Projects

Projects

A selected set of projects from my CV, focused on measurable impact, technical decisions, and delivery outcomes.

Russio's Blog

Period: 2026 - Present

Role: Creator & Builder

My personal publishing platform for practical writing on engineering, leadership, and systems thinking. It also works as a living lab for content and UX iterations.

Impact

  • Built a bilingual Hugo setup with custom layouts and structured content collections.
  • Uses the site itself as a controlled environment for copy and design experiments.
Hugo CSS Markdown Docker

CSN Portal NGT

Period: 2021 - 2024

Role: Tech Lead

Modernization of a critical enterprise portal from a legacy monolith to a microservices architecture.

Impact

  • Deployment time reduced from 3 hours to 12 minutes.
  • Supported faster releases with lower operational friction between teams.
  • Contributed to incident and MTTR reduction through architecture and operational standards.
Node.js Go Microservices CI/CD

Agrogalaxy B2B E-commerce

Period: 2021 - 2024

Role: Tech Lead

B2B commerce platform built for real operational complexity, including mobile integrations and business-critical flows.

Impact

  • Processed $500k+ GMV in the first 6 months.
  • Reached $2M+ annualized impact as the platform scaled.
  • Delivered from concept to production in 6 months.
Python Node.js React APIs

MegaImagem Scheduling Portal

Period: 2020 - 2021

Role: Full Stack Developer

Enterprise scheduling portal designed to improve service operations and user throughput.

Impact

  • Handled 10k+ daily users.
  • Improved scheduling efficiency by 35%.
  • Delivered under consulting constraints with fixed deadlines.
.NET React SQL Server

Bandeirantes AP Automation

Period: 2020 - 2021

Role: Full Stack Developer

Accounts payable automation system built to reduce manual finance operations in a large enterprise context.

Impact

  • Automated 80% of manual reconciliation.
  • Saved approximately 15 hours per week per user.
  • Integrated with existing enterprise financial workflows.
ASP.NET Angular APIs

iZiMarketplace

Period: 2019 - 2020

Role: Full Stack Developer (Mid-level)

Fintech and commerce platform built with service-oriented architecture for reliability and multi-market expansion.

Impact

  • Improved test coverage from 20% to 68% through TDD practices.
  • Supported 500k+ daily transactions with MongoDB in production.
  • Helped launch products in Brazil, Portugal, and Germany.
Node.js Go Laravel MongoDB TDD

DestinoPortugal Platform Rebuild

Period: 2016 - 2017

Role: Full Stack Developer

Complete rewrite of a tourism portal from WordPress to Laravel, including booking and e-commerce capabilities.

Impact

  • Mobile Lighthouse performance improved from 45 to 88.
  • Desktop Lighthouse performance improved from 85 to 92.
  • Technical SEO work supported a 150% increase in organic traffic.
Laravel PHP WordPress Stripe SEO

DeezTech

Period: 2020 - 2023

Role: Co-founder & Developer

Agency I co-founded to deliver websites and e-commerce projects for SMBs with strong post-launch maintainability.

Impact

  • Delivered 15+ projects across websites, e-commerce, and landing pages.
  • Reached 90% client retention.
  • Improved Core Web Vitals by an average of 48% across client projects.
WordPress PHP WooCommerce SEO