Senior .NET Core Engineer - Hybrid, Cloud & Microservices

Prime Source Technologies, LLC; Vienna (VA); Hybrid; USD 120,000 - 170,000; Full time

Job summary

Prime Source Technologies (PST) is seeking a skilled Senior .NET Core Developer to design, develop, and optimize modern, high-performance enterprise applications. The position is in Northern Virginia, hybrid work from the office initially 3 days per week, with W2, 1099, C2C, and H1B options.

You will design and implement RESTful APIs and GraphQL endpoints, build microservices with Docker/Kubernetes, and maintain CI/CD pipelines using Azure DevOps or GitHub Actions.

Qualifications

• Bachelor's degree in CS, Eng, or related field.
• 10+ years of software development experience with at least 3 years in .NET Core.
• Expert in C#, ASP.NET Core, EF Core, and LINQ.
• Experience with microservices and container deployments (Docker, Kubernetes).
• Hands-on with Azure cloud and SQL Server.
• Experience with message brokers (Azure Service Bus, RabbitMQ, Kafka).
• Proficient in Blazor/Razor UI and CI/CD workflows.
• Strong problem-solving and communication skills.

Responsibilities

• Design, develop, and maintain robust, scalable apps using C# and .NET Core.
• Build RESTful APIs and GraphQL endpoints for cross‑platform integration.
• Develop microservices with Docker/Kubernetes and secure CI/CD pipelines.
• Apply DDD and clean architecture principles to enterprise systems.
• Collaborate with UI teams using Blazor to deliver responsive interfaces.
• Ensure quality via unit/integration tests and automated frameworks.
• Mentor junior developers and participate in peer code reviews.

Skills

Problem solving

Communication

Mentoring

Leadership

Education

Bachelor's degree in CS/Engineering/related

Microsoft certification

Cloud and AI certification

Tools

ASP.NET Core

C#

Entity Framework Core

LINQ

Docker

Kubernetes

Azure

SQL Server

Azure Service Bus

RabbitMQ

Kafka

Blazor

Identity Server / Azure AD

Job description

Prime Source Technologies (PST) is seeking a skilled Senior .NET Core Developer to design, develop, and optimize modern, high-performance enterprise applications. The position is in Northern Virginia, hybrid work from the office initially 3 days per week, with W2, 1099, C2C, and H1B options.

You will design and implement RESTful APIs and GraphQL endpoints, build microservices with Docker/Kubernetes, and maintain CI/CD pipelines using Azure DevOps or GitHub Actions.