Chicago, IL · Founder, Efficiency Engine Data + AI Solutions

Pete Tamisin

Director-level Solution Architect with 20+ years building enterprise data platforms and production AI systems — and an aspiring fantasy novelist writing about faith, free will, and the small words that hold when everything else gives way.

Ground truth over generation. Behavioral context over conversational context. Deterministic actions over probabilistic guesses.

Portrait of Pete Tamisin
Open to Consultant & Forward-Deployed Engineer roles
20+ Years in data & AI
85% Faster customer integration
$8M+ ARR portfolio managed
Fortune 500 Enterprises served

01 — The day job

Production AI that holds up outside the demo

Through my consultancy, Efficiency Engine Data + AI Solutions, I design enterprise data platforms and production AI systems from architecture through customer success — translating complex technical decisions into measurable business outcomes for Fortune 500 organizations. My approach is opinionated: I build systems grounded in retrieval and truth, not systems that guess well.

Enterprise AI Architecture

Production RAG, hybrid retrieval, evaluation-driven design, LangChain / LangGraph / LangSmith.

Data Platforms

Databricks, Apache Spark, Snowflake, Delta Lake, Kafka.

Field & Revenue Enablement

POV frameworks, technical sales leadership, customer adoption at scale.

Executive Partnership

Acquisition diligence, roadmap influence, cross-functional delivery.

Mar 2025 — Present Capital One Software via acquisition of Sync Computing

Director, Solution Architecture — AI & Data Platforms

  • Lead technical sales enablement and post-sales adoption strategy for Slingshot for Databricks.
  • Defined technical architecture standards and global Proof-of-Value frameworks that accelerate time-to-value.
  • Architected a production RAG system for Databricks usage analysis with grounded, citation-backed responses at scale.
  • Trained 45+ presenters for Databricks Summit and World Tour; scaled Job Cluster Optimizer from startup product to enterprise platform.
Nov 2022 — Mar 2025 Sync Computing Acquired by Capital One

Head of Customer Solutions & Success

  • Solution Architect on 100% of closed contracts; owned the full customer lifecycle.
  • Supported Capital One executives through acquisition diligence with technical validation and ROI.
  • Cut customer integration time by 85% with new integration patterns; delivered 73 live demos at Databricks Summit.
  • Built and led a high-performing team of four focused on adoption and measurable outcomes.
2018 — 2022 Databricks Customer Success

Tech Lead, Customer Success

  • Managed 4 Fortune 500 accounts totaling $8M+ ARR, supporting 50+ customers.
  • Drove 200% business growth (2018–2019); co-authored the definitive Azure/Databricks CI/CD guide with Microsoft PMs.
  • Promoted three times in four years. Impact Player of the Year (2018), Cultural Value Award (2019).
2004 — 2018 Earlier roles Consulting & engineering

Progressive Data & Solution Roles

  • Red Pill Analytics, Rittman Mead, Siemens Energy, Obvient Strategies / ABB Ventyx.
  • Consultant, Data Engineering Lead, Senior Solution Engineer, Solution Architect.

02 — Selected projects

RAG systems built on a strong opinion

A theme runs through all three: don't let the model guess what the user meant. SQL defines facts, reports frame the questions, and the LLM provides narrative — never invention.

Python · LangChain · Neo4j GitHub ↗

System Reliability Copilot

A deterministic, report-driven assistant for SREs and platform engineers. A tri-corpus design over Neo4j — telemetry graph, vendor docs, and internal runbooks — supports multi-hop reasoning across infrastructure, with deterministic "action chips" replacing ambiguous prompting.

  • Graph + vector search
  • Streamlit
  • LangSmith
Python · FAISS · GraphRAG GitHub ↗

Databricks Usage Copilot

An enterprise copilot for analyzing Databricks workloads — cost, reliability, performance, and operational risk. Five production reports paired with a dual-corpus RAG combining usage telemetry and official documentation for auditable, citation-backed answers.

  • Hybrid retrieval
  • Anomaly detection
  • CSV export
Python · LCEL · Multi-LLM GitHub ↗

Hybrid RAG with LangChain

A production-style chatbot that routes dynamically between FAISS vector search and SQLite-backed GraphRAG depending on whether a question is document-semantic or relationally structured — a distinction most RAG implementations ignore. Streams responses with source citations across OpenAI, Gemini, Claude, and Grok.

  • Query routing
  • Pydantic classification
  • End-to-end tracing

More on github.com/ChicagoDro

03 — The other craft

Aspiring fantasy novelist

The Sender Trilogy · Book One The Bearers
of the Light
Pete Tamisin

An epic fantasy for readers who came up on Tolkien — and stayed for the harder questions underneath.

Elias Estarfal was raised in an abbey and made a knight, and he has never doubted that serving the Light is worth a life. The question that troubles him is older and harder: if the Light knows the end of everything before it begins, is a man's yes his own, or was it always going to be given?

He is sent south on a simple errand — carry a sealed letter to a priest in a fading lake town, and bring the priest safely home. But Dahl is not what it was. The fish wash up dead. The fog will not lift. And the people have begun to turn on one another in a way no one can explain, as though something has reached into them, found the oldest wound, and pressed.

What waits in Dahl will not be answered by Elias's sword, though the sword will be needed. He falls in with strangers who should never have met — a ranger far from her forest, a knight from a dying mountain people, and a woman who has every reason to lie to him, and does. Together they learn that what is happening in one small town is happening everywhere, and that the only thing that might stop it is a thing none of them is strong enough to carry alone.

A story about faith that costs something, evil that argues back, and the small, unreasonable word that holds when everything else gives way: let it be as you say.

04 — Off the clock

The rest of it

Karaoke

Give me a mic and the right song and the night's already a good one.

Martial Arts

Discipline, patience, and the long game — the same things that build good systems.

Chicago Bulls

NBA fan through and through. Bulls first, always — through every era.

05 — Say hello

Let's build something that holds up.

Whether it's a production AI system, a field-enablement program, or a conversation about epic fantasy — I'd be glad to hear from you.