Cellular DevOps Engineer
Overview:
In this role you support private cellular networks through RF engineering and DevOps, enabling reliable 4G/5G performance and automated testing. You work cross-functionally to configure lab infrastructure, run end-to-end tests, and build scalable automation services. You'll shape how cellular test lanes integrate into CI/CD and ensure system health and asset management. This is a hands-on position with a focus on delivering robust test automation and network operations at scale.
Responsibilities:
- Configure and maintain small-cell/callbox infrastructure for NR SA, LTE, NR-RedCap across multiple bands
- Optimize RF measurements and troubleshoot signal-path issues in lab environments
- Manage modem provisioning, EFS operations, and QMI/DIAG interfaces
- Execute cellular end-to-end tests including attach/detach, data-path verification, GNSS, and multi-RAT scenarios
- Stage devices, manage rack mappings, and coordinate with callbox vendors in hardware labs
- Configure and maintain automated test lanes within CI/CD frameworks
- Manage network ACLs, config pushes, proxy filters, and DNS automation pipelines
- Develop automated services (Python) for IP management, routing, DNS verification, and asset tagging
- Administer MySQL databases, migrations, and service state stores
- Instrument services with time-series metrics, alerting, and SLA tracking
- Extend device inventory systems and reservation/workflows
- Develop E2E tests (JavaScript/Jest) for LTE/NR scenarios
- Create Python/Thrift bridges for callbox queries and control RPCsBuild lab network tooling including PoE control and VLAN allocation
Key requirements:
- 3+ years in cellular/wireless engineering, DevOps, or related infra role
- Hands-on 4G LTE and/or 5G NR experience with RF measurements and UE flows
- Proficiency in Python; working knowledge of JavaScriptLinux systems administration; shell scripting, systemd, VLANs, routing, and embedded device interaction
- Experience with CI/CD pipelines and Infrastructure-as-Code
- Database administration and configuration management familiarity
- Troubleshooting across RF, firmware, services, and databases
- Troubleshooting mindset
- Cross-functional collaboration
- Proactive problem solving
- Python programming
- JavaScript programming
- Linux system administration