Senior Linux System Administrator

Grid Dynamics — Armenia · Posted ~22 hours ago

Senior

Skills

Linux AWS Oracle Cloud GCP Docker Kubernetes Network administration VPN DNS Firewalls Routing Apache PostgreSQL Postfix Bash Infrastructure security Backup and disaster recovery 7+ years of Linux administration Ansible

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Summary ✨ AI‑Generated

A senior infrastructure specialist is sought to own reliability, security, and performance across a global hybrid environment spanning physical servers, multiple cloud providers, and Kubernetes clusters. The role includes Linux administration, networking, databases, messaging services, security, disaster recovery, and infrastructure automation. Applicants should bring at least seven years of production Linux administration experience.

Highlights

High-impact senior role with ownership of reliability, security, and performance across physical servers, cloud infrastructure, and Kubernetes clusters in a global enterprise environment.

Description

About the role Hiring a Senior Linux System Administrator to join a small, high-impact technical team maintaining and modernizing a global hybrid infrastructure physical servers, cloud instances, and Kubernetes clusters for an enterprise SaaS platform used by clients worldwide. You'll own infrastructure reliability, security, and performance across a mixed on-prem and multi-cloud environment, working closely with a lean, senior team where your decisions matter. Responsibilities Administer and monitor production Linux systems across physical and cloud infrastructureManage and troubleshoot cloud environments (AWS, Oracle Cloud, or GCP)Support Docker/Kubernetes-based deploymentsHandle network administration: VPN, DNS, firewalls, routingMaintain Apache, PostgreSQL, and Postfix servicesOwn security, backup, and disaster recovery proceduresAutomate infrastructure tasks with Bash and configuration management tools (Ansible a plus) Requirements 7+ years of production Linux administration experienceStrong RHEL/AlmaLinux backgroundHands-on experience with at least one major cloud platformPractical Docker/Kubernetes experienceFluent English and strong remote collaboration skillsA proactive, structured, calm-under-pressure mindset you're comfortable wearing many hats on a small team About us Grid Dynamics (NASDAQ: GDYN) is a leading provider of technology consulting, platform and product engineering, AI, and advanced analytics services. Fusing technical vision with business acumen, we solve the most pressing technical challenges and enable positive business outcomes for enterprise companies undergoing business transformation. A key differentiator for Grid Dynamics is our 8 years of experience and leadership in enterprise AI, supported by profound expertise and ongoing investment in data, analytics, cloud & DevOps, application modernization and customer experience. Founded in 2006, Grid Dynamics is headquartered in Silicon Valley with offices across the Americas, Europe, and India.