Senior .NET Full-Stack Engineer: Cloud, APIs & Modernization

Insight Global; Woonsocket (RI); On-site; USD 120,000 - 160,000; Full time

Job summary

Insight Global is seeking a senior backend .NET engineer to design, develop, and modernize scalable web services and APIs powering member and claims experiences across web and mobile.

The role involves collaborating with product, architecture, and UX teams in an Agile environment, leveraging Azure, CI/CD, and AI-assisted tooling to deliver secure, high-performance solutions while modernizing legacy applications.

Qualifications

• 10+ years of full-stack .NET web development experience with ASP.NET Core and .NET Framework.
• Strong hands-on experience with C#, ASP.NET, Entity Framework, MVC, Web Forms, Web APIs, and SQL Server.
• Experience building and supporting enterprise web applications, APIs, and system integrations.
• Strong understanding of application infrastructure, including IIS, DNS, IP networking, SSL certificates, source control, and CI/CD pipeline troubleshooting.
• Expertise in modern web application architecture, including event-driven systems, cloud-based solutions, integrations, and automated testing practices.
• Advanced SQL Server development skills, including database design, query optimization, stored procedures, and PL/SQL/T-SQL development.
• Experience with modern front-end frameworks such as Angular, React, or Blazor.
• Strong knowledge of REST APIs, JSON/XML, and application architecture patterns.
• Proven ability to write scalable, maintainable, and high-performance code.
• Experience working in Agile, SAFe, and/or Waterfall environments.
• Some experience leveraging AI-powered development tools such as GitHub Copilot, Claude, or similar technologies to improve developer productivity and code quality.
• Azure cloud, GitHub, and Azure DevOps CI/CD experience.
• Experience with .NET MAUI for cross-platform desktop and mobile application development.
• Knowledge of web application security best practices.
• Microsoft certifications preferred.
• Healthcare or insurance industry experience, including HIPAA, PHI, and PII compliance.

Responsibilities

• Design, develop, and enhance scalable backend services, APIs, and integrations powering web and mobile apps.
• Support a multi-year digital transformation focused on modernizing member-facing web and mobile experiences.
• Collaborate with product, architecture, UX, and engineering to deliver secure, high-performing solutions.
• Modernize legacy .NET apps and contribute to cloud-enabled, event-driven architectures.
• Troubleshoot issues across the full stack, including CI/CD pipelines and infrastructure.
• Participate in Agile ceremonies, code reviews, and testing to drive continuous improvement.

Skills

Full-stack .NET

C#

ASP.NET Core

MVC/Web API

SQL Server

REST APIs

Azure

Azure DevOps

Front-end frameworks

Agile/SAFe

Security best practices

Tools

GitHub

CI/CD

IIS

Azure DevOps

SQL Server

Job description

Insight Global is seeking a senior backend .NET engineer to design, develop, and modernize scalable web services and APIs powering member and claims experiences across web and mobile.

The role involves collaborating with product, architecture, and UX teams in an Agile environment, leveraging Azure, CI/CD, and AI-assisted tooling to deliver secure, high-performance solutions while modernizing legacy applications.