Software Test Engineer

TSW CORE LLC; Palo Alto (CA); On-site; USD 120,000 - 160,000; Full time

Job summary

TSW CORE LLC seeks a qualified engineer to lead end-to-end wireless device validation in Palo Alto. You will design test plans, automate with Python and shell, integrate into CI pipelines, and work with carriers and labs for certification.

You will analyze protocol logs with QXDM, QCAT, ELT, and Wireshark, troubleshoot connectivity issues, and drive regression testing to ensure product quality. On-site collaboration across software, RF, and lab teams is essential.

Qualifications

• Experience in testing, validation, debugging, automation, or technical documentation.
• Experience with wireless/mobile device testing in lab environments.
• Bachelor’s degree with related field and 18 months of experience.

Responsibilities

• Collaborate with carriers and labs to plan and execute certification tests.
• Analyze protocol logs with QXDM/QCAT/ELT/Wireshark and troubleshoot issues.
• Design structured test plans for VoLTE/roaming and automate in CI pipelines.
• Track defects, perform root-cause analysis, and execute regression tests.
• Maintain automated lab testing infrastructure and enhance automation frameworks.
• Gather field data to prioritize fixes and improve product quality.
• Coordinate cross-functional validation with software, RF, and systems teams.
• Coordinate third-party lab testing and prepare technical docs for certification.
• Refine testing protocols based on failure patterns and post-launch reviews.

Skills

Test automation

Python scripting

CI pipelines

Log analysis

Troubleshooting

Education

Bachelor’s degree with 18 months experience

Tools

QXDM

QCAT

ELT

Wireshark

Python

Shell scripting

Job description

Job Duties:

• Collaborate with telecom carriers and third-party laboratories (e.g., T-Mobile, Verizon, AT&T, ATMCL Lab, Tech Mahindra Lab) to plan and execute certification testing, ensuring compliance with 3GPP and operator-specific standards. Responsibilities include managing test plans, provisioning devices, and compiling test reports for certification.
• Troubleshoot complex device issues by analyzing protocol logs with Qualcomm QXDM, QCAT, ELT, and Wireshark. Work with development teams to investigate connectivity failures, call quality degradation, data throughput drops, and roaming anomalies.
• Design and implement structured test plans covering both manual and automated scenarios for features such as VoLTE, VoNR, network transitions, and roaming. Develop test workflows using Python or shell scripts and integrate into CI pipelines for robust and scalable verification.
• Track and manage software defects using internal bug tracking systems. Conduct root cause analysis through log tracing, reproduce critical issues in lab conditions, and execute regression testing for verified fixes. Provide regular defect status updates to internal teams.
• Maintain and upgrade internal automated lab testing infrastructure to support wireless device validation. Use Python and related tools to build and improve automation frameworks, enhance script reliability, and reduce manual workload.
• Analyze field data and customer feedback gathered through logging platforms and support systems. Categorize issues by severity and frequency, work with development teams to prioritize fixes, and deliver actionable insights to improve future product quality.
• Work closely with cross-functional teams, including software development, RF engineering, and systems testing, to plan and execute end-to-end validation activities. Share test progress and documentation via internal collaboration platforms to ensure alignment across teams.
• Coordinate third-party lab testing with partners such as ATMCL Lab and Tech Mahindra Lab. Review failure logs, replicate issues in-house, and prepare detailed technical documentation to support certification approval and issue closure.
• Continuously refine testing protocols and automation coverage by reviewing failure patterns, updating legacy scripts, and incorporating industry QA best practices. Conduct post-launch reviews to identify improvement areas in coverage, tooling, and reporting.

Minimum Education/Experience Requirement:

Bachelor’s degree or foreign equivalent in Computer Science, Computer Engineering, Electrical Engineering or a closely related field plus 18 months of experience

Special requirements:

Experience must include testing, validation, debugging, automation, or technical documentation involving software, hardware, semiconductor, embedded systems, wireless systems, mobile devices, or other engineering systems.

Rate of Pay (Salary):

Competitive salary