Software developer · Denver, CO

Full-stack developer. Seven years of Angular, .NET and cloud platforms.

IoT platforms, enterprise case management, and an app of my own on both stores. Lately that means AI in production — a travel assistant inside the app, an agent that triages its errors, and MCP servers built so a team could query work items and schema without leaving the editor. Open to remote and Denver-metro roles, and select freelance builds.

Brendon Carrasquillo

Numbers I can defend in an interview

8s → under 2s
Screen loads, endpoints rebuilt
10MB → 0
Memory leak per tab change, found and fixed
12 screens
Restyled onto one Atlas token set
2 stores
Wander Wallet, live on iOS and Android

Metron
Full-stack work on WaterScope, the platform behind Metron's smart water meters. Meters across the US and Canada record usage every minute; WaterScope turns that into leak alerts, usage analytics and billing data. Currently migrating their legacy projects from TFVC to Git, and building cross-platform user analytics so administrators and leadership can see active users and growth.
Jul 2026 — now

FEI Systems
Full-stack developer on Carity, a cloud case-management platform — Angular, .NET/NHibernate, SQL Server. Built .NET 8 MCP servers for work-item retrieval and schema exploration.
Oct 2025 — Jul 2026

Veterans United
Contract
Found and killed a critical memory leak in month one — 10MB per tab change, gone. Built REST APIs feeding the Angular frontend.
Apr — Oct 2025

MTech Systems USA
Nearly six years across two products: Sonar, the IoT platform alerting growers on barn conditions, and Amino, the supply-chain system behind planning, traceability and financials. Led the Azure AD B2C identity migration.
Jul 2019 — Mar 2025


Calling a model API is the easy part. The work is making it safe to run unattended — tiered models so triage costs cents, hard iteration caps, atomic deduplication, and a human on every merge.

In the product
A travel assistant that knows your trip

Azure Semantic Kernel and OpenAI behind Wander Wallet's assistant: contextual chat completion, function calling for live weather, and streaming responses wired into the Ionic UI. Cloud Vision and Maps turn a place into packing, lodging and restaurant advice.

Autonomous operations
An agent that triages my production errors

It watches Sentry and Cloud Logging, separates real bugs from device noise with a cheap model, investigates the survivors through a tool-use loop with read access to logs, data and the repo — then opens a draft PR with a root cause and a fix.

Tooling for the team
MCP servers, at home and at work

Four .NET MCP servers on Cloud Run exposing Firestore, Cloud Logging, BigQuery analytics and a partner API. At FEI Systems, servers for Azure DevOps work items and SQL Server schema, plus Playwright-driven bug verification — less context-switching, faster defect resolution across the team.

Own product · iOS, AndroidLive

Wander Wallet

Architected and built end to end: currency and unit conversion, travel-document storage, real-time country and city insights, and an AI travel assistant on Azure Semantic Kernel with function calling and streaming responses. Plus Atlas, the design system underneath it.

AngularIonicFirebaseSemantic KernelOpenAIGoogle VisionBigQuery
Wander Wallet home screen: an upcoming Aspen trip with travel advisory, trip prep and suggested activitiesWander Wallet trips list showing upcoming and past trips
Client · Care services
Mariposa Home Care

One site serving three audiences: families choosing senior care, new parents needing postpartum support, and the caregivers being recruited to do the work — plus the analytics layer that tells the owner which of them is converting.

React 19TailwindAnalytics
Client · Marketing site
MooreHelp Moving

A mobile-first site for a Colorado Springs moving company, with a quote pipeline that emails the owners on every inquiry and mirrors each lead to Firestore so nothing falls through.

React 19Tailwind v4Functions
Personal · Photography
Travel journal

Photography and favourite places, mapped. The same Angular, Material and Firebase stack I use for client work, pointed at something purely personal.

Angular 20Google MapsFirebase

Languages
C# · .NET Core
ASP.NET Core
TypeScript · JavaScript
Go · SQL
Front end
Angular · Material
Ionic · Capacitor
React · Tailwind
SCSS · Design systems
Data
SQL Server · Azure SQL
Cosmos DB · Firestore
Entity Framework
NHibernate · BigQuery
Cloud
Azure IoT Hub · Functions
Stream Analytics · AD B2C
GCP · Cloud Run · Pub/Sub
Firebase · Secret Manager
AI & agents
Azure Semantic Kernel
OpenAI · Anthropic API
Model Context Protocol
Cloud Vision · Playwright

Looking for someone who owns the whole thing?

Open to remote roles and positions in the Denver metro, plus select freelance builds. Tell me what you're building.