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# Device Test Engineer

- **Company:** Sidram Technologies
- **Location:** Greenwood Village, CO, United States
- **Experience:** Expert
- **Contract:** Permanent contract
- **Skills:** Mobile Broadband Modems, LTE (Telecommunication), Computer Programming, Software Debugging, Python (Programming Language), Log Analysis, Wi-Fi Technology, Data Logging, Hardware Testing
- **Published:** November 3, 2026
- **Apply:** https://www.thejobnetwork.com/job/49e3ea80-bc02-4e3c-be1e-bdff68bb8d33/device-test-engineer

## About the Role

* Min 5+ Years of Experience with different Cellular/Mobile Devices based on iOS operating systems
 * Strong knowledge of 3GPP 5G SA/NSA, 4G LTE mobile technologies and architecture.
 * Good understanding of 3GPP standards; signalling call flows, Layers 1/2/3
 * Develop and execute device test plans, and validate Mobile device cellular feature capabilities 5G, VoNR, VoLTE, VoWiFi, LTE)
 * Experience with different cellular modem chipsets - Qualcomm (QCOM), MediaTek (MTK), Samsung (LSI), etc
 * Experience with modem logging/analysis tools such as QXDM, QPST, XCAL, XCAP
 * Familiarity with SIM / eSIM design and provisioning flows
 * Experience in testing Wi-Fi and Passpoint configurations (HS2.0/802.1x/WPA3)
 * Analyze, determine, and document issues; Communicate testing progress / technical reports
 * Basic programming skills, especially in Python
 * Is Proactive and works independently with minimal supervision

Key Must-Haves:

 * iOS Debug expertise (mandatory)
 * Skilled in log analysis (70%) and device testing (30%)
 * Strong in 5G SA/NSA, 4G LTE, VoLTE, VoNR
 * Excellent in Wi-Fi
 * Deep knowledge of 3GPP standards, signalling call flows (Layers 1/2/3)
 * Hands-on with SIM/eSIM (critical)
 * QXDM expertise (mandatory) + other modem tools (QPST, XCAL, XCAP)
 * Experience with Qualcomm, MediaTek, Samsung, Intel chipsets
 * Able to own tasks, work independently, and coordinate with vendors