.NET Application Developer

.NET Application Developer
ERIE, PA


Location: ERIE, PA- 100% onsite FROM DAY 1
Duration: 6 months


Job Description: .NET Application Developer - Microservices & AWS Modernization
Experience: 8-10 Years
Role: Senior .NET Application Developer / Technical Lead
Primary Skills: .NET, Microservices, AWS, REST APIs, Containers, CI/CD
Role Summary
We are looking for an experienced .NET Application Developer with 10-12 years of experience in enterprise application development and modernization. The candidate will be responsible for modernizing legacy/monolithic .NET applications into cloud-native microservices and migrating/replatforming applications to AWS.
The ideal candidate should have strong hands-on development experience, application modernization expertise, microservices architecture knowledge, and practical experience with AWS cloud services, containerization, CI/CD, and production-grade application development.
Key Responsibilities
• Analyze existing monolithic .NET applications and identify appropriate modernization and service decomposition opportunities.
• Design and develop microservices using .NET / ASP.NET Core.
• Refactor and migrate legacy .NET applications to modern .NET platforms.
• Decompose monolithic application functionality into independently deployable services based on appropriate business/domain boundaries.
• Design and develop RESTful APIs and service integrations.
• Modernize and migrate/replatform applications to AWS cloud.
• Develop containerized applications using Docker and deploy through appropriate AWS container services.
• Work with AWS services such as ECS/EKS, EC2, Lambda, API Gateway, S3, RDS, DynamoDB, SQS/SNS, CloudWatch, IAM, and Secrets Manager, as applicable to the solution.
• Implement scalable, resilient, secure, and observable microservices.
• Support database modernization and data migration strategies associated with application decomposition.
• Implement asynchronous and event-driven integration patterns where appropriate.
• Build and enhance CI/CD pipelines for automated build, testing, security validation, and deployment.
• Collaborate with architects, product owners, business SMEs, DevOps, cloud/platform teams, and application teams.
• Participate in technical discovery, code assessment, dependency analysis, architecture discussions, code reviews, testing, and production deployment.
• Troubleshoot application performance, integration, deployment, and production issues.
• Ensure adherence to enterprise standards for security, logging, monitoring, coding, testing, and cloud architecture.
• Mentor junior developers and provide technical guidance to the engineering team.
Required Technical Skills
• 10-12 years of software development experience with strong hands-on expertise in C# and .NET.
• Strong experience with ASP.NET Core, Web API, Entity Framework / EF Core, and modern .NET development.
• Proven experience in monolith-to-microservices modernization.
• Experience with legacy application assessment, refactoring, replatforming, and modernization.
• Hands-on experience developing and deploying applications on AWS.
• Strong knowledge of:
o Microservices architecture and design patterns
o REST APIs
o Domain-driven design concepts
o Docker and containerization
o Kubernetes/EKS or ECS
o Messaging and asynchronous processing
o SQL and relational databases
o NoSQL concepts
o Authentication and authorization
o Application caching
o Logging, monitoring, and observability
• Experience with CI/CD tools such as Jenkins, GitHub Actions, AWS CodePipeline, or equivalent.
• Experience with infrastructure automation/IaC such as Terraform or AWS CloudFormation is preferred.
• Strong understanding of cloud security, IAM, secrets management, networking, and application configuration.
Soft Skills
• Strong analytical and problem-solving skills.
• Ability to understand complex legacy applications and translate them into modern architecture.
• Strong verbal and written communication.


Role Descriptions: .NET Modernization
Essential Skills: .NET Modernization
Desirable Skills:
Keyword:
Skills: Digital : Web Modernization Concepts~Assembler Programming for Modernization
Experience Required: 4-6