Senior .NET Developer – Retail

Senior .NET Developer creating and evolving architectures for complex systems at DB in Brazil. Focusing on technical excellence, collaboration, and agile methodology.

Posted 7/23/2026full-timePorto Alegre • 🇧🇷 BrazilSeniorWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates expertise in designing and evolving microservices architecture, enforcing coding standards, and mentoring developers. Proficient in API security, performance diagnostics, and implementing CI/CD pipelines with a strong focus on quality assurance.

Highest-signal resume keywords

C# / .NET (6+)ASP.NET Core (Web API, Minimal APIs)Microservices ArchitectureAPI Security Knowledge (JWT, OAuth)CI/CD Pipelines (Git / Azure DevOps)

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Hard Skills

Entity Framework CoreRabbitMQSQL ServerCyclomatic Complexity AnalysisSOLID PrinciplesClean CodeIntegration TestingDesign PatternsRefactoring Legacy CodeEvent-Driven Architecture

Soft Skills

MentoringCode Review

Tools & Technologies

DockerKubernetesSonarQubeOpenTelemetryApplication InsightsOpenAPISwagger

Industry Keywords

E-CommerceVTEX PlatformMessaging PatternsData ProtectionPerformance Diagnostics

Tech Stack

Tools & technologies

ASP.NETAzureDockerEntity FrameworkKubernetes.NETRabbitMQSQL

About the role

Key responsibilities & impact

Design and evolve the architecture of new workflows and microservices;
Define and enforce coding, architecture and quality standards within the team;
Perform deep refactorings: decompose God Classes, reduce cyclomatic complexity, eliminate duplication;
Conduct code reviews with a focus on architecture, security and performance;
Mentor mid-level and junior developers in development best practices;
Define test strategies and ensure minimum coverage on critical flows;
Identify and remediate application-level security issues (authentication, validation, data protection);

Requirements

What you’ll need

C# / .NET (6+)
ASP.NET Core (Web API, Minimal APIs, middleware)
Entity Framework Core / Dapper
RabbitMQ (messaging patterns, dead-letter queues, retries)
SQL Server (data modeling, indexing, execution plans)
Messaging and event-driven architecture
Git / Azure DevOps CI/CD
Docker / Kubernetes (containerization and orchestration)
Strong experience in microservices architecture and event-driven systems
Experience analyzing cyclomatic complexity and refactoring legacy code
Experience with CI/CD pipelines integrating quality analysis and automated tests
Solid understanding of SOLID principles, Clean Code, DRY, KISS and YAGNI
API security knowledge: JWT, OAuth, IDOR prevention, mass-assignment protection, rate limiting, security headers
Experience with structured logging, telemetry and performance diagnostics in production
Ability to model relational databases for performance: indexing, projections, execution plans
Ability to evaluate and choose appropriate design patterns for each problem (Strategy vs Chain of Responsibility, CQRS vs read-model approaches, etc.)
It will be a plus if you have:
Knowledge of e-commerce
Experience with the VTEX platform
Integration microservices
SonarQube (static code analysis)
MediatR / CQRS (proper implementation, not just using the library)
Integration testing and test-pyramid-oriented coverage
Azure Blob Storage
OpenTelemetry / Application Insights
OpenAPI / Swagger (versioning and documentation)
GoF and architectural design patterns (Strategy, Chain of Responsibility, Adapter, Factory, etc.)

Benefits

Comp & perks

iFood voucher (meal allowance)
Work-from-home allowance
Health insurance
Dental plan
Birthday day off
Life insurance
Extended maternity and paternity leave
Educational partnerships
TotalPass partnership - health and wellness
Clude Saúde partnership
Reimbursement programs
Flexible hours
Dress code: be yourself.