Demo

Application Developer, Front-End

Diversified Systems.com
Harrisburg, PA Full Time
POSTED ON 4/1/2026
AVAILABLE BEFORE 4/30/2026
Mostly Remote

Description:

Diversified Systems is searching for an Application Developer, Front-End who will primarily serve as mid-level Developer and will assist with design and development of the new PA Unified Crash System. Candidates will work under the direction of the project's Technical Lead and Application Architect to write, test, and document code to implement system features and enhancements using Angular, Java, Spring Boot, GIS, and Azure Function technologies.

Responsibilities:

  • 8 years of experience in front-end frameworks and UI technologies including Angular (preferably Angular 14 or higher).
  • 8 years of experience in responsive UI design with Bootstrap (optional) and Material Design libraries, with prior experience with jQuery as a nice-to-have.
  • 8 years of experience in back-end development including RESTful APIs design and integration and GIS integrations.
  • 8 years of experience with testing frameworks including jUnit, Jasmine, and Karma.
  • 8 years of experience with PostGIS-based data design for reporting layers and PostgreSQL or any other database management system.
  • 8 years of experience working with AGOL, the ArcGIS Extension plugin for WebEOC, VS Code or Eclipse or Spring Tool Suite, and Git or Azure Repos for source control and collaboration.
  • Experience with the Esri ArcGIS Maps API/SDK for JavaScript is required.
  • Knowledge and experience with ArcPro/ArcObjects, GeoEvent Processor, Velocity, Experience Builder, Survey123, and Field Maps is required.
  • Experience with ArcGIS Enterprise Server and ArcGIS Online/Hub/Community as an administrator is required.
  • Experience in designing and developing geocodes and geoprocessing services is required.
  • Knowledge of Esri ArcSDE and multi-user versioning with state trees or branch versioning is required.
  • Knowledge of linear referencing systems and methods, Esri Roads and Highways, and Oracle Locator/Spatial is required.
  • Knowledge of responsiveness and mobile-first development is required.
  • Knowledge of design patterns and SOLID principles is required.
  • Knowledge of digital accessibility and disability inclusion is required.
  • Knowledge of regulations related to digital accessibility (e.g., Section 508, ADA) is required.
  • Knowledge of WCAG 2.1 AA requirements is required.
  • Experience designing for platform technologies including HTML, CSS, JavaScript, iOS, and Android is required.
  • Experience applying WAI-ARIA authoring guidelines and best practices is required.
  • Experience optimizing for accessibility features of platforms including HTML, iOS, and Android is required.
  • Experience developing digital products that comply with accessibility standards is required.

Preferred Qualifications:

  • Experience incorporating accessibility tests into the development process.
  • Experience building digital products where compliance with accessibility standards is part of the "definition of done.”

About Diversified Systems

Founded in 1990, Diversified Systems is an award-winning Technology Services corporation providing all levels of IT project consulting services nationwide. DSI is headquartered in Columbus, Ohio with regional offices in the American Midwest and East Coast. We offer our consultants a number of flexible and competitive compensation benefit packages.

Diversified Systems is committed to the principles of equal employment. We are committed to complying with all federal, state, and local laws providing equal employment opportunities, and all other employment laws and regulations.

Diversity, Equity and Inclusion

DSI values authenticity and is committed to making sure our employees and partners are valued and respected. At DSI, we believe building a diverse culture is important because we know when people work together, we can achieve better results as a team. DSI realizes that everyone comes from various backgrounds. We celebrate these differences because our employees are our greatest asset as we strive to best meet the needs of those we serve. As part of our ongoing efforts, DSI is focused on advancing equality, diversity, and inclusion by setting high standards to continually evolve our culture. This includes but is not limited to recruiting, community involvement, client delivery, and career development.

Salary.com Estimation for Application Developer, Front-End in Harrisburg, PA
$117,173 to $147,256
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