What are the responsibilities and job description for the Senior Dotnet Developer position at R Systems?
** Only Local Sacramento, CA Candidates are encouraged to apply **
** Healthcare & Public Sector Experience is Preferred **
Senior .NET Full Stack Developer (Public Sector, Healthcare, AWS)
Summary
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.
Key Responsibilities
- Design, develop, and maintain full-stack applications using .NET Core/.NET 6 , C#, Web API, Entity Framework, and SQL Server.
- Develop front-end interfaces using Angular/React, JavaScript/TypeScript, HTML5, CSS3, and modern UI frameworks.
- 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
- SQS/SNS, CloudWatch, CloudFormation
- 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.
Required Skills & Experience
- 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/DynamoDB)
- API Gateway, CloudWatch, IAM, VPC, SQS/SNS
- CI/CD using AWS CodePipeline, CodeBuild, GitHub 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 (CloudFormation/Terraform), unit testing frameworks.
Good to Have
- Experience with Kubernetes (EKS).
- Experience with reporting/analytics tools.
- AWS Certifications (Developer Associate, Solutions Architect Associate/Professional).
- Experience with NoSQL databases (MongoDB, DynamoDB).