience with OpenSearch Dashboards, Logstash‑compatible pipelines, and OpenSearch Data Prepper.</span></li> <li style="font-family: arial, helvetica, sans-serif; font-size: 12pt;"><span style="font-family: arial, helvetica, sans-serif; font-size: 12pt;">Proficiency in Linux/Unix operating systems and shell scripting.</span></li> <li style="font-family: arial, helvetica, sans-serif; font-size: 12pt;"><span style="font-family: arial, helvetica, sans-serif; font-size: 12pt;">Knowledge of JVM tuning and garbage collection optimization.</span></li> <li style="font-family: arial, helvetica, sans-serif; font-size: 12pt;"><span style="font-family: arial, helvetica, sans-serif; font-size: 12pt;">Experience with monitoring tools for OpenSearch (e.g., OpenSearch Dashboards, Prometheus, Grafana).</span></li> <li style="font-family: arial, helvetica, sans-serif; font-size: 12pt;"><span style="font-family: arial, helvetica, sans-serif; font-size: 12pt;">Familiarity with containerization technologies (Docker, Kubernetes).</span></li> <li style="font-family: arial, helvetica, sans-serif; font-size: 12pt;"><span style="font-family: arial, helvetica, sans-serif; font-size: 12pt;">Strong troubleshooting and problem-solving skills.</span></li> <li style="font-family: arial, helvetica, sans-serif; font-size: 12pt;"><span style="font-family: arial, helvetica, sans-serif; font-size: 12pt;">Excellent verbal and written communication abilities.</span></li> <li style="font-family: arial, helvetica, sans-serif; font-size: 12pt;"><span style="font-family: arial, helvetica, sans-serif; font-size: 12pt;">Ability to thrive in a fast-paced environment working on projects against strict deadlines.</span></li> <li style="font-family: arial, helvetica, sans-serif; font-size: 12pt;"><span style="font-family: arial, helvetica, sans-serif; font-size: 12pt;">Ability to work collaboratively with cross-functional teams, including developers, system reliability engineers and other business units.</span></li> <li style="font-family: arial, helvetica, sans-serif; font-size: 12pt;"><span style="font-family: arial, helvetica, sans-serif; font-size: 12pt;">Ability to diagnose and troubleshoot user facing service incidents &amp; outages.</span></li> </ul> <p>&nbsp;</p> <p><span style="font-family: arial, helvetica, sans-serif; font-size: 12pt;"><strong>Nice to have</strong></span></p> <ul> <li style="font-family: arial, helvetica, sans-serif; font-size: 12pt;"><span style="font-family: arial, helvetica, sans-serif; font-size: 12pt;">OpenSearch certification.</span></li> <li style="font-family: arial, helvetica, sans-serif; font-size: 12pt;"><span style="font-family: arial, helvetica, sans-serif; font-size: 12pt;">Experience with cloud‑based OpenSearch deployments (AWS OpenSearch Service, GCP, Azure).</span></li> <li style="font-family: arial, helvetica, sans-serif; font-size: 12pt;"><span style="font-family: arial, helvetica, sans-serif; font-size: 12pt;">Experience with monitoring tools and techniques (e.g., New Relic, Splunk, etc.).</span></li> <li style="font-family: arial, helvetica, sans-serif; font-size: 12pt;"><span style="font-family: arial, helvetica, sans-serif; font-size: 12pt;">Background in performance tuning for large-scale search applications.</span></li> <li style="font-family: arial, helvetica, sans-serif; font-size: 12pt;"><span style="font-family: arial, helvetica, sans-serif; font-size: 12pt;">Experience with automation or CI/CD tools, such as Terraform, Ansible, GitLab or SaltStack.</span></li> </ul> <p>&nbsp;</p> <p><span style="font-family: arial, helvetica, sans-serif; font-size: 12pt;"><strong>Benefits</strong></span></p> <ul> <li style="font-family: arial, helvetica, sans-serif; font-size: 12pt;"><span style="font-family: arial, helvetica, sans-serif; font-size: 12pt;">Generous time off policies.</span></li> <li style="font-family: arial, helvetica, sans-serif; font-size: 12pt;"><span style="font-family: arial, helvetica, sans-serif; font-size: 12pt;">Top shelf benefits.</span></li> <li style="font-family: arial, helvetica, sans-serif; font-size: 12pt;"><span style="font-family: arial, helvetica, sans-serif; font-size: 12pt;">Education, wellness and lifestyle support.</span></li> </ul> <p>&nbsp;</p> <p><span style="font-family: arial, helvetica, sans-serif; font-size: 12pt;">To protect candidate information and maintain a secure hiring process, all applications must be submitted through our careers portal. Resumes or CVs sent directly via email will not be reviewed or considered.</span></p> <p>&nbsp;</p> <p><span style="font-family: arial, helvetica, sans-serif; font-size: 12pt;">LI-SS1</span></p>