Senior Full Stack Engineer .NET / React (479)

Info on the Senior Fullstack Engineer .

NET / React role Ready to take 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 global teams.

We curate top LATAM talent and connect professionals with long-term, high-impact opportunities while providing full employer-of-record support.

In this role, you will join a US-based product company that builds digital interviewing and talent assessment solutions used globally.

Challenge We’re looking for a Senior Full Stack Software Engineer with strong .

NET (C#) and React expertise to join one of the Assessment product teams.

This is a new role, and the ideal candidate must be comfortable handling ambiguity, adapting to evolving requirements, and contributing to both new feature development and existing system evolution.

You’ll work in a collaborative, distributed team environment and play a key role in shaping scalable and maintainable solutions.

Responsibilities: - Develop new features and maintain existing components across front-end and back-end systems. - Build and enhance applications using React (front-end) and .

NET / C# (back-end). - Design and optimize MS SQL databases for performance and reliability. - Contribute to architectural discussions and system design decisions. - Write clean, maintainable, and testable code. - Collaborate closely with cross-functional teams, including product and engineering stakeholders. - Help improve engineering standards and development workflows.

Mandatory Skills: - Strong experience with .

NET (C#) in production environments. - Solid experience building modern front-end applications with React. - Experience working with MS SQL or similar relational databases. - Senior-level mindset with strong ownership and accountability. - Experience working on existing production systems (not only greenfield). - Ability to handle evolving requirements and technical ambiguity. - Strong English communication skills (written and verbal). - Experience collaborating in distributed teams.

Nice to Have: - Experience with microservices architectures. - Familiarity with AWS cloud environments. - Exposure to test automation practices. - Experience with AWS AI-related services such as SageMaker, Lex, Comprehend, or Rekognition (bonus, not required).

Team & Environment: - Join one of the Assessment-focused engineering teams. - Collaborative environment with senior engineers and technical leadership. - Strong focus on product evolution and maintainability.

About Ubiminds Our Culture - 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.

Perks and Benefits As a Full Stack Engineer - NET / React @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 How our process works 1.

Interview with Tech Recruiter (chat about the job opening and your experiences) 2.

Technical Assessment 3.

Client Interview 4.

Offer (yay)