Sr Systems Engineer

• Azure IoT Edge (Remote, W2 Contract)

Location:

Remote | Contract through January (likely extension) | Walmart IoT Team About the Role Join Walmart's high-impact IoT team as a Senior Systems Engineer, where you will drive the administration and automation of cutting-edge Azure IoT Edge environments at enterprise scale. You'll operate across a fleet of 11,000+ Linux-based virtual machines, ensuring seamless edge computing for one of the world's largest retailers. This is a hands-on opportunity to lead in observability, automation, and production support, collaborating with top-tier engineering teams in a fast-paced, fully remote environment. Responsibilities

• Administer, automate, and troubleshoot Azure IoT Edge devices and modules, including provisioning, patching, upgrades, and runtime management
• Plan quarterly upgrade cycles and execute IoT Edge runtime maintenance with minimal operational disruption
• Perform advanced (L3) Linux/RHEL system administration: user/access management, kernel troubleshooting, performance tuning, and root-cause analysis
• Operate and enhance observability stacks: OpenObserve (logs), Prometheus/Grafana (metrics/dashboards) across edge and cloud systems
• Manage disaster recovery execution, including DR drills and failover/failback between on-prem and cloud infrastructure
• Build and maintain CI/CD pipelines for infrastructure and application deployment
• Develop and maintain automation scripts/playbooks (Ansible, shell, Python) to streamline operations
• Respond to alerts, troubleshoot incidents, escalate per runbooks, and keep documentation current
• Collaborate cross-functionally with security, networking, and application teams Required Skills and Experience
• 10+ years in Unix/Linux system administration, with proven L3-level troubleshooting and operational excellence in production environments
• Deep hands-on experience with Azure IoT Edge (edgeAgent, edgeHub) device/module management at scale
• Advanced Linux/RHEL administration: kernel, filesystem, storage, networking, performance, security, user management
• Strong scripting and automation skills (shell, Python, Ansible/Puppet/Chef)
• Expertise in container operations (Docker) on Linux and edge devices
• Production experience with OpenObserve (log aggregation, dashboards), Prometheus, and Grafana (metrics/alerts)
• CI/CD pipeline management (build, deploy, troubleshooting) in enterprise environments
• Understanding of the IoT device lifecycle: provisioning, management, updates, decommissioning Preferred Skills
• Legacy monitoring migration (Nagios to modern stacks)
• Experience with MQTT brokers in IoT environments
• NGINX administration and tuning
• Certificate lifecycle management
• Familiarity with edge computing constraints (resource limits, intermittent connectivity)
• Incident escalation and runbook adherence
• Experience collaborating across functional teams Benefits
• Fully remote position with flexible work arrangements
• Opportunity for contract extension and potential long-term engagement
• Work with leading-edge IoT and observability technologies at enterprise scale
• Collaborate with world-class engineers in a dynamic, innovative environment
• Enhance your expertise in cloud, automation, and distributed systems How to Apply Ready to bring your Unix/Linux and Azure IoT Edge skills to a world-class Walmart engineering team?

Apply directly and join us in driving the next generation of edge computing at scale!