Senior .NET Engineer

Summary

Join Ubiminds, a GPTW-certified company, and contribute to the modernization of a monolith to microservices for two American software product companies. As a Senior .NET Engineer, you will focus on iterative refactoring, containerization, and deployment of ASP.NET Core services. You will work with ASP.NET Core Web API and MVC/Razor Pages, replace synchronous HTTP calls with asynchronous event emissions, create and maintain Docker files, and collaborate in setting up CI/CD pipelines. You will also participate in code reviews, unit/integration testing, and troubleshooting issues in non-prod EKS clusters. This is a remote-first position offering various benefits and growth opportunities.

Requirements

• Advanced/fluent English skills – Excellent written and verbal communication skills
• Proficiency with ASP.NET Core development experience on .NET 6 or higher
• Solid understanding of Web API and MVC project patterns; experience with light-weight ORMs is a plus
• Practical experience with Docker and container orchestration
• Familiarity with refactoring large codebases for microservice architectures

Responsibilities

• Service Development & Refactoring
• Work with ASP.NET Core Web API and MVC/Razor Pages projects to extract, refactor, and consolidate services along domain boundaries
• Replace synchronous HTTP calls with asynchronous event emissions to Event Bridge where appropriate
• Containerization & CI/CD
• Create and maintain Docker files; build and deploy services to local Docker Desktop/WSL2 for validation
• Collaborate in setting up GitHub Actions (or equivalent) pipelines for automated build, test, and deployment to EKS
• Collaboration & Quality Assurance
• Participate in code reviews, unit/integration test development (MSTest/Moq), and cross-team design workshops
• Troubleshoot issues in non-prod EKS clusters, ensuring services communicate correctly with RDS, Redis, and other dependencies

Preferred Qualifications

• Prior work on event-driven or message-based systems using AWS Event Bridge, SQS, or similar
• Exposure to Kubernetes (EKS), Helm/ArgoCD, and AWS managed services (RDS, ElastiCache, or Redis)
• Experience with cloud security and secrets management (AWS Secrets Manager, External Secrets Operator)

Benefits

• Are placed in a product-based company, with the same treatment as their full-time employees
• Have our full back-office support, from career guidance to HR and concierge services
• Enjoy our remote-first policy – we are a distributed team, after all
• Get your own MacBook (none of that "bring your own device" stuff here)
• Have access to growth opportunities with other amazing technology professionals, through tech talks, chapter meetings, and even remote happy hours for tons of fun!
• Improve your English through free lessons with a native English speaker - get to the next level on your communication skills!
• Candidate Referral bonus (promote Ubi to your tech friends, and get paid for it!)
• Miss working in the office? Our cool Florianópolis headquarters is available whenever you want, with weekly quick massages & tasty snacks, soft drinks, and games