Private Cloud Network Architect (English & Hungarian speaker)

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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:

• 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. Accelerate your career with us. Apply today