santiago@dev:~$

mulberry-dev

Hi! I am Santiago

< Senior Full Stack Engineer / >

I build digital solutions that deliver value

santiago@dev:~/about-me$

About Me

santiago@dev:~/about-me$

MEXICO CITY, MX

$ cat about-me.txt

I BUILD_WHAT YOU SEE.AND WHATMAKES IT WORK.

I came to software through design.

$ whoami

Santiago Morera

MX19.43°N 99.13°W

$ passions

Solving problems
Intentional interfaces

$ git log --oneline

01I care about how products feelClear interfaces, small details, and experiences that make people feel confident.
02I want the work to lastDecisions a team can keep building on — not a demo that falls apart a year later.

SITUATIONTASKACTIONRESULT

santiago@dev:~/what-i-do$

What I Do

santiago@dev:~/what-i-do$

How I ship products.

Product Interfaces

Clear, fast, accessible screens people actually use.

Backend Systems

APIs and services that stay reliable as usage grows.

Data & Integrations

Databases, auth, and third-party services working as one system.

Modernization

Evolve what exists without throwing away what already works.

01 / FRONTEND

WHAT PEOPLE SEE

UI components
Interactions
UX & accessibility
Performance

React · Next.js · TypeScript

02 / BACKEND

HOW IT WORKS

APIs
Services
Databases
Architecture
Business logic

Node.js · Express · GraphQL

AUTH

CLIENT
API GRAPHQL
SERVICES
BUSINESS LOGIC
DATABASE

STORAGE S3

03 / FULL STACK

EVERYTHING WORKS TOGETHER

Identity, payments, data, and APIs in one product.

IDENTITY

PAYMENTS

APIs

DATA

NOTIFICATIONS

PRODUCT

04 / MODERNIZATION

EVOLVE WITHOUT BREAKING

I don't replace working businesses.I modernize the systems behind them.

LEGACY

×PHP
×Old UI
×Monolith
×Disconnected
×Hard to scale

MODERN

✓React / TypeScript
✓Node.js / GraphQL
✓Modular Architecture
✓Connected Systems
✓Scalable & Maintainable

05 / STAR METHOD

HOW I PROVE THE WORK

Past work is the evidence.I tell it as Situation, Task, Action, Result.

SITUATIONThe context I walked into.
TASKWhat I owned.
ACTIONThe decisions I made.
RESULTThe impact I can prove.

STAR

SITUATIONThe context I walked into.
TASKWhat I owned.
ACTIONThe decisions I made.
RESULTThe impact I can prove.

santiago@dev:~/stack.json$

$ cat stack.json

{
  "frontend": ["React", "Redux", "Next", "TypeScript", "JavaScript", "HTML5", "CSS3", "Sass", "Material UI", "TailwindCSS", "Bootstrap", "Ant Design", "React Native"],
  "backend": ["Node", "Express", "Passport", "SAML", "Apollo GraphQL", "TypeORM", "PHP"],
  "databases": ["SQL", "MongoDB", "Firebase"],
  "devops": ["Git - Github", "Docker", "Jenkins", "AWS", "Linux"],
  "tools": ["WordPress", "Jira", "Photoshop", "Premiere Pro", "Slack", "Cursor", "Windsurf", "Visual Studio"],
  "ai": ["Cursor Grok 4.6", "Composer 2.5", "Opus 5", "GPT-5.6 Sol", "GPT-5.5", "Fable 5", "Cursor Grok 4.5", "GPT-5.6 Terra", "Sonnet 5", "Kimi K3"]
}