• Investigates and resolves consumer and commercial billing issues • Negotiates and authorizes billing settlements • Documents and reports on billing issues

• Audit new suppliers and make recommendations of whether we do business with them, based on the level of risk • Document audit results via a professional report that can be shared with financing partners • Provide guidance and support to suppliers to implement robust quality processes into their factory • Supporting supplier quality for electrical balance of systems (eBOS) for solar photovoltaic products • Complete Quality requirements input into PPAPs, Critical Dimensions or aspects on prints, Inspection check sheet preparation, Measuring system plans, FAI process instructions and completion, MSA, Pre-production plan, production ramp up plan and sample inspections, Inline critical dimension/aspect checks, self-certification of suppliers • Be responsible for the specification and validation of inspection tools and gages for suppliers • Take ownership of and develop technical process improvement strategies at supplier facilities backed up by SPC data (Cp, CpK, P Chart, Xbar, etc.) to ensure compliance • Monitor key performance indicators for supplier quality, such as early life failures, DPPMs, and RMA rate • Own supplier performance results by monitoring, driving, and optimizing Inspection frequency based on DPPM outcome to ensure supplier quality compliance • Lead solving critical supplier quality issues • Manage timely resolution of supplier failure, corrective actions and preventive actions and drive their resolution through regularly set meetings with suppliers • Guide and mentor suppliers on how to improve their quality over time • Implement the supplier scorecard to measure ongoing supplier performance • Own and drive the relationship between NX and suppliers relating to quality performance, trends, and all corrective actions

• Quality Ownership: Drive testing efforts across web applications, APIs, and integrations, ensuring releases meet high standards. • Test Automation: Design, implement, and maintain automated test scripts with Playwright (and other tools where appropriate). • API Testing: Develop and execute tests for RESTful and GraphQL APIs, including validation of data integrity and error handling. • UI Testing: Validate front-end workflows and user experiences with attention to detail and usability. • Communication & Collaboration: Clearly document test cases, results, and defects in a way that’s easy to understand. • Present findings and risks with confidence in meetings, adapting communication style depending on the audience. • Mentorship & Support: Share knowledge with junior QAs, contribute to process improvements, and foster cross-functional collaboration.

• Define and implement the end-to-end testing strategy for Joist AI, focusing on the Proposal Processing Pipeline and Knowledge Graph building. • Develop novel ways to test and monitor LLM-generated narratives and chat responses for accuracy, hallucination reduction, and compliance. • Own the quality of our extraction services (Adobe API), object/image detection, and captioning services. • Lead the development of automated test suites using Playwright (browser) and API automation (FastAPI) integrated into our CI/CD pipelines. • Use Linear to track defects through the lifecycle and collaborate with leads (Bala, Sharat, Chandan) to prioritize fixes based on customer impact. • Partner with Data Science teams to validate image processing (face/label detection) and with the GTM team to understand real-world proposal workflows.