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Warszawa, województwo mazowieckie, Polska
Hybrid
Continue to make an impact with a company that is pushing the boundaries of what is possible. At NTT DATA, we are renowned for our technical excellence, leading innovations, and making a difference for our clients and society. Our workplace embraces diversity and inclusion – it’s a place where you can continue to grow, belong, and thrive.
Your career here is about believing in yourself and seizing new opportunities and challenges. It’s about expanding your skills and expertise in your current role and preparing yourself for future advancements. That’s why we encourage you to take every opportunity to further your career within our great global team.
We are looking for:
A Senior Network Engineer who wants to work on enterprise-scale environments and real network transformation projects, not only day-to-day operations.
Your day at NTT DATA
The Senior Network Engineer (L3) is a hands-on technical expert responsible for design, implementation, and optimization of complex enterprise network environments, with a strong focus on project delivery and technical ownership.
You will work on both strategic initiatives (e.g. migrations, redesigns, modernization) and advanced operational challenges, acting as a key escalation and engineering authority.
Key Responsibilities
Your Profile
• 5+ years of experience in Network Engineering (including L3 / senior responsibilities)
• Strong experience in designing and implementing enterprise networks (not only operations)
• Proven track record of working on projects (migration, rollout, transformation)
• Strong ownership mindset and ability to independently drive technical topics
• Experience acting as escalation point and handling critical incidents
• Ability to work across teams and coordinate technical activities end-to-end
• Fluent in Polish and English (mandatory)
Technologies
Core:
• Cisco networking (Catalyst / Nexus – routing & switching)
• Routing protocols: OSPF, BGP
• L2/L3 concepts: VLANs, STP, QoS
Security:
• Cisco ISE / AAA (RADIUS/TACACS+)
Enterprise:
• WLAN (WLC, RF basics, design)
• SD-WAN solutions
• Cisco SD-Access (SDA)
Nice to have ( any of this will be additional asset):
• Data Center networking (Nexus, ACI)
• Network automation (Ansible, scripting, APIs)
• Firewall technologies (Palo Alto, Fortinet, Cisco)
• Cloud networking (AWS / Azure))
Certifications
• CCNP Enterprise or higher (strongly preferred)
• Additional vendor certifications are a plus
What you’ll work on
• Large-scale enterprise environments (multi-site, campus & WAN)
• Network transformation programs and modernization initiatives
• Data center and campus network redesigns
• End-to-end delivery (design → implementation → optimization)
• Cross-country / international projects
What we offer
• Work on real engineering projects – not only BAU/support
• Opportunity to influence architecture and technical direction
• Access to certifications and advanced technical training (Cisco, cloud, security)
• Hybrid work model (Warsaw + remote)
• Collaboration with experienced engineers and architects
• Stable role in a global organization (NTT DATA)
Workplace type:
Hybrid WorkingEqual Opportunity Employer
NTT DATA is proud to be an Equal Opportunity Employer with a global culture that embraces diversity. We are committed to providing an environment free of unfair discrimination and harassment. We do not discriminate based on age, race, colour, gender, sexual orientation, religion, nationality, disability, pregnancy, marital status, veteran status, or any other protected category. Accelerate your career with us. Apply today