Network Engineer – Data Center Network, Cisco ACI, Nexus

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🇵🇱 Poland – Remote

💵 zł160 - zł200 / hour

⏰ Full Time

🟡 Mid-level

🟠 Senior

🚰 Data Engineer

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Optiveum

WebsiteLinkedInAll Job Openings

1 - 10 employees

📦 Logistics

📣 Marketing

🏭 Manufacturing

Logistics • Marketing • Manufacturing

Optiveum is a recruitment and consulting company based on over 20 years of experience in HR and IT services. It operates both locally in Poland and internationally, offering candidates project-based or permanent job opportunities, either remotely or on-site. Optiveum specializes in placing professionals across various fields including IT, finance, accounting, and manufacturing, ensuring that both clients and candidates achieve their professional goals.

📋 Description

• Run and operate the Data Center Network product end to end on Cisco ACI and Cisco Nexus (9k, 7k), and on Huawei components from 2028 • Transition new infrastructure into operations, manage changes and releases, and decommission infrastructure • Configure, administer and troubleshoot Cisco ACI, including APIC, tenant policies and L4-L7 service graphs • Configure and support Cisco Nexus switching with NX-OS, vPC, FEX and M-FC • Carry out ACI fabric upgrades and EPG changes in coordination with the Lead Network Engineer • Manage the firmware lifecycle for Nexus and ACI and handle licences with Cisco Smart Licensing • Prepare for the planned Huawei CloudEngine rollout • Analyse and resolve fabric outages, packet loss and multipath issues • Handle 2nd- and 3rd-level incidents and support root cause analysis, known-error documentation and workarounds • Support the Lead Network Engineer and on-call lead during major incidents, including bridge calls, data collection and emergency changes • Tune event monitoring in CheckMK and report on service availability, uptime, MTBF, MTTR and capacity • Investigate log anomalies flagged in Splunk and maintain standard syslog configurations • Run vulnerability management, including security patches, CVE tracking and remediation, in line with ISMS requirements • Maintain the CMDB, including IP addresses, VLANs, VRFs and configuration items, and track licences and asset lifecycle • Support internal and external audits and drive continual service improvement and automation • Share knowledge with stand-ins and contribute to runbooks, configuration standards and SOPs

🎯 Requirements

• Several years of hands-on operations experience in data center environments • Solid knowledge of Cisco ACI, including APIC, tenant concepts and L4-L7 integration • Solid knowledge of Cisco Nexus and NX-OS • Cisco CCNA or CCNP Data Center certification (or equivalent); CCNP Data Center preferred for senior candidates • Some experience with Huawei data center / CloudEngine components, or willingness to learn them quickly • Experience handling major incidents in a regulated (ideally banking) environment • Solid understanding of ITIL processes in a regulated environment: Incident, Problem, Change, Release, Knowledge, Configuration, Event, Availability and Capacity Management • Experience maintaining operational documentation • Fluent English, spoken and written • An existing 1-person company (działalność gospodarcza) registered in Poland • German language skills • Huawei HCIP or HCIE Datacom certification • ITIL certification • Network automation with Ansible and Python, and experience with CheckMK

🏖️ Benefits

• 100% remote work • Full-time schedule • B2B cooperation agreement with Optiveum through the end of 2026, with planned extension through 2027 • Opportunity to participate in the planned Huawei CloudEngine transition from 2028 • Stable, large and highly regulated banking environment • Remote work from Poland

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