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1199 SEIU Logo

Developer III/ Sr. Developer

1199 SEIU

Salary not specified
Sep 12, 2025
New York, NY, US
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The 1199SEIU National Benefit Fund is looking to solve the problem of designing and developing new web-based applications and enhancing existing applications to meet customer requirements and needs.

Requirements

  • Minimum of five (5) years of solid development experience in building and enhancing applications and services using .Net 6.0/7.0/8.0, Microsoft SQL Server 2019/2022
  • Strong experience in building and enhancing SQL server stored procedures, deploying and testing in various environments
  • Experience in C-Sharp.NET 11.0, ASP.NET Core 8.0, ASP.NET Core MVC, building web services, REST Web API, and React Native for Mobile
  • Experience in JavaScript, jQuery, and responsive UI design using Bootstrap
  • Experience with Dynamics 365 customization and integration
  • Familiar with Application Lifecycle Management (ALM) tools like TFS or Azure DevOps
  • Experience in writing unit tests to have 100% coverage, building automated test scripts (ATDD), load testing, and releasing them in production

Responsibilities

  • Responsible for the design and development of new web-based applications and enhancement of existing applications
  • Develop and optimize database programs to support development during all project stages
  • Understand and translate customer’s requirements and needs into technical solutions
  • Translate knowledge from user interaction to generate and maintain proper documentation
  • Participate in weekly meetings and communicate day-to-day with users to compile comprehensive requirements information and provide recommendations and solutions
  • Perform additional duties and projects as assigned by management

Other

  • Bachelor’s degree in computer science or equivalent years of software development and testing experience required
  • Excellent communication skills, both written and verbal, planning and organizational skills
  • Ability to establish and meet target dates; must be able to multitask effectively and handle multiple development projects
  • Ability to build strong relationships with various internal and external sources, including business owners