Hey, I'm Lucas.

Software engineer.

I work across the stack on banking and fintech products in production, and I build and ship my own SaaS end to end. From the database to the PDF the user downloads.

Paraguay / Remote4+ years

Work Experience

Software DeveloperNov 2024 - Present

SODEP S.A.

Building production software for banking and fintech clients across the stack.

Aquí Pago - "Mi Tienda" module

Shipped a new Next.js module as a microfrontend inside an existing PHP app, with a shared session between both so users move between them without logging in again. Built stock management and payment collection.

Banco Basa - Banking CRM

Client onboarding, account creation and card issuance. Built a Fastify proxy between the CRM and the bank's APIs that handles authentication and the encryption/decryption layer for requests and responses, and used Redis idempotency keys so critical onboarding flows are safe to retry.

Banco Interfisa - Business Banking Web

Frontend for high-complexity business banking flows: loan payments, receipt history and supplier management. Delivered on the committed timeline.

Fullstack Developer - Freelance2021 - 2024

Independent

Web solutions for clients across different domains, under NDA. React, Next.js and Node.js.

Projects

NutriOne2024 - present

Clinical SaaS · built solo, end to end

Patient records, anthropometric tracking, meal-plan builder and PDF export for nutrition professionals. I own every layer: data model, API, interface, deploy.

Next.jsNest.jsPostgreSQLPrisma

Website

socratic-duck2025

Claude Code skill · published

An agent skill that pressure-tests architectural decisions before you commit to them, through Socratic questioning, and writes a structured decision log.

Claude Codeskills.sh

Website Source

Format-X2025

Developer tool

Convert between JSON, XML, YAML, CSV and plain text in the browser, with a live editor.

Next.jsMonacoTypeScript

Demo Source

Creacionix AI2024

Generative AI app

Content generation from user input, built on the Gemini API.

Next.jsGeminiDrizzle

Demo Source

Education

Universidad Católica Ntra. Sra. de la Asunción

Computer Engineering

2019 - present

Colegio Nacional "Prof. Luciano Bordón"

Computer Technician

2016 - 2018

Skills

TypeScriptJavaScriptReactNext.jsAstroNode.jsNest.jsFastifyExpressPostgreSQLPrismaRedisTailwind CSSDocker

About

I got into programming in 2017, building a 2D platformer with two classmates that took second place at a national contest. That was the moment it clicked: software could make things people actually want to use.

I took it seriously during the pandemic and haven't stopped since. Outside the editor I'm self-taught in philosophy and pulled toward cinema. I think about systems the way you'd think about a cut: get the structure right first, then worry about the rhythm.

Get in Touch

Let's talk.

Open to mid-level fullstack roles, remote. The fastest way to reach me is a direct message.

LinkedInlucascodev GitHubisaias-alt X@lucascodev Emailsay hi