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Jonathan Contreras

Full-Stack Developer building AI-powered tools and web products that solve real problems for real people.

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Houston, TX

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© 2026 Jonathan Contreras. All rights reserved.

About Me

Get to know more about my journey, skills, and what drives my passion for technology.

My Story

Before I ever touched code, I was the kid at the keyboard late at night teaching myself songs by ear — no formal lessons, just me pulling apart chords until I understood them. By senior year, music was the plan. Then I hit the audition wall: every program wanted classical training I didn't have. The path I'd imagined wasn't going to look the way I'd imagined it.

Somewhere in that same season I ended up in AP Computer Science Principles — a friend mentioned it, or maybe my counselor; I genuinely can't remember. The project that stuck: we built a hand-gesture controller for the Google dinosaur game. No keyboard, just a webcam and code I'd written connecting a camera feed to a game response. That was the first time I understood that programming wasn't textbook problem-solving — it was building things that actually did things. I didn't walk out thinking this is my calling. I walked out thinking what else can I make?

That self-taught instinct — hear something interesting, pull it apart, figure out how it works — turned out to translate directly into how I write code. I see patterns in systems the same way I used to hear them in music. I still play piano every week and serve as music director at church. I didn't leave that behind. I just found a second instrument.

Technical Skills

• JavaScript/TypeScript
• React & Next.js
• Python
• PostgreSQL
• AWS & Docker
• Git & CI/CD
• Computer Network & Security
• Data Structures & Algorithms

My Journey

2026

Research Analyst Intern — Full-Stack Component

Crime Stoppers of Houston, Glenda Gordy Research Center

May 2025 - Present

Built and launched the public At-A-Glance Statistics webpage, transforming crime data into a responsive and accessible UI. Designed secure API routes and a hybrid data-ingestion pipeline to fetch, aggregate, and cache data from internal systems and vetted public feeds, enabling low-latency updates while safeguarding sensitive information.

Private Tutor - Computer Science & Programming

Self-employed

Feb 2025 - Present

Providing one-on-one tutoring in AP Computer Science A and AP Computer Science Principles, guiding students through programming concepts, algorithms, and problem-solving strategies. Helping learners strengthen coding skills, prepare for exams, and build confidence in applying computer science knowledge.

Computer Science Teaching Assistant

Houston Christian University

Aug. 2023 - Present

I currently hold weekly help desk hours to support students and faculty with coursework, labs, and hands-on projects. I troubleshoot hardware/software issues, mentor 25+ students weekly, and test new technologies for integration into labs. This work directly supports the delivery of an ABET-accredited curriculum and enhances practical skill development.

Bachelor of Science in Computer Science

Houston Christian University

Aug. 2022 - Present

Expected graduation is May 2026.

2025

Undergraduate Data Science Researcher

The Data Mine - Purdue University

Aug. 2024 - May 2025

Developed Python-based data cleaning and visualization tools that enhanced the Houston Fire Department's response-time analysis. Leveraged these insights to design data-driven strategies that optimized resource allocation and improved emergency response efficiency.

2024

Intern Developer

Bible Study Fellowship

May. 2024 - Sept. 2024

As an Intern Developer at Bible Study Fellowship, I helped restructure the organization's website by migrating it to WordPress and implementing open-source solutions to improve usability, scalability, and cost-effectiveness. I collaborated with the team to design a robust web architecture, troubleshoot hosting and integration issues, and modernize the site's infrastructure to better serve its audience and goals.

Undergraduate Data Science Researcher

The Data Mine - Purdue University

Aug. 2023 - May 2024

Collaborated with V2X to develop an AI-driven chatbot powered by a Large Language Model (LLM) to answer aviation-related questions using specialized documentation. Trained and fine-tuned the model with NLP techniques, applying R, SQL, and Python to enhance data analysis and processing. Gained hands-on experience in AI development, machine learning, and chatbot integration.

Faith & Values

My faith is the foundation of who I am and guides my approach to work and life.

Verse of the Day

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