Asterism IT Solutions

Cellular DevOps Engineer

Menlo Park, CA, CA
Contracted
Experienced

Job Title: Cellular DevOps Engineer
Location: Menlo Park, CA — Onsite 5 Days/Week
Duration: 6 Months Contract- W2
Experience: 10+ Years
Work Authorization: GC, USC

Job Description

We are seeking an experienced Cellular DevOps Engineer to join a Wearables Cellular Engineering team. This role combines 5G/LTE cellular network engineering, RF lab operations, DevOps automation, Python development, and cellular test infrastructure.

The ideal candidate will have hands-on experience working with cellular networks and devices while also being comfortable building and operating automated infrastructure and test services.

Key Responsibilities

Cellular & RF Engineering

  • Configure and maintain private 5G/LTE networks, small cells, and callbox infrastructure.
  • Support NR SA, LTE, and NR-RedCap testing across multiple frequency bands.
  • Analyze and optimize RSRP, RSRQ, and SINR measurements.
  • Troubleshoot RF signal paths, cabling, attenuation, and antenna configurations.
  • Perform modem provisioning and work with QMI, DIAG, EFS, and modem configurations.
  • Execute cellular E2E testing including attach/detach, data connectivity, DNS, ping, and iperf3.
  • Support shield-box, rack, device-pairing, and cellular lab operations.

DevOps & Automation

  • Integrate cellular test suites into CI/CD pipelines.
  • Develop infrastructure automation for network configuration, ACLs, DNS, routing, and proxy filters.
  • Build production automation services using Python.
  • Work with databases including MySQL, schema migrations, and configuration/state management.
  • Implement monitoring, metrics, alerting, and service health tracking.
  • Maintain device inventory, registration, reservation, and asset-management tooling.

Test Framework & Tooling

  • Develop configuration-driven cellular E2E tests using JavaScript/Jest.
  • Build Python/Thrift integrations for callbox control and queries.
  • Develop modem-management utilities.
  • Support lab networking including PoE, VLANs, port management, and network configuration.

Required Qualifications

  • 3+ years of cellular/wireless engineering, DevOps, or combined infrastructure experience.
  • Hands-on 4G LTE and/or 5G NR experience.
  • Experience with cellular network operations, RF measurements, and UE attach/registration.
  • Strong Python programming skills.
  • Working knowledge of JavaScript.
  • Strong Linux administration and shell scripting.
  • Experience with networking concepts including VLANs, static routing, iptables/nftables.
  • Experience with embedded device interfaces such as adb, fastboot, or serial.
  • Experience with at least two of:
    • CI/CD
    • Infrastructure-as-Code
    • Configuration management
    • Database administration
    • Monitoring/observability
  • Strong troubleshooting ability across RF, modem, software services, and databases.

Preferred Qualifications

  • Amarisoft or similar small-cell/callbox platforms.
  • Keysight or Rohde & Schwarz cellular test equipment.
  • Qualcomm QXDM, QMI, DIAG, NV item provisioning, EFS.
  • Wearable or IoT device testing.
  • Thrift/gRPC service development.
  • Jest, pytest, or similar test automation frameworks.
  • Network security, ACL, and firewall policy management.
  • Shielded or anechoic test environments.
  • MCTP/NCSI or similar baseboard management protocols.
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