6913 Senior Fullstack – .NET Core / React.js

We are looking for a Senior Full Stack Engineer with strong hands-on experience in .NET Core, C#, React.js, and SQL Server to join a team developing and maintaining scalable enterprise applications.

This position requires a strong technical background across backend and frontend development, as well as the ability to communicate effectively with US-based clients and cross-functional teams.

? What you'll do

• Design, develop, and maintain scalable backend services using .NET Core, C#, MVC, and Web API.
• Build clean, reusable, and high-quality frontend components using React.js and Redux.
• Develop and maintain unit, integration, and functional tests.
• Write and optimize complex SQL Server queries and stored procedures.
• Collaborate directly with US-based clients and technical teams to understand requirements and deliver solutions.
• Debug, refactor, and optimize existing applications.
• Participate throughout the complete Software Development Life Cycle (SDLC).
• Create and maintain technical documentation.
• Provide production and post-implementation support when required.
• Participate actively in Agile/Scrum ceremonies.
• Collaborate with architects and technical leads to ensure alignment with architectural standards and best practices.

Requisitos

Must-have requirements

• 6+ years of professional software development experience, ideally in Full Stack roles.
• Strong hands-on experience with .NET Core and C#.
• Strong experience developing RESTful services using Web API.
• Solid professional experience with React.js.
• Experience with Redux, JavaScript, HTML, and CSS.
• Strong SQL Server knowledge, including complex queries and stored procedures.
• Experience with Git and version control workflows.
• Experience working with Agile/Scrum methodologies.
• Understanding of enterprise software development and release processes.
• Strong problem-solving and debugging skills.
• Ability to work independently and manage multiple priorities.
• Advanced English (B2+/C1), with the ability to communicate effectively with US-based clients and stakeholders.

⭐ Nice to have

• Experience with Microsoft Azure, particularly Azure Functions, Service Bus, or Blob Storage.
• Experience with CI/CD pipelines and DevOps practices.
• Experience with testing frameworks such as xUnit, NUnit, Jest, or Karma.
• Previous experience in client-facing roles with US-based companies or clients.