Renan Rambul

Software Engineer

Products end to end, from the API to the pixel.

Currently at Translational Analytics & Statistics

Download CV

renanrambul.devv4.2.0

shipping

// latest

Shipped 250+ merged PRs building healthcare SaaS.
Shipped Fortuna, an AI co-pilot for personal finance.
Brought AI coding agents into my daily workflow.
Learning context engineering and MCP.

// aboutREADME.md

About Me

I'm a software engineer who has spent the last 6+ years shipping web products end to end. I work across the stack, from API design and data modeling to design systems and accessible UI, and the frontend is where I go deepest. These days I build healthcare SaaS with a U.S.-based team, owning features from the API to the pixel. I care about clean architecture, a good developer experience, and the small details that make a product feel right.

Personal

I love building things, learning in public, and contributing to open source. When I'm not coding, I'm probably reading or at the gym.

Technical

React, TypeScript, and Node.js across the stack, going deepest on design systems, accessibility, and performance.

Languages

Native Portuguese and advanced English. I've been working day-to-day with international teams for years.

// experience5 releases

Professional Experience

Software Engineer
Translational Analytics & StatisticsArizona, United States · Remote
shippingJan 2025 - Present
- Ship features end to end on a U.S. healthcare SaaS platform, from API endpoints and data-model changes to accessible UI and PDF reporting, across 250+ merged PRs.
- Build and maintain the web-component design system that multiple product teams ship on, with accessibility and performance treated as requirements, not nice-to-haves.
- Write Playwright integration tests that catch regressions before they reach a release.
- Publish shared npm packages that keep UI consistent across product teams, and review frontend PRs for architecture and fidelity to Figma designs.
- Improve the team's AI-assisted workflows, including a hierarchical knowledge base that keeps coding agents productive across the codebase.
TypeScriptWeb ComponentsNode.jsREST APIsPlaywrightAccessibilityAI WorkflowsStorybookFigma
Frontend Software Engineer
SkuedRemote
Aug 2024 - Feb 2025
- Built the landing pages and application UI for an ed-tech platform serving 1,000+ students, with pages that drove thousands of conversions.
- Streamlined student and admin workflows, removing manual steps from day-to-day operations.
- Established the frontend architecture around React, React Query, and React Hook Form so the codebase stays maintainable as the product grows.
- Worked directly with product stakeholders to turn business requirements into shippable, user-centered features.
React.jsAnt DesignReact QueryReact Hook FormStorybookCSSTypeScript
Software Engineer
ByMyCell - Genomics Made SimpleRibeirão Preto, São Paulo, Brazil · On-site
Sep 2024 - Jan 2025
- Built the React dashboards and reports that turn raw genomics lab results into something researchers can actually read.
- Connected frontend and backend systems to make lab workflows traceable end to end, with fewer manual handoffs and errors.
- Refactored 6+ legacy backend modules into a DDD architecture while keeping the old system running, without interrupting lab operations.
- Added the unit and integration test suites the codebase was missing.
React.jsTailwind CSSTypeScriptDDDJestExpress.jsDockerMySQL
Frontend Software Engineer
TakeRibeirão Preto, São Paulo, Brazil · On-site
Nov 2022 - Sep 2024
- Built the backoffice that runs a network of 1,000+ smart retail coolers: order management, inventory control, and live operational dashboards.
- Founding contributor to the internal design system, raising component reuse across teams and speeding up feature delivery.
- Introduced end-to-end testing with Cypress, catching bugs before deploys instead of after.
- Created accessible, interactive data visualizations for day-to-day operational decisions.
- Worked directly with a U.S. client, owning features from planning through deployment.
React.jsAngularAWS AmplifyMaterial UIReduxCypressRechartsStorybook
Full-stack Developer
Suave Comunicação e MarketingRibeirão Preto, São Paulo, Brazil · Hybrid
Jan 2019 - Nov 2022
- Shipped 10+ client websites and Next.js landing pages where load speed and conversion were the whole brief.
- Designed and built a multi-tenant link-aggregator platform (React + Express) serving multiple client brands from a single codebase.
- Developed custom site features that turned client websites into lead-generation channels.
- Ran SEO and performance work that lifted clients' organic visibility.
React.jsNext.jsExpress.jsMySQLSEOJavaScriptHTMLCSS

// skills

Skills

The tools I reach for, grouped by where they live in the stack.

Frontend

React

Next.js

TypeScript

JavaScript

Lit

Web Components

Tailwind CSS

CSS

HTML

Accessibility

Web Performance

AI & Agents

Coding Agents

Claude

Cursor

MCP

Context Engineering

Backend

Node.js

Express

REST APIs

PostgreSQL

MySQL

Firebase

Testing

Playwright

Vitest

Jest

Testing Library

Cypress

Axe

DevOps & Tools

Git

Docker

AWS

Vercel

Vite

Storybook

Figma

Linux

Years shipping for the web

250+

PRs merged at my current role

Community

Contributor to RPJS, the Ribeirão Preto JavaScript community.

// projects5 projects

Projects & Contributions

Products and open-source work I've built and contributed to

fortuna.up.railway.app

live

Fortuna

A personal finance app that brings spending, cards, parcelas, investments and goals into one calm place, with an AI co-pilot that reads your bank statements, flags surprises, and answers in plain language. Built for Brazil (BRL, CDI, parcelas) and fully bilingual.

AINext.jsNestJSPersonal FinanceTestingPWAi18n

Live Demo

rrambul/modular-game-store

live

Modular Game Store

A modern, high-performance micro-frontend e-commerce platform built with Rspack and Module Federation, demonstrating scalable frontend architecture for large distributed teams.

TypeScriptRspackModule FederationMicro-frontendsReact

Live Demo Source Code

rrambul/market-pulse

Market Pulse

A real-time financial market monitoring platform built with Lit, Lit Signals, Rspack, and Module Federation, designed to explore high-performance reactive UIs under streaming data loads.

TypeScriptLitLit SignalsRspackModule Federation

Source Code

animavita/animavita

Contribution739

Animavita

Trigger life-saving alerts, register animals for adoption and find the closest pet friend to adopt. An open-source project with 739+ stars and 318+ forks on GitHub.

TypeScriptReact NativeGraphQLMongoDBOpen Source

Source Code

rrambul/portifolio

live

Personal Portfolio

Modern, responsive portfolio website built with Next.js 16, featuring dark/light theme, internationalization (EN/PT), animated sections with Framer Motion, and a contact form.

Next.jsTypeScriptTailwind CSSFramer Motioni18n

Live Demo Source Code

// interests13 topics

Engineering Interests

What drives me

Design SystemsWeb Components ArchitectureSoftware ArchitectureDomain-Driven DesignFrontend Platform EngineeringDeveloper Experience (DX)Scalable UI PlatformsTesting Strategies for Large CodebasesWeb Performance OptimizationOpen-Source CollaborationAI-Assisted Development WorkflowsAgent-Ready CodebasesContext Engineering

// contact

Get in Touch

Have a question or want to work together? Feel free to reach out using the form below.

Renan Rambul

About Me

## Personal

## Technical

## Languages

Professional Experience

Software Engineer

Frontend Software Engineer

Software Engineer

Frontend Software Engineer

Full-stack Developer

Skills

Frontend

AI & Agents

Backend

Testing

DevOps & Tools

Community

Projects & Contributions

Fortuna

Modular Game Store

Market Pulse

Animavita

Personal Portfolio

Engineering Interests

Get in Touch

Personal

Technical

Languages