Remote Senior .NET Backend Architect for Enterprise Systems

Proxify; United States; Remote; USD 120,000 - 180,000; Full time

Benefits offered by this job

On-time monthly payments

Remote work

Flexible hours

Long-term remote positions

Job summary

Proxify is seeking a Senior .NET Developer to join a high-growth client team as a core backend architect. You will lead the design and implementation of enterprise-grade applications, building distributed, high-throughput systems and ensuring secure, scalable backend infrastructure with cloud-native capabilities.

You will bring 6+ years of backend experience with C#/.NET, build scalable Web APIs, and leverage EF Core, Azure/AWS services, microservices, and DDD.

Qualifications

• 6+ years of professional backend experience with C# and the .NET ecosystem (6/8/9).
• Advanced proficiency in building scalable Web APIs with middleware, filters, and DI.
• Mastery of Entity Framework Core including performance tuning, migrations, and complex SQL Server schemas.
• Solid experience with cloud services (Azure or AWS), serverless functions, messaging queues (Service Bus), and containers.

Responsibilities

• Architect and implement robust, maintainable backend services from scratch.
• Identify and resolve performance bottlenecks, optimize memory usage and query execution times.
• Lead peer code reviews and establish coding standards for long-term health.
• Partner with Product Owners and Frontend Engineers to define technical requirements and API specs.
• Work with DevOps to manage deployment pipelines and ensure smooth releases.

Skills

C#

.NET ecosystem

Web APIs

Entity Framework Core

Azure/AWS

Microservices

DDD

Event-driven architecture

Unit testing (xUnit/nUnit)

Moq

English fluency

Tools

SQL Server

Azure Service Bus

Docker

Kubernetes

Job description

Proxify is seeking a Senior .NET Developer to join a high-growth client team as a core backend architect. You will lead the design and implementation of enterprise-grade applications, building distributed, high-throughput systems and ensuring secure, scalable backend infrastructure with cloud-native capabilities.

You will bring 6+ years of backend experience with C#/.NET, build scalable Web APIs, and leverage EF Core, Azure/AWS services, microservices, and DDD.