Available for new opportunities · Remote-friendly

Senior Full-Stack Engineer Rolando Cruz I build

7+ years shipping cloud-native systems for U.S. fintech, consumer, and healthcare. I design scalable backends in Node.js & Python, craft fluid React frontends, and run them on AWS.

View My Work Get in Touch
Mexico City — Remote (US hours)
English Fluent
~/rolando/profile live
$ whoami
Rolando Cruz · Senior Full-Stack Engineer
$ cat stack.json
"backend": ["Node.js", "Python", "FastAPI"],
"frontend": ["React", "TypeScript", "Next.js"],
"cloud": ["AWS", "Docker", "Terraform"],
"data": ["PostgreSQL", "Redis", "MongoDB"]
$ status
● shipping · open to roles
$ ▍
0+
Years experience
0%
Avg. latency cut
0+
Services shipped
0
U.S. companies
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01.

About Me

I'm a Senior Full-Stack Engineer based in Mexico City, working remotely with U.S. teams across fintech, consumer, and healthcare. Over the past seven years I've moved from internal university tools to high-traffic platforms serving millions of users — and along the way I've fallen in love with the messy, interesting parts of cloud-native systems.

Today I lead architecture and delivery at Parking Compliance Systems, where I design event-driven microservices, modernize legacy components into containers, and ship features end-to-end — from a PostgreSQL schema all the way to a React UI my customers actually enjoy using.

I care about clarity over cleverness, fast feedback loops, and writing code my teammates can read at 2 a.m. on a Friday. Fluent in English, currently learning Spanish, and always up for a hard problem.

Remote-first U.S. Hours English Fluent Async-friendly
Location Benito Juárez, Mexico City
Timezone CST · Overlaps US ET / PT
Status Open to full-time / contract
Focus Backend · API · Cloud · DX
02.

Experience

Current Jun 2023 — Present

Senior Software Engineer

Parking Compliance Systems · Florida, US

  • Architected cloud-native services for a large-scale parking compliance platform using Node.js, Python, PostgreSQL, Redis, AWS, and Docker.
  • Designed event-driven microservices that automated enforcement workflows and cut manual review time by 40%.
  • Built high-throughput APIs serving tens of thousands of daily requests, improving response times 30–50% via caching, query tuning, and async processing.
  • Led modernization of legacy components into containerized services and shipped zero-downtime CI/CD pipelines on GitHub Actions.
  • Integrated structured logging, metrics, and alerting — slashing incident MTTR.
Node.jsPythonPostgreSQLRedisAWSDockerGitHub Actions
Feb 2020 — Jun 2023

Full-Stack Engineer

Medal · Long Beach, California

  • Built and maintained features for a high-traffic consumer platform using Node.js, React, TypeScript, GraphQL, and AWS.
  • Developed scalable backend services supporting millions of user interactions and cut API latency by up to 45%.
  • Shipped real-time features with WebSockets and an event-driven architecture to power live interactions.
  • Refactored React components to reduce bundle size and improve load times across mobile and desktop.
  • Collaborated with product & design on rapid iterations, A/B tests, and feature rollouts; mentored junior devs.
ReactTypeScriptNode.jsGraphQLWebSocketsAWS
Jun 2018 — Jan 2020

Software Engineer

Truepic · San Diego, California

  • Built secure backend services for a digital authenticity platform with Python (Django / FastAPI), Node.js, PostgreSQL, and AWS.
  • Shipped APIs used by enterprise and government clients for secure image and document verification.
  • Implemented cryptographic validation workflows and tamper-detection logic to protect data integrity.
  • Optimized media ingestion pipelines, reducing processing time by 35%.
PythonDjangoFastAPIPostgreSQLAWS
Oct 2016 — May 2018

Student Web Developer

Columbia University · New York

  • Built internal web applications for university departments with JavaScript, Python, and SQL.
  • Refactored legacy code, optimized database queries, and improved UI usability for tools used daily by students & staff.
JavaScriptPythonSQL
03.

Featured Work

A selection of real projects from my GitHub — open source, end to end.

Memory Wiki — AI memory graph
AI · LLM

Memory Wiki

Turns conversation transcripts into persistent, searchable memories. An LLM extracts durable facts and merges them into a deterministic file tree, exposed through unix-style REST endpoints (ls, cat, grep). Built for reliability with a transactional outbox and SKIP LOCKED job claiming.

Claude APIfact extraction
ls·cat·grepREST over memory
TypeScriptNodePostgreSQLS3 / MinIOClaude
GitHub ↗
FormCMS — AI page builder
AI · Platform

FormCMS — AI-Powered CMS

Open-source headless CMS that generates database schemas, GraphQL queries and full UI pages from natural-language prompts. Ships a visual GrapesJS page designer and Stash, an offline PWA companion, with sharding & CDN caching for scale.

<200msp95 latency
2,400+queries / sec
4 DBsSQLite→MySQL
C#ASP.NET CoreReactGraphQLDocker
GitHub ↗
Notification Preferences — routing decisions
Backend · Architecture

Notification Preferences Service

A single source of truth for per-user notification routing. Given user, type, channel, region and time, it returns an allow/deny decision with a reason code — honoring channel preferences, timezone-aware quiet hours and global admin policies, behind a clean hexagonal architecture with a pure domain evaluator.

Hexagonaldomain core
Quiet hourstimezone-aware
Reason codeson every decision
TypeScriptNode 20ExpressPostgreSQLVitest
GitHub ↗
Construction Work Log — daily site log
Full-Stack

Construction Work Log

Lets construction foremen log daily site activity — work type, volume, worker and date — with sortable, filterable history and full CRUD validation. One command boots the whole stack: nginx serves the SPA and proxies the API while Postgres auto-migrates and seeds reference data.

One commandDocker boot
Prisma+ PostgreSQL
ReactTypeScriptViteExpressPrismaDocker
GitHub ↗
Food Truck Finder — SF map of trucks
Go · Maps

Food Truck Finder

Full-stack app that maps San Francisco's food trucks. Redis geospatial queries surface the trucks nearest you; tap a marker for the applicant, address and menu. Includes an admin CLI to search by cuisine — a Go backend with a React + Leaflet frontend, fully Dockerized.

Redisgeo queries
Leafletlive map UI
83% Gobackend
GoReactRedisLeafletDocker
GitHub ↗
NotifyHub — notification message queue
Backend · Microservice

NotifyHub — Notification Microservice

Sends mass SMS & email at scale with delivery guarantees. RabbitMQ priority queues keep transactional alerts ahead of marketing, Redis + DB constraints make requests idempotent, and row-level locking gives exactly-once provider calls. API and workers scale independently.

RabbitMQpriority queues
Exactly-onceprovider calls
At-least-oncedelivery + retries
Python 3.12FastAPISQLAlchemyPostgreSQLRedisRabbitMQ
GitHub ↗
04.

Tech Stack

Languages & Frameworks

  • Node.js
  • Python
  • TypeScript
  • JavaScript
  • Django
  • FastAPI
  • React
  • Next.js
  • Angular

Cloud & DevOps

  • AWS
  • Azure
  • Docker
  • Kubernetes
  • Terraform
  • GitHub Actions
  • GitLab CI
  • CI/CD

Architecture

  • Microservices
  • REST
  • GraphQL
  • Event-Driven
  • API Integrations
  • Webhooks
  • WebSockets

Databases

  • PostgreSQL
  • MongoDB
  • Redis
  • MySQL
  • NoSQL

Tooling

  • GitHub
  • GitLab
  • Bitbucket
  • Jira
  • Trello
  • Asana

Practices

  • TDD
  • Code Review
  • Mentoring
  • Agile
  • Observability
  • Performance
Node.js•Python•React• TypeScript•AWS•Docker• PostgreSQL•GraphQL•Redis• FastAPI•Django•Kubernetes• Terraform•Microservices•Event-Driven• Node.js•Python•React• TypeScript•AWS•Docker• PostgreSQL•GraphQL•Redis•
05.

Get In Touch

Have a role, project, or idea in mind?
Let's build something solid.

I'm currently open to remote full-stack and backend roles with U.S. teams. The fastest way to reach me is email — I usually reply within a day.

rolandocruzsantiago98@gmail.com
LinkedIn /in/rolando-cruz
GitHub /condabeta
Phone +52 56 1938 3823
Based In Mexico City · Remote