Network HPC Engineer

Cymansys Solutions LLC
Ashburn, VA

Title Network HPC Engineer
Location 5 Days Onsite in Ashburn, VA
Duration 12 Months



Job Description
The client has adjusted this to focus on 60% networking skills and 30% Linux/CICD, 10% HPC.

Key Responsibilities:

o Design and deploy high-throughput, low-latency network systems to support global infrastructure footprint.

o Troubleshoot and optimize Linux-based networking stacks across thousands of nodes.

o Tune Linux kernel networking parameters for performance (RQ affinity, socket buffers, MTU, etc.).

o Automate network provisioning, monitoring, and diagnostics using Python, Ansible, Terraform, or equivalent tools.

o Implement and manage L2/L3 network topologies, including EVPN-VLAN, BGP, OSPF, and static routing.

o Support and troubleshoot Infiniband, RoCEv2, SR-IOV, or smartNIC-based deployments.

o Analyze performance metrics to identify and resolve packet loss, congestion, jitter, and other network anomalies.

o Integrate telemetry and logging solutions using tools such as Prometheus, Grafana, and sFlow/NetFlow.

o Collaborate with security and platform teams to enforce network segmentation, ACLs, and policy enforcement.

o Participate in design reviews, capacity planning, and incident response for critical infrastructure.

Minimum Qualifications:

o Bachelor's or Master's degree in Computer Science, Electrical Engineering, or equivalent experience.

o 5+ years of experience as a Network Engineer working in Linux-dominant environments.

o Strong understanding of TCP/IP stack, multicast, DNS, DHCP, NAT, and Qos.

o Hands-on experience with network configuration on Linux systems (e.g., Netplan, systema-networkd, NetworkManager).

o Proven skills in scripting and automation (e.g., Python, Bash, Git).

o Experience deploying and managing enterprise-grade switches, routers, and NICs (e.g., Arista, Juniper, Mellanox, Broadcom).

o Ability to troubleshoot across physical, data link, and network layers using tools like topdump, iperf, ethtool, nmap, etc.

Preferred Qualifications:

o Experience in hyperscale infrastructure, supporting Al/ML or cloud-scale services.

o Familiarity with internal tools or similar platforms at scale.

o Understanding of network security principles, including firewalls, VPNs, microsegmentation, and secure provisioning.

o Experience with zero-touch provisioning, out-of-band management, and network bootstrap pipelines.

Best Regards,

Rajesh(Ken)

Cymansys Solutions LLC

Email: [email protected]

Tel. 512.503.2202

Posted 2025-08-07

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