Network Engineer (Load Balancing F5)

Be | Shaping the Future Poland, part of the Engineering Group, is a technology and business consulting company founded in 2013. We help organisations in financial services and other industries turn complex requirements into reliable, end-to-end solutions, drawing on expertise in software engineering, cloud and infrastructure, data, and quality assurance.

Location: Remote

Availability for 24/7 on-call, including nights, weekends and public holidays.

You will operate our Load Balancing product based on F5 BIG-IP (LTM, DNS, AFM) in a regulated banking environment. Working under the technical direction of the Lead Network Engineer, you will cover the full lifecycle, from Entry into Service to decommissioning.

Responsibilities

• Configure, operate and troubleshoot F5 BIG-IP (LTM, DNS, AFM): virtual servers, pools, iRules and SSL offloading.
• Manage the certificate lifecycle, TMOS upgrades and F5 licensing.
• Troubleshoot application delivery issues, persistence, health monitors and HA pair failover; resolve 2nd/3rd-level incidents and support root cause analysis.
• Execute planned changes and maintenance in night and weekend windows; join the weekly CAB.
• Take part in the 24/7 on-call rotation and support the Lead Network Engineer during Major Incidents.
• Tune CheckMK monitoring, track availability and capacity KPIs, and investigate Splunk log alerts.
• Run vulnerability management (CVE tracking, patching) and support audits and ISMS compliance.
• Keep the CMDB up to date and support asset lifecycle tracking.
• Maintain documentation, share knowledge with backup resources, and contribute to DR tests and continual improvement.

Requirements

• Several years of hands-on experience with F5 BIG-IP (LTM, DNS, iRules, TMOS) in high-availability data center environments.
• F5 Certified BIG-IP Administrator (F5-CA) or equivalent.
• Solid ITIL knowledge (Incident, Problem, Change, Configuration Management) in a regulated environment.
• Ability to work independently within defined processes
• Strong team and communication skills
• Fluent English.

Nice to have

• F5 Certified Solution Expert (F5-CSE), ITIL certification, German, Ansible/Python, CheckMK.

Why join us

• Competitive B2B rate, aligned with your experience and the project
• Long-term projects for leading international organisations
• Continuous growth through internal DevTalks, online and onsite
• A collaborative, international team within the Engineering Group
• Optional Medicover, Multisport and Mindgram packages at preferential rates
• Free access to the gym at our Q22 office
• Referral program: a bonus for every successful recommendation