Portfolio

Rafael
Teixeira

Support Engineer with 6+ years in SaaS, REST APIs, SQL, and tools like Kibana, Grafana, and Zendesk. Currently using AI tools to automate tasks and build web solutions.

Available for work
Florianopolis, Brazil
CURRENTLY
Software Developer · AI Solutions
@ Self-Employed
2025 — Present
FOCUS
SaaS SupportREST APIsSQLZendeskLog Analysis (Kibana/Grafana)Technical DocumentationReactNext.jsTypeScriptSupabaseAI Tools (Claude Code/Cursor)

Professional Summary

ABOUT

Support Engineer with 6+ years in SaaS, APIs, and SQL. I find root causes fast, simplify technical complexity for users, and currently build web solutions with AI tools.

CORE EXPERTISE

SaaS & REST API SupportSQL & Data TroubleshootingLog Analysis (Kibana/Grafana)Technical Documentation

GROWTH AREAS

Web development with React & Next.jsTypeScript & SupabaseAI tools (Claude Code, Cursor)Building developer focused solutions

Work Experience

Self-employed

Current Employer
  • Developing web applications and digital solutions for international clients.
  • Focus on Next.js, React, Vite, Supabase, and TypeScript.
  • SaaS dashboards, financial apps, and AI-driven features.
  • Next.js
  • React
  • TypeScript
  • Vite
  • Supabase
  • AI/ML

Involves

  • REST APIs
  • SQL
  • Kibana
  • Grafana
  • Firebase
  • Documentation

TIVIT

  • PostgreSQL
  • REST APIs
  • Log Analysis
  • Incident Management

Softplan

  • SQL
  • Oracle
  • DB2
  • SQL Server
  • Bug Reproduction

Modula Software

  • DB2
  • POS Systems
  • Retail Automation
  • Bug Reproduction

Featured Projects

API Documentation Starter

Documentation2025Live

Open source starter for modern API docs built with VitePress + Vue 3. Includes multilingual support (en/pt-BR/es/fr), interactive OpenAPI reference via Scalar, and production ready developer experience.

VitePressVue 3TypeScriptScalarVercel
View project

CS2 Analytics

Analytics Dashboard2025Live

Production ready analytics dashboard for Counter Strike 2 with GamersClub ingestion and a canonical data model; idempotent ETL with audit trail, responsive UI and rich charts.

Next.js 15ReactTypeScriptTailwind v4shadcn/uiPostgreSQLDrizzle ORMTanStack QueryRecharts

Farias Klug Advocacia

SPA2025Live

Multilingual law firm SPA supporting 4 locales (pt-BR, en, es, de). Built with React 18 + Vite 6, featuring lazy-loaded sections with Suspense, schema-validated forms (Zod), accessible Radix UI components, and polished Framer Motion transitions — all utility-styled with Tailwind CSS v4.

React 18TypeScript (strict)Vite 6Tailwind CSS v4Radix UI + shadcn/uiFramer Motionreact-hook-form + Zodi18nextVercel
View project

Band Financial Dashboard

Internal Tool2025In Development

Financial/admin system for bands: secure foundation (Postgres + RLS + pgsodium), idempotent REST API, document templates, and Google Calendar integration.

PostgreSQLRLSpgsodiumViteReactTailwindSupabase/NeonGoogle Calendar API

Key Achievements

CX Awards – Support Highlight Q3 2022

Customer Experience2022
  • First Reply SLA 95.6%
  • One touch Resolution 63.4%
  • Ticket Reopening Rate 3.94%.
Impact:
High SLA and customer satisfaction

CX Awards – Support Highlight Q4 2022

Customer Experience2022
  • First Reply SLA 96.4%
  • One touch Resolution 65.3%
  • Ticket Reopening Rate 2.14%.
Impact:
  • Improved SLA
  • Reduced reopen rate

API Documentation Redesign

Technical Leadership2024

Designed a documentation overhaul aimed at reducing support tickets by up to 90%. Included multilingual support, real examples, and developer focused content.

Impact:
Aimed at 90% reduction in API tickets

Education & Learning

Formal Education

BTech — Software Development

Universidade Cruzeiro do Sul
May 2025 — Nov 2027 (expected)Florianopolis, Brazil · RemoteIn progress

Foundations of software engineering, web development, databases and scripting.

LLB — Law

UNICESUSC
Jun 2015 — Dec 2018Florianopolis, BrazilIncomplete

6 semesters completed (not concluded).

Professional Certifications

EF SET English Certificate — 72/100 (C2 Proficient)

EF SET
2025Active

Reading & Listening — CEFR C2

Technical Support Fundamentals

Google
2025Active

Core IT support, troubleshooting and systems.

Sunshine Conversations for Developers

Zendesk
2023Active

Messaging APIs and developer tooling.

User Experience

FIAP
2021Active

UX fundamentals and product thinking.

Scrum Foundation Professional Certificate (SFPC)

CertiProf
2021Active

Agile principles and Scrum foundations.

DevOps & Agile Culture

FIAP
2021Active

DevOps mindset and agile practices.

Continuous Learning

Meta Full Stack Developer Specialization (10 courses)

Meta / Coursera
2025 — presentIn progress

Front end (React, HTML/CSS), back end (Python, Django), SQL, REST APIs, Git/GitHub, deployments.

Developer iOS Mobile & Back end Python

EBAC
2022 — 2023Completed

Swift, Python fundamentals and software engineering basics.

Let's Connect

Always interested in new opportunities, collaborations, and conversations about technology and design.

© 2026 Rafael Teixeira. All rights reserved.
Built with Next.js and Tailwind CSS