Builder-operator

Technical products built,
run, and transferred when ready.

Infrastructure, content, and commerce. Built and run solo. Most of what I've shipped is listed in the marketplace; what's currently in build is in the portfolio.

12 domains 11 marketplace listings All built solo

What's where

The site splits into three surfaces. Pick what you came for.

Portfolio

What I'm currently building.

Marketplace

Live SaaS products, content sites, sister-site bundles, asset-only builds, and held domains. Each listing has its own scope and terms.

Services

Build on demand. Backend systems, webhook infrastructure, Stripe integrations, content pipelines. Fixed-scope, hourly, or retainer.

Build on demand

Everything listed here was built solo. Same standards, available on contract.

[ backend ]

Backend & infrastructure

Event systems, webhook routing, API integrations, deployment pipelines. Go, Node.js, Docker, nginx on self-hosted VPS.

[ content ]

Content automation

WordPress and Ghost setup, REST API publishing pipelines, programmatic content at scale. Structured for SEO from the start.

[ tools ]

SaaS tools & calculators

Single-page utilities, Stripe billing integration, lightweight SaaS products. No-fluff UX, fast to ship.

[ ops ]

Deployment & hosting

Self-hosted VPS setup, nginx, SSL, Docker Compose. Clean, maintainable, no platform lock-in.

Scope, rates, and how it works — full details on the services page.

View services & rates →

About

Long-running interest in how systems fit together — infrastructure, data flow, the way small components add up to something operational. That curiosity is what got me into software, and what keeps the work spread across categories rather than narrowing into one stack or vertical.

Webhook infrastructure, content pipelines, financial calculators, commerce sites, 3D knowledge interfaces — different domains, same instinct: build the thing that should exist, run it in production, see what holds.

Everything listed here was built and deployed solo.

12 Domains
11 In marketplace
1 Current focus

Get in touch

Acquisition, project work, or partnership. Keep it short — what you want and what context you're bringing.

office@constantin-works.com

Opens your email client. No server-side processing.