Ubiminds: You, International. · 1 day ago
Senior Backend Developer – .NET (454)
United States
Full-time
Remote
Senior Level
5+ years expUbiminds is a GPTW-certified, people-first company that partners with American software product companies to scale their development footprint. They are seeking a Senior Backend Developer – .NET to help design, build, and integrate core platform services for an HCM product portfolio, focusing on platform modernization and foundational systems.
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Responsibilities
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
Qualification
Required
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), 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
Preferred
Real-world experience building AI-powered features (e.g., smart forms, intelligent search, NLP features)
Experience working in a Shift Left environment with full feature ownership—design to production
Exposure to event-driven architecture or messaging patterns
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
Company
Ubiminds: You, International.
We connect people and companies who shape the world through software. NorthAm + LatAm. Brains + Hearts.
51-200 employees
Funding
Current Stage
Growth StageCompany data provided by crunchbase