US_East | Software Developer - Testing Tools/Automation/Performance _L2

QA Engineer

We are seeking a QA Engineer with 6–8 years of experience in NTN, NR, LTE, and IMS protocol stack development and testing. The ideal candidate will have strong experience in automation framework development using Python and Shell scripting, along with hands-on expertise in telecom testing environments. The candidate should be well versed in testing strategies for NTN (Non-Terrestrial Networks), including Skylo and Starlink testing, Telephony, and eSIM validation.

• Perform Functional, Regression, Sanity, and Feature testing for NTN, Telephony, and eSIM
• Execute CBRS (5G Private Network Testing) with operators such as Charter and Xfinity
• Validate Network Slicing, Unified Call Logs, NTN, and T911 to eSOS functionalities
• Analyze logs using Android debugging tools, QXDM, QPST, QCAT, Shannon Tools, and related utilities
• Use Keysight E7515 UXM 5G, Anritsu MT8475B, CMW500, and CMW100 call boxes to validate NR, LTE, IMS, and L+GWL call flows and handovers
• Perform issue triaging and debugging reported by field test teams
• Conduct protocol and modem log analysis using Shannon DM, QXDM, and QCAT tools

• 6–8 years of experience in telecom protocol stack development and testing
• Strong understanding of NTN, NR, LTE, IMS, Telephony, and eSIM technologies
• Experience with automation scripting using Python and Shell scripting
• Hands-on experience with telecom testing and debugging tools
• Strong analytical and troubleshooting skills
• Good communication skills

• Experience with immediate or fast-paced project onboarding
• Exposure to private 5G network testing and operator certification environments

All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, or status as a protected veteran.