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Astreya

AI-powered managed IT services provider

Network Operations Engineer 1

Network Engineering & AdministrationConfirmed live in the last 24 hours
Full-timeDublin, Ireland€45.3k - €56.6k /yrIn-person

About the Job

Requirements

  • An Associate's or Bachelor's degree in a technical field, or equivalent practical experience.
  • 0–2 years of experience in network operations, IT support, or a related technical role; internships or lab experience are considered.
  • Foundational knowledge of IP networking, including TCP/IP, IPv4/IPv6 addressing, subnetting, routing and switching concepts, and awareness of BGP, OSPF and MPLS.
  • Basic understanding of optical transport concepts, including DWDM, CWDM, fiber types, optics, patch panels and optical power levels.
  • Familiarity with network device command-line interfaces.
  • Ability to follow procedures accurately and apply analytical and problem-solving skills.
  • Good written and verbal communication skills, including clear ticket documentation.
  • Willingness to learn, take direction and escalate appropriately.
  • Ability to work effectively in a 24x7 shift-based operational environment.
  • Ability to perform office-related tasks, including prolonged sitting or standing; move within an office environment and use a computer; and perform occasional repetitive motions of the wrists, hands, and/or fingers.
  • Availability to work rotating shifts, including weekends and holidays as required in a 24x7 environment.

Responsibilities

  • Serve as the first-level response point for optical and IP network alarms and incidents.
  • Monitor network health using NOC monitoring and alarm management tools, and acknowledge alarms within defined response times.
  • Perform first-level triage and troubleshooting following established runbooks and procedures.
  • Escalate incidents to Network Operations Engineers II with accurate initial diagnostics.
  • Create, update and maintain tickets with clear, accurate documentation.
  • Support scheduled maintenance activities and network changes under the direction of senior engineers.
  • Develop technical knowledge of optical and IP technologies through training, shadowing and mentorship.
  • Monitor optical and IP network alarms, events and performance dashboards across a 24x7 environment.
  • Acknowledge, prioritise and triage alarms and incidents according to severity and defined response times.
  • Perform first-level troubleshooting of optical (DWDM, CWDM) and IP (IPv4/IPv6, MPLS, BGP, OSPF) networks using runbooks, including checking optical power levels, interface status, alarm states, protocol adjacencies and basic connectivity.
  • Gather initial diagnostic information such as logs, alarm history, interface counters and recent changes to support fault isolation.
  • Escalate incidents that cannot be resolved at first level to Network Operations Engineers II, with clear findings and the steps already taken.
  • Support senior engineers during major service-impacting incidents by running checks, gathering data and keeping tickets updated.
  • Create, update and close tickets with accurate, detailed and timely documentation for all work performed.
  • Open cases with vendor TACs, such as Cisco, Juniper, Ciena, Nokia and Infinera, when directed, and provide requested logs and diagnostics.
  • Track open tickets and vendor cases, and follow up to ensure timely progress.
  • Verify basic service restoration after an incident and record the outcome in the ticket.
  • Notify internal stakeholders and customers of incidents using approved communication templates.
  • Support scheduled maintenance activities and network changes under the direction of Engineers II or III, including pre- and post-change checks.
  • Follow approved method-of-procedure documents and change management processes.
  • Assist with turn-up and testing of new circuits, services and network elements.
  • Coordinate with field technicians, colocation facilities, ISPs and service providers to arrange access, dispatches and testing.
  • Complete structured training and shadow senior engineers to build optical and IP troubleshooting skills.
  • Follow runbooks and procedures, and flag gaps or inaccuracies to senior engineers for update.
  • Contribute to knowledge-base articles under the review of senior engineers.
  • Participate in shift handoffs and produce clear, complete shift-turnover notes.
  • Work collaboratively with NOC colleagues, Engineering and other operational teams.

Desired Qualifications

  • Associate-level certifications such as CCNA, JNCIA, Nokia NRS I, CompTIA Network+, or equivalent.
  • Exposure to multi-vendor network equipment, such as Cisco, Juniper, Ciena, Nokia and Infinera.
  • Basic familiarity with fiber testing tools, including OTDR, power meters and light sources.
  • Experience with NOC monitoring, alarm management and ticketing platforms.
  • Awareness of ITIL-based incident and change management processes.
  • Interest in scripting or automation, such as Python.

About the Company

Astreya

AI-powered managed IT services provider

Astreya provides IT managed services for large enterprises, designing, deploying, and running their technology environments. Its offerings cover cloud, infrastructure, security, digital workplace services, and AI-powered support, including an AI-driven service desk and an AI Ops platform. It differentiates itself by tightly integrating with a client’s existing stack and partnering with platforms like Google Cloud, Databricks, and ServiceNow to deliver end-to-end managed IT with in-house AI capabilities. Its goal is to help enterprises run IT more efficiently and securely while expanding impact through partnerships and acquisitions, including supporting Cognizant's AI-first managed services strategy.

Company size
1,001-5,000
Company stage
Acquired
Total funding
Not listed
Headquarters
San Jose, CA
Founded
2001

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