Wedding Site
Personal wedding website for me and my partner — event details, RSVP, and a polished guest experience on wedding.jrmares.com.
ReactTailwindResponsive
Junior Mares
SQL & Full-Stack Web Developer
Full-stack developer building React apps, SQL Server backends, and workflow automation — currently shipping district-wide tools for 2,000+ employees at Amarillo ISD.
About
Who I am & how I work
Full-stack web developer at Amarillo Independent School District, where I'm one of two developers responsible for maintaining 20+ active projects — having personally deployed 5 full applications from the ground up. I build with React, React Router, TypeScript, T-SQL, and Python on Linux, and create workflow automation in Laserfiche.
Previously at General Motors, I spent almost 3 years across full-stack and database/ETL roles — migrating Oracle to PostgreSQL, automating ETL pipelines, and shipping Angular and Spring Boot applications. I also ship personal projects on domains I own and operate.
Highlights
- Full-stack developer at Amarillo ISD — team of 2, maintaining 20+ projects
- Deployed 5 applications from scratch; benefits site for 2,000+ staff
- Almost 3 years at General Motors — full-stack & database/ETL
- B.S. Computer Science, Dominican University (2022)
Tech stack
ReactReact RouterTypeScriptJavaScriptSQLT-SQLPythonSQL ServerLaserficheLinuxJavaAngularSpring BootC#.NETPostgreSQLOracleDBPL/SQLREST APIsETLTailwind CSSAzure Cloud
Projects
Selected work
Live sites, client templates, and ventures — plus my university capstone.
HVAC Business Template
Landing page template built for a potential HVAC customer — service listings, contact flow, and mobile-first design aimed at converting visitors into leads.
ReactTailwindLanding Page
Reflectivity Weather & Media
Weather platform, media, and content site for a friends' business venture — built and deployed on reflectivityweather.com and reflectivitymedia.com.
ReactTypeScriptWeb App
Campus Food Distribution App
Senior capstone at Dominican University — full-stack shopping cart app serving 200+ families, with SQL Server stored procedures, Azure deployment, and 99.9% uptime.
ASP.NET MVCSQL ServerAzureRazor
Domains
Domains I own & operate
Live properties I've built, launched, or maintain.
Resume
Experience
Professional background across enterprise software, database engineering, and operations.
Programmer/Analyst
Amarillo Independent School District
- One of two developers maintaining 20+ active projects — high ownership and accountability across the district's software portfolio.
- Personally deployed 5 full applications from the ground up, from requirements through production.
- Built a complete employee benefits website tracking FMLA, Sick Leave, and Unpaid Leave for 2,000+ active employees.
- Develop with React, React Router, TypeScript, and Microsoft SQL Server; build workflow automation in Laserfiche.
- Work daily in SQL, T-SQL, Python, and Linux server environments.
Database / ETL Developer
General Motors
- Led migration of 20+ Oracle databases to PostgreSQL — 200+ schemas, 600+ tables, 150+ views, and 55+ functions and procedures.
- Increased PL/SQL stored procedure efficiency by 95% across 60+ schemas.
- Automated ETL pipelines, reducing manual intervention by 70%.
- Designed a data-archiving procedure adopted by 15+ teams.
- Resolved 30+ help tickets weekly, unblocking 30+ developers.
- Refactored Python and VB scripts for PostgreSQL using pandas, cx_oracle, and psycopg2.
Entry-Level Full-Stack Developer
General Motors
- Delivered 67 work items, 35 user stories, and 20 epics; built 35+ PrimeNG front-end components.
- Developed Java/Spring Boot REST APIs and Angular applications with Oracle DB integration.
- Designed API architecture for Service Requests — 25% increase in user satisfaction post-launch.
- Reduced support tickets by 54% through incident management and documentation.
- Supported a team of 8 developers with Java, Spring Boot, and SQL expertise.
Web Developer Intern
Paylocity
- Developed and optimized backend services, improving API response times.
- Enhanced database queries to reduce report generation time.
- Implemented new functionality using Google Tag Manager.
- Collaborated with engineers to integrate new software features.
Inventory Control Manager
Greco and Sons
- Led inventory operations across multiple distribution centers.
- Implemented data-driven forecasting to reduce overstock and shortages.
- Developed reporting for real-time inventory tracking and analysis.
Education
B.S. in Computer Science
Dominican University — River Forest, IL
Graduated May 2022
Contact
Let's build something together
Open to full-time roles, contract work, and consulting. Tell me about your project — I typically respond within 24 hours.