Yago.

Experience

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  1. Jun 2026 — Present

    Software Engineer

    DAT Freight & Analytics

    • Ship features end to end on the broker-facing web app of a US freight brokerage platform: Node.js and TypeScript across the API and data layer, React on the UI
    • Own carrier onboarding, including the state logic that keeps status consistent as records move through the pipeline

  2. Feb 2025 — Jun 2026

    AI Software Engineer

    Clinicorp Solutions

    • Built the LLM side of the product in Node.js and TypeScript on OpenAI and Hugging Face models: RAG, agents and conversational features serving 30,000+ users
    • Wrote the conversation memory layer, which handles context-window limits by pulling back only the relevant prior turns instead of replaying the full history
    • Applied Thompson Sampling to choose between prompt and data variants under uncertainty, so the system learned from live traffic instead of offline guesswork
    • Owned model selection and prompt iteration against real usage, weighing output quality against cost and latency

  3. Feb 2023 — Feb 2025

    Senior Software Engineer

    LIVE Roupas Esportivas

    • Owned the exchanges and returns module as a core developer on the e-commerce platform
    • Traced 600,000+ failed OmniChat integrations back to the technical debt causing them; fixed the critical path in days, then redesigned the flow so it stopped overloading the database and cloud queues
    • Found a commission calculation bug where the financial rules and the code disagreed, leaking five figures in BRL a month; scoped the fix into its own project and shipped it
    • Introduced Scrumban with the coordinators, giving the team efficiency and quality metrics it had been missing

  4. Mar 2022 — Feb 2023

    Mid-Level Software Engineer

    Clinicorp Solutions

    • Led a data migration for 1,000+ enterprise clients with zero downtime, balancing cloud cost against performance
    • Refactored a high-throughput Node.js pipeline with compression, cutting the cost of processing large payloads
    • Built services on GCP across Cloud Functions, Dataflow, Datastore and Storage; one Cloud Function simplified route integration and fixed recurring ETA errors
    • Improved frontend performance on critical flows with React Context, useMemo and React.memo, part of a project credited with an estimated 10% lift in monthly revenue

  5. Jan 2021 — Mar 2022

    Junior Software Engineer

    Devhero Serviços Online

    • Built backend integrations in TypeScript and Node.js plus frontend features in React; ran code reviews and refactors

Education

Graduated Nov 2024

Bachelor's Degree in Software Engineering

Centro Universitário - Católica de Santa Catarina · Jaraguá do Sul, SC, Brazil

Certifications

  • EF SET English Certificate — C2 Proficient (78/100)
  • AWS Certified Developer
  • Data Structures and Algorithms2025
  • REDIS II: Structures and Resources2024
  • Go Programming Language2023
  • Node.js: Advanced Concepts2023
  • React.js & Next.js (Intermediate/Advanced)2023
  • Go in Action2022
  • Docker for Node.js Developers2022