Software that sticks.
Leech Software is an independent engineering outfit based in New York. We build, secure, and automate — for ourselves first, and for clients who want the same machinery working for them. Small by design: no account managers, no handoffs. The person you talk to is the person who ships.
Two decades across software development and cybersecurity, from internet-scale infrastructure to one-machine automations that quietly run a business.
What we do
Custom Software
Web apps, internal tools, data pipelines, and APIs. Built lean, documented, and handed over in a state you can actually maintain.
Security & Hardening
Audits, infrastructure lockdown, DNS/email authentication (SPF, DKIM, DMARC), and incident cleanup. We think like the attacker because we've studied them for years.
Automation & AI Agents
Self-hosted AI gateways, monitoring bots, scrapers, and scheduled workflows that replace the boring 80% of operational work.
Web & Infrastructure
Static and dynamic sites on AWS and Cloudflare, performance tuning, analytics, and deployment pipelines that make publishing a one-line command.
Data & Modeling
Statistical models, prediction systems, and live data feeds — sports, markets, whatever the signal is, we build the pipeline that catches it.
Rescue Missions
Inherited a mess? Stalled project, dead vendor, mystery server? We specialize in walking into unfamiliar systems and getting them back under control.
Get in touch
Tell us what you're trying to build, fix, or automate. We reply to every serious message — usually within a day.