Juan Ignacio Rodríguez Mariani — Information Systems Engineer

About

I build and operate production web platforms end to end: from API design to deployment and release management on Linux infrastructure I run myself. Information Systems Engineer, graduated from Universidad Nacional del Sur.

By day I work as a Software Engineer at NexoSmart (Laravel + Next.js). Alongside that, I co-created Cuonti, a multi-tenant tax-automation SaaS used in production by 50+ active clients. Agentic AI tooling — Claude Code in particular — is a core part of how I ship.

Information Systems Engineering — Universidad Nacional del Sur (2026)

Juan Ignacio Rodríguez Mariani — Fig. 01 — Bahía Blanca, Argentina

Experience

NexoSmart

Software Engineer

Sep 2025 – present · Software Developer Intern Jun–Sep 2025

Develop REST APIs in Laravel and frontend features in Next.js for client-facing products.
Reduced response times on the highest-traffic endpoints with database indexes and Laravel query caching.
Own server configuration, production deployments and release cycles on Linux with Nginx.

XenovaIT

Lead Engineer & Technical Director · self-employed

Jan 2025 – present

Independent software practice run in parallel with my role at NexoSmart — client engagements handled end to end: requirements scoping, architecture and operations.
Built and operate a private management platform used by 10+ partner companies in the food industry, integrating third-party services into a single Laravel + Next.js system.
Built a management platform for 5taPata (retail) that replaced manual administration and inventory workflows with one web application.

Le Pas Sage

Freelance Full-stack Developer

2024 – 2025

Built an e-commerce platform end to end: Laravel backend, Next.js storefront and payment integration.

Projects

3.1 — In production

Cuonti

Co-creator & full-stack engineer

Multi-tenant SaaS that automates Argentine tax compliance for accounting firms. In production with 50+ active clients and 150+ registered accounts.

50+
active clients: 150+
registered accounts

Native integrations with ARCA (Argentina's federal tax agency): electronic invoicing and F.931 payroll-tax filing generation.
In-product AI assistant that lets accounting firms query and operate on their tax data.
Multi-tenant architecture serving every firm from a single deployment.

Laravel
React
MySQL

3.2 — Public repo

Agro BCS

Engineer — UNS & INTA research collaboration

Mobile app built with INTA researchers that estimates bovine body condition scores (BCS) from field photos, using image processing to replace manual visual scoring.

Thesis project (with Ian Sebalt and Lucas Bazán), directed by Dr. Dana Urribarri and Dr. Martín Larrea, in collaboration with INTA.
Already in use on real farms in the region — works offline in the field.
Covered by regional press and industry media.

TypeScript
Python

github.com/JuaniRMariani/proyecto-agro_backend

3.3 — Self-hosted

Production VPS

Owner & operator

Self-managed Ubuntu VPS where my applications run in production: Nginx reverse proxy, Cloudflare in front, and deploy pipelines I built and operate myself.

Full ownership of the path from merge to production: server config, TLS, releases and rollbacks.

Ubuntu
Nginx
Cloudflare
CI/CD

Press coverage

Agro BCS in national and regional media

08 articles

How I work

Not autocomplete — agentic workflows. I run AI agents as part of my engineering process on real production codebases, with the same rigor as any other code: reviewed, tested and verified before it ships.

4.1

Multi-agent workflows

Planning agents, parallel codebase explorers and adversarial reviewers orchestrated on real features — not toy demos.

4.2

Custom skills & commands

Reusable skills and slash commands that encode repeatable engineering tasks: design systems, code review checklists, deploy routines.

4.3

MCP servers in daily work

Model Context Protocol servers wired into the workflow — project management, documentation and design tools reachable from the agent session.

4.4

Verification before done

Every AI-assisted change runs the same gauntlet: builds, tests, lint and a human review. AI speeds up the loop; it doesn't skip it.

Claude Code

daily driver — agents, skills, MCP, multi-agent orchestration

Codex

secondary agent for parallel work

Gemini

API integrations in shipped products

Skills

Backend

daily at NexoSmart and in Cuonti

Laravel / PHP
Node.js
REST API design
MySQL
PostgreSQL
Redis

Frontend

production UIs for client-facing products

React
Next.js
TypeScript
Tailwind CSS

Infra & DevOps

self-managed production VPS

Linux (Ubuntu)
Nginx
Cloudflare
CI/CD
Git

AI tooling

agentic workflows as part of how I ship

Claude Code
Multi-agent workflows
MCP servers
Codex
Gemini

Languages

Spanish (native)
English (B2)
Italian (basic)

Contact

Let's talk

Open to interesting engineering work. The fastest way to reach me is email — I answer.

juanirmariani@gmail.com

Say hello

Juan IgnacioRodríguezMariani

01About+

02Experience+