We are looking for an experienced Senior .NET Developer with strong expertise in Microsoft technologies and AWS Cloud services to design and develop scalable, secure, cloud-native enterprise applications. The candidate will be involved in greenfield development, solution architecture, technical design, and end-to-end application delivery.

Key Responsibilities

- Design, develop, and maintain enterprise applications using C#, .NET Core, and .NET 8.
- Participate in greenfield product development, architecture, and technical decision-making.
- Develop secure and scalable REST APIs and microservices.
- Build and deploy cloud-native applications using AWS services.
- Design and implement database solutions using SQL Server and AWS data services.
- Establish CI/CD pipelines and follow DevOps best practices.
- Ensure application security, performance, scalability, and reliability.
- Conduct code reviews and mentor junior developers.
- Collaborate with architects, product owners, and cross-functional teams.
- Participate in Agile/Scrum ceremonies and technical design discussions.

Mandatory Technical Skills

.NET & Microsoft Technologies

- C#
- ASP.NET Core / .NET Core / .NET 8
- Web API and RESTful Services
- Entity Framework Core (EF Core)
- LINQ
- Dependency Injection
- JWT Authentication and Authorization

AWS Cloud Services

- AWS Lambda




- Amazon API Gateway
- Amazon S3
- Amazon RDS
- DynamoDB
- Amazon SQS / SNS
- AWS CloudWatch
- AWS IAM
- AWS Secrets Manager
- AWS SES

Database

- Microsoft SQL Server
- SQL Query Optimization and Performance Tuning
- Stored Procedures
- Database Design and Data Modeling
- NoSQL / DynamoDB

DevOps & Automation

- Git
- Azure DevOps / GitHub Actions
- AWS CodePipeline / CodeBuild
- CI/CD Pipelines
- Docker and Containerization

Architecture & Design

- Microservices Architecture
- Event-Driven Architecture
- Domain-Driven Design (DDD)
- SOLID Principles
- Design Patterns
- Clean Architecture

Preferred Skills

- AWS ECS / EKS
- AWS Step Functions
- Serverless Architecture
- Terraform / AWS CloudFormation
- Logging, Monitoring, and Observability
- Third-party API and enterprise system integrations
- Healthcare, Insurance, or Financial Domain Experience
- AWS Associate or Skilled Certification

Qualifications

- 8+ years of experience in .NET application development.
- Strong hands-on experience with AWS Cloud services.
- Experience in enterprise-grade application development.
- Good understanding of Agile/Scrum methodologies.
- Strong problem-solving, communication, and technical leadership skills.

📌 Lead Engineer - II_.Net (Chennai)
🏢 Citiustech Healthcare Technology Private
📍 Chennai