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.”