{"id":3851592,"url":"https://alion.io/job/zayo-group-senior-systems-administrator","title":"Senior Systems Administrator","company":{"id":630,"name":"Zayo Group","domain":"zayo.com","url":"https://alion.io/company/zayo-group","size_band":"1001-5000","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Workday","truth_index":{"grade":"A","score":85,"open_postings":24,"ghost_share":0,"stale_share":0.583,"repost_share":0.042,"time_to_fill_p50_days":22,"computed_at":"2026-11-11T05:49:22Z"}},"role":"DevOps","role_family":"DevOps","seniority":"senior","employment_type":"full_time","work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["United States"],"countries":["US"],"hiring_countries":[],"hiring_countries_total":0,"salary":{"min":112800,"max":173600,"currency":"USD","period":"year","gross":null,"usd_annual":173600},"salary_estimate":null,"experience_years_min":8,"visa_sponsorship":true,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Agile","optional":false},{"name":"Bash","optional":false},{"name":"CI/CD","optional":false},{"name":"Configuration Management","optional":false},{"name":"DNS","optional":false},{"name":"Docker","optional":false},{"name":"Docker Swarm","optional":false},{"name":"GitLab","optional":false},{"name":"Jenkins","optional":false},{"name":"Linux","optional":false},{"name":"Python","optional":false},{"name":"TCP/IP","optional":false},{"name":"Ansible","optional":true},{"name":"Grafana","optional":true},{"name":"PKI","optional":true},{"name":"Prometheus","optional":true},{"name":"Terraform","optional":true}],"status":"live","first_seen_at":"2026-11-05T00:00:00Z","employer_posted_date":"2026-11-05","last_verified_at":"2026-11-12T05:39:53Z","board_verified":true,"closed_at":null,"days_open":7,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":7},"description":"Company Description\nZayo provides mission-critical bandwidth to the world’s most impactful companies, fueling the innovations that are transforming our society. Zayo’s 141,000-mile network in North America and Europe includes extensive metro connectivity to thousands of buildings and data centers. Zayo’s communications infrastructure solutions include dark fiber, private data networks, wavelengths, Ethernet, and dedicated Internet access. Zayo serves wireless and wireline carriers, media, tech, content, finance, healthcare and other large enterprises.\nZayo 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.\nIn 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. These systems are critical to both our software engineering workflows and the operational capabilities of Zayo's network.\nYou will administer and support a variety of platforms, including Cisco Network Services Orchestrator (NSO), GitLab, Jenkins, Docker, Docker Swarm, and other supporting development, deployment, and automation technologies. Your responsibilities will include system administration, software installation and upgrades, performance tuning, troubleshooting, capacity planning, and proactive maintenance.\nThe ideal candidate is a highly capable Linux system administrator who enjoys solving complex infrastructure problems, takes ownership of system reliability, and is comfortable working with both traditional Linux infrastructure and modern containerized application environments.\nYou will work closely with software engineers and network engineering teams to ensure our platforms are stable, performant, secure, and capable of meeting evolving business and technical requirements.\nKey Responsibilities\nSystems Administration & Infrastructure Management\nInstall, configure, administer, and maintain Linux-based servers and application infrastructure supporting the network automation environment.\nManage the availability, reliability, and performance of critical platforms, including Cisco NSO, GitLab, Jenkins, Docker, and Docker Swarm.\nPerform routine system administration tasks, including operating system maintenance, software installations, package management, configuration changes, and system health checks.\nPlan and execute software upgrades, patches, and platform migrations while minimizing disruption to development workflows and production operations.\nMonitor system resource utilization, including CPU, memory, disk, network, and application performance, to identify and address potential issues.\nPerform system tuning and configuration optimization to improve performance, stability, and resource efficiency.\nManage system capacity and resource allocation to support application growth and evolving infrastructure requirements.\nMaintain accurate system documentation, configuration records, operational procedures, and troubleshooting guides.\nPlatform Administration & Support\nAdminister and maintain Cisco NSO environments, including software upgrades, patching, configuration management, application health monitoring, and troubleshooting.\nSupport GitLab infrastructure, including repository services, CI/CD runners, application configuration, system upgrades, and performance optimization.\nMaintain Jenkins servers, agents, plugins, integrations, and build execution environments.\nAdminister Docker hosts and Docker Swarm clusters, including cluster health, node management, service scheduling, networking, storage, and resource allocation.\nManage supporting developer tooling and infrastructure services as required by the engineering team.\nCollaborate with software engineers to troubleshoot application deployments, build failures, infrastructure dependencies, and environment-related issues.\nMaintain consistent, reliable development, testing, staging, and production environments.\nMonitoring, Troubleshooting & Reliability\nProactively monitor infrastructure and application health to detect and address potential problems before they impact users or network operations.\nDiagnose and resolve complex system issues involving Linux, application services, containers, networking, storage, and system dependencies.\nInvestigate service outages, performance degradation, deployment failures, and unexpected system behavior.\nAnalyze system logs, performance metrics, and diagnostic information to identify root causes and implement lasting solutions.\nParticipate in incident response, service restoration, root cause analysis, and preventative improvement efforts.\nDevelop and maintain monitoring, alerting, and health-check capabilities to improve system visibility and reduce operational risk.\nIdentify recurring issues and implement improvements that increase platform stability, recoverability, and maintainability.\nEstablish and maintain backup, recovery, and disaster recovery procedures for critical infrastructure and application platforms.\nSecurity, Maintenance & Lifecycle Management\nApply application updates and security patches in accordance with established maintenance practices.\nMaintain secure system configurations, appropriate access controls, and service account permissions.\nSupport certificate management, secrets management, and secure communication between infrastructure components.\nMonitor platform versions, software dependencies, and vendor support lifecycles to identify necessary upgrades or replacements.\nEvaluate the operational impact of proposed changes and coordinate maintenance activities with affected engineering and operations teams.\nEnsure infrastructure changes are documented, tested when appropriate, and implemented with suitable rollback procedures.\nAssist with vulnerability remediation and compliance with organizational security policies.\nAutomation & Continuous Improvement\nDevelop and maintain scripts and automation tools to reduce manual administration tasks and improve operational consistency.\nUse scripting languages such as Bash and Python to automate system maintenance, monitoring, configuration, and troubleshooting activities.\nIdentify opportunities to standardize system configurations and improve infrastructure management processes.\nWork with software engineers to improve CI/CD infrastructure, application deployment reliability, and development environment performance.\nEvaluate and recommend improvements to existing tools, platforms, and operational practices.\nContribute to capacity planning, infrastructure modernization, and lifecycle management initiatives.\nCollaboration & Operational Ownership\nWork closely with software engineers, network engineers, security teams, and infrastructure stakeholders to understand system requirements and operational priorities.\nServe as a primary technical resource for infrastructure and platform administration within the Network Automation team.\nTake ownership of infrastructure issues from initial investigation through resolution and follow-up.\nParticipate in team planning, technical discussions, and Agile development activities as appropriate.\nCommunicate maintenance activities, outages, risks, and technical issues clearly to affected stakeholders.\nCoordinate changes to critical systems to minimize operational disruption.\nSupport production incident response and scheduled maintenance activities, including occasional after-hours work when required.\nRequired Qualifications\nBachelor’s degree in Computer Science, Information Technology, Systems Administration, or a related field, or equivalent practical experience.\n Minimum of eight (8) years of professional Linux systems administration experience, supporting production servers, applications, or infrastructure platforms.\nStrong Linux expertise is required, including proficiency with the command line, system configuration, service management, package management, networking, storage, permissions, and process troubleshooting.\nDemonstrated experience installing, configuring, maintaining, upgrading, and troubleshooting applications running on Linux systems.\nExperience administering Docker or similar container technologies, including container lifecycle management, networking, storage, and resource management.\nFamiliarity with CI/CD platforms and developer tooling, such as GitLab, Jenkins, or similar systems.\nExperience diagnosing system performance issues and tuning configurations to improve reliability and efficiency.\nStrong understanding of Linux networking fundamentals, including TCP/IP, DNS, routing, firewalls, and troubleshooting connectivity issues.\nExperience working with system logs, monitoring tools, and performance metrics to diagnose infrastructure problems.\nProficiency with shell scripting, particularly Bash, for system automation and administrative tasks.\nExperience performing software upgrades, applying patches, and managing system maintenance activities in production environments.\nUnderstanding of system security principles, access controls, SSH, authentication, and operating system hardening.\nStrong problem-solving skills and the ability to independently investigate and resolve complex technical issues.\nAbility to manage multiple priorities, communicate effectively, and collaborate with software engineers and other technical teams.\nPreferred Qualifications\n Hands-on experience administering Cisco Network Services Orchestrator (NSO), including installation, configuration, upgrades, troubleshooting, and performance optimization.\nExperience supporting GitLab in a self-managed environment, including GitLab Runners, CI/CD execution infrastructure, backups, and upgrades.\nExperience administering Jenkins, including controllers, agents, plugins, job execution environments, and integrations.\nHands-on experience managing Docker Swarm clusters, including manager and worker nodes, service deployment, overlay networking, persistent storage, and cluster troubleshooting.\nExperience supporting distributed applications and microservices architectures.\nProficiency in Python for scripting and infrastructure automation.\nFamiliarity with infrastructure-as-code or configuration management tools such as Ansible or Terraform.\nExperience with monitoring and observability platforms such as Prometheus, Grafana, or similar tools.\nFamiliarity with centralized logging and log analysis solutions.\nExperience with Linux performance analysis tools and techniques.\nKnowledge of high availability, redundancy, load balancing, backup strategies, and disaster recovery.\nFamiliarity with TLS certificates, PKI, secrets management, and application security practices.\nExperience supporting development teams and maintaining infrastructure used for software development, testing, and continuous delivery.\nUnderstanding of network infrastructure, telecommunications systems, or service provider environments.\nFamiliarity with network automation technologies, including NETCONF, RESTCONF, YANG, or network device management systems.\nExperience supporting applications that interface with APIs, databases, or external infrastructure services.\nWhat Success Looks Like\nMaintain high availability and reliable performance of the systems that support network automation and software development.\nEnsure critical platforms, including Cisco NSO, GitLab, Jenkins, and Docker Swarm, are properly maintained, monitored, and kept on supported software versions.\nQuickly identify, diagnose, and resolve infrastructure issues while minimizing disruption to engineering activities and network operations.\nProactively identify performance bottlenecks, capacity constraints, security risks, and emerging infrastructure problems.\nEstablish effective monitor...","description_format":"text","description_chars":16528,"description_truncated":true,"requirements":{"experience_years_min":8,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":{"level":"bachelor","optional":false},"security_clearance":false,"languages":[]},"benefits":["Health insurance","Life 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