Senior .NET Developer

Quetica•St. Paul, MN

11h•Hybrid

About The Position

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 client's office in Saint Paul, Minnesota, a minimum of two days per week.

Requirements

Ten (10) years of software development experience
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
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

Responsibilities

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