Senior Network Engineer (Traffic Segregation) NEW

Jit; Polska; Hybrid; PLN 166,000 - 210,000; Full time

Benefits offered by this job

Flexible work organization

International work environment

Scandinavian culture

Training financing

Team integration meetings

Job summary

Jit is seeking a Senior Network Engineer to lead traffic segregation tasks within a complex financial enterprise environment. You will assess current network connectivity, traffic flows, and segmentation to help define a future-state architecture, collaborating with application and infrastructure teams to validate usage patterns and readiness.

The role involves supporting migration activities, troubleshooting, and post-migration validation, with an emphasis on release-ready network designs and

Qualifications

• 5+ years of experience in network engineering or related senior roles.
• Strong knowledge of enterprise networking environments.
• Hands-on experience with routing, switching, and VLAN configuration.
• Understanding of network segmentation principles and connectivity design.
• Experience delivering infrastructure migration initiatives within enterprises.
• Strong analytical, troubleshooting, and stakeholder collaboration skills.

Responsibilities

• Analyse NICs, IP addressing, VLANs, network zones, and existing traffic paths.
• Validate Data and Management traffic flows with application teams.
• Identify backup, replication, and other traffic types using the Management path; define target network architecture and migration approach.
• Assess NIC port availability and capacity constraints across the infrastructure.
• Support migration execution, troubleshooting activities, and post-migration validation.

Skills

5+ years experience

Network engineering

Network infrastructure

Routing

Switching

VLAN configuration

Network segmentation

Infrastructure migration

Troubleshooting

Stakeholder collaboration

Tools

Routing technologies

Switching technologies

VLANs

Infrastructure Migration Solutions

Job description

Senior Network Engineer (Traffic Segregation)

Salary: 900-1140 PLN/day on B2B

Work model: hybrid from Gdańsk / Gdynia / Warszawa / Łódź(2/3 days per week from the office)

Why choose this offer?

• You can expect a flexible work organization
• The international work environment will give you the opportunity to interact with the English language on a daily basis
• Scandinavian organizational culture will provide you with work-life balance, you will gain time for additional training (financed by Jit)
• The Jit community will bring you a nice time during regular integration meetings

Project

You will be involved in a financial project focused on network infrastructure assessment and migration planning within a complex enterprise environment. The assignment aims to analyse existing network connectivity, traffic flows, and segmentation to support the definition of a future-state architecture.

You will work closely with application and infrastructure teams to validate network usage patterns, identify dependencies, and assess migration readiness. The role requires supporting migration activities, troubleshooting issues, and ensuring a smooth transition through post-migration validation.

Responsibilities you'll have

• Analyse NICs, IP addressing, VLANs, network zones, and existing traffic paths
• Validate Data and Management traffic flows in cooperation with application teams
• Identify backup, replication, and other traffic types utilizing the Management pathDefine the target network architecture, connectivity model, and migration approach
• Assess NIC port availability and capacity constraints across the infrastructure
• Support migration execution, troubleshooting activities, and post-migration validation

Expected competences and knowledge

• 5+ years of experience in network engineering, network infrastructure, or related senior networking roles
• Strong knowledge of enterprise networking environments
• Hands‑on experience with routing, switching, and VLAN configuration
• Solid understanding of network segmentation principles and connectivity design
• Experience delivering infrastructure migration initiatives within enterprise environments
• Strong analytical, troubleshooting, and stakeholder collaboration skills

Technologies you'll work with

• Routing Technologies
• Switching Technologies
• VLANs
• Infrastructure Migration Solutions

Client – why choose this particular client from the Jit portfolio?

Jit Team has had an over‑decade‑long relationship with the leading financial group in the Nordic countries, and we are privileged to be our client's premier partner in Poland. At present, over 200 Jit personnel are engaged in the completion of more than 60 projects for this Norwegian major provider of financial services with a global presence and a strong focus on modern technology. Our customer's work atmosphere is epitomized by the Scandinavian culture, which is conducive to people who place emphasis on work‑life balance and feedback culture. Furthermore, all projects are executed in international teams, giving constant exposure to the English language.

About Jit Team

The Human Factor of IT - it’s not just a slogan, it’s a philosophy. The foundation of Jit Team is people, which is why we prioritise you. We employ over 770 experienced experts, to whom we offer developmental projects, a wide range of benefits, and a proprietary professional development programme. Together with clients from around the world, we create innovative IT solutions delivered by highly specialised and efficient teams.

Behind our maxim are also charitable and educational activities. We support schools, universities, and educational institutions by conducting workshops, running educational projects, sponsoring events, and donating learning equipment. We offer internships that help launch careers in IT. We support water rescuers and hospitals by providing the necessary equipment. We also support numerous charitable organisations helping people in need, children, and the elderly. We are a Polish company and we share what we have achieved over more than 15 years of activity. By supporting local initiatives, we contribute to the circulation of good energy.