LTE Validation Engineer

Syntronic-LTE Validation Engineer

$90,000 - $110,000 a year

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?

Primary Role:

We are seeking a LTE / 5G Red Cap Validation Engineer to 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 emerging 5G p (Reduced Capability) technologies. Your work will directly impact device certification, carrier acceptance, and real-world user experience

• Protocol & RF Validation
• Design, develop, and execute validation test plans for LTE (Cat-1/Cat-4/Cat-M1/NB-IoT) and 5G p modems integrated into Lab
  126 devices
• Perform conformance, functional, and performance testing including attach procedures, mobility, handovers, PDU session establishment, DRX/eDRX/PSM power-saving modes, and RRC state transitions
• Validate RF parametric performance: TX power, ACLR, EVM, spectrum emissions, RX sensitivity, and blocking across LTE/5G  (FR1)
• Execute carrier acceptance testing (Verizon OTA, AT&T PTCRB, T-Mobile, Vodafone, DT, KDDI) and support GCF/PTCRB certification campaigns

Test Equipment & Lab Operations

• Hands-on execution using Rohde & Schwarz CMW
  500, CMX
  500, and Anritsu MT8000A / MD8475B callboxes 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 using Python, TTCN-3, or vendor SDKs (R&S CMWrun, Anritsu Rapid Test Designer)
• Debug & Root Cause Analysis
• Analyze modem logs (QXDM/QCAT for Qualcomm, ELT for Media Tek), Wireshark captures, and layer-3 signaling traces to isolate protocol failures
• Collaborate with modem vendors (Qualcomm, Media Tek, 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 with firmware, hardware, antenna, and systems engineering teams during EVT/DVT/PVT phases
• Support field trials with carrier partners and international deployments
• Contribute to test coverage strategy for new features: 5G Red Cap Rel-17/18, Network Slicing, NTN (Non-Terrestrial Networks)

What you'll 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 world's 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