fworks.tech
Official portfolio and full-stack showcase on Next.js — reference for stack and case studies.
Next.js · TypeScript · Tailwind
Visit fworks.tech →Joinville, Brazil · remote
Senior Full Stack Engineer — I design and ship scalable web products with TypeScript, GraphQL integrations, and a focus on performance, observability, and WCAG 2.1 AA.
End-to-end full-stack engineering
Full-stack engineer with experience in high-traffic products, complex integrations, and federated architectures. I work from GraphQL subgraph design and OpenAPI contracts to performant, accessible React interfaces.
I value clean code, observability (New Relic, CloudWatch), and foundations that evolve safely — automated testing, CI/CD, and WCAG 2.1 AA compliance are part of my daily practice.
Technologies and practices
Professional journey
Recent roles below; earlier positions (SoftExpert, TOTVS) at the end. Full history on LinkedIn and résumé.
Dec 2025 — present
BairesDev · remote (US)
Designed and implemented GraphQL subgraphs for telecom integrations in a federated architecture. OpenAPI/WSDL analysis, resolvers, CI, schema validation, and New Relic instrumentation in production.
Jan 2025 — Sep 2025
BairesDev · remote (US)
React libraries with Storybook, Jest and Playwright tests, Redux Toolkit, and Core Web Vitals optimization (code splitting, lazy loading, memoization). Mobile-first UIs with Tailwind, MUI, and Styled Components, with strong a11y focus.
Jan 2023 — Apr 2024
Present Technologies · remote (Portugal)
High-performance front end for a European e-commerce platform. Market data product rebuild and AI assistant for digital workflows. Testing with Jest, Enzyme, and Puppeteer; optimization with Lighthouse and React DevTools.
Aug 2021 — Sep 2022
DBC Company · Brazil
Eight months leading front end: React architecture, Chart.js dashboards, WCAG compliance, and A/B testing to improve user experience.
Jul 2020 — Aug 2021
Gofind · Brazil
Store management platform and geolocation app; GitLab pipelines, code splitting, Context API, Zod validation, and i18n.
Jun 2019 — Jul 2020
SoftExpert · Brazil
Enterprise web UIs with React and legacy stacks; component libraries, performance tuning, and cross-team delivery in a regulated software context.
2016 — 2019
TOTVS · Brazil
Progression from intern to R&D: automated tests, API and product quality, and front-end prototypes for internal platforms.
Academic background
Apr 2025 — Apr 2027
Jan 2018 — Dec 2021
Work and demos
Official portfolio and full-stack showcase on Next.js — reference for stack and case studies.
Next.js · TypeScript · Tailwind
Visit fworks.tech →GenAI demo with RAG and Streamlit to cross-check candidate documents in hiring workflows.
Python · Streamlit · RAG
Open demo →Interactive Streamlit notebook for exploring crypto market data and lightweight analysis workflows.
Python · Streamlit · Jupyter
Open demo →This site — bilingual personal portfolio (PT/EN) with App Router, i18n, and E2E tests. Source on GitHub.
Next.js 16 · Vitest · Playwright
Visit site →Let's talk
Open to remote opportunities, consulting, and teams that care about technical quality. Send context, stack, and timelines on LinkedIn.