Senior Software Engineer – .NET, Angular

Role Overview

• 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 Server—designing 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 code—unit, integration, and performance testing—as 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)—including GitHub Copilot, Claude, or similar—to assist with code generation, refactoring, documentation, and development speed.

Requirements

• 5+ years of experience in enterprise or SaaS software development.
• Strong hands-on experience with:
• C#, .NET Core, Web API
• Angular or other frontend frameworks.
• Entity Framework (EF Core or EF6)
• SQL Server – 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.
• Familiarity with multi-threading, asynchronous programming, and system performance tuning.
• Comfortable with Git and working in a modern development environment (CI/CD, Agile).
• Strong debugging and troubleshooting skills.
• Excellent communication skills (written and verbal) in English.
• Experience working across multiple teams or squads.
• Required: Active daily use of AI development tools like GitHub Copilot, Claude, or similar in your workflow.

Tech Stack

• Angular
• Entity Framework
• SQL
• .NET

Benefits

• You 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