Top Senior .NET Developer Jobs

Design, build, and maintain web pages and web applications end-to-end. Coordinate with other development teams (D365 CRM, D365 Finance & Ops, Azure, mobile, MFA). Enhance and support multiple systems including Client Portal, Payroll Processing, SharePoint, Data Factory, and Integration Services. Gather and document requirements, participate in usability testing, optimize code for performance and reliability, and troubleshoot issues while collaborating with stakeholders.

Lead analysis, design, development, testing, implementation and support of global financial .NET applications. Translate user requirements into technical specs, oversee onshore/offshore teams, participate in code reviews, maintain documentation, estimate work, follow SDLC, and support code promotion (TFS).

Develop and maintain web applications using .NET technologies. Work with SQL Server 2000-2008, .NET MVC frameworks, and Visual Studio 2010 to implement application functionality and database integration.

Develop and maintain web applications using .NET technologies. Build with .NET MVC and Visual Studio 2010, implement database interaction using ADO.NET and SQL Server (2000-2008), and troubleshoot, optimize, and support application code.

Develop, maintain, and support C#/.NET web and desktop applications for clearing and financial-management systems. Work with business users and engineers to analyze requirements, debug and improve performance, implement monitoring, design fixes and integrations, and deliver production-ready deployments and emergency fixes. Contribute to documentation, collaboration, and automation to improve production performance and reliability.

Design, build, and maintain scalable .NET full-stack applications and services for marketing and consumer web platforms. Lead architecture, prototypes, and deployments; improve performance, reliability, and developer productivity; troubleshoot distributed systems; mentor developers; and participate in CI/CD and AI-assisted development workflows.

As a Senior Software Developer, you'll design, build, deploy, and support web applications using the .NET stack and Azure, while collaborating with a team.

Seeking a Senior Software Developer to design, build, deploy, and support web applications using the .NET stack and other technologies in a collaborative team environment.

The .NET Developer will collaborate in Agile teams to design, implement, and maintain software solutions, ensuring high-quality code and performance optimization. Responsibilities include coding, debugging, and writing tests.

The Senior Full Stack Engineer will modernize legacy systems to microservices, maintain .NET applications, optimize SQL databases, and develop frontend interfaces.

Lead design, delivery, and support of cloud-native, full-stack .NET applications for cash management. Build scalable APIs and microservices, enforce engineering best practices, mentor junior engineers, collaborate with business stakeholders, and use CI/CD, automated testing, and AI tools to improve quality and delivery.

Develop and maintain full-stack web applications using C#/.NET, ASP.NET, SQL Server, JavaScript, React or Angular, Azure, and microservices. Responsibilities include architecture, requirements analysis, coding, testing, debugging, deployment, production support, technical documentation, and troubleshooting across on-premises and cloud environments. The role also applies LLM coding agents, agentic coding, and prompt engineering while collaborating with business users, analysts, QA teams, and vendors.

Leads enterprise full-stack software engineering projects from design through deployment and support. Develops cloud-native applications, microservices, secure APIs, smart search functionality, and product catalog ingestion pipelines using .NET Core, React, and search technologies. Provides technical leadership, architectural guidance, code reviews, incident management, troubleshooting, process improvement, and mentorship while partnering with product, infrastructure, operations, and business teams.

Design, develop, test, maintain, and support full-stack business applications using .NET, C#, Angular, APIs, integrations, and SQL Server. Translate backlog requirements into reliable solutions, troubleshoot production defects, improve performance, reduce technical debt, participate in reviews and testing, support releases, document systems, and mentor junior and mid-level engineers. Collaborate with product, architecture, QA, DevOps, infrastructure, DBA, and business teams in a hybrid Austin environment.

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

Lead technical consultant responsible for full-stack feature development of healthcare portal applications. Duties include translating requirements into UI/UX and technical designs, building Angular frontends and C# ASP.NET Core backends, designing databases, integrating external systems, ensuring performance, security, compliance, mentoring engineers, and contributing to architecture, testing, and CI/CD on Azure.

Develop and enhance ASP.NET/C# browser-based middle-tier and front-end applications, perform unit security scanning and remediate PEN test/SSDLC findings, create installation/maintenance documentation, and collaborate with stakeholders, QA, and architects to design and implement secure multi-tier solutions.

Design, build, and maintain custom ASP.NET WebForms pages, console apps, and SSRS 2008 reports. Troubleshoot custom development, manage branch merges and CI (Perforce, TeamCity, Octopus, GitHub), document features, moderate API/SSO forum, and support PHP SDK. Engage directly with customers in pre- and post-sales activities.

Design and build enterprise full-stack eCommerce solutions, architect scalable service layers, collaborate with QA and Ops, evaluate and extend procured code, research technologies, and promote DevOps and testing best practices in an Agile environment.

Rewrite a legacy application into a modern enterprise web app, designing architecture and selecting technologies. Build AngularJS front-end, integrate with RESTful APIs and .NET back end (C#, Entity Framework/NHibernate), apply OOP, TDD, CI, refactoring, and testing (Mocha/Jasmine and NUnit/Microsoft Test). Collaborate with team and potentially consult with stakeholders.

The .NET Developer will provide support for new applications and enhancements, implement applications, design specifications, and perform testing in an Agile environment.

The Senior Full Stack .NET Engineer designs and maintains software systems, manages API integrations, and works closely with cross-functional teams to improve internal platforms and resolve production issues.

As a Senior Full-Stack Software Engineer at Ripple, you'll design and deliver cloud-native solutions using Azure and .NET, mentor engineers, and ensure high-quality software delivery while managing full-stack applications.

As a Staff Software Developer, you'll build full-stack, cloud-native solutions on Azure, own delivery pipelines, ensure software quality, and mentor engineers while linking modern tech with financial organizations.

Develop and maintain application software (primarily .NET and Java), support users daily, review and improve others' code, produce documentation, and work with web technologies, system interfaces, testing methodologies, and basic database administration to support Air Force and DoD programs.