Cellular DevOps Engineer

Our client, A Fortune 100 - Global Technology companyis seeking a Cellular Devops Engineer to join their team.

Job Title:Cellular Devops Engineer

Location: Menlo Park, CA

Pay Range: $70-90/HR on W2

Job Description :

Key Responsibilities
Cellular & RF Engineering (40%)
Private 5G/LTE Network Operations:
Configure and maintain small-cell/callbox infrastructure supporting , LTE, and
-Red Cap across multiple frequency bands (n2, n5, n25, n66, B2, B5, B66).
RF Signal Path Management:
Optimize RSRP/RSRQ/SINR measurements in shielded test environments; troubleshoot signal path issues including cabling, attenuation, and antenna configuration.
Device Modem Provisioning:
Manage modem calibration file provisioning, EFS (Embedded File System) operations, QMI/DIAG interfaces, and modem mode configuration.
Cellular E2E Test Execution:
Run and validate h/detach cycles, data path verification (ping, DNS, iperf3), GNSS integration, and multi-RAT connectivity scenarios.
Hardware Lab Operations:
Stage and pair devices in shield boxes, manage rack equipment mapping, coordinate with callbox vendors, and maintain reference device baselines.

Dev Ops & Automation (40%)
CI/CD Pipeline Integration:
Configure and maintain automated test lanes, both blocking and non-blocking, for cellular test suites within continuous integration frameworks.
Infrastructure-as-Code:
Manage network ACLs, network configuration pushes, proxy filters, and DNS automation pipelines.
Service Development (Python):
Build and maintain automated services such as IP management pipelines (static routing, DNS verification, asset tagging, batch processing).
Database & State Management:
Administer MySQL databases, schema migrations, configuration management systems, and service state stores.
Monitoring & Observability:
Instrument services with time-series metrics, manage alerting thresholds, respond to health alerts, and track SLA compliance.
Inventory & Asset Management:
Extend and maintain device inventory systems, including CLI tools, reservation workflows, and device registration pipelines.
Test Framework & Tooling (20%)
E2E Test Development:
Author config-driven cellular E2E tests (JavaScript/Jest) covering LTE, ,
-Red Cap, and attach/detach scenarios.
Callbox Integration Tooling:
Develop and maintain Python/Thrift bridges for callbox queries and control RPCs.
Modem Utility Libraries:
Contribute to shared libraries for device-side modem management (mode switching, airplane mode, cellular measurements).
Lab Network Tooling:
Build and maintain lab network management features (PoE control, port management, VLAN allocation).

Required Qualifications
3+ years of experience in cellular/wireless engineering, Dev Ops, or a combined infrastructure role.
Private cellular network experience:
Hands-on experience with 4G LTE and/or 5G , including cell planning, RF measurements (RSRP, RSRQ, SINR), and UE attach/registration flows.
Programming proficiency:
Python (primary) with working knowledge of JavaScript; ability to write production services and test automation.
Linux systems administration:
Comfortable with shell scripting, systemd services, networking (VLANs, static routing, iptables/nftables), and embedded device interaction (adb, fastboot, serial).
Infrastructure automation:

Experience with at least two of the following:
CI/CD pipelines
Infrastructure-as-Code
Configuration management
Database administration
Monitoring systems
Debugging mindset:
Ability to troubleshoot across the full stack, from RF signal levels and modem firmware to service RPCs and database queries.

If this is a role that interests you and you’d like to learn more, click apply now and a recruiter will be in touch with you to discuss this great opportunity. We look forward to speaking with you!

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