Santo André – SP, Brazil

Gabriel de Moura

Back-end Developer | T-SQL / SQL Server | Node.js | Integrations

Back-end developer with 5 years of experience in IT and a strong foundation in SQL Server/T-SQL: stored procedures, triggers, query tuning, and execution plan and locking analysis. I develop ERP modules and integrations with marketplaces, e-commerce platforms, and REST APIs, as well as applications with Node.js.

My previous background as an L2 support analyst is a differentiator: hands-on experience diagnosing production issues and performing root-cause analysis. Currently pursuing an Associate Degree in Systems Analysis and Development.

Professional Experience

  1. Mevo

    T-SQL Developer

    Oct/2026 – Present
    • Development and improvements of ERP modules using T-SQL (stored procedures, views, functions, triggers).
    • Development and maintenance of integrations between the ERP and external systems.
  2. Procfit

    Senior L2 Support Analyst

    Nov/2021 – Oct/2026Remote
    • Developed an internal monitoring system with Node.js (Express), MariaDB, and React that identifies recurring failures and anticipates problems before they impact client operations, reducing critical incidents by 85%.
    • Implemented proactive error detection routines based on application log analysis, anticipating 80% of monthly occurrences that previously reached the client as support tickets.
    • Stabilized and maintained integrations with marketplaces (iFood, FAPP, CR, Rappi) and e-commerce platforms (VTEX, WooCommerce, Magento), working alongside internal IT teams and client technical teams.
    • Optimized SQL queries (joins, indexes, execution plans) used to investigate and fix data inconsistencies in production environments.
    • Handled an average of 70 L2 tickets/month, performing root-cause diagnosis and documenting solutions to reduce recurrence.
    • Progressed internally from L1 Assistant to Senior Analyst, through Senior Assistant, Junior Analyst, and Mid-Level Analyst; also provided technical guidance to L1/L2 colleagues in triaging complex cases.
  3. Poupafarma

    Sales Assistant

    Nov/2019 – Oct/2021São Bernardo do Campo – SP
    • Served customers in a high-traffic store, translating technical medication information into clear guidance — the foundation for the non-technical user communication I later carried into technical support.
    • Organized operational routines for receiving goods, inventory control, and administrative support, with attention to process, prioritization, and record accuracy.

Skills

Languages & Frameworks

  • JavaScript
  • TypeScript
  • Node.js
  • Express
  • React
  • Next.js
  • C#
  • .NET
  • Dapper

Databases

  • T-SQL (SQL Server)
  • MySQL
  • MariaDB
  • PostgreSQL
  • Stored procedures
  • Triggers
  • DMVs
  • Lock and blocking analysis
  • Execution plans
  • Query tuning
  • Indexes
  • Data modeling

Integrations

  • REST APIs
  • System integration
  • External API consumption

Domain Knowledge

  • ERP
  • Brazilian tax documents (NF-e, SAT)
  • Brazilian tax reform (IBS/CBS)
  • SNGPC/ANVISA
  • PBM and pharmacy systems
  • Marketplace and e-commerce integrations

Tools & Practices

  • Git
  • Linux
  • Computer networks
  • Log analysis
  • System monitoring
  • Production incident diagnosis
  • Root-cause analysis

Languages

  • Portuguese (Native)
  • English – Upper Intermediate (B2)

Education

Universidade Presbiteriana Mackenzie

Associate Degree in Systems Analysis and Development (in progress)

Feb/2026 – Jun/2028São Paulo – SP

Courses & Certifications

curso.dev / Alura / Udemy

Technical Training in Back-end Development

  • Node.js with Express: building REST APIs, route organization, middlewares, and architecture best practices.
  • Applied SQL (MySQL and T-SQL): data modeling and queries focused on performance, joins, indexes, and data analysis.
  • Automated testing, CI/CD, version control with Git, Linux, and computer networks.

Featured Projects

  • SNGPC Validator

    Client-side validator for SNGPC (Brazilian ANVISA) XML transmission files: parses and validates everything locally in the browser (header, movement items, invoices, and prescriptions), pinpointing the reason for each error before a real transmission.

  • Internal Monitoring System – API

    REST API built with Node.js (Express) and MariaDB, with JWT authentication, to identify and proactively address integration failures for marketplaces and e-commerce platforms.

    • Node.js
    • Express
    • MariaDB
  • Internal Monitoring System – Frontend

    React interface that consumes the monitoring API: real-time status per client, 24-hour availability charts, hourly failure history, latency indicator, and critical service alerts.

  • Task Management API

    Robust REST API developed in .NET 8 using Dapper and SQL Server, applying the Repository Pattern for efficient task management and data persistence.