Senior .NET Developer

Quetica is seeking a highly experienced Senior .NET Developer to support our client in the design, development, and modernization of enterprise applications and cloud-based services. This role requires a seasoned software professional with deep expertise in Microsoft technologies, Azure cloud services, modern front-end frameworks, and enterprise application architecture. The Senior .NET Developer will serve as a key technical contributor throughout the software development lifecycle, leading the design and implementation of scalable, secure, and maintainable solutions using .NET, Azure, and modern web technologies. The selected candidate will collaborate closely with solution architects, business analysts, product owners, and development teams to translate business requirements into technical solutions while providing technical leadership, mentoring, and guidance on development best practices. This position requires strong experience with Azure application development, CI/CD pipelines, API integration, relational database design, and modern architectural patterns such as Clean Architecture and Domain-Driven Design. The ideal candidate will have a proven track record delivering complex enterprise applications, optimizing application performance, and contributing to long-term technology strategy in an Agile environment. This position follows a hybrid work model, with the selected candidate required to work on-site at the client’s office in Saint Paul, Minnesota, a minimum of two days per week. Minimum Qualifications Ten (10) years of software development experience, including at least five (5) years of application development using .NET framework and Microsoft technologies Combined Seven (7) years of experience with the following front-end technologies HTML5, CSS3, JavaScript Seven years' combined experience with one or more of the following frameworks: Angular, React, or Blazor Three (3) years of experience writing applications in Azure cloud and deploying code using CI/CD pipelines Desired Skills Experience collaborating with business and technical stakeholders to translate functional requirements into technical designs Experience working on a mixed business and technical team in a hybrid telework/office setting work environment Strong knowledge of SQL Server, Entity Framework, and performance analysis tools Excellent communication, leadership, and cross-functional collaboration skills Proven ability to manage multiple workstreams in large-scale enterprise projects Three (3) years of experience designing and implementing CI/CD pipelines that automate build, with hands‑on work in API design, microservices architecture, distributed systems, and Azure Application Performance Monitoring Seven (7) years of experience writing automated unit tests Three (3) years of experience with database design and development using SQL Server or Azure SQL Sample Tasks Design, develop, and deploy complex .NET applications and services Design and build Azure app services, Function apps, database and ORM technology Architect applications using Clean Architecture and Domain-Driven Design Design applications with relational databases, data caching, and enterprise-sized data management Oversee code reviews, enforce best practices, and mentor development team members Collaborate with development team, solution architect, business analyst, product owner, and other stakeholders to define technical requirements and solution design Integrate .NET applications with third-party APIs, databases, and cloud services Optimize application performance, scalability, and maintainability across multiple environments Establish and maintain CI/CD pipelines and development workflows Troubleshoot and resolve high-priority production and development issues Provide technical leadership in implementing security and compliance standards Work in an Agile development environment Contribute to architectural decisions, technology selection, and long-term technical planning Provide knowledge transfer and technical documentation to internal teams #J-18808-Ljbffr