Sr. Backend Engineer

As a senior backend developer in the investment division, I build tools that optimize the
productivity of investment specialists by enhancing their CRM platform—where all investment
orders are processed and tracked. One key initiative I contributed to involved automatically
updating the status of investment orders based on money drawdown events, ensuring real-time
consistency and accuracy in the order lifecycle.
Key Responsibilities & Achievements:
● AI-Driven Feature Writing Agent: Led the development of an internal AI assistant
powered by OpenAI to automate feature specification writing (context, business needs,
BDD, test scenarios, DoD/DoR), accelerating delivery by ~30% and standardizing
documentation across teams.
● Event-Driven Architecture: Designed and deployed serverless microservices using AWS
Lambda and SNS/Kafka to trigger investment order updates based on money drawdown
events — ensuring near real-time status updates with higher consistency.
● API Development: Built and maintained high-performance REST APIs with .NET Core
and MySQL (AWS Aurora), supporting critical operations for investment order flows.
● API Gateway & Security: Implemented secure, scalable routing via AWS API Gateway,
enabling controlled service-to-service communication.
● Infrastructure as Code (IaC): Managed cloud infrastructure with Terraform, achieving
consistent multi-environment deployments and simplifying onboarding.
● CI/CD & Testing: Created and maintained automated pipelines in GitHub Actions, with
XUnit and SpecFlow tests covering key business scenarios and integration points —
improving deployment confidence and reducing regression issues.
● Cloud-Native Mindset: Focused on clean, scalable, and observable backend solutions,
aligned with cloud-native and DevSecOps best practices.

Worked on the development and maintenance of a CRM platform for AIHR, an international
provider of online HR courses. My role involved enhancing backend and frontend systems to
support business scalability, stability, and security.
Key Responsibilities & Achievements:
● Legacy System Maintenance: Provided support and implemented enhancements across
systems built with .NET Framework and .NET Core, ensuring continued reliability and
performance.
● Global Error Handling: Integrated Problem Details middleware into legacy APIs and
implemented HTTP interceptors in Angular to standardize client-side error management.
● Frontend Security Enhancements: Developed a custom session storage service in
Angular 14 to replace all browser storage mechanisms, increasing client-side security.
● Behavior-Driven Testing: Set up a complete integration testing solution using SpecFlow
with testing containers, enabling robust BDD-style validation of business flows.
● Cloud Deployment: Leveraged AWS Cloud services to support scalable deployment
pipelines and hosting environments.

Worked on both backend development and DevOps initiatives for PureCars, a U.S.-based
company in the automotive advertising sector. Supported legacy systems while leading
cloud-native infrastructure automation and CI/CD pipeline enhancements.
Key Responsibilities & Achievements:
● CI/CD Automation: Created and maintained YAML pipeline templates with deployment
stages and approval gates using Azure DevOps, improving deployment security and
consistency.
● Kubernetes Deployments: Authored Helm charts and Kubernetes manifests to deploy
services in cluster environments, increasing scalability and reliability.
● Test Automation: Automated backend and frontend unit tests in CI pipelines using XUnit
and Jest-JUnit, with reporting integrated into Azure Pipelines.
● Legacy System Support: Maintained and enhanced existing systems developed in both
.NET Framework and .NET Core.
● Feature Development: Contributed to the "Driver Project" by implementing new backend
features using .NET 7.
● Cloud Infrastructure: Leveraged Azure Cloud services for hosting, scalability, and
automation.

Contributed to the development and maintenance of the Dealer Invoice Portal (DIP), a
LATAM-wide solution for managing dealer invoices. Focused on backend development, CI/CD
automation, and container orchestration using modern cloud and DevOps practices.
Key Responsibilities & Achievements:
● Backend Development: Developed and maintained RESTful APIs using .NET Core 6,
applying a Test-Driven Development (TDD) approach to ensure code quality and
coverage.
● Event-Driven Architecture: Configured Azure Service Bus for reliable communication
with external systems and services.
● CI/CD Automation: Maintained and optimized Azure Pipelines for automated testing and
deployment workflows targeting Openshift 4.9 clusters.
● Containerization: Built and maintained Docker images to streamline deployment
processes and ensure environment consistency.
● Openshift Deployment: Created and configured new services using DeploymentConfigs
within Openshift for scalable and isolated microservices.

Worked on the backend development of a new CRM platform (Zendesk integration) within the
customer service division, in close collaboration with the architecture team and following the
Kanban methodology.
Key Responsibilities & Achievements:
● Backend API Development: Built microservices and RESTful/GRPC APIs using .NET
Core (C#) to support Zendesk integration and internal CRM systems.
● Automated Testing: Wrote unit tests using XUnit, integration tests using Postman, and
implemented BDD scenarios using SpecFlow to ensure functional coverage and system
reliability.
● Code Quality & CI/CD: Configured SonarQube in Azure Pipelines to maintain high
code quality standards across the team’s CI/CD processes.
● API Gateway Management: Created and maintained secure API routes via Azure API
Management, enabling scalable and controlled access to backend services.
● Collaboration & Process: Actively participated in sprint ceremonies and collaborated
with the architecture team to refine system design and technical decisions.

Participated in the development and maintenance of an educational management platform used
statewide to oversee students, teachers, and institutional services across the public education
network of Mato Grosso do Sul, Brazil.

with emphasis on web programming

with emphasis on programming -