Senior .NET Full-Stack Engineer - Remote

One Call; Olympia (WA); On-site; USD 110,000 - 165,000; Full time

Job summary

One Call is seeking a seasoned Full Stack Engineer to design, develop and maintain scalable web applications using .NET, ASP.NET, and MSSQL. You will work across frontend and backend, building REST APIs and microservices, and delivering secure, high-performance solutions.

The role requires 7+ years of full stack experience, strong C#/.NET skills, and frontend knowledge (HTML5/CSS3/JS). Collaboration in Agile teams and a focus on DevOps with CI/CD are essential.

Qualifications

• Bachelor's degree in Computer Science or related field (or equivalent experience).
• 7+ years of experience in full stack development.
• Strong proficiency in C# and .NET Framework/.NET Core MVC/Web API.
• Experience with MSSQL, complex SQL queries and performance tuning.
• Frontend experience with HTML5/CSS3 and JavaScript.
• Experience with React, Angular, or Vue.
• Knowledge of REST APIs, JWT/OAuth, and web security.
• Familiar with Git and version control.

Responsibilities

• Design, develop, and maintain web apps using ASP.NET and C#.
• Build and consume RESTful APIs and microservices.
• Develop responsive front-ends with modern JS frameworks.
• Write efficient SQL queries and optimize database performance.
• Improve performance, security, and scalability.
• Collaborate in Agile teams and participate in code reviews.
• Implement CI/CD pipelines and DevOps practices.
• Troubleshoot production issues with reliability and speed.

Skills

C#

ASP.NET

JavaScript

HTML5

CSS3

SQL Server

REST APIs

Git

Azure

Docker

Kubernetes

React

Angular

Vue

Education

Bachelor's degree in Computer Science or related field

Tools

Docker

Kubernetes

Git

SQL Server Management Studio

Job description

One Call is seeking a seasoned Full Stack Engineer to design, develop and maintain scalable web applications using .NET, ASP.NET, and MSSQL. You will work across frontend and backend, building REST APIs and microservices, and delivering secure, high-performance solutions.

The role requires 7+ years of full stack experience, strong C#/.NET skills, and frontend knowledge (HTML5/CSS3/JS). Collaboration in Agile teams and a focus on DevOps with CI/CD are essential.