Senior .NET Engineer (Platform Team) at Cigna

What You'll Do


Design, build, and maintain backend services and APIs using .NET (ASP.NET Core)
Develop and optimize data access layers using Entity Framework Core
Own services end-to-end: architecture, development, testing, deployment, and monitoring
Build and maintain CI/CD pipelines and automated deployment processes
Implement and manage Infrastructure-as-Code (IaC) for application and environment provisioning
Work extensively with on-premises Windows Server environments, including deployment and runtime management on virtual machines
Collaborate with product and delivery teams to create reusable technical solutions
Contribute to improving engineering standards, automation, and system reliability


What You'll Bring (Required)


Bachelor's degree in IT or related field.
5 - 7+ years of experience in software engineering, with strong backend focus
Deep hands-on experience with .NET technologies, including: ASP.NET Core (Web APIs) and Entity Framework Core
Proven experience building and maintaining production-grade backend systems
Hands-on DevOps experience, including: CI/CD pipeline implementation and management and Infrastructure-as-Code (IaC) using tools such as Terraform, ARM, Bicep, or similar
Solid experience working in on-premises environments (Windows Server)
Working knowledge of Agile practices (e.g., sprint ceremonies, backlog refinement, stand-ups)
Experience with Git-based version control


Nice to Have


Experience with hybrid or cloud platforms (e.g., Microsoft Azure)
Exposure to SAFe (Scaled Agile Framework)
Experience building shared platforms or internal developer tooling


Key Expectations


Strong engineering depth in .NET combined with practical DevOps/IaC capability
Comfortable working across application code and infrastructure layers
Ability to deliver in structured Agile environments
Experience supporting and evolving on-premise enterprise systems