Senior Full Stack Software Engineer - .NET/React

Summary

Join Ubiminds, a GPTW-certified company, as a Senior Full Stack Software Engineer and contribute to a platform transforming talent acquisition. You will maintain and enhance a critical codebase using .NET, React, and TypeScript. Collaborate with engineers and cross-functional teams to improve reliability and deliver incremental improvements. This role offers opportunities to expand into feature-driven work. The position requires 7+ years of experience with .NET Core/C# and expertise in REST APIs, microservices, and cloud platforms. Ubiminds provides a remote-first policy, MacBook, growth opportunities, English lessons, referral bonuses, and access to their Florianópolis headquarters.

Requirements

• 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

Responsibilities

• 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

Preferred Qualifications

• 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

• 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