Cloud Infra Support Engineer

United States Digital Space LLC; Singapore; On-site; SGD 140,000 - 210,000; Full time

Job summary

United States Digital Space LLC in Singapore is seeking a senior Cloud Infra Support Engineer to ensure stable NFVI and CNIS operations for 5G/IMS workloads. You will lead incidents end-to-end, design, implement, and continuously improve cloud and network platforms, including data fabric, Kubernetes, and storage subsystems.

The role requires 10+ years in cloud infrastructure and network operations, with hands-on CNIS/NFVI experience.

Qualifications

• Bachelor's or Master's degree in Computer Science, Telecommunications, Engineering, or equivalent.
• 10+ years hands-on cloud infra and network ops experience.
• Strong experience with NFVI/CNIS deployments in live environments.

Responsibilities

• Operate NFVI and CNIS platforms across production, pre-production and lab environments.
• Provide deep tech support for CNIS data fabric, underlay/overlay routing, SDN/SDI integration, and Kubernetes clusters.
• Lead incidents/end-to-end and translate post-incident reviews into infra improvements and runbooks.
• Contribute to high-level and low-level design for NFVI/CNIS deployments and migrations.
• Optimize performance and resiliency through capacity and traffic analysis; tune routing, fabric, storage, and workload placement.
• Plan and execute software upgrades, patching, and hardware refresh with cross-team coordination.

Skills

Kubernetes

Cloud infrastructure

Network operations

Python scripting

Ansible

Terraform

Monitoring

CI/CD

Education

Bachelor's or Master's degree in Computer Science/Engineering

Tools

VMware

OpenStack

KVM

Job description

Join our Team

About this opportunity:

The Cloud Infra Support Engineer ensures the stable, secure, and resilient operation of the company NFVI and CNIS-based cloud infrastructure, including CEE, SDN, SDI, data fabric, storage, and Kubernetes. This senior technical role combines hands-on operations (incident, problem, and change management) with the design, implementation, and continuous improvement of the cloud and network platforms that host 5G and IMS workloads. You will serve as a subject matter expert for CNIS and NFVI, guiding customers and internal teams on best practices, resolving complex issues, and driving infrastructure changes that improve performance, resiliency, and operational efficiency.

What you will do:

• Operate and support the company NFVI and CNIS platforms across production, pre-production, and lab environments, ensuring high availability for 5G/IMS and other VNFs/CNFs.
• Provide deep technical support for CNIS data fabric (compact and scalable), Anycast Gateway, underlay/overlay routing (BGP, EVPN/VXLAN, ECMP), SDN/SDI integration, CEE and Kubernetes clusters, and storage subsystems (block, object, and shared file).
• Lead incident and problem management: own complex incidents end-to-end from triage to root cause analysis and permanent fix, and translate post-incident reviews into infrastructure improvements and runbook updates.
• Contribute to HLD/LLD for NFVI and CNIS deployments, upgrades, expansions, and migrations, ensuring alignment with the company reference architectures.
• Optimise performance and resiliency by analysing capacity, traffic patterns, and failure scenarios, and by implementing routing, fabric, storage, and workload placement tuning against SLAs.
• Plan and execute software upgrades, patching, and hardware refresh, coordinating with product units and customer teams on compatibility and regression testing.
• Develop and maintain automation (Ansible, Python, Terraform) and reusable runbooks for deployment, configuration, validation, and troubleshooting.
• Configure and maintain monitoring, logging, and alerting to proactively detect and resolve issues before they impact services.
• Collaborate with CU, PDU, design, and customer operations teams, providing clear communication to technical and non-technical stakeholders, and mentor junior engineers.

The skills you bring:

• Bachelor's or Master's degree in Computer Science, Telecommunications, Engineering, or equivalent practical experience.
• 10+ years of hands‑on experience in cloud infrastructure and network operations, preferably in telecom or large‑scale distributed environments.
• Strong experience with the company NFVI and/or CNIS deployments in live customer or large internal networks.
• Proven track record operating data center fabrics (Clos, spine/leaf, Anycast Gateway), production Kubernetes/CEE environments hosting CNFs, and telco storage platforms.
• IP routing (IPv4/IPv6), BGP, EVPN/VXLAN, ECMP, and Anycast Gateway concepts.
• Data center switches and routers, including multi‑VRF, LAG/MC‑LAG, and high‑availability designs.
• Virtualization (VMware, OpenStack, KVM) and SDN/SDI integration with NFVI/CNIS.
• Kubernetes cluster operations, CNF deployment patterns, ECFE, and storage integration.
• Storage architectures (SAN, NAS, SDS) and IO path troubleshooting.
• Scripting (Python, Bash) and automation (Ansible, Terraform).
• Observability stacks (Prometheus, Grafana, ELK, or similar).

Why join the company?

At the company, you’ll have an outstanding opportunity. The chance to use your skills and imagination to push the boundaries of what’s possible. To build solutions never seen before to some of the world’s toughest problems. You’ll be challenged, but you won’t be alone. You’ll be joining a team of diverse innovators, all driven to go beyond the status quo to craft what comes next.

Encouraging a diverse and inclusive organization is core to our values at the company, that's why we champion it in everything we do. We truly believe that by collaborating with people with different experiences we drive innovation, which is essential for our future growth. We encourage people from all backgrounds to apply and realize their full potential as part of our the company team. the company is proud to be an Equal Opportunity Employer. learn more.

Primary country and city:

Singapore (SG) || Singapore