Duarte Ribeiro
About MeSkillsExperienceProjects
Available to Work

Duarte Ribeiro

A Full Stack Developer with extra love for anything Backend and DevOps

hello@duarteribeiro.comSetúbal, Portugal

About Me

Full Stack Developer with a strong focus on Back-end and DevOps, bringing 9 years of programming experience across both academic and professional environments. Proven experience in developing web applications, APIs, real-time systems, and bots, as well as managing cloud infrastructure and dedicated servers. Experienced in building applications at millions-of-users scale, including process automation, AI-powered moderation, and payment integrations. Comfortable working remote, with high technical autonomy and a strong focus on simple, scalable, and long-term sustainable solutions.

Skills

Programming Languages

TypeScript

JavaScript

Python

SQL

Frontend & UI

React

Next.js

Tailwind CSS

shadcn/ui

Backend & Runtime

Express

Hono

Bun

WebSockets

OAuth 2.0

Databases & Storage

PostgreSQL

MySQL

MongoDB

SQLite

Cloudflare D1

ClickHouse

Cloud, Infrastructure & DevOps

Cloudflare Workers

Cloudflare Pages

Docker

CI/CD

Git

Monitoring

Backups

Analytics, Observability & Integrations

Stripe

PostHog

Sentry

Grafana

Langfuse

Experience

Full Stack Developer → Back-end / DevOps
Momentum One

Lisbon, Remote

August 2021 – December 2025

  • Development of web applications and backend services in TypeScript (Bun, Node.js, Hono, Express, Next.js), including REST APIs and real-time systems with WebSockets.
  • Creation of automation and moderation applications for Discord and Telegram.
  • Integration with Cloudflare services (Workers, Pages, D1) and database management (SQLite, PostgreSQL, MongoDB, among others), including modeling and migrations.
  • Implementation and operation of blockchain systems, including nodes and validators.
  • Development and integration of Artificial Intelligence based solutions.
  • Participation in architecture and scalability decisions, in direct collaboration with technical leadership.
https://momentum-one.io
Intern → Cluster IT Coordinator
Hotel Intercontinental Lisbon / Estoril

Lisbon / Estoril

March 2018 – September 2018

  • Provision of technical support to users.
  • Configuration, installation, and maintenance of workstations (hardware and software).
  • Administration and maintenance of servers and internal services.
  • Management and maintenance of network infrastructure (LAN, Wi-Fi, switches, routers).
  • Diagnosis and resolution of technical incidents, ensuring system continuity.
https://www.iclisbonhotel.com

Projects

Sledgehammer App
Security and moderation application used by 19,000+ communities and 35+ million users.
  • Development and maintenance of the application's backend, ensuring high reliability and efficiency.
  • Creation and management of scalable APIs, capable of handling high volumes of traffic.
  • Implementation of real-time systems for detection and immediate response to moderation events.
  • Development of automation systems for preventive and corrective actions (e.g., blocks, alerts, and abuse mitigation).
  • Continuous optimization of performance and scalability, supporting millions of active users.
https://sledgehammer.app