Backend software

hi, marcos here.

Backend Engineer. 22-years-old. I build Java/Spring backends, REST APIs, and tools that make systems easier to understand.

I love debugging weird bugs, digging into OS and memory details, and turning that knowledge into better backend code.

Los Angeles, CA

Open to backend roles.
Resume GitHub LinkedIn Email
Marcos outdoors
Marcos portrait
Marcos outdoors
UCSD logo
Dec 2023 - Mar 2025

UC San Diego - Software Engineering Tutor (CSE 110)

Java / OOP / Testing / Git / Logs & Debugging

  • Supported ~200+ students per quarter across Java, testing, and design reviews.
  • Debugged student projects by reading logs, stepping through code, and clarifying requirements.
  • Partnered with instructors on labs, demos, and exam proctoring.
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Feb 2025 - Jun 2025

UC San Diego - Embedded Systems Researcher

Microcontrollers / Thermal control / H-bridges / LabVIEW / Oscilloscope

  • Developed and validated firmware-driven thermal control systems using microcontrollers, H-bridge drivers, and real-time sensor feedback for medical and haptic purposes.
  • Conducted systematic tests on thermal response, control-loop latency, and signal integrity using LabVIEW, oscilloscopes, and multimeters to reproduce edge-case failures and improve stability in long-duration operation by ~30%.
  • Collaborated with faculty to diagnose performance bottlenecks and refine reliability across sensing and actuation pathways.
SCDC logo
Jun 2025 - Sep 2025

SCDC - Tech Camp Instructor

Project-based teaching / Java / Security basics

  • Designed and taught project-based courses (Java games, AI/ML, cybersecurity).
  • Built demo apps and lesson material to explain algorithms and systems concepts.
UCSD logo
San Diego, CA

UC San Diego - B.S. Computer Engineering

Algorithms & Data Structures, Computer Security, Operating Systems (Multithreading, CPU Architecture), Computer Networks (TCP/IP, Routing), Software Engineering, AI & Machine Learning (CNNs, Reinforcement Learning, Pathfinding, Probabilistic Models), Databases.

CAMS logo
4.45 GPA (unweighted)

California Academy of Mathematics and Science

FIRST Robotics Team 687 The Nerd Herd - Innovation in Control (2019), Autonomous (2019), Regional Finalist (2018), Quality Award (2021); Chess Club; Intramural Soccer AA champion.

Featured Projects

view more ->
CourseCircle UI

CourseCircle - Study-sharing platform

Java Spring Boot PostgreSQL Docker REST APIs

Spring Boot + PostgreSQL backend with REST endpoints for sessions, users, and course resources.

JWT role access, streaming file uploads/downloads, and deduped storage for large PDFs and exams.

GitHub
PantryPal UI

PantryPal - AI-powered recipe assistant

Java backend REST API Docker MongoDB

Implemented backend endpoints for managing ingredients, recipes, and AI-generated suggestions behind a clean internal API.

Added logging and tests to debug failures as external AI APIs evolved.

GitHub

Recent Contributions

more on GitHub ->
Dolphin Emulator - Add Apploader Date column

Exposed parsed apploader date in the game list with new column enum, toggles, sorting, and persisted visibility.

View pull request
raylib - Fix modulo bias in GetRandomValue

Replaced modulo-based RNG fallback with rejection sampling to remove bias; documented analysis and tests.

View pull request

Contact

wanna grab a coffee or chat technology? reach out here.

Email GitHub LinkedIn