Senior Mobile Network Test Engineer (Remote)

ThunderSoft, a well-known OS and intelligent device products and technology provider, has been continuously accumulating and innovating in the operating system field,with its business expanding gradually from smart phone to smart vehicle, AIoT and smart industries. ThunderSoft was successfully listed in 2015, which leads it to be China's very first listed technical company specialized in the intelligent operating system. Till now, ThunderSoft has covered more than 40 cities around the world, with a total of over 13,000 employees.

About The RoleWe are seeking an experienced Senior Mobile Network Test Engineer with 4-5 years’ relevant expertise to support a complex mobile technology project. The position involves extensive field and protocol testing with advanced 4G/5G/LTE/WCDMA/CDMA and IMS technologies. Candidates should be prepared for demanding assignments and a challenging technical environment. Location: Riga, Latvia (Remote)Start Date: 1 August 2025Project: Leading Global Technology Company (Fortune 5)Key Responsibilities: Conduct Field Testing and Protocol Testing for various OEMs and customers, ensuring thorough verification of 4G and 5G technologies. Perform feature release testing for new mobile technology features.

Analyze and debug complex network issues using industry-standard log analysis and debugging tools such as Wireshark, QXDM, QCAT, ELT, STT, Mobile Analyzer, and Mediatek Catcher tool. Verify and reproduce customer and field issues, validating bug fixes and managing defect closure. Collaborate daily with cross-functional teams to discuss verification status, report issues, and ensure timely resolution. Follow up on defects raised by self and team members, ensuring complete closure and quality delivery. Maintain strong understanding and adherence to 3GPP specifications. Work extensively on chipsets including Qualcomm, Mediatek, and Intel.

Perform initial UE log analysis and use log tracing tools like QXDM, QSPT, and STT to troubleshoot device behavior. Qualifications: 4-5 years of experience as a Mobile Field Test (FT) Engineer. In-depth understanding of 4G/5G/LTE/WCDMA/CDMA and IMS technologies. Proven expertise in field testing and protocol testing across various OEMs and customer environments. Experience working on live networks. Hands-on experience with multiple chipset platforms (Qualcomm, Mediatek, Intel). Proficiency with debugging and log analysis tools (Wireshark, QXDM, QCAT, etc. ). Strong capability in initial UE log analysis and tracing complex issues. Excellent knowledge of 3GPP specifications.

Experience managing defect lifecycle from identification to closure. Ability to work effectively in a remote setting and collaborate with global teams. What We Offer: Work on impactful, high-tech projects that shape the mobile industry. Enjoy flexible remote work options from Riga. Join a team committed to your professional growth and learning. Ready to make an impact and advance your mobile testing career? Apply now - we’re excited to hear from you!