Engineer, Systems Engineer
Job in
San Diego, San Diego County, California, 92121, USA
Listed on 2026-07-26
Listing for:
eTeam Inc.
Full Time
position Listed on 2026-07-26
Job specializations:
-
Engineering
Systems Engineer, Wireless / 5G, Test Engineer, Telecoms Engineering
Job Description & How to Apply Below
Location:
San Diego, CA
Duration: 12+ Months
Job Summary
We are seeking a Modem System Test Engineer to join the UICC/eSIM Modem System Test team. In this role, you will be responsible for system-level testing and validation of the Modem–UICC interface, along with eSIM/iSIM operating system and platform validation across 5G, LTE, and WCDMA mobile technologies.
You will work on end-to-end validation of modem features, SIM/eSIM functionality, Remote SIM Provisioning (RSP), and test automation while collaborating closely with software development, application engineering, and program management teams.
Key Responsibilities- Perform system-level testing and validation of the Modem–UICC interface on 5G, LTE, and WCDMA devices.
- Validate eSIM/iSIM operating systems, platforms, applications, profiles, and Multiple Enabled Profiles (MEP).
- Execute end-to-end testing of voice, data, and SMS services across Single SIM and Dual SIM devices.
- Validate modem features impacting the UICC interface, including IMS, VoLTE, and VoNR.
- Test Remote SIM Provisioning (RSP) using GSMA SGP.
22 and SGP.
32 specifications. - Verify SIM Toolkit (STK) functionality using test applets on eSIM and iSIM platforms.
- Develop test plans, execute test cases, analyze results, troubleshoot issues, and track defects.
- Perform protocol log analysis using QXDM and other diagnostic tools.
- Support test automation using Python, Java, or C++.
- Work with wireless test equipment from Keysight, Rohde & Schwarz (R&S), and Anritsu.
- Collaborate with cross-functional teams to ensure product quality and successful commercialization.
- Bachelor's degree in Electronics, Telecommunications, Computer Engineering, or a related field (Master's preferred).
- 3+ years of experience in Mobile Test Engineering, Wireless Validation, or Modem Testing.
- Strong understanding of 5G, LTE, IMS, VoLTE, and VoNR technologies.
- Experience with SIM, USIM, UICC, eSIM, or iSIM technologies.
- Knowledge of Android smartphone platforms.
- Strong debugging, troubleshooting, and protocol log analysis skills.
- Experience using QXDM for log collection and analysis.
- Experience with Python, Java, or C++ for test automation.
- Experience with GSMA SGP.
22 and SGP.
32 Remote SIM Provisioning. - Knowledge of Global Platform (GP), ETSI, TCA, and 3
GPP specifications. - Experience with SIM Toolkit (STK) and Toolkit Test Applets.
- Hands-on experience with Keysight, Rohde & Schwarz (R&S), and Anritsu wireless test equipment.
- Experience working with handset OEMs, chipset vendors, or wireless network operators.
Wireless Technologies
- 5G
- LTE
- WCDMA
- IMS
- VoLTE
- VoNR
SIM Technologies
- UICC
- USIM
- eSIM
- iSIM
- Remote SIM Provisioning (RSP)
- SIM Toolkit (STK)
Tools & Platforms
- QXDM
- Keysight
- Rohde & Schwarz (R&S)
- Anritsu
- SM-DP+
- Comprion
- FIME
Programming
- Python
- Java
- C++
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