// Hello, world!

I'm Ramon
Seugling

Software Engineer shipping high-traffic features at Mercado Libre — Latin America's largest e-commerce platform (400M+ monthly users). Full-stack JavaScript: React, TypeScript and micro-frontend architectures on the client, Node.js and Express on the server. Focused on code quality, user experience, and measurable impact.

Ramon.tsx
1// Software Engineer
2import { Engineer } from './universe'
3
4export const Ramon = () => (
5 <Engineer
6 name="Ramon Seugling"
7 role="Software Engineer"
8 stack={["TypeScript", "React", "Node"]}
9 impact="GMV +6.5% 🇧🇷"
10 />
11)
Ramon Seugling
Ramon Seugling
Software Engineer
Experience6+ years
LocationFlorianópolis, Brazil 🇧🇷
LanguagesEN · PT · ES
DegreeB.Sc. Information Systems
Click to flip
6+
Years experience
400M+
Impacted users
9M+
Daily API calls saved
// 01. experience

Where I've worked

Software Engineer
Mercado Libre — Florianópolis, Brazil (Hybrid)
Oct 2024 – Present · 1 yr 8 mos
Current role
  • Led frontend development of the Supermarket Store Selector — drove +6.5% Gross Merchandise Value (GMV) / +1.2% new buyers in Brazil and +12.3% GMV / +14.3% new buyers in Mexico in Mercado Libre's supermarket vertical, one of LATAM's highest-traffic e-commerce surfaces.
  • Eliminated 9M+ unnecessary daily API requests through frontend optimization, reducing infrastructure costs and alert noise.
  • Built the Cart Awareness feature contributing to +0.94% Net Merchandise Value (NMV) / +2.03% new buyers in Chile and +0.93% NMV / +0.73% new buyers in Mexico.
  • Built Datadog dashboards and monitors that reduced critical incident detection time by ~60% — adopted into the team's on-call workflow.
  • Shipped features across 12+ frontend projects spanning micro-frontends, design systems, and shared UI libraries; operate AI-augmented workflows daily (Cursor, Claude, Codex) as a core part of delivery.
  • Mentor junior engineers through pair programming and PR reviews; lead internal tech talks and frontend knowledge-sharing sessions.
ReactTypeScriptNext.jsNode.jsBFFsMicro-frontendsServer-Driven UISSRLernaJenkinsPlaywrightDatadogNew RelicCursor / Claude / Codex
Software Engineer
BRy Technology — Florianópolis, Brazil
Sep 2020 – Sep 2024 · 4 yrs
  • Easy Sign: Frontend lead on a new electronic-signature REST API product. Built React/Next.js/TypeScript interfaces with Material UI and an iframe integration for client embedding; reduced PDF document loading time by ~45% for high-volume signature flows.
  • BRy Signer: Full-stack engineer on a white-label e-signature platform. Migrated scheduled jobs from node-cron to Kubernetes CronJobs (improved observability + automated alerting); integrated third-party WhatsApp API for signature-flow notifications.
  • Digital Certificate Issuing: Frontend lead on flagship product issuing 100K+ certificates/month. Implemented biometric validation (face-api.js, fingerprint scanners) and embedded Jitsi Meet video conferencing for Brazilian PKI compliance. Spearheaded MVP from concept to production with Docker, Kubernetes, and GitLab CI.
ReactTypeScriptNext.jsNode.jsExpressMobXMaterial UIAnt DesignJestReact Testing LibraryPlaywrightDockerKubernetesGitLab CI/CDPostgreSQLPHPLaravel
Software Engineer Intern
FEESC — Santa Catarina State Telemedicine System, Florianópolis, Brazil
Apr 2019 – May 2020 · 1 yr 1 mo
  • Contributed to one of Latin America's largest public telemedicine platforms — serving 300+ municipalities with tele-education, teleconsultation, second opinion, and telediagnosis services. Delivered features and bug fixes across web systems.
JavaScriptPHPjQueryPostgreSQLZend Framework
// 02. projects

Things I've built

Rememberly screenshot
Rememberly
Next.jsTypeScriptPostgreSQLResendCron jobsAxiomVercel
Full-stack app for tracking annual dates (birthdays, anniversaries) with automated email reminders and group sharing. Daily cron job dispatches emails on or before each date; Google OAuth + email OTP authentication.
Portfolio screenshot
Portfolio
Next.jsTypeScriptVercel
Personal portfolio built from scratch with Next.js and TypeScript — no UI libraries, no templates. Custom components, responsive layout, and smooth animations.
// 03. tech stack

Tools of the trade

Frontend
React
TypeScript
Next.js
JavaScript
Styled Components
Material UI
Ant Design
MobX
Context API
HTML5 / CSS3
Backend
Node.js
Express
REST APIs
PostgreSQL
MySQL
MongoDB
Redis
Testing
Jest
React Testing Library
Cucumber
Playwright
Infra & Cloud
Docker
Kubernetes
AWS (S3, EC2, Lambda)
GitLab CI/CD
Jenkins
Datadog
New Relic
Grafana
Kibana
AI
Cursor
Claude
Claude Code
Codex
MCPs
Claude Skills
Claude Plugins
n8n
Tools
Micro-frontends
Jira / Scrum
Git
// 04. education

Education & certifications

UFSC
B.Sc. in Information Systems
Federal University of Santa Catarina (UFSC) — Florianópolis, Brazil
2018 – 2023
AWS Academy Cloud Foundations
AWS Academy Cloud Foundations
Amazon Web Services
Ignite ReactJS
Ignite ReactJS
Rocketseat — Brazilian dev school
Ignite Node.js
Ignite Node.js
Rocketseat — Brazilian dev school

Let's connect.

Always happy to talk frontend engineering, system design, or anything tech-adjacent. Drop me a line.