Web Application Developer

The Johns Hopkins University Applied Physics Laboratory (APL), a national leader in scientific research and development, is located midway between Baltimore and Washington, DC.

Job Summary:

Develop custom web applications for various internal and external customers in a rapid application development environment for the Agile Software Development Team. Work in close communication with customers and other team members to achieve results. Position includes a mix of new development and maintenance for existing custom applications, with a focus on C#, ASP.NET MVC, HTML, and JavaScript.


  • Design, develop, test, and deploy custom-built applications in a team-based environment, following existing architecture and coding guidelines (70%)
  • Interact with service managers, team members, and customers to provide application support including technical analysis, requirements gathering, problem solving; and other duties as assigned (30%)

Note: This job summary and listing of duties is for the purpose of describing the position and its essential functions at time of hire and may change over time.Required Qualifications:

  • BS in Computer Science, Information Systems, or other engineering degree, or equivalent combination of education and professional work experience
  • 2 years C# and .NET development with emphasis on ASP.NET MVC
  • 2 years object-oriented coding experience
  • 4 years application development experience
  • Proficient with JavaScript and jQuery
  • Possess detailed and clear understanding of HTML and Cascading Stylesheets (CSS)
  • Experience with Visual Studio (2013 or greater preferred)
  • Ability and desire to learn new skills and technologies quickly
  • Excellent written, oral, and interpersonal communication skills
  • Excellent analytical and problem solving skills; and ability to decompose complex programming tasks
  • Ability to balance multiple tasks with high attention to details
  • A customer service perspective: be responsive and continuously provide value to our customers

Desired Qualifications:

  • Experience with:
  • Bootstrap or other responsive CSS frameworks
  • Entity Framework against a SQL Server database
  • Automated unit testing
  • Creating secure applications
  • Dependency injection
  • .NET technologies: AutoMapper, AutoFac, ASP.NET WebAPI, Entity Framework Code First
  • Some experience with popular JavaScript libraries: React, Angular, Vue, Knockout, Node, etc.
    • Microsoft Team Foundation Server (TFS) GIT
    • ASP.NET Core
    • Agile methodologies

Special Working Conditions:

Occasional weekend and other after-hours work required to meet critical project/work-related business needs.


APL offers a comprehensive benefits package including a liberal vacation plan, a matching retirement program, significant educational assistance, a scholarship tuition program for staff with dependents, and competitive salaries commensurate with skills and experience. For more information about our organization, please visit our web site at www.jhuapl.edu.

Equal Employment Opportunity:

Johns Hopkins University/Applied Physics Laboratory (APL) is an Equal Opportunity/Affirmative Action employer that complies with Title IX of the Education Amendments Acts of 1972, as well as other applicable laws. All qualified applicants will receive consideration for employment without regard to race, color, religion, sexual orientation, gender identity, national origin, disability, or protected Veteran status.

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