Curriculum vitae

Rômulo Fraga

Software Engineer

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Experience

VTEX

Brazil
  • Software Engineer L2 (Mid-level)Jul 2026 – Present
  • Software Engineer L1 (Junior)Apr 2024 – Jul 2026
  • Software AnalystDec 2022 – Apr 2024
  • Designed and delivered the Master Data billing and platform-credit wallet, including credit accrual, consumption, reversal, expiration, and invoice generation.
  • The first production billing cycle covered 2,358 companies, generated approximately $393K USD in net monthly revenue, and applied approximately $162K USD in platform credits.
  • Reconciled document usage, company, and invoice datasets to identify eligible accounts that were not billed and approximately $51K USD per month in additional potential net revenue for validation.
  • Owned end-to-end design and delivery of the VTEX Rise self-service account provisioning API, including technical discovery, RFC, API contracts, validation rules, rate limiting, rollout, and production validation.
  • Coordinated engineering teams to integrate registration and account-creation workflows into a fully digital customer onboarding flow.
  • Helped guide Master Data persistence workloads to Aurora PostgreSQL to improve data integrity, query flexibility, and scalability.
  • Added support for Brazil’s alphanumeric CNPJ format while preserving existing numeric identifiers, with check-digit validation and automated edge-case coverage.
  • Diagnosed cross-account authorization issues affecting PII accounts by tracing credential behavior across distributed services and coordinating a credential-based validation strategy.

Pagar.me

Brazil
  • Integration AnalystAug 2020 – Dec 2022
  • Guided external developers through REST API and SDK integrations across e-commerce, marketplace, and open-source platforms using C#, JavaScript, and PHP.
  • Translated customer requirements into API integration approaches for recurring billing, antifraud, receivables, ERP integrations, and payment processing.
  • Investigated integration and production failures through observability tools, functional testing, and request-level troubleshooting with customer engineering teams.

Education

Universidade Federal do Ceará

2015 – 2020

Bachelor’s Degree, Environmental and Sanitary Engineering

Descomplica

2021 – 2022

MBA, Business Intelligence

Descomplica

2021 – 2022

MBA, Strategic Project Management and Agile Methodologies

Escola DNC

2022 – 2023

Professional Product Management

Selected Projects

Master Data Billing and Platform-Credit Wallet

Delivered billing workflows for credit accrual, consumption, reversal, expiration, and invoice generation; analyzed production-cycle data to identify billing gaps and revenue opportunities.

VTEX Rise Self-Service Account Provisioning API

Designed and rolled out API contracts, validation, and rate limiting for a digital account onboarding flow, coordinating registration and account-creation integrations across teams.

Brazilian CNPJ Format Support

Added validation for Brazil’s new alphanumeric CNPJ format while maintaining compatibility with existing numeric identifiers.

Technologies

  • C#
  • SQL
  • JavaScript
  • Node.js
  • .NET
  • ASP.NET Core
  • REST APIs
  • Background Workers
  • Asynchronous Processing
  • Distributed Systems
  • Microservices
  • System Design
  • Domain-Driven Design
  • Clean Architecture
  • Design Patterns
  • Reliability
  • Scalability
  • AWS
  • Amazon SQS
  • Elastic Beanstalk
  • PostgreSQL
  • Amazon Redshift
  • Entity Framework Core
  • OpenSearch
  • Automated Testing
  • Code Reviews
  • CI/CD
  • Observability
  • Incident Response
  • Agile Development