Phong Trang

Case studies

AI products I built at Volvo Cars and Eliq, meant to help a person decide rather than to decide for them.

A different domain, yet the same question I now ask about teachers, and the reason I recognised that question when I met it in education.

AI explaining people's own data to them

GenAI Energy Coach

Eliq · 2026

A generative AI coach that explains a household's energy bill as a conversation, grounded in the platform's own consumption data. Pitched, defined, built and priced end to end.

  • Live at three utility clients
  • Five failure classes found and closed before client testing
  • A live audit of which pricing inputs were sourced, built into the tool

Azure OpenAI · MCP · .NET · Lovable · Claude

AI assisting analyst workflows

Data Analyst Agent

Volvo Cars · 2024–2025

A LangGraph agent that turned recurring ad-hoc data questions into self-serve SQL, so analysts kept the judgment calls and lost the queue.

  • 40% reduction in ad-hoc data requests within 30 days
  • ~50 analyst hours returned per month

LangGraph · Python · SQL · Databricks

AI assisting customer care agents

GenAI Assistant for Customer Care

Volvo Cars · 2023–2024

A RAG assistant giving care agents across 12+ markets one trustworthy answer instead of six stale intranet pages. Built to support the agent's decision, never to replace the agent.

  • 35% automated resolution rate within 90 days
  • 94% agent satisfaction at alpha
  • 10pp improvement in first-contact resolution

LangChain · Azure OpenAI · RAG

AI assisting buyer decisions

AI Semantic Search for New Car Sales

Volvo Cars · 2023–2025

Intent recognition for natural-language car search, bridging how people describe a car and how the catalogue lists one, across 100+ markets.

  • 85% search accuracy (NDCG)
  • +11% purchase conversion for search users
  • +19% traffic to car listing pages

Azure OpenAI · Cohere · Elasticsearch · vector search · GraphQL

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