Private Cloud Network Architect (English & Hungarian speaker)

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.

Network Services team requires an expert-level Private Cloud Network Architect to lead the design, evolution, and governance of enterprise-grade IP fabric and container networking infrastructure across customer's private cloud environments.

This role is based in Budapest, Hungary and is strategically critical, sitting at the intersection of high-performance IP networking, Kubernetes and OpenShift platform operations, programmable data-plane infrastructure, and AI-ready fabric architecture. The role has an hybrid model, with 3 days/week working on-site.

The successful candidate will bring proven, hands-on expertise spanning large-scale IP fabric design, advanced overlay technologies, container networking (OpenShift, Kubernetes, Cilium/eBPF), Infrastructure as Code, and open-source network operating systems. They will operate as a senior technical authority embedded within the network engineering team, engaging directly with customer's architects, platform engineers, and security specialists.

Core Technology Areas

Key platforms and technologies the candidate must demonstrate expert or thorough knowledge of: Cisco NX-OS, Arista EOSE, EVPN, VxLAN, OpenShift, Kubernetes, Cilium, eBPF, Isovalent, OVN-K8S, Calico, SONiC, Smart NIC, P4, RoCEv2, Terraform, Ansible, GitOps, gNMI, GPU Fabric, Linux, Prometheus, Grafana

Qualifications & Experience

• 10+ years of progressive network engineering experience with a substantial focus on private cloud and datacenter network architecture.
• Demonstrated track record designing and delivering large-scale IP fabric deployments in enterprise or regulated financial services environments.
• Extensive hands-on production experience with Red Hat OpenShift including advanced networking, operator lifecycle management, and multi-environment operations.
• Proven production experience with Cilium, eBPF, and Isovalent Enterprise for Cilium in enterprise Kubernetes environments.
• Strong proficiency in network automation and programmability: Python, Ansible, Terraform, YANG/NETCONF, gNMI, and GitOps toolchains.
• Practical experience with SONiC in production or large-scale lab environments; familiarity with whitebox/open networking hardware ecosystem.
• Working knowledge of AI/ML network infrastructure requirements, GPU cluster networking, and RoCEv2 lossless fabric design and validation.
• Strong understanding of network security principles, IS compliance frameworks, and segmentation within regulated financial services environments.
• Excellent written and verbal communication skills; capable of producing high-quality design documentation and engaging with senior architects and cross-functional stakeholders.
• Fluency in English and Hungarian.

Desirable Criteria

• Preferred Qualifications
• Red Hat OpenShift certifications: RHCSA, RHCE, OpenShift Administration, or OpenShift Development.
• Certified Kubernetes Administrator (CKA) or Certified Kubernetes Security Specialist (CKS).
• Experience with GitOps practices and tools such as Argo CD or Flux in production Kubernetes environments.
• Knowledge of observability platforms: Prometheus, Grafana, Loki, and OpenTelemetry.
• Experience integrating Kubernetes platforms with enterprise security solutions including identity, secrets management, and policy enforcement.
• Experience supporting hybrid cloud and multi-cloud Kubernetes environments.
• Relevant network certifications: CCIE Data Center or Enterprise, Arista ACE-L5/L6, or equivalent.
• Background in financial services or regulated industries with exposure to IS compliance and audit requirements.

Workplace type:

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 70 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.

Third parties fraudulently posing as NTT DATA recruiters 

NTT DATA recruiters will never ask job seekers or candidates for payment or banking information during the recruitment process, for any reason. Please remain vigilant of third parties who may attempt to impersonate NTT DATA recruiters whether in writing or by phone in order to deceptively obtain personal data or money from you. All email communications from an NTT DATA recruiter will come from an @nttdata.com email address. If you suspect any fraudulent activity, please contact us.