Network Operations Expert

Your responsibilities

• Lead in-depth technical investigations into complex network issues, service degradation, infrastructure dependencies, and remediation options, gaining broad exposure to world-class modern infrastructure and a diverse range of enterprise network technologies
• Take technical ownership of business-critical incidents, working side by side with highly experienced engineering teams, technology vendors, and suppliers to exchange knowledge, accelerate troubleshooting, define effective recovery actions, and restore services with confidence
• Turn service reports, monitoring data, trends, and recurring issues into actionable insights, while continuously developing best-in-class monitoring capabilities and operational dashboards that reveal service health, performance, risks, and emerging issues
• Act as the technical lead for Root Cause Analysis within the Problem Management process, expanding your expertise as you uncover underlying causes, shape preventive actions, and support the Problem Manager in driving them through to implementation
• Plan and deliver business-critical network changes across complex, interconnected technologies and solutions, combining technical validation, risk assessment, implementation coordination, and rollback readiness to achieve safe and predictable outcomes
• Strengthen the security and resilience of large-scale network services by overseeing vulnerability management and security baseline compliance, assessing exposure and business risk, identifying control gaps, prioritising remediation, and following mitigation actions through to closure
• Bring your technical judgement to operational and supplier reviews, collaborating with recognised specialists across countries and technology domains while evaluating evidence, constructively challenging delivery quality and corrective measures, and ensuring agreed actions, owners, deadlines, and dependencies remain on track
• Help shape reliable, supportable services and the future of our network landscape by validating the operational readiness of new and changed solutions, broadening your experience across acceptance criteria, support procedures, escalation paths, recovery instructions, service dependencies, and ownership across engineering and operations
• Create and maintain high-quality technical documentation, sharing knowledge with experienced colleagues and ensuring that operational procedures, configuration records, and recovery instructions remain accurate, current, and practical to use across teams
• Drive transparency and continuous improvement by maintaining prioritised action, risk, issue, and improvement backlogs, and by translating complex topics into concise status updates, management summaries, and clear recommendations that influence decisions in governance forums
• Have a structured and analytical mindset, with the ability to work across strategic, tactical, and operational priorities
• Take ownership and act proactively, including in situations with unclear boundaries, dependencies, or requirements

Our requirements

• Hold at least a valid CCNP certification, preferably CCNP Security or, alternatively, CCNP Enterprise
• Extensive experience in network operations within a large, complex enterprise environment, covering a broad range of network technologies, platforms, and operational tools, combined with a good understanding of core ITIL processes, including Incident, Change, and Problem Management
• 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 customization, and the creation of operational dashboards that provide actionable visibility into service health, performance, and emerging risks
• Proven expert-level operational and troubleshooting experience with Cisco ISE, including authentication and authorization flows, 802.1X, RADIUS and TACACS+, policy enforcement, endpoint profiling, certificate-related issues, and complex integrations with network devices
• Deep practical expertise in 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 operational risks related to software and configuration changes
• 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 of transport or tunnel failures
• Understanding of 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
• Strong knowledge of multicast operations, including IGMP, PIM, rendezvous points, multicast routing and forwarding, source and receiver dependencies, and troubleshooting of packet loss, incorrect tree formation, or reachability issues
• Experience maintaining accurate CMDB records and working with IT service management and ticketing platforms such as BMC Helix and Jira to manage incidents, changes, problems, requests, and related operational workflows
• Extensive hands-on experience in advanced network diagnostics, using logs, packet captures, monitoring data, configuration comparisons, and vendor diagnostic tools to independently evaluate technical findings, challenge proposed remediation, identify effective recovery actions, and support the restoration of complex, business-critical network services

Benefits

• private medical care
• life insurance
• flexible working time
• integration events
• corporate gym
• corporate sports team
• retirement pension plan
• no dress code
• coffee / tea
• parking space for employees
• leisure zone
• extra social benefits
• holiday funds
• redeployment package
• employee referral program
• charity initiatives
• Sports membership cards
• Nordea Seniority Benefit
• Wellbeing platform
• Hybrid working options
• Flexible benefits platform

NORDEA Bank Abp SA Oddział w Polsce