Hey, I'm Lucas.

Software engineer.

I design and build APIs, integrate existing systems, and develop user interfaces and business workflows for banking and fintech products. I also build and ship my own software products end to end.

Paraguay / Remote5 yearsview cv
01

Work Experience

Software EngineerNov 2024 - Jul 2026
SODEP S.A.

Building production software for banking and fintech clients.

Aquí Pago - "Mi Tienda" module
Built the shared session between a PHP app and a new Next.js microfrontend, integrating with the existing middleware so users move between both without logging in again. Also shipped stock management and payment collection.
Banco Basa - Banking CRM
Added Redis idempotency keys so critical onboarding flows are safe to retry, and built onboarding, account creation and card issuance on top. Designed a Fastify proxy between the CRM and the bank's APIs: authentication and the encryption/decryption layer for every request and response.
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. Integrated payment gateways (Stripe, Bancard, Pagopar) end to end: checkout flows and payment confirmation webhooks, with React, Next.js and Node.js.

02

Projects

NutriOne screenshot
NutriOne2024 - present
Clinical SaaS · co-created, backend built alone

Co-created the product and designed and built the API alone: Nest.js, Prisma and Redis for patient records, anthropometric tracking, meal plans and PDF export. Also built the MVP frontend.

Next.jsNest.jsPostgreSQLRedisPrisma
Vexillum screenshot
Vexillum2026
Developer tool · AI agent orchestration

A Go CLI that orchestrates coding agents from the terminal: a commander dispatches soldiers into isolated git worktrees, and a sentinel wakes it only when one settles. I use it to develop NutriOne's current iteration.

GoClaude Code
Creacionix AI screenshot
Creacionix AI2024
Generative AI app · open source

Text generation platform with 25+ templates built on the Google Gemini API. Designed, built and deployed solo; open source on GitHub.

Next.jsGeminiClerkDrizzle
Format-X screenshot
Format-X2025
Developer tool

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

Next.jsMonacoTypeScript
03

Education

Universidad Católica Ntra. Sra. de la Asunción
Computer Engineering
2019 - present
Colegio Nacional "Prof. Luciano Bordón"
Computer Technician
2016 - 2018
04

Skills

TypeScriptJavaScriptReactNext.jsAstroNode.jsNest.jsFastifyExpressPostgreSQLPrismaRedisTailwind CSSDocker
05

About

Lucas Casco

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.

06

Get in Touch

Let's talk.

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