Network Engineer – Load Balancing, F5 BIG-IP

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🔥 5 minutes ago

🇵🇱 Poland – Remote

💵 zł160 - zł200 / hour

⏰ Full Time

🟡 Mid-level

🟠 Senior

🛜 Network Engineer / Network Administrator

👻 Ghost score 0%

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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 Load Balancing product end to end on F5 BIG-IP, from transitioning new infrastructure into operations through changes, releases and decommissioning • Configure, administer and troubleshoot F5 BIG-IP LTM, DNS and AFM • Manage virtual servers, pools, iRules and SSL offloading, and maintain the certificate lifecycle • Manage firmware lifecycle, including TMOS upgrades, and F5 BIG-IP licensing • Analyse and resolve application delivery issues, persistence, health monitors and HA-pair failover • Carry out planned maintenance and changes during out-of-hours maintenance windows and participate in the weekly Change Advisory Board • Handle second- and third-level incidents and support root cause analysis, known-error documentation and workarounds • Support the Lead Network Engineer 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 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 with 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 experience with F5 BIG-IP (LTM, DNS, iRules, TMOS) in high-availability data center environments • Working knowledge of F5 BIG-IP AFM • F5 Certified BIG-IP Administrator (F5-CA) or equivalent certification • Willingness to join a rotating 24/7 on-call schedule, including nights, weekends and public holidays • Experience handling major incidents in a regulated, ideally banking, environment • Solid understanding of ITIL processes in a regulated environment • Fluent English, spoken and written • An existing 1-person company (działalność gospodarcza) registered in Poland • German language skills are a plus • F5 Certified Solution Expert (F5-CSE) is a plus • ITIL certification is a plus • Network automation with Ansible and Python, and experience with CheckMK and Splunk are a plus • CV in English • Candidates presented for this client in the last 6 months cannot be considered again

🏖️ Benefits

• 100% remote work • Full-time schedule • B2B cooperation agreement with Optiveum through the end of 2026, with a planned extension through 2027 • Rotating 24/7 on-call compensation implied by the contracted role

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