Full Stack Engineer
Job Description
About Ubiminds
Ubiminds is a GPTW-certified, people-first company that partners with American software product companies to scale their development footprint. Ubi custom-curates Brazilâs top 5% talent to support LATAM strategies through a unique combination of staff augmentation and employer-of-record services.
We are assisting a U.S.-based company in expanding its engineering team with a highly skilled Full-Stack Engineer passionate about building scalable, performant, and maintainable systems using clean architecture and cloud-native practices.
What Youâll Do
- Break down large or complex problems into smaller parts, design clean solutions, and implement the core framework.
- Build and maintain RESTful APIs and backend services using C#, .NET Core, Entity Framework, and Web API.
- Apply software architecture patterns like Domain-Driven Design (DDD) and CQRS to build modular and scalable systems.
- Work directly with SQL Serverâdesigning databases, writing stored procedures, optimizing queries, and tuning performance.
- Use Entity Framework (EF Core or EF6) for ORM and data access.
- Write clean, testable, and maintainable code with proper documentation.
- Take full ownership of testing your own codeâunit, integration, and performance testingâas part of a Shift Left / No QA team setup.
- Collaborate with product managers and other teams to understand requirements and deliver customer-focused features.
- Use AI development tools (required)âincluding GitHub Copilot, Claude, or similarâto assist with code generation, refactoring, documentation, and development speed.
Cloud & AWS
Deploy and manage applications using AWS EC2, S3, Lambda, and related services.
Implement event-driven architectures with SNS/SQS.
Configure API Gateway, IAM, and monitoring via CloudWatch.
Ensure scalability, security, and cloud best practices.
What You Should Bring
- 5+ years of experience in enterprise or SaaS software development.
- Strong hands-on experience with:
C#, .NET Core, Web API
Entity Framework (EF Core or EF6)
Angular or other frontend frameworks.
SQL Server â writing queries, stored procedures, indexing, and performance tuning
- Solid understanding of object-oriented programming, design patterns, and enterprise architecture.
- Experience with DDD, CQRS, and clean layering of business logic and data access.
- Experience with AWS
- Familiarity with multi-threading, asynchronous programming, and system performance tuning.
- Experience with modern DevOps tooling, CI/CD pipelines, and Docker.
- Strong debugging and troubleshooting skills.
- Excellent communication skills (written and verbal) in English.
- Experience working across multiple teams or squads.
- Exposure to event-driven architecture or messaging patterns.
- Knowledge of Microservices Architecture.
- Required: Active daily use of AI development tools like GitHub Copilot, Claude, or similar in your workflow.
Perks @Ubiminds
Work with U.S.-based product teams.
Remote-first culture + MacBook provided.
English lessons, tech talks, referral bonus, and learning initiatives.
Full back-office support: HR, career guidance, and admin services.
About Ubiminds
Ubiminds is a GPTW-certified, people-first company that partners with American software product companies to scale their development footprint. Ubi custom-curates Brazilâs top 5% talent to support LATAM strategies through a unique combination of staff augmentation and employer-of-record services.
We are assisting a U.S.-based company in expanding its engineering team with a highly skilled Full-Stack Engineer passionate about building scalable, performant, and maintainable systems using clean architecture and cloud-native practices.
What Youâll Do
- Break down large or complex problems into smaller parts, design clean solutions, and implement the core framework.
- Build and maintain RESTful APIs and backend services using C#, .NET Core, Entity Framework, and Web API.
- Apply software architecture patterns like Domain-Driven Design (DDD) and CQRS to build modular and scalable systems.
- Work directly with SQL Serverâdesigning databases, writing stored procedures, optimizing queries, and tuning performance.
- Use Entity Framework (EF Core or EF6) for ORM and data access.
- Write clean, testable, and maintainable code with proper documentation.
- Take full ownership of testing your own codeâunit, integration, and performance testingâas part of a Shift Left / No QA team setup.
- Collaborate with product managers and other teams to understand requirements and deliver customer-focused features.
- Use AI development tools (required)âincluding GitHub Copilot, Claude, or similarâto assist with code generation, refactoring, documentation, and development speed.
Cloud & AWS
Deploy and manage applications using AWS EC2, S3, Lambda, and related services.
Implement event-driven architectures with SNS/SQS.
Configure API Gateway, IAM, and monitoring via CloudWatch.
Ensure scalability, security, and cloud best practices.
What You Should Bring
- 5+ years of experience in enterprise or SaaS software development.
- Strong hands-on experience with:
C#, .NET Core, Web API
Entity Framework (EF Core or EF6)
Angular or other frontend frameworks.
SQL Server â writing queries, stored procedures, indexing, and performance tuning
- Solid understanding of object-oriented programming, design patterns, and enterprise architecture.
- Experience with DDD, CQRS, and clean layering of business logic and data access.
- Experience with AWS
- Familiarity with multi-threading, asynchronous programming, and system performance tuning.
- Experience with modern DevOps tooling, CI/CD pipelines, and Docker.
- Strong debugging and troubleshooting skills.
- Excellent communication skills (written and verbal) in English.
- Experience working across multiple teams or squads.
- Exposure to event-driven architecture or messaging patterns.
- Knowledge of Microservices Architecture.
- Required: Active daily use of AI development tools like GitHub Copilot, Claude, or similar in your workflow.
Perks @Ubiminds
Work with U.S.-based product teams.
Remote-first culture + MacBook provided.
English lessons, tech talks, referral bonus, and learning initiatives.
Full back-office support: HR, career guidance, and admin services.
ð Apply now and join an international team building cloud-native, scalable solutions with modern engineering practices.
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