Miguel Esparza Jr

MIGUEL ESPARZA

Senior Software Engineer - Full Stack

Edinburg, Texas
mike@mikedavinci.com
GitHubLinkedIn

I help service businesses capture more leads and close more deals without hiring a full sales team. I build AI-powered systems that work 24/7鈥攃apturing leads from your website, qualifying them automatically, and moving them through your pipeline while you focus on running your business. No more missed inquiries at 11pm. No more leads falling through the cracks. With over 10 years building production software, I connect your website, CRM, and messaging channels (WhatsApp, SMS, Facebook, Instagram) into one automated engine that actually works. You get the leads, the follow-ups happen automatically, and you close more business with way less manual work.

University of Texas at Austin

Graduate Degree in Artificial Intelligence and Machine Learning
University of Texas at Austin, 2023

Key Technologies

React
Next.js
Vue.js
TypeScript
Node.js
NestJS
GraphQL
PostgreSQL
AWS
Azure
AI/ML

What I Can Help You With

From fixing broken websites to building AI-powered tools, I handle the technical work so you can focus on your business.

Website & Applications

Fix bugs, broken pages, 404 errors, mobile issues

Automations & Integrations

Connect your CRM to email, SMS, and other tools

Tracking & Analytics

Set up GA4, Meta Pixel, conversion tracking

IT & Technical Operations

Domain and DNS configuration

AI & Automation Tools

AI chat assistants for your website

Cloud & Server Infrastructure

AWS, Azure, and Digital Ocean architecture and management

Simple, Transparent Pricing

Monthly retainer plans that scale with your needs. No surprises, no hidden fees.

馃帀
LIMITED TIME OFFER

Founders Pricing: $30/hr

for your first 3 months

After 3 months, pricing moves to $40/hr equivalent.

Lock in your spot now.

馃敡

Starter Support

$300

10 hours/month

  • Monthly maintenance and monitoring
  • Quick fixes when things break
Most Popular
馃殌

Growth Support

$900

30 hours/month

  • Consistent progress on improvements
  • Building new features and integrations
馃拵

Dedicated Support

$1800

60 hours/month

  • Aggressive execution and fast timelines
  • Larger builds and complex projects

Work Experience

PilotWizard.ai

Founder & Lead Engineer

PilotWizard.ai

RemotePresent

  • Built full-stack AI-powered lead automation platform from concept to production
  • Architected multi-step onboarding wizard that captures and qualifies leads automatically
  • Engineered secure authentication system with NextAuth.js and role-based access control
  • Developed scalable NestJS backend with REST APIs and TypeORM for data persistence
  • Integrated OpenAI to automate personalized email campaigns and lead nurturing sequences
  • Implemented Stripe payment processing with webhook handlers for subscription management
  • Built transactional email system using Sendgrid with custom HBS templates
  • Deployed CloudFlare CDN and security layer for global performance and DDoS protection
Nuxt 3
Tailwind CSS
TypeScript
NestJs
POSTGRES
TypeORM
Revive Health Inc

Senior Software Engineer

Revive Health Inc

Boston, Massachusetts, United States 路 RemoteOct 2023 to Dec 2024

  • Led the development and modernization of front-end components using Vue.js, including migrating legacy codebases
  • Maintained and extended .NET back-end services built with C#, ensuring optimal performance and scalability
  • Managed and optimized MySQL database, implementing best practices for secure data handling
  • Ensured all code and infrastructure handling patient data complied with HIPAA standards
  • Implemented white-labeled organizational features for healthcare partners
  • Contributed to feature flag systems for safe deployments
  • Collaborated on CI/CD pipelines using Jenkins for automated testing
  • Worked with product and compliance teams on critical features
Vue.js
C#
.NET
MySQL
Jenkins
OneRail

Senior Software Engineer

OneRail

Orlando, FLMay 2022 to Oct 2023

  • Generated responsive user interfaces with React and user feedback surveys
  • Integrated mapping functionalities with Google Maps API
  • Developed backend features in Node with TypeScript
  • Implemented microservices for distinct business logic
  • Developed RESTful APIs with Authentication Guards
  • Implemented Launch Darkly for feature management
  • Managed Azure Server operations
React
TypeScript
Node
MySQL
Jest
Cypress
Launch Darkly
Azure
HealthIQ

Senior Software Engineer

HealthIQ

San Francisco, CADec 2020 to May 2022

  • Developed frontend components with React
  • Built Node backend server with Express
  • Developed GraphQL and REST APIs
  • Managed Postgres database with TypeORM
  • Oversaw version control and CI/CD processes
  • Managed AWS hosting and scaling services
React
TypeScript
Node
GraphQL
TypeORM
Postgres
AWS
TimiHealth Inc

Senior Software Engineer

TimiHealth Inc

Austin, TXJan 2016 to June 2020

  • Implemented React patterns and hooks for application state
  • Developed high-availability Node.js backend
  • Managed SQL database schemas and queries
  • Ensured security of sensitive healthcare data
  • Optimized application performance
React
Node
TypeORM
MySQL
AWS
MyDoctorsChat

Full Stack Software Engineer

MyDoctorsChat

Austin, TXJan 2014 to Jan 2016

  • Created HIPAA-compliant user interfaces
  • Developed interactive telemedicine features
  • Integrated Node.js services for real-time communication
  • Managed SQL databases for healthcare data
  • Developed RESTful APIs for system interoperability
HTML
CSS
jQuery
JavaScript
Node
MySQL
AWS

Ready to Work Together?

Let's talk about your project

Whether you need ongoing support, a one-time project, or just want to explore how I can help your business, the first call is always free.

No pressure, no sales pitch. If we're not the right fit, I'll tell you honestly.