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DEREK FOX

GENAI ENGINEER

derek-fox@mail.com · Denver, CO · foxintheloop.com · github.com/foxintheloop · linkedin.com/in/fox-derek

SUMMARY

GenAI Engineer with 4+ years of experience shipping production AI systems across enterprise consulting, finance, and telecom. Specializes in designing multi-agent architectures, building RAG pipelines, and developing LLM evaluation tooling at scale. Combines a Master's in Data Science (AI specialization) with hands-on delivery for Fortune 500 clients in regulated, high-accuracy environments.

EXPERIENCE

Generative AI Engineer Senior Consultant

Jun 2025 – Present

Deloitte · Denver, CO

  • Built full-stack LLM-as-a-Judge evaluation framework that accelerated testing cycles by 90% for CFO-facing finance agentic application. Scaled from single team to company-wide adoption across 3 teams.
  • Architecting agents within 30-agent fleet on Google Gemini Agentspace focused on revenue leakage detection, cash collections optimization, and journal entry intelligence.

ML Engineer | Data Scientist Senior Consultant

Jan 2022 – Jun 2025

RevGen Partners · Denver, CO

  • Built Customer Support Generative AI data product using AWS Bedrock and LangChain with RAG — utilized customer conversations, product catalogs, sentiment analysis, and conversation history.
  • Engineered machine learning driven lead routing engine with Microsoft Fabric and Azure Synapse. Incorporated Ranking, Ensemble, Classification, and Forecasting models.
  • Built revenue assurance classification model that identified 5M at-risk accounts most likely to carry an unpaid balance.
  • Engineered pricing optimization solution with genetic algorithm and demand forecasting models.
  • Uncovered $150M in annual telecom revenue share to divest through data pipeline development integrating 12 data sources.

Data Scientist | Analyst

Jan 2021 – Jan 2022

Freelance / Hack for LA / EnCiv · Remote

  • Built time-series forecasting models, data pipelines (AWS Redshift), and statistical analysis tools across civic tech and nonprofit engagements.

Business Systems Analyst

Dec 2019 – Oct 2020

Charles Schwab · Lone Tree, CO

  • Designed reporting and automation systems using Teradata, Oracle, Apache Hive, SQL, and Python to optimize survey business processes and program evaluation.

PROJECTS

ReasonForge

Neurosymbolic mathematics toolkit for LLMs. 111 tools across 7 MCP servers for provably correct results.

https://github.com/foxintheloop/ReasonForge

UpTier

MCP-powered task manager with Claude AI integration, intelligent prioritization, and goal tracking.

https://github.com/foxintheloop/UpTier

TransitGuard

Predictive safety intelligence for Chicago CTA. XGBoost + DBSCAN on 50K+ incidents. RAG-powered chatbot.

https://github.com/foxintheloop/TransitGuard

EDUCATION

Northwestern University

2023 – 2025

Master of Science, Data Science — AI Specialization

UC Berkeley

Bachelor of Arts, Pre-Law

SKILLS

PythonSQLTypeScriptRPySparkTensorFlowNode.jsDockerGenerative AILLMsRAGAgentic SystemsLLM EvaluationPrompt EngineeringMCP ServersLangChainHugging FaceVector DatabasesEmbeddingsMachine LearningDeep LearningNLPPredictive AnalyticsAWS BedrockGoogle CloudVertex AIGemini AgentspaceAzure SynapseDatabricksREST APIs

CERTIFICATIONS

  • Microsoft Certified Data Science Associate
  • Databricks LLM
  • IBM Data Science