Software engineer · New York
I build systems that hold up and games you can’t put down.
Engineer at Coachable, previously Amazon Alexa. Harvard CS. Everything I ship is tested, bilingual, and finished.
55 PB
of privacy-sensitive data secured at Amazon
$1.3M
in quarterly savings from one pipeline optimization
200+
engineers coached into top tech roles
12+
projects built end to end, idea to deploy
2
native languages. Everything I build ships bilingual
01
Six projects, six different problems. Each one finished.
An edge-native event-stream API with exactly-once writes and a tamper-evident hash chain.
A twin-stick survival shooter on a hand-rolled engine: fixed timestep, spatial hash, fully deterministic.
A Dominican dominoes scorekeeper for iPhone: both teams on one screen, capicúa and all.
A playable Rawls experiment: legislate from behind the veil, then be born into your own society.
A cozy Caribbean farming game where the point is reviving the pueblo, not min-maxing the farm.
An interview-prep RPG that became a job-search cockpit: deterministic engine, AI only at the edges.
02
Don’t take my word for it. These are live right now.
Draft nine players across every World Baseball Classic and try to go 7-0. INVICTO doesn’t translate.
Draft five anime characters, survive a seven-battle tournament. 83 KB of game, all typography.
Free, in the browser, no accounts.
03
The full shelf, including what’s still in progress.
An edge-native event-stream API with exactly-once writes and a tamper-evident hash chain.
A twin-stick survival shooter on a hand-rolled engine: fixed timestep, spatial hash, fully deterministic.
A Dominican dominoes scorekeeper for iPhone: both teams on one screen, capicúa and all.
A playable Rawls experiment: legislate from behind the veil, then be born into your own society.
A cozy Caribbean farming game where the point is reviving the pueblo, not min-maxing the farm.
An interview-prep RPG that became a job-search cockpit: deterministic engine, AI only at the edges.
A personal life OS that answers one question: what’s the single best thing to do right now?
Draft nine players across every World Baseball Classic and try to go 7-0. INVICTO doesn’t translate.
Draft five anime characters, survive a seven-battle tournament. 83 KB of game, all typography.
Dominican dominoes, online with your people: 2v2, capicúa, trancao, no accounts.
A roguelike of moral consistency. You never lose for being wrong, only for contradicting yourself.
The iOS app for a real sneaker shop: drops, grails, and a catalog built to swap to Square in one file.
04
Six habits that show up in every repo I own.
01
Ledgerline runs 68 tests inside the real Workers runtime, not mocks. Conuco’s game core holds 126. If it isn’t tested, it isn’t done.
02
Every game routes its randomness through one seeded generator. A seed reproduces a run exactly, which is what makes daily challenges possible and bugs reproducible.
03
My draft games tune their balance with Monte Carlo simulation. An elite run should win 2 to 5% of the time, and the build fails if the math drifts.
04
Versioned save files, additive-only migrations, defaulted fields. A day-one save still works on the latest build.
05
Spanish and English dictionaries share one enforced type, so a missing translation is a build error, not a bug report. This site works the same way.
06
LLMs draft, suggest, and tailor. A deterministic engine always owns the outcome, with local fallbacks so nothing blocks when the API is down.
05
The resume, in one screen.
May 2023 · Present · New York, NY
Education startup helping engineers land roles at top tech companies.
July 2021 · January 2023 · Cambridge, MA
High-volume, privacy-sensitive data pipelines powering Alexa.
Summer 2019 · Urbana-Champaign, IL
One of about 40 students selected nationally for the DREU research program.
2017 · 2021
Secondary in Ethnicity, Migration and Rights. Spanish citation.
Honors: Forbes 30 Under 30 Scholar · HSF Scholar · Tuskegee Airmen Scholar · NSA Scholar · Dominican Day Parade Scholar
06
I’m Dominican, and it shows in what I build: a dominoes scorekeeper, a baseball draft game, a farming game set on a Caribbean coast that refuses to sell to the resort. I studied computer science at Harvard, then spent two years at Amazon keeping 55 petabytes of Alexa data secure, compliant, and inexpensive. Now I engineer the platform at Coachable that helps engineers land the jobs they want, and I coach some of them myself.
After hours I build games and tools. Some are for playing, some are for thinking, and all of them ship in Spanish and English, because Spanish isn’t a translation layer to me. It’s half the audience I care about.
I like engines more than frameworks, tests more than promises, and small things finished completely. Right now: a multiplayer dominoes table and a cozy pueblo by the sea.
07
The fastest way to reach me is email. I read everything.