Lucas Borges da Silva

Back-end Developer | Ruby on Rails | PHP

São Lourenço do Sul, RS, Brazil • lucas18sborges@gmail.com • github.com/Lusqinha • linkedin.com/in/lucas-borges-da-silva-rs

Professional Summary

Back-end Developer with experience in Ruby on Rails and PHP/Laravel, working on the development of ERP systems, REST APIs, e-commerce platforms and financial modules. Track record of delivery on foreign trade (COMEX), CRM and billing projects in production environments. Solid knowledge of PostgreSQL, MySQL, Redis, Sidekiq and test-driven development with RSpec and TDD.

Technical Skills

Ruby
Ruby on Rails
PHP
Laravel
PostgreSQL
MySQL
Redis
Sidekiq
RSpec
TDD
REST APIs
MVC Architecture
ActiveRecord
Git
GitHub
Claude Code
LLMs
AI Agents
AI-First Development

Professional Experience

Zimobi | Full Stack Developer

September 2026 – Present • Remote

Maintain and evolve the platform, fixing bugs and handling customer support tickets in production, ensuring stability and fast incident response.
Contribute to the development of new features, focused on WhatsApp chatbot functionality.
Maintain and build integrations with third-party systems (ERP/CRM) and internal tools that extend and automate customer communication flows.

Mainô | Back-end Developer

February 2025 – June 2026 • Remote

Developed integrations with external APIs for the COMEX (foreign trade) module, connecting the ERP to customs systems and logistics partners via REST.
Implemented and maintained an internal billing and financial management system, covering the invoicing flow, delinquency control and automated dunning workflows.
Developed CRM module features and refactored legacy code with SQL query optimization, reducing technical debt.
Adopted an AI-first workflow with Claude Code and supported the development of AI agents and internal automations integrated with the ERP, accelerating delivery and reducing manual work.

Prática Certificação Digital LTDA | Customer Support Agent

September 2023 – August 2024 • Pelotas, RS

Provided specialized technical support for the issuance and renewal of A1 and A3 digital certificates, serving both individual and corporate customers.
Troubleshot technical issues related to public key infrastructure (PKI) and certificate configuration across operating systems and browsers.

Projects

D’ultimahora | Ticket Resale Marketplace

December 2024 – Present • São Lourenço do Sul, RS

Co-founded and lead the development of a ticket resale marketplace built with Ruby on Rails, connecting sellers and buyers on a peer-to-peer platform.
Designed and implemented the system architecture, including listing management, transaction flow and user control.
Integrated an LLM into the listing publication flow for automated content moderation and fraud screening, flagging suspicious listings before manual review.

Education

PUC-RS | Associate Degree in Systems Analysis and Development

October 2023 – June 2026

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