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Senior Software Developer

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Onsite

Senior Software Developer

The SeventhHire LLC

Senior Software Developer

Skills

SQL QueriesNextReactTypescriptC#.NETMicroservicesHTMLMicrosoft SQL ServerGitJenkinsGitHubJiraJavascriptAzure

25 days ago

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Important information


Contract type:

Permanent

Location:

Columbus, OH, USA

Work mode:

Onsite

Published on:

25 September 2026

What they need


Seeking a highly skilled Senior Software Developer with extensive experience in full-stack application development using Microsoft technologies and modern JavaScript frameworks. The ideal candidate will have expertise in .NET Framework, .NET Core, ASP.NET MVC, SQL Server, ReactJS, Next.js, TypeScript, and CI/CD practices. This role is responsible for designing, developing, deploying, and maintaining scalable enterprise applications while providing technical leadership, mentoring team members, and driving development best practices.

Key Responsibilities

  • Design, develop, test, and maintain enterprise applications using C#, .NET Framework, and .NET Core/.NET 8+.

  • Build modern, responsive web applications using ASP.NET MVC, ReactJS, Next.js, HTML5, CSS3, JavaScript, and TypeScript.

  • Develop and maintain RESTful APIs, microservices, and backend services.

  • Design, develop, and optimize database solutions using Microsoft SQL Server.

  • Implement and manage CI/CD pipelines to support automated build, testing, and deployment processes.

  • Ensure adherence to software development, best practices, coding standards, and security guidelines.

  • Perform code reviews, troubleshooting, debugging, and application performance optimization.

  • Collaborate with product owners, architects, business stakeholders, and cross-functional teams to deliver high-quality solutions.

  • Mentor junior developers and provide technical guidance across projects.

  • Participate in Agile/Scrum ceremonies, sprint planning, estimation, and solution design discussions.

  • Create and maintain technical documentation, deployment procedures, and system architecture documentation.

Required Skills & Experience

  • 5+ years of SOLID experience in software development.

  • Strong proficiency in C#, .NET Framework, .NET Core, ASP.NET MVC, and ASP.NET Core.

  • Hands-on experience with ReactJS, Next.js, HTML5, CSS3, JavaScript, and TypeScript.

  • Strong knowledge of SQL Server, including database design, stored procedures, query optimization, and performance tuning.

  • Experience developing and consuming REST APIs.

  • Experience with Entity Framework / Entity Framework Core.

  • Hands-on experience with CI/CD pipelines using Azure DevOps, GitHub Actions, or Jenkins.

  • Proficiency with Git and modern source control practices.

  • Experience working in Agile/Scrum environments.

  • Knowledge of Azure Cloud Services, DevOps practices, and application deployment.

Primary Technology Stack

C#, .NET Framework, .NET Core, ASP.NET MVC, ASP.NET Core, SQL Server, ReactJS, Next.js, HTML5, CSS3, JavaScript, TypeScript, Azure DevOps, Jenkins, CI/CD Pipelines, Git, REST APIs, Entity Framework, Azure Cloud Services, JIRA.

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