GIS Application Developer

Location: Harrisburg PA
Position Type: Mostly Remote
Hybrid Schedule: Onsite as needed
Contract Length: Long-term with annual extensions

Position Overview:
This role serves as a mid-level Developer supporting the design and development of a large-scale, enterprise web application. The position works under the guidance of a Technical Lead and Application Architect to build, enhance, and maintain system functionality using modern front-end, back-end, GIS, and reporting technologies.

Duties:

• Design, develop, test, and document application features and enhancements using Angular, Java, and Spring Boot.

• Build responsive, mobile-first user interfaces leveraging Angular (v14+), Material Design libraries, and responsive UI principles.

• Develop and integrate RESTful APIs to support application functionality and system interoperability.

• Implement and maintain GIS integrations using Esri ArcGIS technologies, including the ArcGIS Maps API/SDK for JavaScript.

• Design and develop geocoding and geoprocessing services, including support for linear referencing systems and spatial data workflows.

• Administer and support ArcGIS Enterprise Server and ArcGIS Online/Hub/Community environments.

• Develop and maintain Power BI dashboards and enterprise-level reporting integrations.

• Design reporting and data layers using PostGIS and PostgreSQL (or comparable database platforms).

• Utilize ArcGIS tools and extensions such as ArcPro/ArcObjects, GeoEvent Processor, Velocity, Experience Builder, Survey123, Field Maps, and WebEOC plugins.

• Apply design patterns and SOLID principles to ensure scalable, maintainable, and high-quality code.

• Write and maintain automated tests using frameworks such as Jasmine, Karma, and JUnit.

• Use development tools such as VS Code or Eclipse and manage source control through Git/Azure Repos.

• Ensure applications meet digital accessibility standards, including Section 508, ADA, and WCAG 2.1 AA requirements.

• Apply WAI-ARIA authoring guidelines and optimize solutions for platform accessibility features across web and mobile technologies.

• Incorporate accessibility considerations into design and development workflows, including testing and “definition of done” criteria when applicable.

Required Skills:

• 8+ years of experience developing front-end applications using Angular (preferably Angular 14 or higher).

• 8+ years of experience designing responsive user interfaces using Bootstrap (optional) and Material Design libraries; prior jQuery experience is a plus.

• 8+ years of experience with back-end development, including RESTful API design, integration, and GIS integrations.

• 8+ years of experience using testing frameworks such as JUnit.

• 8+ years of experience developing data and reporting solutions, including Power BI dashboards, enterprise-level reporting integrations, and relational/spatial databases such as PostGIS and PostgreSQL (or equivalent).

• 8+ years of experience working with development tools and environments including ArcGIS Online (AGOL), ArcGIS Extension plugins for WebEOC, VS Code or Eclipse, and Git/Azure Repos for source control and collaboration.

• Experience using the Esri ArcGIS Maps API/SDK for JavaScript.

• Experience with Esri technologies including ArcPro/ArcObjects, GeoEvent Processor, Velocity, Experience Builder, Survey123, and Field Maps.

• Experience administering ArcGIS Enterprise Server and ArcGIS Online/Hub/Community environments.

• Experience designing and developing geocoding and geoprocessing services.

• Knowledge of Esri ArcSDE and multi-user versioning using state trees and branch versioning.

• Knowledge of linear referencing systems and methods, including Esri Roads and Highways and Oracle Locator/Spatial.

• Knowledge of responsive and mobile-first development principles.

• Knowledge of design patterns and SOLID principles.

• Knowledge of digital accessibility and disability inclusion best practices.

• Knowledge of digital accessibility regulations, including Section 508 and ADA.

• Knowledge of WCAG 2.1 AA requirements.

• Experience designing for multiple platform technologies, including HTML, CSS, JavaScript, iOS, and Android.

• Experience applying WAI-ARIA authoring guidelines and accessibility best practices.

• Experience optimizing applications for platform accessibility features across web and mobile platforms.

• Experience developing digital products that comply with accessibility standards.

Preferred Skills:

• Experience using Jasmine and Karma testing frameworks.

• Experience incorporating accessibility testing into the development process.

• Experience building digital products where accessibility compliance is a defined part of the “definition of done.”