Network Engineer

Make an impact with NTT DATA

Join a company that is pushing the boundaries of what is possible. We are renowned for our technical excellence and leading innovations, and for making a difference to our clients and society. Our workplace embraces diversity and inclusion – it’s a place where you can grow, belong and thrive.

Your day at NTT DATA

The Network Engineer is a subject matter expert responsible for the operational design, implementation, maintenance, and optimization of enterprise network environments.

This is a hands-on, operational role, focused on stability, performance, and continuous improvement of network services primarily within Poland, with occasional participation in international initiatives.

Key responsibilities

• Design, implement, operate, and maintain LAN and WAN network environments.
• Configure, deploy, and manage network devices, primarily Cisco routers, switches, and wireless infrastructure.
• Operate and maintain routing and switching technologies, including VLANs, OSPF, BGP, QoS, and related enterprise protocols.
• Support and maintain WAN connectivity, including branch and campus networks.
• Perform incident handling, root cause analysis, and advanced troubleshooting of network issues.
• Monitor network performance and proactively identify stability or capacity risks.
• Maintain accurate and up-to-date network documentation (diagrams, configurations, operational procedures).
• Collaborate with internal teams and, when required, support international network-related projects.
• Contribute to continuous improvement of network standards and operational best practices.

Required skills and experience

• 3+ years of hands-on experience in a network engineering or network operations role.
• Language: Polish and English ( both mandatory)
• Strong knowledge of enterprise networking fundamentals (LAN/WAN).
• Practical experience with: Routing & switching (OSPF, BGP) ; VLANs, QoS; Wireless LAN environments
• Experience in operational network support and maintenance.
• Ability to troubleshoot complex network issues in production environments.
• Good documentation habits and the ability to clearly communicate technical topics.
• Good command of English, both spoken and written (international collaboration).
• Technologies: Main stack (must-have): Cisco networking technologies (routing, switching, wireless); Nice to have: Cisco SD-Access (SDA) and/or SD‑WAN; Fortinet (FortiGate / Fortinet ecosystem);
• Basic understanding of cloud networking concepts in: AWS and Microsoft Azure
• Certifications : CCNP Enterprise – preferred; CCNA or equivalent networking certification – beneficial; Other vendor certifications are a plus but not required

Workplace type:

Hybrid Working

About NTT DATA

NTT DATA is a $30+ billion business and technology services leader, serving 75% of the Fortune Global 100. We are committed to accelerating client success and positively impacting society through responsible innovation. We are one of the world’s leading AI and digital infrastructure providers, with unmatched capabilities in enterprise-scale AI, cloud, security, connectivity, data centers and application services. Our consulting and industry solutions help organizations and society move confidently and sustainably into the digital future. As a Global Top Employer, we have experts in more than 50 countries. We also offer clients access to a robust ecosystem of innovation centers as well as established and start-up partners. NTT DATA is part of NTT Group, which invests over $3 billion each year in R&D.

Equal 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. Join our growing global team and accelerate your career with us. Apply today.

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