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Ubiminds

Senior Full Stack Software Engineer – .NET, React

Ubiminds

Senior Full Stack Software Engineer maintaining backend services in .NET and enhancing frontend components using React. Collaborating with engineers on a modern hiring platform for global talent acquisition.

Posted 6/1/2026full-timeRemote • 🇧🇷 BrazilSeniorWebsite

Tech Stack

Tools & technologies
AWSAzureCloudCypressDockerEntity FrameworkGoogle Cloud PlatformJavaScriptJestKubernetesMicroservices.NETReactTypeScript

About the role

Key responsibilities & impact
  • Design, implement, and maintain robust .NET Core services and APIs within a microservices architecture.
  • Build responsive and accessible front-end experiences using React and TypeScript.
  • Write clean, testable, and scalable code, following modern engineering best practices.
  • Support automated test coverage for high-quality releases.
  • Participate in design reviews, code reviews, and technical planning.
  • Help identify and reduce technical debt across the platform.

Requirements

What you’ll need
  • 7+ years of professional experience with .NET Core / C# for web applications.
  • Solid experience with REST APIs and microservices design.
  • Experience with cloud platforms and tooling (e.g., Azure, AWS, or GCP).
  • Strong proficiency with JavaScript, HTML, CSS, and frameworks like React.
  • Experience with relational databases and ORMs such as Entity Framework Core.
  • Familiarity with Git workflows and source control best practices.
  • Basic reading and writing skills in English (used for reading documentation, variable naming, and code comments).
  • Ability to collaborate in distributed, remote teams.
  • Experience working on high-scale enterprise platforms.
  • Familiarity with automated testing tools: xUnit, NUnit for .NET; Jest, Cypress for front-end.
  • Experience with Docker, Kubernetes, or other container orchestration tools.
  • Experience with observability tools such as OpenTelemetry, Datadog, etc.
  • Exposure to legacy-to-modern migration projects.
  • Knowledge of secure coding practices.

Benefits

Comp & perks
  • 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

ATS Keywords

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Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard Skills & Tools
.NET CoreC#REST APIsmicroservicesJavaScriptHTMLCSSReactEntity Framework Coreautomated testing
Soft Skills
collaborationcommunication