Network SME - Data & Management Traffic Segregation

About the Offer We are currently looking for a Network SME to join the team of our global client from the banking sector. You will analyse the existing network landscape and lead the technical side of separating data and management traffic: from mapping NICs, VLANs and traffic flows, through defining the target architecture, to supporting the migration and validating the results. For this role, Optiveum is the recruitment and contracting party, which means you will sign the cooperation agreement directly with us. Key Details: Rate: up to 130 PLN/h net (B2B) Work Model: hybrid, mostly remote (approx. 75% remote), full-time (40 h/week) Location: Warsaw, Łódź or Tricity (Gdańsk/Gdynia) Responsibilities: Analysing NICs, IP addresses, VLANs, network zones and existing traffic flows Validating data and management traffic together with application and infrastructure teams Identifying backup, replication and other workloads using management network paths Defining the target network architecture, connectivity models and migration strategies Assessing NIC port availability, network capacity and infrastructure constraints Supporting migration activities, troubleshooting connectivity issues and performing post-migration validation Ensuring network stability, performance and compliance throughout the migration Requirements: Strong experience with enterprise networking environments Solid knowledge of routing, switching, VLANs, network segmentation and IP networking Hands-on experience with infrastructure, data center or network migration projects Ability to analyse complex network topologies and traffic dependencies Experience collaborating with application, infrastructure and operations teams Strong troubleshooting and problem-solving skills Excellent communication skills in cross-functional environments Native Polish and fluent English