Nordea

Network Operations Expert

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SeniorHybryda·GdyniaFull-time

#468593·Dodano 7 dni temu·4

Źródło: Nordea

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Tech Stack / Keywords

Cisco Catalyst CenterCisco ISECisco ASAVPNSD-WANCisco Software-Defined AccessGrafana SplunkCCNPITIL

Podsumowanie oferty

Join the Network Operations Oversight team and help ensure the security, stability, resilience, and continuous improvement of Nordea’s enterprise network services. You’ll investigate complex network issues, manage critical incidents and changes, and drive service improvement across a range of network technologies.

Wymagania

Have a structured and analytical mindset and work across strategic, tactical, and operational priorities.
Take ownership and act proactively, including when boundaries, dependencies, or requirements are unclear.
Be fluent in spoken and written English and able to communicate clearly, facilitate discussions, and constructively challenge decisions.
Have problem-solving, prioritisation, negotiation, and conflict-resolution skills.
Understand complex infrastructure services from operational and business perspectives, including dependencies, risks, and support requirements.
Translate business outcomes into operational requirements, priorities, and improvement actions.
Collaborate across virtual, international, and cross-functional teams, including suppliers and engineering functions.
Work effectively in an Agile SAFe environment.
Hold a valid CCNP certification; CCNP Security is preferred, or alternatively CCNP Enterprise.
Have extensive network operations experience in a large, complex enterprise environment, broad knowledge of network technologies, platforms, and operational tools, and a good understanding of ITIL Incident, Change, and Problem Management processes.
Have strong operational knowledge of Cisco Catalyst Center (formerly Cisco DNA Center) and logging and monitoring platforms such as Grafana, Splunk, Syslog-based solutions, and LogicMonitor, including assurance, health and performance monitoring, inventory and configuration visibility, software image management, event analysis and data correlation, technical investigation, alert definition and modification, monitoring threshold customisation, and operational dashboards.
Have expert-level operational and troubleshooting experience with Cisco ISE, including authentication and authorisation flows, 802.1X, RADIUS, TACACS+, policy enforcement, endpoint profiling, certificate-related issues, and integrations with network devices.
Have practical expertise operating and troubleshooting Cisco ASA and enterprise VPN services, including remote-access VPN, high availability, certificate lifecycle, authentication dependencies, advanced service troubleshooting, and assessment of risks from software and configuration changes.
Have operational experience with Cisco SD-WAN, including control and data plane concepts, controller and edge health, policies, application-aware routing, overlay connectivity, software lifecycle, monitoring, and troubleshooting transport or tunnel failures.
Understand Cisco Software-Defined Access, including fabric roles, underlay and overlay dependencies, Virtual Networks, Scalable Group Tags, integration with Cisco ISE, assurance, and operational troubleshooting across the fabric.
Have strong multicast operations knowledge, including IGMP, PIM, rendezvous points, multicast routing and forwarding, source and receiver dependencies, and troubleshooting packet loss, incorrect tree formation, or reachability issues.
Have experience maintaining accurate CMDB records and using IT service management and ticketing platforms such as BMC Helix and Jira to manage incidents, changes, problems, requests, and related workflows.
Have extensive hands-on experience in advanced network diagnostics using logs, packet captures, monitoring data, configuration comparisons, and vendor diagnostic tools to evaluate findings, challenge proposed remediation, identify recovery actions, and support restoration of complex, business-critical network services.

Obowiązki

Lead technical investigations into complex network issues, service degradation, infrastructure dependencies, and remediation options.
Take technical ownership of business-critical incidents and work with engineering teams, vendors, and suppliers to troubleshoot, define recovery actions, and restore services.
Turn service reports, monitoring data, trends, and recurring issues into actionable insights; develop monitoring capabilities and operational dashboards.
Lead Root Cause Analysis within Problem Management, identify underlying causes, shape preventive actions, and support their implementation.
Plan and deliver business-critical network changes, including technical validation, risk assessment, implementation coordination, and rollback readiness.
Oversee vulnerability management and security baseline compliance, assess exposure and business risk, identify control gaps, prioritise remediation, and track mitigation actions.
Contribute technical judgement to operational and supplier reviews, evaluate delivery quality and corrective measures, and track agreed actions, owners, deadlines, and dependencies.
Validate the operational readiness of new and changed solutions, including acceptance criteria, support procedures, escalation paths, recovery instructions, service dependencies, and ownership.
Create and maintain technical documentation, including operational procedures, configuration records, and recovery instructions.
Maintain prioritised action, risk, issue, and improvement backlogs; prepare status updates, management summaries, and recommendations for governance forums.

Nordea

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