Senior Linux Systems Engineer – Government Secured On-Site

wekatest; United States; Remote; USD 150,000 - 200,000; Full time

Job summary

wekatest is seeking an experienced post-sales technical support engineer to own government and special-program customers running Linux-based infrastructure in secure environments. Diagnose issues across the full stack—from applications to compute hardware, networking, storage, and cloud—and coordinate engineering escalations while acting as the customer’s primary contact.

On-site work is common due to restricted access.

Qualifications

• Bachelor’s degree in computer science, engineering, or related field, or equivalent practical experience.
• 10+ years in customer-facing technical support, sustaining engineering, or systems engineering for Linux enterprise infrastructure.
• Strong Linux administration skills (RHEL/Ubuntu), kernel, networking, storage, and drivers; experience with distributed storage or parallel file systems.
• Knowledge of high-performance networking (RDMA, RoCE, InfiniBand, Ethernet) and structured debugging/performance analysis.
• Track record resolving complex distributed-systems issues with engineering teams on defect reproduction and root-cause evidence.
• Strong technical writing and communication skills, including support during high-visibility incidents.
• Willingness to work flexible hours, provide on-call support, and enter secure facilities; US citizenship, TS/SCI clearance, and DoD 8140 certification required.

Responsibilities

• Manage customer cases from triage through troubleshooting, communication, escalation, and resolution.
• Isolate faults across multi-layered systems including application, GPU/compute, client, network, storage, and cloud.
• Diagnose incidents on site in secure facilities and gather evidence per customer security rules.
• Provide engineering teams with reproducible steps, diagnostics, and root-cause hypotheses; keep customers informed during escalation.
• Install, upgrade, and maintain systems in hardened environments following security controls and media-handling procedures.
• Write and maintain technical support articles, share issues with development, and support pre-sales engineers and partners.
• Participate in an on-call rotation and travel domestically as required.

Skills

Linux admin

RHEL/Ubuntu

Networking

Storage

Kernel debugging

Root-cause analysis

Technical writing

On-call support

Security clearances

DoD 8140 familiarity

Education

Bachelor's degree in Computer Science or Engineering

Equivalent practical experience

Tools

Kubernetes

Docker

Python

Ansible

Terraform

GPUDirect Storage

NVIDIA DGX

RDMA/InfiniBand

Job description

wekatest is seeking an experienced post-sales technical support engineer to own government and special-program customers running Linux-based infrastructure in secure environments. Diagnose issues across the full stack—from applications to compute hardware, networking, storage, and cloud—and coordinate engineering escalations while acting as the customer’s primary contact.

On-site work is common due to restricted access.