Jesus Arias Lopez

Nutcracker Memory

MVP

Persistent memory for coding agents that checks whether the code context behind a memory is still intact.

Python, MCP, SQLite, Semantic search

My contribution

Individual development: semantic retrieval, episode storage, and file revalidation using hashes.

Evidence & scope

Tests and CI in the repository. The MVP detects file changes; it does not determine whether a decision is still semantically correct.

Bexy

In development

An application aimed at reducing repetitive pre-triage and friction when connecting with doctors and arranging appointments.

Next.js, .NET 8, Frontend, Backend

My contribution

Individual development of the entire application: Next.js frontend and .NET 8 backend, since August 2026.

Evidence & scope

Visit the website to explore the application. An ongoing project focused on easier access and appointment coordination.

Java Workflow Engine

Prototype

An expense approval engine with explicit states and tasks that unlock when their dependencies are completed.

Java 21, Javalin, JDBC, PostgreSQL, Testcontainers

My contribution

Individually built the domain, use cases, JDBC persistence, and REST API, with dependency cycle detection.

Evidence & scope

Local demo and API demonstration script. The README documents unit, HTTP, and PostgreSQL integration tests.

Crescendo Database Engine

Educational project

An embedded database engine with on-disk tables, B-Tree indexes, and a practical subset of SQL.

C++17, Qt 6, B-Tree, SQL

My contribution

Individually developed the engine, query operations, and a Qt Workbench-style desktop interface.

Evidence & scope

Architecture, build instructions, and SQL examples in the repository. An educational project exploring storage and indexing.

CodeClass

Personal project

A programming class platform with real-time sessions, shared code, and questions between teachers and participants.

React, TypeScript, NestJS, WebSockets, Prisma, PostgreSQL

My contribution

Individually developed the frontend and backend, connecting the classroom experience with sessions, collaboration, and code execution.

Evidence & scope

Website and separate frontend and backend repositories to explore the interface and implementation.

Surface Defect Detection

Experiment

Steel surface defect detection, including annotation preparation, training, and failure analysis.

Python, YOLOv8, Computer vision, NEU-DET

My contribution

Individually developed the experimental pipeline: data inspection, annotation conversion, evaluation, and inference.

Evidence & scope

The README reports mAP@50 ≈ 0.736 for the 100-epoch experiment and analyzes difficult classes. An experimental result, not industrial validation.

SandboxCity Engine

Prototype

An open-world engine and sandbox prototype, organized into core, engine, game, and tools modules.

C++, CMake, MSVC, Game engine

My contribution

Individual development of the C++ prototype, exploring game systems and tools within a monorepo.

Evidence & scope

Code and instructions to build the editor and runtime on Windows with MSVC. Still a prototype.

Bexy

Full stack developer

Aug. 2026 - Present | Individual development

• Developing the entire application: Next.js frontend and .NET 8 backend.
• Building a product aimed at reducing repetitive pre-triage tasks and making doctor connections and appointments easier.

Agencia GATO

Mobile Developer Trainee

Mar. - Jul. 2025 | Team collaboration

• Integrated APIs developed by the backend team into the application.
• Improved the interface and collaborated with the team to deliver features.
• Presented progress in client meetings and incorporated feedback.

Candle

CEO & Co-Founder

Since Jan. 2025 | Project paused

• Defined the product vision and developed an MVP connecting patients with psychologists.
• Second place at Hult Prize @ USIL and second place at USIL Challenge 2025.
• Project currently paused.