Backend Engineer – .NET APIs & Cloud

Qubeyond; United States; On-site; USD 85,000 - 125,000; Full time

Job summary

Qu in the United States is seeking a skilled .NET/C# engineer to design, build, test, and deploy REST APIs and backend services. Based in Rosslyn, VA, the team values collaboration with product and engineering on new features and reliable delivery.

You will work with SQL and NoSQL data stores, participate in code reviews, and embrace CI/CD, testing, and modern cloud platforms (Azure or AWS). Familiarity with AI-assisted tools is a plus.

Qualifications

• 3–5 years of professional experience in .NET / C#.
• Solid experience building and consuming RESTful services.
• Working knowledge of .NET 8, Docker, and cloud platforms (Azure or AWS).
• Comfort with unit and integration testing, and TDD practices.
• Familiarity with Git branching workflows and CI/CD pipelines.
• Experience using AI-assisted tools in your workflow.

Responsibilities

• Design, build, test, and deploy REST APIs and backend services in .NET.
• Collaborate with product and engineering on new features, from spikes through delivery.
• Participate in code reviews and contribute to team engineering practices.
• Work with SQL and NoSQL data stores in production systems.

Skills

.NET / C#

REST APIs

Docker

Cloud platforms

Unit testing

TDD

Git CI/CD

AI tools

Frontend frameworks

Mobile development

Performance testing

Tools

MongoDB

Job description

Qu in the United States is seeking a skilled .NET/C# engineer to design, build, test, and deploy REST APIs and backend services. Based in Rosslyn, VA, the team values collaboration with product and engineering on new features and reliable delivery.

You will work with SQL and NoSQL data stores, participate in code reviews, and embrace CI/CD, testing, and modern cloud platforms (Azure or AWS). Familiarity with AI-assisted tools is a plus.