Top Senior .NET Developer Jobs in Minneapolis, MN

Lead the design, development, deployment, and support of scalable .NET backend applications on Azure. Build microservices, REST APIs, and event-driven systems using Azure services, Docker, and AKS. Implement CI/CD pipelines and Infrastructure as Code, while improving reliability, security, observability, and performance. Troubleshoot complex production issues and collaborate with engineering, architecture, platform, and business teams.

Own and evolve Swyfft’s partner-facing insurance API, including resource design, versioning, backward compatibility, authentication, rate limiting, error handling, metrics, documentation, and contract testing. Build production C# code, maintain the translation layer between public APIs and internal systems, support partner integrations, and collaborate with QA and product. The role requires substantial public API experience, strong API security and multi-tenancy knowledge, and fluency in C#, ASP.NET Core, SQL Server, and Azure.

Senior .NET Software Engineer responsible for designing, developing, maintaining, and modernizing secure applications supporting prepaid card manufacturing. Leads architecture discussions, code reviews, DevOps and CI/CD improvements, reliability monitoring, defect resolution, and compliance efforts. Collaborates with stakeholders, manages projects independently, and mentors junior developers while supporting legacy and modern systems.

Designs, develops, maintains, and troubleshoots scalable software applications using .NET, SQL Server, UI frameworks, and cloud technologies. Collaborates with product owners, developers, testers, and technology leads; participates in code reviews; writes documented code; and improves software development practices.

Build and support complex features across C#/.NET back-end services and React front ends. Responsibilities include technical design, API and data modeling, secure and tested coding, production troubleshooting, code reviews, mentoring, documentation, and improving engineering practices. Collaborate with Product, QA, DevOps, Technical Leads, and architecture teams while balancing delivery, maintainability, performance, accessibility, observability, and security.

Leads architecture and development of complex backend services for a commercial health plan platform. Designs .NET Core and Azure systems, develops claims, eligibility, and benefits functionality, manages healthcare data integrations, and owns cloud infrastructure and CI/CD architecture. Provides technical leadership through code reviews, testing standards, mentoring, and architecture decisions while ensuring performance, reliability, security, and regulatory compliance.

Develop and optimize Microsoft .NET applications, legacy systems, and microservices with a focus on performance, scalability, reliability, and observability. Responsibilities include code reviews, performance testing, CI/CD integration, architecture and sprint delivery, legacy code and SQL tuning, cloud application deployment on Azure, automated testing, and resolving customer issues. The developer collaborates with architects, QA, technical support, and cross-functional teams using SAFe Agile practices.

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.

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.

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.

Leads the design, development, and implementation of full-stack applications using C#, .NET, Angular, Azure, and SQL Server. Collaborates with cross-functional teams, ensures application security, performance, and scalability, applies Git-based version control practices, mentors developers, and stays current with emerging technologies.

Build and maintain scalable, cloud-native APIs and high-value core system components using .NET and related technologies. Lead software architecture and testing discussions, enhance core offerings, collaborate cross-functionally, and ensure quality through code reviews, unit testing, functional testing, telemetry, and performance tuning. Mentor teammates and contribute to continuous technical and process improvement.

Lead development of secure, scalable digital banking software across front-end and backend systems. Design Angular or React applications, build APIs, optimize SQL performance, integrate third-party platforms, improve code quality, implement testing strategies, and mentor engineers. Collaborate with cross-functional teams in an Agile environment while supporting cloud-native practices, regulatory compliance, and continuous product improvement.

Owns the design, development, testing, deployment, and maintenance of production software. Builds C#/.NET backend services, Angular web applications, and .NET MAUI mobile apps; optimizes SQL Server databases; resolves production issues; improves reliability, security, performance, and observability; writes tests and documentation; participates in code reviews; and translates ambiguous business needs into maintainable technical solutions.

Build scalable backend-heavy services and applications using C# and .NET, while contributing to Angular and TypeScript UI development. Design and develop REST APIs and microservices, work with relational databases, implement automated testing and CI/CD, and ensure system security, scalability, and performance. Preferred work includes event-driven architectures, messaging systems, NoSQL databases, caching, search technologies, and mentoring engineers or leading technical initiatives.

Develop distributed, scalable web applications using the Microsoft technology stack, including C#, ASP.NET MVC, and Web API. Build front-end experiences with HTML5, JavaScript, and Bootstrap; diagnose complex system issues; maintain quality; communicate effectively; and manage project timelines and scope. Agile development familiarity is helpful. The role requires a bachelor’s degree in Computer Science or equivalent experience and 5–7 years of industry experience.

Develop distributed and scalable web applications using the Microsoft technology stack. The developer will work with C#, ASP.NET MVC, Web API, Angular, HTML5, and JavaScript; diagnose complex system issues; collaborate effectively; maintain high quality standards; and manage timelines and scope to complete projects on schedule.

Design and develop software solutions using .NET architecture. Work with microservices and ensure excellent communication within Agile 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.

Senior full-stack .NET developer responsible for analysis, design, implementation, testing and production rollout. Build secure front-end (JS/HTML/CSS), middle-tier services (C#, Node.js), and persistent layers (SQL/NoSQL). Develop REST APIs, apply SOLID/OOP and SOA design, perform code reviews, use automation tools for scalability, and support cloud migration (AWS/Azure). Work in Agile teams and ensure web application security (JWT/SAML/OAuth).

Senior .NET Developer to build the ORCA compliance system. Design and deliver distributed RESTful web/cloud services using ASP.NET/C#, Web APIs, MongoDB and SQL Server, front-end with AngularJS/Bootstrap, and deploy/integrate with AWS and Pivotal platforms. Collaborate with team through full project lifecycle.

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.

Contract .NET/Excel-Access developer to migrate and maintain Excel and Access applications: document functional requirements, design solutions, write VBA/macros, develop and test, deploy to test/UAT/production, and transition applications to client staff. Role requires knowledge of .NET/C#, Oracle, TFS and mortgage program compliance.

Design, develop, test, document, and implement C#/.NET applications per technical specifications. Interpret business requirements, produce architectural and technical documentation, create unit test plans and harnesses, estimate tasks, validate accessibility and secure coding, and collaborate with infrastructure/network/server teams to resolve application issues.