Matheus Da Silva Rosa
Matheus Da Silva Rosa

Senior Software Engineer | .NET Specialist

Actively looking · Member since 30 Sep 2026
Location
São Paulo, Brazil
Desired salary
Unspecified
Work preference
Remote Only
Experience level
Senior

About

Professional summary

I am a Senior Software Engineer and .NET specialist with over four years of hands-on experience designing, building, and evolving scalable software systems.

I specialize in C#, .NET, cloud-native and event-driven architectures, with strong experience using AWS services such as DynamoDB, Lambda, SNS, SQS, EventBridge, Aurora, and CloudWatch.

I have delivered high-performance solutions for credit operations, messaging, batch processing, and wallet-closing workflows in distributed microservices environments. My work has improved scalability, resilience, processing speed, and cloud-cost efficiency.

I also have experience with SAP Business One integrations, legacy-system ownership, platform reverse engineering, and cloud migrations. In addition, I have built backend services with Java and Spring Boot for marketplace products.

I value ownership, problem-solving, clear communication, software architecture, and continuous improvement. I work effectively in Agile teams and apply practices such as Clean Architecture, SOLID, CQRS, unit testing, REST API development, and CI/CD.

Skills

35 capabilities

Tech stack & tools

Working toolkit

Application Hosting

Application Utilities

Development

Languages & Frameworks

Experience

Career history

Senior Software Engineer DQR Tech | Allocated at BTG Pactual – IT Credit

Designed and implemented a high-performance credit-operations retrieval pipeline using .NET, C#, AWS DynamoDB, Lambda, Aurora, and CloudWatch. Optimized DynamoDB indexing and partitioning, replacing costly scans with indexed queries and moving filtering from FilterExpression to KeyExpression, reducing RCU costs and processing time by 40–60x across large credit portfolios.

Refactored a legacy message-forwarding flow and created an independent batch-processing service that decoupled workloads from a core message orchestrator processing more than 80 million messages per day. Implemented asynchronous batch delivery with SNS, Lambda, DynamoDB Streams, and parallelism to reduce RateExceeded errors and improve resilience.

Built an asynchronous wallet-closing scheduling feature using EventBridge, Lambda, and DynamoDB. Distributed closing operations across configurable windows, prevented queue and DAX-cluster overloads, and added automated retries for validation failures.

Software Engineer ALFA ERP

Designed and implemented asset-registration and migration automation integrated with SAP Business One for Caixa Seguridade treasury operations. Improved data consistency, reduced manual work, and increased operational efficiency using .NET, C#, and the SAP B1 Service Layer.

Owned a legacy SAP Business One platform used by BTG Pactual's Energy division. Reverse-engineered undocumented workflows, documented deployment and runtime processes, and supported migration from a legacy cloud provider to AWS infrastructure using .NET, C#, SAP B1 UI API, and DI API.

Software Engineer Limpee

Led backend engineering for a service marketplace platform, designing and implementing the core architecture with Java 17 and Spring Boot. Developed business-critical workflows for real-time cleaning-service scheduling, provider ranking, quote approvals, notifications, PDF generation, and media and document handling.

Implemented JWT authentication with Spring Security, API documentation through Swagger/OpenAPI, and CI/CD automation using GitHub Actions and Jenkins. Supported scalable backend operations and cloud deployment.

Education

Learning history

São Paulo Tech School

Associate's degree, Systems Analysis and Development

Associate's degree in Systems Analysis and Development.

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