Network SME - Data & Management Traffic Segregation

Optiveum; Warszawa; Hybrid; PLN 148,000 - 210,000; Full time

Job summary

Optiveum is seeking a Network SME to join our global banking-sector client. You will analyze the current network landscape and lead the technical work to separate data and management traffic, from mapping NICs, VLANs and traffic flows to defining the target architecture.

You will support the migration, validate results and ensure network stability and compliance throughout the process. Fluent English and native Polish are required; hybrid work with roughly 75% remote.

Qualifications

• Experience in enterprise networking environments.
• Knowledge of routing, switching, VLANs, and IP networking.
• Experience with data center or network migration projects.
• Ability to analyze complex network topologies and traffic dependencies.
• Experience collaborating with application, infrastructure and operations teams.
• Strong troubleshooting and problem-solving skills.
• Excellent cross-functional communication.
• Native Polish and fluent English.

Responsibilities

• Analyzing 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.

Skills

Enterprise networking

Routing & Switching

VLANs

IP Networking

Network Segmentation

Migration Projects

Traffic Dependencies

Cross-functional Collaboration

Troubleshooting

Communication

Polish & English

Job description

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