Network Engineer – Load Balancing / F5 BIG-IP About the Offer We are looking for an experienced
Network Engineer – Load Balancing (F5 BIG-IP)
to join the network operations team of the central IT services provider of one of Germany's largest banking groups. The client runs the core banking infrastructure for hundreds of regional savings banks across Germany, so you will work in a large, stable and highly regulated environment.
For this role,
Optiveum
is the recruitment and contracting party, which means you will sign the B2B cooperation agreement directly with us.
Key Details:
Rate:
160–200 PLN/h net (B2B), depending on experience
Contract:
B2B with Optiveum, until the end of 2026 with a planned extension through 2027
Work Model:
100% remote, full-time (5 days per week)
On-call:
rotating 24/7 on-call, plus planned changes in maintenance windows (usually nights and weekends)
Location:
Remote from Poland
Start:
ASAP
Languages:
fluent English is required; German is a strong plus
Responsibilities:
Run and operate the Load Balancing product end to end on F5 BIG-IP (LTM, DNS, AFM): from transitioning new infrastructure into operations, through changes and releases, to decommissioning
Configure, administer and troubleshoot F5 BIG-IP LTM, DNS and AFM
Manage virtual servers, pools, iRules and SSL offloading, and look after the certificate lifecycle
Manage the 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 in maintenance windows outside core hours and take part in the weekly Change Advisory Board (CAB)
Handle 2nd and 3rd-level incidents and support root cause analysis, known-error documentation and workarounds
Support the Lead Network Engineer during major incidents (bridge calls, data collection, 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 (security patches, CVE tracking, remediation) in line with ISMS requirements
Maintain the CMDB (IP addresses, VLANs, VRFs, 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: Incident, Problem, Change, Release, Knowledge, Configuration, Event, Availability and Capacity Management
Fluent English, spoken and written
An existing 1‑person company (działalność gospodarcza) registered in Poland
Nice to Have:
German language skills
F5 Certified Solution Expert (F5‑CSE)
ITIL certification
Network automation with Ansible and Python, and experience with CheckMK and Splunk
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Network Engineer – Load Balancing / F5 BIG-IP in Wrocław – pracodawca: Optiveum
Optiveum to doskonały pracodawca, oferujący elastyczny model pracy hybrydowej w sercu Polski, w miastach takich jak Warszawa, Gdańsk, Gdynia i Łódź. Nasza kultura pracy opiera się na współpracy i innowacyjności, co sprzyja rozwojowi zawodowemu pracowników, a także zapewnia dostęp do unikalnych projektów w międzynarodowym środowisku finansowym. Oferujemy konkurencyjne wynagrodzenie oraz możliwość pracy z najnowszymi technologiami w dynamicznej branży bankowej.
