Desenvolvedor(a) Full Stack React e C#/.NET Sênior

This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a Desenvolvedor(a) Full Stack React e C#/.NET Sênior based in Brazil.

This role is designed for an experienced Full Stack Engineer who will contribute to the development and evolution of modern web applications. You will work across the entire software lifecycle, from technical discovery and solution design to implementation, testing, deployment, and support. The position combines frontend expertise with strong backend development skills to deliver scalable and high-quality digital solutions. You will collaborate with technical teams to define architectures, improve engineering practices, and solve complex challenges. Your work will directly impact the performance, usability, and reliability of enterprise applications used in real business environments. This is an opportunity for a senior professional who values autonomy, technical excellence, and continuous innovation in a collaborative technology environment.

Accountabilities:: Develop and evolve enterprise web applications using React, TypeScript, C#, and modern .NET technologies.

Build responsive, accessible, and reusable user interfaces following frontend development best practices.

Design, implement, and maintain REST APIs using ASP.NET Core Web API.

Integrate applications with APIs, microservices, databases, and external systems.

Participate in technical refinements, solution design discussions, and architectural decisions.

Develop and maintain unit and integration tests to ensure software quality and reliability.

Perform code reviews and contribute to technical standards, engineering practices, and continuous improvement initiatives.

Create and maintain CI/CD pipelines using Azure DevOps.

Investigate incidents, troubleshoot technical issues, and improve application performance and stability.

Provide technical guidance and support to other team members, contributing to knowledge sharing and team growth.

Requirements:

Strong professional experience as a Full Stack Developer or similar software engineering role.

Solid experience with React.js and TypeScript, including Hooks, Context API, React Router, and TanStack Query.

Strong knowledge of HTML, CSS, and JavaScript for building modern web applications.

Advanced experience with C# and modern .NET frameworks.

Experience developing REST APIs using ASP.NET Core Web API.

Experience working with Entity Framework Core and SQL Server or Azure SQL.

Knowledge of microservices architectures and integrations between distributed systems.

Experience implementing authentication and authorization solutions using OAuth 2.0, OpenID Connect, and JWT.

Strong understanding of SOLID principles, Clean Code practices, Clean Architecture, or Hexagonal Architecture.

Experience writing automated tests using tools such as Vitest, React Testing Library, and xUnit.

Familiarity with Git workflows, Pull Requests, and collaborative code review processes.

Advanced English proficiency and fluent/native Portuguese communication skills.

Autonomous profile with strong problem-solving abilities, systemic vision, and technical leadership capabilities.

Nice-to-have qualifications:

Experience with Azure DevOps.

Knowledge of Material UI, Zustand, Vite, and Storybook.

Experience with Micro Frontends architectures.

Familiarity with Playwright or Cypress testing frameworks.

Knowledge of Dapper, CQRS, and Mediator patterns.

Experience with Redis, NoSQL databases, and messaging systems.

Knowledge of event-driven architectures.

Experience with Datadog or other observability platforms.

Experience working with .NET 8 or later versions.

Benefits:

5 days of planned absence per year.

Car rental partnership benefits.

Employee referral program.

Opportunity to work on modern and challenging technology projects.

Collaborative environment with continuous support and professional growth opportunities.

Space to suggest ideas, innovate, and contribute to technical improvements.

How Jobgether works: We use an AI-powered matching process to ensure your application is reviewed quickly, objectively, and fairly against the role's core requirements. Our system identifies the top-fitting candidates, and this shortlist is then shared directly with the hiring company. The final decision and next steps (interviews, assessments) are managed by their internal team. We appreciate your interest and wish you the best!  Why Apply Through Jobgether?    Data Privacy Notice: By submitting your application, you acknowledge that Jobgether will process your personal data to evaluate your candidacy and share relevant information with the hiring employer. This processing is based on legitimate interest and pre-contractual measures under applicable data protection laws (including GDPR). You may exercise your rights (access, rectification, erasure, objection) at any time.     #LI-CL1