Lead engineer · New York · Taking on 2 new projects this month

I build the systems
businesses run on.

Custom AI and software engineering for businesses carrying one specific technical gap. Usually the kind that quietly costs somebody a day every week.

$1,000

To start, scoped and fixed

1–2 weeks

To first delivery

Your risk

If it doesn’t land, you keep the work

01 · What I do all day

Real-time payments. Data infrastructure. Fulfillment systems.

I’m the lead engineer at a growth-stage e-commerce platform in NYC, where I’ve spent the past several years building the real-time payments, data, and fulfillment infrastructure the business runs on. Outside of that, I take on a small number of projects each month for businesses who could use the same kind of help, scoped to fit.

02 · What I build

Most of the work I take on falls into one of three shapes.

I

Systems that don’t talk to each other

Orders in one place, inventory in another, fulfillment in a third, and someone reconciling all of it every morning. I connect them up and write the reconciliation logic down, so it lives in the system rather than in somebody’s head.

  • integrations
  • event pipelines
  • reconciliation

II

AI placed where the manual review is

Document intake, claims triage, classification, extraction. Usually that means a model sitting in the step someone does by hand today, with the awkward cases handled, rather than a chatbot on the homepage.

  • document extraction
  • triage & routing
  • evals

III

The spreadsheet that runs a department

Most businesses have one: the file that only one person fully understands. Rebuilt as real software, with permissions and history, so the whole thing no longer rests on one person’s memory.

  • internal tools
  • dashboards
  • automation

03 · Where I already know the terrain

The kind of terrain I know from the inside — not the only terrain I work in.

Perishable distribution

Orders arrive on four channels and leave on one truck

I spent time inside perishable food distribution at True World Group before moving into engineering leadership. So I know what reconciling orders before the truck loads actually looks like, and what aging inventory costs when nothing flags it.

Health share ministries

Intake and needs-sharing that still run on manual review

From my time in the health share space at Healthshare Works: member intake, needs-sharing requests and claims processing carry a real operational load, and a lot of it is solvable with engineering rather than more hiring.

The pattern shows up anywhere a business runs on disconnected systems and manual review — not just these two. If that sounds like where you are, it’s worth a conversation regardless of industry.

05 · Where we start

$1,000

Projects start at $1,000 for that first tightly scoped piece of work, usually delivered within one to two weeks. Enough for both of us to see how we work together before talking about anything larger.

If it doesn’t work out, you still own everything built, and neither of us spent much finding out. It’s a real project, not a trial run — the easiest way to find out whether the bigger system is worth building together.

If any of this sounds familiar, I’d like to hear about it.

Email

hello@williamxsanchez.com

Elsewhere

LinkedIn

Based

New York, NY