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Device Test Engineer

Job in Greenwood Village, Arapahoe County, Colorado, USA
Listing for: SIDRAM TECHNOLOGIES
Full Time position
Listed on 2025-12-01
Job specializations:
  • Engineering
    Systems Engineer, Wireless / 5G
Job Description & How to Apply Below

Overview

Job Title:

Device Test Engineer

Location:

Greenwood Village, CO 80111 (onsite)

Job Order Type:
Contract - Onsite

Job Type: 06+ Months

Client Company Name:
Charter Communications

Contract Details: 40 Hours

Work Authorization: USC, GC, GC-EAD

No. of positions: 01

Submissions Quota: 02

Primary Responsibilities/Tasks
  • Min 5+ years of experience with different cellular/mobile devices based on iOS operating systems
  • Strong knowledge of 3

    GPP 5G SA/NSA, 4G LTE mobile technologies and architecture
  • Good understanding of 3

    GPP standards; signalling call flows, Layers 1/2/3
  • Develop and execute device test plans, and validate mobile device cellular feature capabilities (5G, VoNR, VoLTE, Vo Wi Fi , LTE)
  • Experience with different cellular modem chipsets – Qualcomm (QCOM), Media Tek (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 3

    GPP 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, Media Tek, Samsung, Intel chipsets
  • Able to own tasks, work independently, and coordinate with vendors
Nice To Have
  • Python scripting (basic)
Seniority level
  • Not Applicable
Employment type
  • Contract
Job function
  • Engineering and Information Technology
Industries
  • Technology, Information and Internet
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