Hi, I'm

Diego Vargas

Systems Engineering Student · Software Developer

I build digital tools that solve real problems.

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About Me

I'm a Systems Engineering student and software developer based in Tarija, Bolivia. I build practical digital tools across backend systems, web interfaces, databases, and mobile experiences.

I work from the problem outward: I listen to the people using a process, clarify what matters, and turn it into maintainable software. That lets me communicate with technical teams, recruiters, and local clients without losing sight of the outcome.

For LION, I helped turn a manual billing process from about one hour into 15 minutes — 75% less time — and the system remains in active use by the agency.

20%Higher pass rate
30%Lower assignment dropout
40+Support sessions
150+Requests answered

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Projects

Selected academic and client-facing work, with context for what is live, in progress, or available as evidence.

LION — Business Management System — Mockup

LION — Business Management System

Lead Developer — end-to-end delivery from client meeting to production

Active use

Helped reduce a manual billing process from about 1 hour to 15 minutes — 75% less time. Covers quotations, jobs, clients, and payments, and remains in active use.

React 19TypeScriptSupabasePostgreSQL
InnHub — Accommodation Management System — Prototype

InnHub — Accommodation Management System

Full-Stack Developer — architecture, design, and implementation

Academic MVP · Active development

Academic MVP in active development for accommodation operations, covering properties, reservations, housekeeping, maintenance, billing, and reporting.

ReactTypeScriptTailwind CSSPostgreSQLInsForgeVitest
Digital Labor Gap — BI Strategy — Mockup

Digital Labor Gap — BI Strategy

Dashboard Lead — pipeline integration, data warehouse, and deployment

Demo temporarily unavailable · Repository and screenshots available

Team BI project measuring the digital skills gap in Bolivian IT education through an ELT pipeline, data warehouse, AI assistant, and dashboards.

PythonSQL ServerStreamlitGroq API
Tourism Microservice — Architecture

Tourism Microservice

Backend Developer — API design and containerization

Academic project · Repository only

Academic, repository-only REST API for tour management, reservations, and payments, containerized with SQL Server and automatic migrations.

ASP.NET Core 9C#DockerSQL Server

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Skills

Tools I use to turn real requirements into working software.

Backend

C#ASP.NET CorePHPLaravelPythonTypeScript

Architecture

Clean ArchitectureRepository PatternUnit of WorkREST APISOLID

Databases

PostgreSQLSQL ServerMySQLMongoDBSupabaseInsForge

DevOps & Tools

GitDockerDocker ComposeLinuxStreamlitVercelScrum

Frontend

React 19TypeScriptTailwind CSSAstroViteVitest

Mobile

React NativeExpoNativeWindZustand

AI Tools

Pi AgentOpenCodeCodex

Soft Skills

Client CommunicationProblem SolvingTeam CollaborationAdaptabilityTechnical Leadership

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Get in Touch

Open to remote roles and selected projects

Open to remote roles and selected projects, including practical work with local businesses.