Comet Labs·Denver

Handcrafted Software for Startups Who Care

Senior engineering help for teams building in sports, health, insurance, and fintech. From zero to shipped.

Clients
BayinformaticsFractional CodersMarketingBlueprintBrian Mathew Music
Services

How I help

0 → 1 Product Builds

From idea to shipped product

You have a repo and a vision. I'll build the MVP that gets it into customers' hands—architecture, UI, deployment, the whole thing.

Fractional Staff Engineer

Senior help when you need it

Embedded engineering support for teams that need extra horsepower. Code reviews, architecture decisions, shipping features alongside your team.

iOS Apps

Native apps that last

Swift apps built with modern architecture (TCA, SwiftUI) that are maintainable long after I'm gone. No spaghetti, no lock-in.

Launch Hardening

Production-ready

You built something, now it needs to actually work at scale. Performance tuning, reliability improvements, and the boring-but-critical work before launch.

Work

Recent projects

Chestnut

Head of Engineering

MGA Insurance Platform

Built the entire technical foundation for a managing general agency from scratch—policy administration, quoting engine, and agent portal. Went from empty repo to live product in 7 months. Now processing over $200M in policies.

RailsStimulus0 → 1

MarketingBlueprint.ai

Fractional Dev

AI SaaS Product

Took an early prototype and built it into production-ready infrastructure—proper CI/CD, monitoring, security, onboarding flows. Created video docs and training so the solo founder could maintain and extend it himself.

ReactSupabaseFounder Handoff
About

Matthew Stingel

Denver, CO

mwksl.me

Seventeen years of building software, moving between the code and the people around it. Currently heading engineering at an insurance startup while taking on select consulting work.

Previously led mobile at TrainingPeaks, where our iOS work was featured at WWDC 2023.

The work I find most interesting involves domain experts—coaches, underwriters, founders who understand their problem deeply. Translating that knowledge into software that actually serves it.

Elsewhere: vinyl, film photography, hockey, electronic music.

Taking on limited work in Q1 2026

Let's talk

If you're working on something in sports, health, insurance, or fintech and need senior engineering help—I'd like to hear about it.

consulting@comet.fm