Senior Full Stack Software Engineer - .NET/React (539)

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 [link removed] is assisting a company that is transforming the way organizations discover, engage, and hire the best talent. Connecting companies and candidates anytime, anywhere, end-to-end hiring platform features video interviewing, assessments, and conversational AI. As an industry leader in science-backed, modern hiring solutions powered by ethical AI, they have hosted more than 70 million video interviews and 200 million chat-based candidate engagements for over 1,200 pioneering customers around the [link removed] now! This is a unique opportunity for you to not only accelerate your international career but also work in a groundbreaking [link removed] are seeking a Senior Full Stack Software Engineer to join our platform team. You will help maintain and enhance a critical codebase, focusing primarily on backend systems built with .NET and frontend components using React and [link removed] role involves close collaboration with other engineers and cross-functional teams to resolve issues, improve reliability, and deliver incremental improvements, with opportunities to expand into more feature-driven work over [link removed] you'll do 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. In order to succeed in this position, you will need:Mandatory skills 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. Nice to Have 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. Perks and BenefitsAs a Senior Full Stack Software Engineer @Ubiminds, 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 Interview with Tech Recruiter (specific chat about the job opening) Client process (including technical challenges and on-demand assessments) Offer Originally posted on Himalayas