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Gabriela CarnielPortuguês

Gabriela Carniel

Fullstack Engineer · Santa Cruz do Sul, Brazil

I build web products end to end with TypeScript, from the front end in React and Next.js to the back end in Node.js, Fastify and PostgreSQL. I've worked on SaaS platforms, dashboards, integrations and visual editors.

Experience

  1. Fullstack Developer · Varos

    Nov 2025 – Present
    • Built the platform's financial advisory area: for advisors, a client portfolio with activities, notes, recurring tasks and a meeting calendar synced with Calendly; for management, full financial client profiles and contracts. Integrated the advisory area with Clint (CRM) to track clients, advisors and meetings, and automated the contract-signing flow from Clint to D4Sign.
    • Created the advisory billing system: daily automated collection of clients' assets through financial institutions' APIs, monthly fee calculation by contract type (fixed fee, monthly minimum, family group), month-end closing and a revenue dashboard.
    • For sales, built the sales funnel: lead scoring and automatic distribution to advisors, campaign management, and conversion and sales-cycle metrics, with data integrated from Meta Ads, ActiveCampaign, Calendly and Clint.
    • Next.js
    • TypeScript
    • Prisma
    • Drizzle
    • PostgreSQL

  2. Mid-level Fullstack Developer · Sellflux

    May 2024 – Jun 2025
    • Led the drag-and-drop page builder project, one of the main parts of the platform: built it from scratch, then led the team responsible for improving and maintaining it.
    • Set coding standards and best practices for the team, reviewed code and owned deployments.
    • Built a Figma plugin that converts layouts into editor components, to speed up template creation.
    • Also worked on other parts of the system, with Express, PostgreSQL and Redux.
    • React
    • Craft.js
    • Tiptap
    • Material UI
    • Redux
    • Express
    • PostgreSQL
    • Docker

  3. Junior Front-end Developer · ITZA Tech

    Sep 2023 – May 2024
    • Built and maintained high-conversion, high-performance e-commerce storefronts on deco.cx, most notably Lojas Torra, focused on Core Web Vitals, SEO and accessibility.
    • deco.cx
    • Deno
    • Fresh
    • Preact
    • Tailwind CSS
    • TypeScript

Selected work

About

I like the part of the job where product and engineering meet: deciding what not to build, finding the simplest model that holds up, and making the result feel fast.

I work best close to the product and the team: understanding the problem with the people who have it, breaking work into small deliveries, and taking care of what goes to production, with code review, shared standards and a reliable deploy.

I use AI coding agents every day, with safety and control: the architecture and the specs are mine, I review everything that ships, and nothing goes to production without passing through me.

Contact