[Hiring] Senior Systems Administrator @Zayo Group

Role Description

Zayo Group is seeking an experienced and highly motivated System Administrator to join our Network Automation Software Engineering team. Our team develops and maintains the software platforms, microservices, and automation solutions that enable the provisioning, configuration, and management of Zayo's large-scale telecommunications network infrastructure.

In this role, you will be responsible for:

• The availability, performance, reliability, security, and ongoing maintenance of the infrastructure and development platforms that support our network automation ecosystem.
• Administering and supporting a variety of platforms, including Cisco Network Services Orchestrator (NSO), GitLab, Jenkins, Docker, Docker Swarm, and other supporting development, deployment, and automation technologies.
• System administration, software installation and upgrades, performance tuning, troubleshooting, capacity planning, and proactive maintenance.

Qualifications

• Bachelor’s degree in Computer Science, Information Technology, Systems Administration, or a related field, or equivalent practical experience.
• Minimum of eight (8) years of professional Linux systems administration experience, supporting production servers, applications, or infrastructure platforms.
• Strong Linux expertise is required, including proficiency with the command line, system configuration, service management, package management, networking, storage, permissions, and process troubleshooting.
• Demonstrated experience installing, configuring, maintaining, upgrading, and troubleshooting applications running on Linux systems.
• Experience administering Docker or similar container technologies, including container lifecycle management, networking, storage, and resource management.
• Familiarity with CI/CD platforms and developer tooling, such as GitLab, Jenkins, or similar systems.
• Experience diagnosing system performance issues and tuning configurations to improve reliability and efficiency.
• Strong understanding of Linux networking fundamentals, including TCP/IP, DNS, routing, firewalls, and troubleshooting connectivity issues.
• Experience working with system logs, monitoring tools, and performance metrics to diagnose infrastructure problems.
• Proficiency with shell scripting, particularly Bash, for system automation and administrative tasks.
• Experience performing software upgrades, applying patches, and managing system maintenance activities in production environments.
• Understanding of system security principles, access controls, SSH, authentication, and operating system hardening.
• Strong problem-solving skills and the ability to independently investigate and resolve complex technical issues.
• Ability to manage multiple priorities, communicate effectively, and collaborate with software engineers and other technical teams.

Requirements

• Hands-on experience administering Cisco Network Services Orchestrator (NSO), including installation, configuration, upgrades, troubleshooting, and performance optimization.
• Experience supporting GitLab in a self-managed environment, including GitLab Runners, CI/CD execution infrastructure, backups, and upgrades.
• Experience administering Jenkins, including controllers, agents, plugins, job execution environments, and integrations.
• Hands-on experience managing Docker Swarm clusters, including manager and worker nodes, service deployment, overlay networking, persistent storage, and cluster troubleshooting.
• Experience supporting distributed applications and microservices architectures.
• Proficiency in Python for scripting and infrastructure automation.
• Familiarity with infrastructure-as-code or configuration management tools such as Ansible or Terraform.
• Experience with monitoring and observability platforms such as Prometheus, Grafana, or similar tools.
• Familiarity with centralized logging and log analysis solutions.
• Experience with Linux performance analysis tools and techniques.
• Knowledge of high availability, redundancy, load balancing, backup strategies, and disaster recovery.
• Familiarity with TLS certificates, PKI, secrets management, and application security practices.
• Experience supporting development teams and maintaining infrastructure used for software development, testing, and continuous delivery.
• Understanding of network infrastructure, telecommunications systems, or service provider environments.
• Familiarity with network automation technologies, including NETCONF, RESTCONF, YANG, or network device management systems.
• Experience supporting applications that interface with APIs, databases, or external infrastructure services.

Benefits

• Excellent Health, Dental & Vision Insurance
• Retirement 401(k) Savings Plan
• Generous paid time off policy including paid parental leave