Top Senior .NET Developer Jobs

Develop, enhance, and maintain backend web applications and services using C#/.NET. Implement features with ASP.NET, Entity Framework, and SQL Server; write unit and integration tests; perform troubleshooting, code reviews, vulnerability remediation, and O&M tasks while collaborating with senior engineers and cross-functional teams.

As a Senior Software Product Engineer, you will enhance compliance solutions through advanced software development, performance optimization, and team collaboration to ensure high-quality outcomes and user experience.

Lead .NET Full Stack engineer responsible for architecting systems, driving technical strategy, leading multi-developer projects, mentoring engineers, improving processes, ensuring high-quality deliveries, and communicating with stakeholders. Must support emergency restoration work and travel regionally between MA/CT/NH.

As a Senior Software Engineer at Sovos, you'll lead modernization initiatives for the STAT platform, drive AI-assisted development, and mentor engineers while managing complex design and integrations.

The Senior Full-Stack Engineer will develop and maintain a .NET platform, focusing on frontend Angular applications and backend ASP.NET Core Web APIs, ensure security and performance, and optimize data management and CI/CD processes.

Develop and maintain a high-performance image processing system, optimizing algorithms for efficiency, and collaborating with hardware engineers for seamless integration.

Design, build, and maintain cloud-based, n-tier web applications across the full software development lifecycle. Collaborate with engineers and stakeholders, translate requirements into solutions, perform architecture work, estimate and plan projects, and support clients while ensuring high-quality delivery.

Design, implement, test, and operate SaaS features using C#/.NET across backend and frontend teams. Debug complex systems, automate testing and CI/CD, apply DevOps ownership, and incorporate AI-assisted SDLC practices to deliver secure, high-quality customer solutions.

Senior Full Stack Developer focusing on backend C#/.NET (Core/.NET 8) with preferred React front-end experience. Rebuild and modernize acquired real-estate/mortgage applications using ASP.NET Core, EF Core, OData, and ElasticSearch. Work remotely with a financial/real estate client on an 18–24 month project; a timed code exercise is required as part of the application.

The Senior .NET Developer will design, develop, and maintain applications using .NET technologies, conduct performance tuning, and collaborate with team members on software methodologies and architecture.

Design, architect, and build payment and transaction processing applications using C#/.NET. Lead cross-functional meetings, produce high-quality optimized code, implement web services, and collaborate with teams to deliver scalable, maintainable solutions.

The role involves developing software in .NET, focusing on C#, problem-solving, multi-tasking, and collaborating within teams while utilizing integration solutions and various web technologies.

Design, code, and test applications using .NET and SQL Server, develop web applications, create SQL queries, and integrate APIs. Provide technical support and guidance.

Develop scalable applications using .NET technologies and front-end frameworks, optimize solutions in Azure Cloud, collaborate with teams, and ensure robust data management.

Develop N-tier .NET web applications using .NET 2.0+ and WCF/web services. Write PL/SQL packages, XML stored procedures and triggers. Design and deploy complex SQL objects and relational schemas. Work with Infragistics controls and Team Foundation Server. 24-month contract in Rensselaer, NY; requires ~7 years experience and a Bachelor’s degree (proof required).

Lead .NET developer focused on designing, developing, and supporting MVC and SharePoint web applications. Provide architecture and code review, maintain and enhance existing code, build SharePoint web parts and workflows, analyze business needs, and recommend best-practice solutions leveraging out-of-the-box and custom SharePoint functionality.

Design, develop, test, and maintain full-stack .NET applications. Participate in Agile teams, code reviews, troubleshooting, unit testing, and collaborate with DBAs, QA, and stakeholders.

Senior .NET Developer for a 12-month engagement in Columbia, SC. Responsible for .NET architecture and programming, web and B2B web service design and support, UI and WinForms development, IIS administration, and application programming against Oracle/SQL databases.

Seek a .NET developer with ~7+ years experience (banking experience preferred). Work with .NET backend, AngularJS front-end (v2 or v4), JSON, jQuery, and SQL. Role may later transition to Spring/Struts technologies. Contract (12+ months) at Charlotte, NC or Reading, PA.

Lead .NET developer responsible for designing, implementing, testing, and deploying medium-to-large web applications using Microsoft .NET stack. Collaborate with engineers, stakeholders, and state IT staff, manage source/build systems, mentor junior staff, and participate in integration and system testing for a state DSS re-engineering project.

Seeking a Senior .NET Developer with ~7-9 years experience skilled in C#, WPF, Entity Framework, and MVC to develop and maintain .NET applications. Candidates must meet listed work-authorization criteria.

Lead development of enterprise-scale ASP.NET MVC and SPA applications. Gather requirements, design .NET architectures, implement Entity Framework/SQL solutions, build responsive front-ends (AngularJS/EmberJS/Bootstrap/Kendo), ensure high-availability, mentor teams, and collaborate with external groups in an Agile environment.

The Full Stack .Net Developer will develop and maintain web applications, write efficient code, and collaborate on new features.

The Senior .NET Developer modernizes legacy applications and develops new solutions using .NET technologies, focusing on enterprise application support and compliance within agile teams.

The Senior .NET Developer will design, develop, and maintain scalable web applications using .NET technologies, as well as lead code reviews and mentor junior developers while collaborating with stakeholders.