Senior Dotnet Developer

Only Local Sacramento, CA Candidates are encouraged to apply.

Healthcare & Public Sector Experience is Preferred.

We are seeking an experienced Senior .NET Full Stack Developer with strong expertise in designing and building secure, scalable applications using Microsoft .NET technologies. The ideal candidate should have hands‑on experience working in Public Sector and Healthcare environments, along with solid proficiency in AWS cloud services
.

• Design, develop, and maintain full-stack applications using .NET Core/.NET 6+, C#, Web API, Entity Framework, and SQL Server.
• Architect and implement RESTful APIs, microservices, and enterprise‑grade integrations.
• Build and deploy cloud‑native applications on AWS, using services such as:
• AWS Lambda, API Gateway, ECS/EKS, EC2
• S3, RDS, DynamoDB
• Cognito, IAM
• Implement secure authentication and authorization mechanisms (OAuth2, JWT, SSO).
• Work with cross‑functional teams including Product Owners, Business Analysts, and QA.
• Participate in all stages of SDLC—requirements, design, coding, testing, deployment.
• Perform code reviews and mentor junior developers.
• Troubleshoot and optimize application performance, scalability, and reliability.

• 7–10+ years of hands‑on experience in .NET / C# development.
• Strong experience with .NET Core/.NET 5+, Web API, MVC, Microservices.
• Proficient in front‑end development with React/Angular.
• Strong database skills with SQL Server, query optimization, and stored procedures.
• Solid experience with the AWS ecosystem, including:
• Serverless (Lambda), Containerization (ECS/EKS), Storage (S3), Databases (RDS/Dynamo
  
  DB)
• API Gateway, Cloud Watch, IAM, VPC, SQS/SNS
• CI/CD using AWS Code Pipeline, Code Build, Git Hub Actions, or equivalent
• Experience in Public Sector and Healthcare domains, with understanding of:
• Government security standards and compliance‑driven development
• Familiarity with containerization (Docker), Infrastructure as Code (Cloud Formation/Terraform), unit testing frameworks.

• Experience with Kubernetes (EKS).
• Experience with reporting/analytics tools.
• AWS Certifications (Developer Associate, Solutions Architect Associate/Professional).
• Experience with No
  
  SQL databases (Mongo
  
  DB, Dynamo
  
  DB).

Mid‑Senior level

Full‑time

Consulting

IT Services and IT Consulting

Referrals increase your chances of interviewing at R Systems by 2x.

• Vision insurance
• Medical insurance
• Pension plan
• 401(k)