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Sandra Chaparro — Software Engineer

Software Engineer | Cybersecurity

Sandra Chaparro

Full-stack software engineer building focused expertise in cybersecurity.

View My Work Download Resume

Work

Featured Projects

Live websites I designed and built end-to-end.

Screenshot of the DR Tile Solutions website

DR Tile Solutions

Freelance Client Website

A business website for a tile and remodeling company, with services, a project gallery, service areas, and FAQs built to drive quote requests.

Astro Tailwind CSS Vercel
View Project →
Screenshot of the MC the Barber website

MC the Barber

Freelance Client Website

A website for a local barbershop featuring a gallery, testimonials, location details, FAQs, and booking/contact functionality.

Astro Tailwind CSS Vercel
View Project →
Screenshot of the Salvatierra Digital website

Salvatierra Digital

My Web Development Business

The website for my own web development business, offering custom website development, SEO, and ongoing website support.

Astro Tailwind CSS Vercel
View Project →

Other Projects

Raptor CRM

Personal Project — In Progress

A mobile-first CRM replacing a paper notebook for a user juggling two sales roles — car sales and independent medical insurance — keeping both client lists organized and quick to access between calls.

View Repo →

Dental Practice Management System (EHR)

DSD Cohort · Plano, TX

February – March 2025

  • Architected a multi-tenant EHR platform using Next.js and Express.js, enabling seamless support for multiple dental practices from a single codebase.
  • Developed RESTful APIs for appointment scheduling, treatment tracking, payment processing, and product sales.
  • Implemented JWT-based authentication and role-based access control, protecting sensitive patient health information.
  • Designed responsive wireframes in Figma and implemented a modern front-end interface using TypeScript and Tailwind CSS.
Next.js TypeScript Tailwind CSS Express.js JWT Linux Figma
Frontend Repo → Backend Repo →

Grocery Inventory Management System

DSD Cohort · Plano, TX

March – April 2024

  • Developed a full-stack React application that suggests 100+ recipes based on available ingredients and auto-generates grocery lists.
  • Integrated a third-party recipe API and designed a MongoDB backend to store API responses and user preferences.
  • Built an ingredient-matching recommendation algorithm to reduce food waste and streamline meal planning.
  • Delivered iterative features across the full SDLC using a Kanban methodology.
React MongoDB REST APIs
View Repo →

Career

Professional Experience

A summary of my experience — full details are in my resume below.

  • Software Engineer

    Mayan Technologies

    April 2025 – January 2026

    • Built full-stack features for a specialty healthcare EHR — secure payment processing, appointment scheduling, and product sales modules serving 15+ practitioners.
    • Diagnosed and resolved critical performance bottlenecks by optimizing inefficient MySQL queries, cutting API response time from 3.5s to 207ms (a 70% reduction).
    • Strengthened API security by implementing authentication and authorization middleware across endpoints, preventing unauthorized access to sensitive patient information.
    Node.js Express React Next.js MySQL APIs

  • Web Developer

    SWITECH

    July 2024 – April 2025

    • Designed and deployed responsive websites, improving user engagement and cross-device usability.
    • Partnered directly with business owners to translate needs into high-performance web solutions.
    • Implemented automated CI/CD pipelines with Vercel and Git, achieving 100% zero-downtime deployments.
    React Bootstrap Astro Figma Vercel

  • Computer Science Tutor

    Superprof

    December 2022 – July 2024

    • Provided individualized instruction to 10+ students in Java, JavaScript, and C++ through hands-on coding and pair programming.
    • Designed and implemented a curriculum focused on Software Development Life Cycle (SDLC) best practices, resulting in a 35% improvement in student code quality metrics.
    Java C++ JavaScript

  • Software Engineer Co-Op

    Motorola Solutions, Inc.

    May 2022 – October 2022

    • Developed a centralized React dashboard with OAuth 2.0 authentication integrating the Jira API, providing real-time project visibility across sites.
    • Built responsive Bootstrap front-end interfaces, improving page load performance and data interactivity.
    • Completed FedRAMP compliance training covering security controls, authorization requirements, and industry best practices for services handling federal government data.
    React OAuth 2.0 Jira API Node.js Express

Transition

Cybersecurity

Grounded in real application security work, and growing into threat intelligence, OSINT, and threat hunting through certification study and continued learning.

Focus Areas

Threat Intelligence OSINT Threat Hunting Application Security AI Security

Applied Security Work

  • Implemented authentication and authorization middleware protecting sensitive patient data in a production healthcare EHR.
  • Built JWT-based authentication and role-based access control (RBAC) to safeguard protected health information (PHI).
  • Completed FedRAMP compliance training covering security controls, authorization requirements, and best practices for federal data.
  • Actively studying for CISSP and CompTIA Security+ while applying security-first practices in day-to-day development work.

Certifications & Credentials

ISC2 Certified in Cybersecurity (CC) — Cert Prep

LinkedIn Learning

Completed

Cert prep course completed via LinkedIn Learning — not the official ISC2 CC exam credential.

View Credential →

CISSP

ISC2

In Progress

CompTIA Security+

CompTIA

In Progress

Cloud Foundations

Epicor

Completed

Application Studio Foundations

Epicor

Completed

About

Who I am

I'm a software engineer based in the Dallas–Fort Worth area with a full-stack background spanning healthcare EHR platforms, dashboards, and client web products. I'm now transitioning into cybersecurity — grounded in real application security work I've done in production (authentication, authorization, and protecting sensitive data), and building focused knowledge in threat intelligence, OSINT, threat hunting, and AI security through certification study and self-directed learning. I care about technology that actually helps people, and I bring a developer's instincts to security problems: curious, detail-oriented, and always growing.

What matters to me

Secure by design

Security isn't a phase — it's a mindset.

Mission-driven tech

I'm drawn to projects where the work serves communities, not just growth metrics. Impact is part of my definition of done.

Always evolving

Transitioning from SWE to security taught me that curiosity is a skill. I bring a developer's instincts to hard security problems.

Toolkit

Technical Skills

JavaScript TypeScript SQL C# Node.js Express React Next.js Chakra UI Tailwind CSS Bootstrap MySQL (Sequelize) MongoDB (Mongoose) CI/CD Linux Git/GitHub APIs OAuth 2.0 JWT

AI Fluency

AI Fluency Framework & Foundations

Anthropic

Completed

Claude Code 101

Anthropic

Completed

Claude 101

Anthropic

Completed

Background

Education

  • B.S. in Computer Science and Information Systems Engineering

    Fort Hays State University

    June 2019 – December 2022

    • Delivered full-stack projects using Java, JavaScript, PHP, and C++ with a 100% on-time completion rate, deployed on Heroku and Netlify.

  • English

    Arizona State University — Global Launch

    2018

Get in touch

Contact

Have a role, project, or opportunity in mind? Send a message and I'll get back to you.

Find me elsewhere

LinkedIn

© 2026 Sandra Chaparro.