Carlos
Sandoval.

Lead Software Engineer

Currently leading platform engineering at a healthtech company (under NDA — happy to walk through it). Previously cloud infrastructure at Amazon Web Services.

/Multi-year healthcare platform rebuild
/Solo Lead, frontend → DB → cloud
/Prior: AWS cloud infrastructure
Carlos Sandoval

Selected work.

A few personal projects spanning IoT, full-stack, and tooling. Production work is under NDA — happy to walk through architecture and decisions in conversation.

Full-Stack

Support Desk Project

A full-stack ticketing system web application built with the MERN stack and React-Redux Toolkit. Designed to handle user authentication, protected routes, and ticket management for products and services.

MERN · JWT auth · Redux Toolkit · role-based access

MongoDBExpressReact
Full-Stack

House Marketplace

Full stack application using React to create real estate property listings for both rent and sale, in addition to special offers at a discounted price.

Firebase · Google OAuth · Maps integration

ReactFirebaseAuthentication
Chrome Extension

Weather Chrome Extension

The Chrome Weather extension is a feature-rich weather application that displays the current weather conditions for multiple cities. The extension integrates with the WeatherAPI to retrieve the latest weather data. Users can configure the extension to display the temperature in either Celsius or Fahrenheit and can also choose to display the weather in an overlay that can be toggled and set to open by default on new tabs. Additionally, the extension features a temperature badge that displays the current temperature in the browser toolbar.

Persistent overlay · multi-city storage · badge updates

JavaScriptChrome APIHTML/CSS
Chrome Extension

Pomodoro Chrome Extension

A Chrome extension to manage Pomodoro sessions and track TODO tasks. Includes a main popup page to interface with the timer, an options page to set preferences, and a background script to handle timer logic and task tracking.

Background timer · Chrome Storage · alarms API

JavaScriptHTML/CSSChrome Storage API

How I work.

Four operating principles I bring to every system I lead.

01

Own the system end-to-end.

Frontend, services, data layer, infra. The seams between layers are where most production failures live — owning all of them is how you make those failures rare.

02

Decisions over diagrams.

Every non-trivial system change is a written decision: what was chosen, what was rejected, and why. Future-me (and the team) need the trade-off, not the topology.

03

Boring on purpose.

Lean toward Postgres, plain HTTP, and a small dependency surface. Novelty is reserved for the parts of the product that are actually differentiated.

04

Mentor by review.

Standards are set in pull requests, not docs. Tight, specific code review is how a single engineer's taste becomes a team's shared vocabulary.

Experience.

  1. Oct 2023 — Present

    Lead Software Engineer

    Healthtech (NDA)

    Solo lead on a multi-year platform rebuild. Own architecture across frontend, services, data, and AWS infrastructure. Set engineering standards through review; mentor contributors and contractors.

  2. Apr 2023 — Oct 2023

    Full Stack Engineer

    Healthtech (NDA)

    Shipped end-to-end product features and contributed to performance, reliability, and infra work that preceded the lead role.

  3. Jul 2021 — Mar 2022

    Cloud Support Engineer

    Amazon Web Services

    Resolved production incidents on EC2, S3, EMR, and networking for enterprise customers. High-volume exposure to real distributed-systems failure modes.

Education
B.S., Computer Information Systems·University of New Hampshire·High Honors

Let's talk.

Open to senior and lead engineering roles. Easiest path is email — happy to share more about the production work in conversation.

© 2026 Carlos Sandovalsandval.com