Brimley Labs Work with me

Matthew Summers, Brimley Labs

Twenty-seven years building software, now with an agent in the loop.

Engineer and CTO from Fortune 500 companies to startups taken through exits. The recent years have been AI: custom models, agent pipelines with guardrails, and deployment at real scale. I work directly in your systems, quote fixed prices, and demo finished work every day.

Matthew Summers
27years building software and the teams that build it
$5.2Ma year cut from one Fortune 500 technology budget
300people in the largest technology organisation I have led
2exits as CTO, including an acquisition by Hearst

Selected work

Things that changed a business, not just a codebase.

Client names stay private. The results do not.

I

$5.2 million a year out of a Fortune 500 technology budget

Brought Agile delivery to a 200-person engineering organisation at a global education company, consolidated platforms, and won approval for a multimillion-dollar next-generation learning platform. Open Education Consortium award, 2015.

  • Leadership
  • Agile
  • Platform
II

An edtech pivot that won a CODiE

Took a consumer learning product to a B2B platform as CTO. Multi-tenant, assessment-driven, built on a lean stack. SIIA CODiE 2018, Reimagine Education Gold 2018, Harvard New Venture Competition finalist.

  • CTO
  • Education
  • SaaS
III

Custom AI models and agent pipelines at scale

For the client portfolio of a large digital agency: training pipelines, retrieval over client data, agents with explicit guardrails, evaluation suites, and cost and latency budgets. Deployed into logistics, finance, legal, scientific and security domains.

  • AI
  • Agents
  • Evaluation
IV

A routing engine for a travel startup

Custom RV-aware routing on a self-hosted engine, offline map tiles, and a curated dataset of 78,000 campgrounds and 150,000 fuel stops. Web and native mobile, built with agentic tools under human review.

  • Routing
  • Mobile
  • Data
V

Traffic integrity for a publisher network

Edge and origin detection of invalid traffic across an estate of sites, with real-time gating of advertising, vendor reputation feeds, and daily reporting to the people who sell the ads.

  • Security
  • Ad tech
  • Edge
VI

A newsletter pipeline with humans in the loop

Collects sources, extracts and writes, assembles the digest, and pushes to the email platform, with editorial review built into every stage. Runs daily for a media company.

  • Automation
  • LLM
  • Publishing
VII

A consumer astronomy app, end to end with Claude Code

Sky conditions and targets for smart-telescope owners: 35,000 location pages in seven languages, light-pollution data, a free course, and a companion app. Built and shipped by one person with an agent.

  • Claude Code
  • Product
  • i18n
VIII

A classifieds startup, first line of code to acquisition

CTO and lead engineer at Kaango in Denver, from the first commit to the acquisition by Hearst in 2007.

  • Startup
  • Exit

Experience

From PHP in 1999 to agents in production.

  1. Guild President

    The Developers Guild

    Founded an invitation-only collective of senior engineers who build with agentic tools for small businesses. I qualify every client personally, set the standards every member signs, and built the platform the Guild runs on.

  2. Fractional CTO

    Two companies, confidential

    Hands-on engineering and AI leadership for a travel-technology startup and a media company, building with Claude Code daily.

  3. Chief Technology Officer

    A large digital agency, confidential

    Ran engineering across a portfolio of client products. Introduced agentic development, built custom AI models and training pipelines, and deployed AI solutions at scale.

  4. Fractional CTO

    Language-learning and ecommerce companies

    Platform strategy and delivery for a language-learning product and a WooCommerce-based retailer.

  5. Chief Technology Officer

    Mindprint Learning

    Pivoted the company from consumer to B2B and built the platform that won the SIIA CODiE 2018 and Reimagine Education Gold 2018, and reached the Harvard New Venture Competition final.

  6. Vice President, Technology

    Kaplan, Inc.

    Three VP roles over six years: Online Technology, Software Engineering, Technology Innovation. Brought Agile to the organisation, cut $5.2 million a year in cost, and won approval for a next-generation learning platform.

  7. CTO and lead engineer

    Kaango, Denver

    Built the classifieds platform from the first line of code to the acquisition by Hearst in 2007. Founded Open West Labs in the same years.

  8. The early years

    Italy, Montana, Connecticut

    Consulting CTO in Italy, SMS and SS7 telecom systems in C, and PHP from 1999 across every framework that mattered.

Education

  • Mathematics and GeographyUniversity of Montana, 1998 to 1999
  • MarketingUniversity of Hartford, 1995 to 1997
  • Italian language studiesAlpha Beta, Italy, 2004 to 2006

Awards and certification

  • SIIA CODiE Award, Best Learning Capacity-Building Solution2018
  • Reimagine Education, Learning Assessment Gold2018
  • Harvard New Venture Competition finalist2018
  • Open Education Consortium Award2015
  • Certified ScrumMasterScrum Alliance, 2009

Open source

Tools born from real problems, shared.

Brimley Labs is named after Brimley, a Morkie and the goodest boy. Everything here is MIT licensed.

Skills

What I reach for, and how often.

Working Strong Expert

About

The lesson underneath all of it is simple.

Matthew Summers

I have been writing code for more than a quarter of a century and I still get excited about a hard problem. It started with BASIC in fifth grade, then Unix at a friend's house whose mother worked at Bell Labs, then MUDs, then PHP professionally in 1999. There was a detour into C, writing telecom protocol drivers, and a couple of years in Italy, before I came back to building products and the teams that build them.

I have led technology organisations of two to three hundred people and I have been the only engineer in the room. Both taught me the same thing. Small teams of strong people outbuild large ones. The person doing the work should be the person you talk to. Price and scope belong in writing before anyone starts.

The last few years have been AI. Not the demos, the deployments: custom models, retrieval over messy real data, agents with guardrails and evaluation, and the cost control that keeps them running. Today I build with Claude Code every day, and I started The Developers Guild so that other senior engineers who work this way can serve the small businesses that were priced out of senior engineering altogether.

I live in Onalaska, Wisconsin, with my family and Brimley, the Morkie this site is named after.

Small teams of strong people outbuild large ones. The person doing the work should be the person you talk to.How I work

Domains

Transportation, logistics and supply chain, education, finance, legal, marketing technology, scientific applications, security, media, ecommerce.

Languages

English, native. Italian, professional.

Contact

Two doors.

Client work goes through the Guild, where every piece is quoted as a fixed price and demoed daily. Everything else, find me on LinkedIn or GitHub.