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LTE Validation Engineer

Syntronic

Job Location:

San Jose, CA - USA

Yearly Salary: $ 90000 - 110000

Posted: 28 August 2026 (Yesterday)

Application Deadline: 25 November 2026

Vacancies: 1 Vacancy

Job Summary

$90000 - $110000 a year

Syntronic-LTE Validation Engineer

Are you ready to be part of a leading global engineering design house specializing in the design and development of state-of-the-art embedded hardware electronics and electro-mechanics

What were looking for:

Highly motivated professionals

Motivated test technician

Professionals with ability to work both with in-house projects and on-site assignments at our customers locations

Primary Role:We are seeking aLTE / 5G RedCap Validation Engineerto lead cellular protocol and RF validation. You will be responsible for end-to-end testing of cellular modems integrated into consumer IoT products ensuring flawless performance across LTE Cat-M Cat-1bis and emerging5G NR RedCap (Reduced Capability)technologies. Your work will directly impact device certification carrier acceptance and real-world user experience

Key Responsibilities

Protocol & RF Validation

Design develop and executevalidation test plansfor LTE (Cat-1/Cat-4/Cat-M1/NB-IoT) and5G NR RedCapmodems integrated into Lab126 devices
Performconformance functional and performance testingincluding attach procedures mobility handovers PDU session establishment DRX/eDRX/PSM power-saving modes and RRC state transitions
ValidateRF parametric performance: TX power ACLR EVM spectrum emissions RX sensitivity and blocking across LTE/5G NR bands (FR1)
Executecarrier acceptance testing(Verizon OTA AT&T PTCRB T-Mobile Vodafone DT KDDI) and supportGCF/PTCRB certificationcampaigns

Test Equipment & Lab Operations

Hands-on execution usingRohde & Schwarz CMW500 CMX500 andAnritsu MT8000A / MD8475Bcallboxes for signaling and non-signaling test modes
Configure end-to-end call scenarios:VoLTE VoNR SMS over IMS ePDG/Wi-Fi calling data throughput (DL/UL) CA (Carrier Aggregation) MIMO
Set up and operate supporting instrumentation: spectrum analyzers vector signal generators network emulators RF shielded chambers fading simulators (e.g. Spirent Keysight PROPSIM)
Automate test execution usingPython TTCN-3 or vendor SDKs (R&S CMWrun Anritsu Rapid Test Designer)

Debug & Root Cause Analysis

Analyzemodem logs(QXDM/QCAT for Qualcomm ELT for MediaTek)Wireshark captures andlayer-3 signaling tracesto isolate protocol failures
Collaborate with modem vendors (Qualcomm MediaTek Sequans Sony Altair) and chipset teams to drive firmware fixes
Reproduce field issues in the lab and provide detailed defect reports with RF/protocol evidence

Cross-functional Collaboration

Partner withfirmware hardware antenna and systems engineeringteams during EVT/DVT/PVT phases
Supportfield trialswith carrier partners and international deployments
Contribute to test coverage strategy for new features:5G RedCap Rel-17/18 Network Slicing NTN (Non-Terrestrial Networks)

What youll like about us:

Company Culture outstanding people and a flexible work environment.
Career Growth Opportunities being a design house keeps variety in your work. New opportunities happening all the time!
Global Design House since Syntronic is a global Design House you will probably work with in a team with engineers from other Syntronic sites (Canada Sweden China Malaysia Japan).

Who we are:

Syntronic provides our customers a complete portfolio of professional services to support their product development including research & development new product introduction manufacturing and aftermarket services. We adopt the latest technologies in electronics design and software development with a pool of technically skilled staff around the world. Among our customers and partners are some of the worlds most technically-intensive businesses and organizations. This pushes us forward in designing to satisfy our customers needs with a focus on quality competence capacity and continuity.

Syntronic has today over 2000 employees in 8 countries.

Syntronic values diversity in the workplace. All qualified applicants will receive consideration for employment without regard to race color religion sex sexual orientation gender identity national origin disability or protected veteran status. If you require accommodation due to a disability at any time during the recruitment and/or assessment process please contact our recruiting team and we will make all reasonable efforts to accommodate your request

We may use artificial intelligence (AI) tools to support parts of the hiring process such as reviewing applications analyzing resumes or assessing responses and identifying potential inconsistencies or verification signals in application materials based on available information. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed please contact us.

Required Experience:

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