Senior Full Stack Developer

Zelis

Morristown, NJ, United States of America • 8m ago • On-site

Senior

On-site

105,000 - 133,000 USD/yr

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Quick Facts

  • Role: Senior Full Stack Developer (Senior Full Stack Cloud Developer / Software Engineer)
  • Focus: Enterprise web, API, database, cloud, and Snowflake integrations

Description

You will design, develop, integrate, and support modern enterprise applications across Microsoft, Azure, AWS, and Snowflake platforms. The role includes full lifecycle development—from solution design and API integration to cloud deployment, testing, troubleshooting, performance optimization, and production support. You will also leverage agentic AI and AI-assisted development tools while validating outputs for correctness, security, performance, and maintainability.

Responsibilities

  • Design and develop enterprise applications with C# and .NET
  • Build responsive web applications with Angular and TypeScript
  • Design and implement RESTful APIs and integration services
  • Process structured data using JSON and API-based integration patterns
  • Develop and optimize SQL Server 2022 solutions using advanced T-SQL (stored procedures, views, functions, complex queries, performance tuning)
  • Develop, debug, test, and deploy with Visual Studio 2022 and modern source control practices
  • Implement cloud-based applications and services in Azure and AWS (ECS, EC2, Lambda, S3)
  • Create and maintain container images and environment-specific deployment configurations
  • Build data integrations between SQL Server, cloud platforms, APIs, and Snowflake; write optimized Snowflake SQL for ingestion, transformation, and analytical workloads
  • Participate in architecture and technical design discussions
  • Create reusable components, libraries, APIs, and services following established software engineering standards
  • Perform debugging, root-cause analysis, production troubleshooting, and performance tuning
  • Implement logging, monitoring, exception handling, and operational support capabilities
  • Participate in code reviews and promote best practices for maintainability, performance, security, and scalability
  • Collaborate with DevOps/infrastructure teams for automated build, deployment, and release processes
  • Support development, testing, staging, and production environments
  • Create and maintain technical documentation for architecture, APIs, database objects, integrations, and deployments

Requirements

  • 5+ years of professional software development experience
  • 3+ years of hands-on developing experience including C#, .NET, Angular, TypeScript, SQL server and SSIS
  • Experience designing enterprise APIs and integration solutions
  • Experience working in both Azure and AWS environments
  • Experience with cloud-native and distributed application architectures
  • Experience with Snowflake (or another enterprise cloud data platform)
  • Experience working with CI/CD pipelines and automated deployment processes
  • Experience working in Agile/Scrum software development environments
  • Experience supporting business-critical production applications
  • Experience applying secure development practices to cloud and web applications
  • Experience using AI-assisted development tools in a professional engineering environment
  • Bachelor’s degree in Computer Science, Software Engineering, Information Technology, or a related technical discipline (or equivalent professional experience)
  • Visa sponsorship is not available (now or in the future)

Benefits

  • Base salary range: $105,000.00 - $133,000.00
  • 401k plan with employer match
  • Flexible paid time off and holidays
  • Parental leaves
  • Life and disability insurance
  • Health benefits including medical, dental, vision, and prescription drug coverage

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