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Mateando
2 followers · 2 following
  • Brazil

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Achievements

Achievement: Pull Sharkx3Achievement: YOLOAchievement: Quickdraw

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Dolanss/README.md

Gabriel Oliveira

Backend Engineer • Financial Systems • Java • GCP

Building scalable financial platforms, fiscal automation systems and backend architectures focused on performance, security and business impact.

About Me

  • Strong experience with Java, Spring Boot, GCP and scalable backend architectures
  • Background in Economics and Systems Analysis & Development, connecting business strategy with technical execution
  • Experience with ROI-driven engineering, cost optimization and high-reliability systems

Professional Focus

  • Backend Architecture
  • Financial Platforms
  • Fiscal & Tax Systems
  • Cloud-native Applications
  • Data Security & Compliance
  • Performance Optimization
  • Scalable Enterprise Software

Core Stack

Backend

  • Java • Spring Boot • Spring Security • JPA/Hibernate • REST APIs • JWT • TypeScript / Node.js

Frontend

  • React • Vue.js

Cloud & Infrastructure

  • GCP (BigQuery • Cloud Run • Dataflow) • Docker • Kubernetes • CI/CD

Databases

  • PostgreSQL • SQL Server • MongoDB • Redis

Specialties

  • Billing Platforms • SEFAZ SOAP Integrations • Tax Reform (IBS/CBS) • Data Architecture • Financial Benchmarking

Technologies I Use Daily

java spring react vue gcp postgres redis docker kubernetes

Pinned Loading

  1. camel-spring-boot camel-spring-boot Public

    Forked from apache/camel-spring-boot

    Runs Camel on Spring Boot and provides starters for Camel components

    Java

  2. Event-driven_billing Event-driven_billing Public

    Event-driven billing webhook processor in Java 17 + Spring Boot 3. Processes payment events with idempotency, async queue, invoice state machine, retry with exponential backoff, audit log, Flyway/P…

    Java 1 1

  3. K-Anonymization_BFF_Pattern K-Anonymization_BFF_Pattern Public

    Privacy-first financial benchmarking platform · Two-layer BFF: Layer 1 applies k-anonymization (k≥5) by clustering and persists to a segregated DB; Layer 2 consumes only anonymized data and serves …

    Java 1

  4. resilience4j resilience4j Public

    Forked from resilience4j/resilience4j

    Resilience4j is a fault tolerance library designed for Java8 and functional programming

    Java

  5. EFD_PARSER EFD_PARSER Public

    Parser de arquivos SPED EFD Fiscal que lê o arquivo texto linha por linha, identifica registros (C100, C170, E110) e gera um resumo de apuração de ICMS.

    Java 1

  6. CRYPTO_TAX CRYPTO_TAX Public

    a crypto capital gains calculator in Java 17 + Spring Boot 3 with FIFO cost basis, REST API, async processing, and 15 passing unit tests.

    Java