Cellular DevOps Engineer - Wearables Connectivity (Engineering Labs)

Posted today

vbeyondAtherton (CA)

Computer Systems Engineers/Architects Wireless Telecommunications Carriers (except Satellite)

SENIORITY

Senior

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About the role

Cellular DevOps Engineer - Wearables Connectivity (Engineering Labs) Network Infrastructure & Labs - Cellular Connectivity Menlo Park (100% onsite at Client office) 6 months contract to start with

Note: Only USC and GC need to apply for this role who can work on W2 Tax-Term.

Role Overview: We are seeking a Cellular-DevOps Engineer to join our Wearables Cellular team within Engineering Labs. This role sits at the intersection of public and private 5G/LTE cellular network engineering and DevOps automation, supporting the development and testing of next-generation wearable devices with cellular connectivity. You will be responsible for building, operating, and automating the infrastructure that enables end-to-end cellular testing - from RF signal path optimization and modem provisioning to CI/CD pipeline integration and automated IP management services. This is a hands-on engineering role that requires both hardware lab familiarity and strong software/automation skills.

Key Responsibilities: Cellular & RF Engineering (40%)Private 5G/LTE Network Operations: Configure and maintain small-cell/callbox infrastructure supporting NR SA, LTE, and NR-RedCap 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 NR attach/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 DevOps & 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 - 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, NR SA, NR-RedCap, and attach/detach scenarios Callbox Integration Tooling: Develop and maintain Python/Thrift bridges for callbox queries and control RPCsModem 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, DevOps, or a combined infrastructure role
Private cellular network experience: Hands-on with 4G LTE and/or 5G NR - 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: CI/CD pipelines, Infrastructure-as-Code, configuration management, database administration, or monitoring systems
Debugging mindset: Ability to troubleshoot across the full stack - from RF signal levels and modem firmware to service RPCs and database queries

Preferred Qualifications:

Experience with Amarisoft or similar small-cell/callbox platforms (Keysight, R&S)
Familiarity with Qualcomm modem tooling (QXDM, QMI, DIAG, NV item provisioning, EFS management)
Exposure to wearable/IoT device development or testing
Experience with Thrift/gRPC service development and service mesh architectures
Knowledge of MCTP/NCSI or other baseboard management protocols
Background in test automation frameworks (Jest, pytest, or similar)
Familiarity with network security tooling (ACL generation, firewall policy management)
Experience operating shielded/anechoic test environments
TechnicalEnvironmentDomainTechnologiesCellularAmarisoft gNB/eNB, 5G NR SA/NSA, LTE, NR-RedCap, QMI/DIAG, iperf3, commercial carrier networks (public signal testing)

Languages Python, JavaScript (Jest), Bash, C (firmware) Infra & DevOpsCI/CD pipelines, configuration management, MySQL, time-series monitoring, DNS automation Test Frameworks Jest (E2E), continuous integration gates, automated test orchestration DevicesWearable prototypes, development boards, reference UEsNetworkingVLANs, static routing, PoE, proxy configuration, DNSHardwareShield boxes, RF cables/attenuators, rack infrastructure'What We're Looking For' Beyond technical skills, we value the following traits in candidates for this role: Quick Learner: You pick up new tools, protocols, and systems fast - whether it's a new modem chipset, a CI framework you haven't used before, or an unfamiliar RF measurement technique. You don't wait to be taught; you dig in and figure it out. Self-Starter: You identify problems and fix them without waiting for someone to assign the work. When you see a gap in automation or a flaky test, you take ownership. Comfortable with Ambiguity: This role spans hardware, software, and RF - you won't always have a playbook. You're energized (not paralyzed) by open-ended problems. Collaborative: You work across disciplines (firmware, RF, DevOps, test engineering) and communicate clearly with people who have different technical backgrounds. You share knowledge freely. Bias Toward Action: You ship incremental improvements rather than waiting for the perfect solution. You're comfortable iterating in production lab environments where speed matters. Detail-Oriented Under Pressure: RF and modem work demand precision - a wrong attenuation value or misconfigured NV item can waste hours. You double-check your work and build safeguards into your automation.

What Success Looks Like:

(First 6 Months)
Month 1-2: Onboard to the cellular lab environment; gain hands-on familiarity with the callbox infrastructure, wearable devices, and the existing test suite
Month 2-3: Own and extend one automation pipeline (e.g., IP management or device inventory); deliver at least one improvement to reliability or throughput
Month 3-4: Author or extend a cellular E2E test covering a new band/RAT/scenario; integrate it into the CI pipeline as an automated gate
Month 4-6: Drive an infrastructure improvement end-to-end - e.g., automated modem provisioning, callbox health monitoring, or test fleet scaling

LocationThis role works closely with wearable connectivity and device infrastructure teams to ensure reliable cellular testing at scale.

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