MR●

Principal / Staff Software Engineer

Building
systems that
scale.

Full-stack & distributed-systems engineer with 15+ years shipping cloud-native apps that serve millions of requests a day — and a graphic-design background that keeps them holding up technically and visually.

Let’s build something → See the work
Moises Romero
Apollo GraphQLHBO MaxWalmartAtlassianAmazoneBayCiscoWells Fargo

Selected work

Impact, not job descriptions.

01 2021–Now

Apollo GraphQL

Staff Software Engineer

Take Apollo Studio features from concept to launch with product and design, and keep the high-volume telemetry ingestion pipeline reliable and fast.

  • GraphQL
  • React
  • TypeScript
  • Kotlin
  • GCP/Spanner
02 2021

HBO Max

Senior Engineer (Contract)

Built event-driven billing microservices — payments, tax, adjustments, refunds — where a single discrepancy means real money. Tested to a near-zero error margin.

  • Node.js
  • TypeScript
  • AWS Lambda/SQS/SNS
  • Cypress
03 2019–2021

Walmart Global Tech

Senior Staff Engineer

Led the migration of a monolithic REST estate to GraphQL for high-traffic storefronts (ASDA, Walmart CA/MX) and unified the experience across properties.

  • GraphQL
  • React
  • Redux-Saga
  • Kubernetes
  • Cassandra
04 2017–2019

Atlassian

Senior Engineer

Built the new Confluence Cloud to feature parity while modernizing the codebase, and shipped CI/CD and DX tooling that sped up the whole team.

  • TypeScript
  • React
  • Emotion
  • Node.js
  • Webpack
05 2011–2015

eBay (Classifieds)

Engineer → Dev Manager

Designed a global classifieds framework across many countries and brands — high-traffic pages serving millions of hits a day — and a Node middle-tier that sped up the REST layer.

  • Node.js
  • Angular/React
  • MySQL
  • MongoDB
  • multi-locale
06 2016–2017

Amazon Lab126

Software Architect (Contract)

Architected a cross-org knowledge platform unifying docs, diagrams, and media into one portal to head off recurring problems and reduce product-recall risk.

  • Angular
  • TypeScript
  • Node.js
  • AWS

Toolkit

The stack I reach for.

Frontend

React · Next.js · Angular · Vue · Redux/Saga · Emotion

Backend

Node.js · NestJS · GraphQL (Apollo) · REST · WebSockets · Spring MVC

Data

DynamoDB · PostgreSQL · MongoDB · Spanner · BigQuery · Cassandra

Cloud & DevOps

AWS · GCP · Kubernetes · CI/CD · Datadog · CloudWatch

About

Engineer who came up through design.

I build high-concurrency systems where correctness really matters — from real-time billing pipelines to global e-commerce platforms — and I help teams settle on scalable patterns and solid engineering standards.

I started in graphic design (M.A., Graphic Design) and moved into engineering, so I’m comfortable bridging the two. The products I ship are sound under load and considered in the details. Currently open to fully remote roles.

Availability

Grab a time.

Pick an open slot below and it books straight onto my calendar — you’ll get a confirmation and a video link, no back-and-forth.

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Contact

Let’s talk.

Hiring, contracting, or just comparing notes on distributed systems — drop a line and I’ll get back to you.

contact@moisesromero.com