Top Senior .NET Developer Jobs in Columbus, OH

Design, develop, test, and deploy scalable full-stack solutions across the lifecycle. Collaborate in Agile teams, use cloud platforms and CI/CD, mentor teammates, engage directly with clients, and apply modern development and DevOps practices.

Senior .NET developer responsible for application development using Microsoft stack (C#, .NET, ASP), LAMP technologies, and multiple RDBMS. Integrate with SaaS platforms (Salesforce, Concur, Coupa, Qualtrics), support production releases, follow change-management and documentation processes, and improve processes while managing multiple tasks in a fast-paced environment.

Senior .NET developer responsible for designing, developing, testing and documenting enterprise applications using C#, .NET (1.1–4.0), ASP.NET, WinForms and Microsoft SQL Server. Acts as technical lead between developers and management, delegates work, ensures on-time delivery, creates test and technical documentation, and follows SDLC and enterprise design standards.

Design, build, and maintain production-grade .NET web applications and APIs on Azure. Own full-stack delivery from data models and SQL to front-end components, CI/CD, testing, and architecture. Collaborate with product and delivery teams, participate in code reviews, and ensure secure, observable, well-tested services.

Develop and maintain web-based applications using .NET/C#, JavaScript, HTML/CSS, SQL and Oracle/SQL Server. Perform root cause analysis, collaborate with teams for requirements, follow Agile SDLC, present change demonstrations, and use Azure DevOps/Jira for lifecycle management. Implement and maintain Blazor components.

Lead design and delivery of scalable, reliable software using C#/.NET, SQL Server, React, and Azure. Own complex initiatives from design through operations, mentor engineers, improve CI/CD, observability, and apply DDD/TDD/VSA practices. Use modern APIs, microservices or modular monoliths, and AI-assisted tooling to improve delivery.

Seeking a Senior Full Stack .NET Developer to work on a social good project, with strong skills in C#, AngularJS, design, and UX. Requires 5+ years of experience.

The Staff Engineer will leverage 5+ years of experience in C#, JavaScript, and frameworks to lead and innovate solutions in a collaborative environment.

Develop internal applications for a call center, incorporating tools like HREM and payroll systems. Self-management and communication skills are essential.

The Lead .Net Developer oversees software development, interfaces with management, delegates tasks, and ensures projects meet specifications and deadlines.

Looking for a Senior .Net Programmer to develop and support applications using ASP.NET MVC, C#, SQL Server, and agile methodologies. Responsibilities include development, testing, and maintenance of applications.

Lead design, development, and implementation of full-stack applications using .NET and Angular. Collaborate with teams to gather requirements, ensure security, scalability, and performance on Azure, manage SQL Server databases, use Git for version control, and mentor engineering teammates while adopting best practices and emerging technologies.

Lead development of maintainable .NET applications within a small team, apply test-driven development, coach client teams on modern software practices, and continuously improve technical skills.

Senior .NET Software Engineer responsible for end-to-end software development using Microsoft technologies. Requires extensive experience in SDLC, design principles, technical documentation, web application development with .NET, Agile/SCRUM, Entity Framework, database design, and version control. Familiarity with project tools JIRA, TEMPO, Bitbucket, and Confluence preferred.

Senior .NET Web App Developer responsible for designing and building .NET web applications, implementing Oracle PL/SQL solutions, using Entity Framework and Blazor, applying design principles, producing technical documentation, performing performance tuning, and collaborating in Scrum/Agile teams with Bitbucket, JIRA, Tempo, and Confluence.

Senior .NET full-stack developer responsible for custom application development, API integrations, database optimization, deployments, troubleshooting, performance, security, and production support using .NET/C#, ASP.NET Core, SQL, modern frontend frameworks, cloud, and CI/CD.

Design, develop, test, and deploy .NET solutions (APIs and web apps). Build and consume RESTful services, work with SQL and NoSQL databases, use cloud (Azure/AWS) and Docker, apply unit/integration/performance testing, participate in code reviews, define features via spikes, and architect scalable, high-performance systems. Support occasional after-hours and on-call rotation.

Design, build, and maintain scalable web applications for payroll and accounting. Collaborate with engineers and product partners, write tested code, participate in code reviews, contribute to architecture, improve CI/CD and monitoring, support production (including on-call), and communicate progress while continuously learning.

Architect, develop, test, and operate .NET (C#) back-end services and RESTful APIs for a multi-tenant SaaS identity platform. Design and maintain SQL Server data layer, contribute to Azure-hosted deployments and CI/CD pipelines, perform code/design reviews, mentor peers, and collaborate with product, architecture, and DevOps teams.

Build and maintain scalable, cloud-native APIs using .NET. Enhance core platform components, lead architecture and testing discussions, optimize telemetry and performance, collaborate cross-functionally, conduct code reviews, and mentor team members.

The Senior .Net Developer will enhance SDG's C#/.NET Core codebase, design high-load services, and optimize MS SQL queries, benefiting from a remote work environment and attractive benefits.

As a Senior Software Engineer at PerfectServe, you'll design, build, and maintain high-quality code for healthcare communication systems, mentoring junior engineers and collaborating across teams to improve patient care and clinical workflows.

The Senior .NET Software Engineer will drive development of .NET software products, focusing on back-end engineering, code reviews, and collaborating with cross-functional teams.

Develop and maintain scalable software solutions, mentor developers, and integrate AI tools. Collaborate on technical solutions aligned with business goals.