Business Development · Supply Chain · Technical Builder

Lucas G.
De Castro

I build revenue lines from zero — and turn around the ones that are failing.

I’ve never had a title that captured what I actually do, so I just built businesses instead. Thirteen years across the full supply chain, turning failing operations profitable and launching new revenue from scratch — and when the tooling didn’t exist, I wrote it myself in SQL, Python, and Node.js.

Lucas G. De Castro
$6M
Annual revenue built
75%
Margins, flagship line
$500K
In 90 days, $3K budget
/01

Signature Wins

$500K

Hurricane Maria relief line

While competitors charged $1,000–$2,000 to move a single generator, I charged $300 — turning a $3,000 marketing budget into half a million in revenue over three months. Executed solo, after leadership said it couldn’t be done.

$6M

Parcel logistics, zero to scale

Built the company’s small parcel logistics business from concept to $6M in recurring annual revenue, sustained since 2019.

$500K

Cross-border RMA operations

Designed and launched return operations enabling U.S. Amazon sellers to bring product back from Mexico and Canada — a brand-new revenue category now generating $500K and growing.

~$500K

Two e-commerce brands, year one

Built Nutrewish and MercadoEUA from scratch — both targeting Latin American consumers — generating a combined ~$500K in their first year.

75%

BraBox turnaround

Took over a failing international moving division after its management was let go. Rebuilt procedures, accounting, and the service model end to end — breakeven within one year, then profitable, with international moving as the flagship at 75% margins.

300+

AI-driven pricing at scale

Used AI to rebuild pricing and automate cost and sell-rate functions across 100+ contracts and 300 independent offices worldwide — refreshed monthly, and weekly during crises.

Hand me nothing and I’ll build you a revenue line.

I operate across the full supply chain — procurement, fulfillment, freight, distribution, and reverse logistics — pairing end-to-end operational command with AI-driven strategy and a habit of moving fast without waiting for permission.

/02

Experience

2012 — Present
Miami, FL

Bringer Corporation

Business Development & Marketing Leadership
  • Drove new business development across the full supply chain — procurement, air & ocean freight, customs brokerage, small parcel, fulfillment, distribution, and reverse logistics — owning revenue strategy at every stage.
  • Developed logistics and business models that increased overall company revenue by 15%.
  • Built the company’s fulfillment center from the ground up, cutting operational costs by 20%.
  • Re-engineered invoicing procedures that cut labor hours by 50% and drove substantial profit growth.
  • Designed and launched cross-border RMA operations for U.S. Amazon sellers returning product from Mexico and Canada — an entirely new revenue category.
  • Wrote and adapted SQL queries since 2019 for business performance evaluation, SLA contract compliance monitoring, and time-critical problem solving.
  • Built custom Python and Node.js data pipelines, including mining a decade of email records to reconstruct vendor contract history in a high-stakes dispute.
  • Applied machine learning to photo data to classify products for U.S. reimportation compliance.
/03

Ventures

PrintyThing
Founder & Operator · 2021

3D-printing e-commerce business. I own the full lifecycle — product design, branding, manufacturing, listing, fulfillment, and customer service — across direct and Etsy channels.

Dronemaxie
Founder · 2021

Aerial imaging for structural, construction, and inspection photography. FAA Part 107 certified Remote Pilot operating in full regulatory compliance.

/04

Builds

78K

Quantitative trading research system

Designed, built, and operated a real-money on-chain trading system end to end — Node.js on Railway, React dashboard on Vercel, Redis state, Telegram ops alerts. Scored ~78,000 predictions across 22 strategy theses with Kelly sizing, stop-loss enforcement, and automated settlement, then shut it down on a rigorously documented negative result. Knowing when the data says no is the skill.

1:1

Production client website

Built and shipped a production website for a counseling practice — design system, booking integration, PWA, SEO and structured data — deployed on Vercel with GitHub auto-deploy and a hardened content security policy.

CAD

Parametric design-to-manufacture

Design physical products as code — parametric Python (trimesh, numpy, manifold3d) generating watertight, print-ready geometry — then manufacture them in-house in PETG, TPU, and carbon-fiber composites and sell them through PrintyThing.

3D

Browser worlds & games

Built interactive 3D experiences in Three.js — an explorable browser-based world, a touch-controlled action game, and a retro raycasting FPS — each a single self-contained file.

/05

Skills & Tools

Supply Chain
Procurement, fulfillment & inventory, air/ocean freight, customs brokerage, distribution, reverse logistics (RMA)
Business Dev
Revenue strategy, new market entry, pricing & P&L, negotiation, turnaround management
Logistics SW
SmartKargo, Magaya
Cloud & Deploy
Vercel, Railway, Upstash Redis, GitHub auto-deploy, DNS & email infrastructure
AI & Automation
Claude, ChatGPT — AI-accelerated development, pricing automation, workflow design, applied machine learning
Data & BI
SQL, Excel & Sheets (advanced), Power BI, Tableau
Making
Parametric CAD (Python: trimesh / manifold3d), 3D printing & materials (PETG, TPU, CF), Adobe Creative Suite
Code
Python, SQL, JavaScript / Node.js, React, Three.js, HTML/CSS, PHP
Education
M.S. International Business
Chapman School of Business, FIU · 2018
Languages
English · Spanish · Portuguese
Credentials
FAA Part 107 · HazMat, CFR, ITAR
Let’s talk

Hire the person
who builds anyway.

Give me a failing line, a tight budget, or a market nobody’s cracked. I’ll build you the number.

Email me