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Samuel Cunha

@samuelcunha

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Senior software engineer specializing in .NET microservices, cloud-native architectures, and performance.

Brazil

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What I'm looking for

I’m looking to build cloud-native, event-driven systems with .NET microservices—partnering on architecture, performance, and reliability. I want a team that values clean engineering practices, strong observability, and continuous improvement.

I’m a Senior Software Engineer with 11+ years of experience building scalable, high-performance systems using .NET and cloud-native architectures. I focus on performance, reliability, and continuous improvement across large-scale environments.

In recent roles, I’ve owned event-driven integrations and modernized backend services—building webhook pipelines with AWS SQS, maintaining .NET microservices, and supporting full-cycle feature delivery with Angular and TypeScript. I’ve also integrated and automated workflows, including WhatsApp chatbot integrations, while strengthening observability with Grafana dashboards.

I’ve led modernization and architecture decisions across multiple squads, improving scalability and cost efficiency (including migrating workloads from EC2 to ECS). I leverage AI tooling like Claude Code and Cursor to accelerate delivery cycles—automating code generation, reviews, and workflows—while maintaining engineering discipline with testing, clean architecture, and strong delivery practices.

Experience

Work history, roles, and key accomplishments

Current

Senior Software Engineer

Current

Vector Unitech

Apr 2025 - Present (1 year 2 months)

Designed and maintained event-driven integrations between third-party systems and SAP, including webhook pipelines with AWS SQS and background processing services. Built .NET microservices and supported frontend feature delivery with Angular and TypeScript, while improving observability with Grafana.

.NET C SQS Event Driven Integrations Webhooks SAP Microservices Angular TypeScript Grafana Observability Claude Code

Senior Backend Engineer

Wake Commerce

Mar 2024 - Apr 2025 (1 year 1 month)

Owned and maintained 10+ APIs in a large-scale e-commerce ecosystem, improving performance, scalability, and backend cost efficiency. Led modernization by migrating workloads from EC2 to ECS and implemented asynchronous integrations with Kafka and RabbitMQ.

API Development Performance Optimization Scalability EC2 ECS Kafka RabbitMQ Asynchronous Mentoring

Senior Backend Engineer / Tech Lead

AMcom

Oct 2022 - Feb 2024 (1 year 4 months)

Designed and developed .NET microservices and supported architectural decisions across multiple squads. Implemented observability with OpenTelemetry and Elastic Stack, automated deployments using Docker and Kubernetes/OpenShift, and integrated Kafka and SignalR for messaging and real-time communication.

Microservices Observability OpenTelemetry Docker Kubernetes OpenShift Azure DevOps Kafka SignalR Real Time Communications

Senior Backend Engineer

Wiz Soluções

May 2021 - Sep 2022 (1 year 4 months)

Modernized legacy systems by migrating services to .NET-based architectures and designed scalable APIs for the insurance sector. Implemented background processing with Hangfire, added monitoring via Application Insights, and built integrations with internal systems and Microsoft Teams.

.NET Legacy Modernization Hangfire Application Insights Background Processing Systems Microsoft Teams Systems Integrations

.NET Engineer

Smart Group Concepts

Apr 2017 - May 2021 (4 years 1 month)

Developed high-availability APIs and microservices and built CI/CD pipelines for containerized applications. Worked on AWS-based solutions (EC2, RDS, Elastic Beanstalk) and implemented integrations using RabbitMQ and blockchain-related services.

.NET High Availability Microservices CI CD Pipelines Docker AWS EC2 AWS RDS AWS Elastic Beanstalk RabbitMQ

.NET Developer

Early Career Experience

Jan 2014 - Jan 2017 (3 years)

Developed web and desktop systems using ASP.NET MVC and Web API, working across SQL Server, MySQL, and Oracle databases. Participated in system modernization and architecture migrations.

ASP.NET MVC Web APIs SQL Server MySQL Oracle Web Development System Modernization