Senior Dotnet Developer Job at Crescens Inc., Hamilton, NJ

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  • Crescens Inc.
  • Hamilton, NJ

Job Description

Title: Senior Full Stack .NET Developer

Location: Hamilton, NJ (Hybrid)

Duration: 12+ months

Notes:

Round 1, in-person interview

Will start 100% on site for 30 days & move to hybrid 3 days onsite 2 days remote

Key Responsibilities

  • Design, develop, and maintain scalable web applications using Angular 14+ and .NET 8+
  • Build and consume RESTful APIs and microservices in a cloud-native environment
  • Develop and optimize backend services integrated with AWS RDS for SQL Server
  • Deploy and manage applications using AWS ECS Fargate
  • Build and maintain CI/CD pipelines using AWS CodePipeline and native AWS DevOps tools
  • Integrate AI/ML capabilities into applications using AWS services (e.g., SageMaker, Comprehend, Rekognition, or custom ML models)
  • Develop dashboards and reporting solutions using Power BI
  • Ensure application security, compliance, and data protection standards are met
  • Troubleshoot, debug, and upgrade existing systems

Technical Skills (Must Have)

Microsoft .NET Stack

  • 7+ years of C# programming experience (C# 10+)
  • 5+ years of .NET Core / .NET 6/7/8 experience
  • 5+ years of ASP.NET Core Web API development
  • 5+ years of Entity Framework Core
  • Strong understanding of LINQ and async/await patterns
  • Experience with Dependency Injection and IoC containers
  • Knowledge of design patterns (Repository, Factory, Strategy, SOLID principles)

Frontend Development

  • 3+ years of Angular 14+ OR React 18+ experience
  • 3+ years of TypeScript
  • Proficiency in HTML5, CSS3, SASS/LESS
  • Experience with responsive design and mobile-first approach
  • State management (NgRx, Redux, or similar)
  • RESTful API consumption
  • Understanding of WCAG 2.1 accessibility standards

Database

  • 5+ years of SQL Server 2019+
  • Strong T-SQL/PL-SQL skills (stored procedures, functions, triggers)
  • Database design and normalization expertise
  • Query optimization and performance tuning
  • Entity Framework Core migrations
  • Experience with database versioning and deployment

Cloud Platform

  • 2+ years of AWS experience
  • AWS: EC2, Lambda, RDS, SQS, S3, ECS Fargate, CodePipeline
  • Cloud-native application design
  • Understanding of serverless architecture patterns
  • Cloud security best practices

DevOps

  • Git version control (branching, merging, pull requests)
  • CI/CD pipeline experience (AWS CodePipeline OR GitHub Actions)
  • Docker containerization
  • Unit testing frameworks (xUnit, NUnit, MSTest)
  • Automated testing strategies

Professional Experience (Must Have)

  • 8+ years of professional software development experience
  • 5+ years of .NET/C# development
  • 3+ years of full stack development (frontend + backend)
  • 2+ years of AWS cloud platform experience
  • Experience with large-scale enterprise applications (1M+ lines of code)
  • Experience with mission-critical systems (99.9%+ uptime requirements)
  • Led or participated in application modernization projects
  • Experience with Agile/Scrum methodologies
  • Participated in full SDLC from requirements to production

Required skills:

  • C# Programming Experience
  • .NET Core / .NET 6/7/8/10 Experience
  • .NET REST/WEB API Development Experience
  • Entity Framework Core and LINQ and async/await patterns Experience
  • Dependency Injection, IoC containers and Design Patterns Experience
  • Angular 14+, Typescript and Node.js experience
  • Strong T-SQL/PL-SQL skills (stored procedures, functions, triggers) in SQL Server Database
  • Experience with database versioning and deployment
  • Git version control (branching, merging, pull requests)
  • Docker containerization and CI/CD pipeline experience (AWS CodePipeline or GitHub Actions)
  • AWS cloud native applications (S3, SNS, SQS, ECS, RDS, EC2, Lambda)

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