Senior Full Stack Software Engineer - .NET / Angular (439)

Want to get to the next step in your international career? We can support you!

Ubiminds is a GPTW-certified, people-first company that partners with American software product companies to scale their development footprint. Ubi custom-curates Brazilian top 5% talent for their LATAM strategy, offering a unique combo of staff augmentation and employer-of-record services.

Ubiminds is assisting a company that is building an exciting new product suite for Public Safety. 

We’re looking for a Senior .NET Full Stack Engineer with strong experience in .NET and Angular (16+) to help design and build robust SaaS applications at scale.

This role is ideal for someone who enjoys working across the full stack, solving complex technical challenges, applying modern engineering practices, and embracing AI-assisted development to boost productivity and quality.

- Design, build, and maintain scalable backend services using C# and the .NET ecosystem.

- Develop and maintain modern frontend applications using Angular 16+ (or similar frameworks when applicable).

- Build secure, high-performance SaaS solutions using cloud-native architectures (AWS preferred).

- Work extensively with relational databases (SQL Server / PostgreSQL), focusing on query optimization and performance tuning.

- Design and implement solutions involving JSON mapping and dynamic UI generation driven by JSON configurations.

- Work with NoSQL databases, preferably Amazon DocumentDB, to support flexible and scalable data models.

- Apply Shift Left development practices, owning testing, validation, and quality of delivered features.

- Write unit and integration tests to ensure reliability and low defect rates.

- Leverage AI-powered development tools (Copilot, Cursor, Claude Code, etc.) to accelerate coding, refactoring, and documentation.

- Collaborate closely with cross-functional teams to deliver features end-to-end.

- Participate in code reviews, architectural discussions, and continuous improvement initiatives.

- 8+ years of hands-on experience building SaaS or enterprise applications.

- Strong proficiency in C# and the .NET ecosystem.

- Experience with cloud platforms, preferably AWS (other major providers acceptable).

- Solid hands-on experience with Entity Framework.

- Deep understanding of relational databases, including performance tuning and query optimization (SQL Server / PostgreSQL).

- Strong expertise in JSON-based data modeling and dynamic UI generation.

- Solid understanding of NoSQL databases (Amazon DocumentDB preferred).

- Experience with Angular 16+ or another modern frontend framework.

- Strong troubleshooting, debugging, and performance optimization skills.

- Experience writing unit and integration tests.

- Comfortable working in a Shift Left development environment.

- Self-driven professional with strong ownership and collaboration skills.

- Clear and confident English communication skills (written and verbal).

- Experience implementing event-driven architectures in production environments.

- Hands-on experience with observability and monitoring tools (CloudWatch, Datadog, New Relic).

- Experience leading end-to-end delivery in Shift Left environments with limited or no dedicated QA.

- Experience building APIs using GraphQL.

- Background working with Windows Services, desktop applications, or WPF.

- Basic to intermediate understanding of AI concepts such as LLMs, MCP, RAG, or similar.

- Collaborative environment working closely with PMs, QA, and designers.

- Engineers are fully responsible for testing and code quality (shift-left development culture).

- Balanced workload of new feature development and ongoing system maintenance.

- Encourages ownership, accountability, and continuous improvement.

People First. We are all about people!

Challenge yourself. There’s always room for improvement and continuous improvement is in our essence.

Make it happen. Be ready to take challenges as they come. It’s all about attitude and commitment.

We’re in this together. We work as a team, thrive as a team, and evolve as a team.

Averaging on awesome. We work hard to deliver high-quality services and look forward to exceeding expectations.

Keep it real. We promise you honesty, transparency, and openness, regardless of the situation.

As a Full Stack Engineer - NET / Angular @Ubiminds, you:

- 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

1. Interview with Tech Recruiter (chat about the job opening and your experiences)

2. Client process (this may vary)

3. Offer (yay)