Francisco
Valencia.

Backend & Software Developer

I build software focused on backend systems, APIs, databases, and architecture. I also work on frontend when a project needs it, taking applications from design through deployment and maintenance.

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Backend engineeringAPIsDatabasesSoftware architecture

TECHNOLOGIES & TOOLS

Tech stack.

Backend & architecture

PythonFastAPISQLJavaSpringDjangoREST APIsHexagonal architectureDomain modelingAuthentication

Data & infrastructure

PostgreSQLMySQLRedisSQLAlchemyAlembicDockerDocker ComposeLinuxUbuntu ServerNginxCoolifyTraefikCloudflareKeycloakSelf-hosting

Frontend & desktop

ReactTypeScriptJavaScriptHTMLCSSVitePuckPySide6Kivy

Automation & tools

GitGitHubGitHub ActionsGitLabVS CodeCI/CDTestingDeploymentFFmpegyt-dlpRQMCPEmbedded systemsMicrocontrollers

SELECTED WORK

Projects I work on.

A selection of personal projects, from backend services and file processing to desktop applications.

SpiderFinance

Multi-user web application for organizing and reviewing personal finances.

Python · FastAPI · PostgreSQL · React

Cliponomicon API

Modular backend for managing, processing, and serving videos.

FastAPI · MySQL · Redis · FFmpeg

SpiderPortfolio

Visual page editor with reusable components, drafts, and publishing.

React · Puck · FastAPI · PostgreSQL

SpiderToMP3

Desktop application for downloading and converting media.

Python · PySide6 · yt-dlp · FFmpeg

View all projects

HOW I WORK

Architecture, deployment, and maintenance.

I also take care of the work around the code: architecture, containers, deployments, automation, and maintenance. I aim to build understandable systems that can evolve with a project.

PROFESSIONAL CONTACT

Let's talk software.

francisco.valeespa@hotmail.com LinkedIn Explore GitHub