> Markdown version of [/jobs/ext/2850571-lte-5g-redcap-validation-engineer](https://www.wearedevelopers.com/jobs/ext/2850571-lte-5g-redcap-validation-engineer). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # LTE / 5G RedCap Validation Engineer - **Company:** Syntronic R&D USA - **Location:** Sunnyvale, CA, United States - **Contract:** Permanent contract - **Skills:** LTE (Telecommunication), Systems Engineering, Code Coverage, Software Debugging, Firmware, Python (Programming Language), Test Execution Engine, Wireshark, Wi-Fi Technology, Performance Testing, 5G NR - **Published:** September 11, 2026 - **Apply:** https://www.thejobnetwork.com/job/72c686a8-9f59-4d73-8b17-43b1e4605a48/lte-validation-engineer ## About the Role * Highly motivated professionals * Motivated test technician * Professionals with ability to work both with in-house projects and on-site assignments at our customers' locations ## Description 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?, Protocol & RF Validation * Design, develop, and execute validation test plans for LTE (Cat-1/Cat-4/Cat-M1/NB-IoT) and 5G NR RedCap modems integrated into Lab126 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 NR bands (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 CMW500, CMX500, 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 MediaTek), Wireshark captures, and layer-3 signaling traces to 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 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 RedCap Rel-17/18, Network Slicing, NTN (Non-Terrestrial Networks) ## Related Videos - [Unlocking the potential of Digital & IT at Vodafone](https://www.wearedevelopers.com/videos/602-unlocking-the-potential-of-digital-it-at-vodafone) - [How I saved 200K/yr in direct costs writing 0 code lines in K8s](https://www.wearedevelopers.com/videos/1055-how-i-saved-200k-yr-in-direct-costs-writing-0-code-lines-in-k8s) - [Playing Pong on a shoulder press machine](https://www.wearedevelopers.com/videos/100140-playing-pong-on-a-shoulder-press-machine) - [Unleash the power of 5G in your code: transform your apps](https://www.wearedevelopers.com/videos/1567-unleash-the-power-of-5g-in-your-code-transform-your-apps) - [MySQL Protocol Features You Should Be Aware Of](https://www.wearedevelopers.com/videos/100267-mysql-protocol-features-you-should-be-aware-of) - [Agent Smith Gets Hardware: Autonomous IoT Hacking From Debug Port to Cloud API](https://www.wearedevelopers.com/videos/100258-agent-smith-gets-hardware-autonomous-iot-hacking-from-debug-port-to-cloud-api) ## Related Articles - [The 8 Best Code Testing Tools](https://www.wearedevelopers.com/magazine/402-the-8-best-code-testing-tools) - [Fully Remote Software Engineer Jobs](https://www.wearedevelopers.com/magazine/447-fully-remote-software-engineer-jobs) - [How We Built a Worry-Free System That Runs for 10+ Years – And What We’d Do Again](https://www.wearedevelopers.com/magazine/751-how-we-built-a-worry-free-system-that-runs-for-10-years-and-what-we-d-do-again) - [Dev Digest 121 - AI goes offline](https://www.wearedevelopers.com/magazine/456-dev-digest-121-ai-goes-offline) - [Where To Find Software Engineering Jobs](https://www.wearedevelopers.com/magazine/396-where-to-find-software-engineering-jobs) - [Is Software Engineering Over-Saturated?](https://www.wearedevelopers.com/magazine/418-is-software-engineering-over-saturated)