Vistra Corp.→
GenBI Intern at Vistra Corp. in Irving, TX
InternshipOn-siteFull-timeIrving, TX
Skills
snowflakesemantic layer developmentsqldata modelingprompt engineeringlarge language models (llm) integrationdata visualizationechartsai agent developmentbusiness intelligence (bi)retail energy domain knowledgeautomated report generation
Job Description
Summary: Vistra Corp. is a global leader in the energy sector, and they are seeking a GenBI Intern to contribute to the development of a Generative BI platform. The intern will work on data modeling, AI agent tuning, and automation of business insights within the retail energy portfolio.
Responsibilities:
- Design and enrich Snowflake-based semantic schemas that power natural language querying across retail KPIs such as customer counts, sales forecasts, and margin performance
- Document business logic, metric definitions, and data lineage to ensure AI agents can accurately interpret and query the data
- Craft and refine system prompts and contextual instructions that guide LLMs to generate accurate SQL and business narratives
- Evaluate query accuracy across retail KPIs, identify failure patterns, and build a test harness of 50+ validated question-answer pairs
- Build reusable ECharts-based visualization templates that auto-render from queried datasets, including bar charts, line charts, and heatmaps
- Explore diagram generation for process documentation and design executive-ready chart formatting standards
- Build a native Snowflake Cortex AI agent that mirrors the AskBI capabilities currently deployed in Odin, leveraging the same underlying data sources and semantic models
- Benchmark accuracy, latency, and user experience between the Odin-based and Snowflake-native agents to inform platform strategy, and document a reusable deployment playbook
- Identify and catalog existing manual email-based reports across the Retail organization, mapping their content, recipients, frequency, and data sources
- Design and implement a repeatable process to replicate these reports as Odin-generated outputs with automated email distribution, and document an end-to-end migration playbook for future onboarding
- Participate in user feedback sessions to iterate on the conversational UX
- Create onboarding materials, use-case guides, and demo scripts to drive platform adoption across the Retail organization
Required Qualifications:
- Contribute to the continued development and expansion of the AskBI platform
- Work on real-world business problems across Vistra's retail energy portfolio
- Design and enrich Snowflake-based semantic schemas that power natural language querying across retail KPIs
- Document business logic, metric definitions, and data lineage
- Craft and refine system prompts and contextual instructions for LLMs
- Evaluate query accuracy across retail KPIs and identify failure patterns
- Build reusable ECharts-based visualization templates
- Explore diagram generation for process documentation
- Build a native Snowflake Cortex AI agent that mirrors AskBI capabilities
- Benchmark accuracy, latency, and user experience between agents
- Identify and catalog existing manual email-based reports
- Design and implement a repeatable process to replicate reports as Odin-generated outputs
- Participate in user feedback sessions to iterate on the conversational UX
- Create onboarding materials, use-case guides, and demo scripts
Required Skills: Snowflake, Semantic Layer Development, SQL, Data Modeling, Prompt Engineering, Large Language Models (LLM) Integration, Data Visualization, ECharts, AI Agent Development, Business Intelligence (BI), Retail Energy Domain Knowledge, Automated Report Generation