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PeytonNowlin/README.md

Peyton Nowlin

Full-stack engineer working on search infrastructure, data pipelines, and AI systems in the automotive aftermarket.

I build software that runs at scale: search infrastructure behind hundreds of e-commerce sites, databases holding hundreds of millions of rows, and AI systems built for production rather than demos. Most of my work sits at the intersection of hard data problems and infrastructure that cannot go down.

What I work on

Search at scale. Design and operation of self-hosted search infrastructure serving hundreds of production e-commerce sites: index architecture, caching strategy, and load testing to sub-15ms hot p95 latency.

Automotive data standards. Deep expertise in ACES and PIES (VCDB, PCdb, PAdb, Qdb), fitment architecture, and the data modeling problems unique to the aftermarket. Author of an open-source ACES 4.2 validator built in Rust with DuckDB and SARIF output.

AI infrastructure. Building internal AI platforms and MCP servers that connect LLM tooling to production data systems, with the auth, policy, and cost controls that requires.

Databases under load. MariaDB at scale: query optimization, schema design, ingestion pipeline tuning, and diagnosing the failure modes that only show up in production.

Selected projects

Project Description
ACES 4.2 Validator Open-source validation tooling for ACES XML. Rust, DuckDB, SARIF output for CI integration.
Nebula A statically typed language for AI agent authoring that compiles to Python. Compiler written in Rust.

Stack

Languages: TypeScript, Python, PHP, Rust, SQL Data: MariaDB/MySQL, Redis, DuckDB, Meilisearch, Algolia Backend: Node.js, FastAPI, FastMCP, CodeIgniter Infrastructure: GCP, Plesk, Docker, Linux server administration

Contact

Open to conversations about search infrastructure, aftermarket data standards, and AI tooling.

Pinned Loading

  1. Ontology Ontology Public

    Database Ontology Mapper is a full-stack application that automatically extracts and visualizes database schemas from multiple MySQL/MariaDB databases. It provides an intuitive, Palantir-inspired i…

    TypeScript 3 2

  2. SpecDrive SpecDrive Public

    AI-Powered Automotive Parts Data Enrichment Tool Instantly retrieve complete product specifications, compatibility data, marketing content, and cross-references for any aftermarket automotive part.…

    TypeScript 1

  3. Fitment Fitment Public

    Modern ACES-Validator

    Rust

  4. Nebula Nebula Public

    A typed language for AI agents — author in Nebula, ship as Python. Rust compiler + JSON toolchain.

    Rust 1