Senior Gis Application Developer

Job Description
The Philadelphia Water Department (PWD) serves the greater Philadelphia region by providing integrated water, wastewater, and stormwater services. This position supports GIS operations and analytics of PWD, and reports to the GIS Manager. The senior developer is responsible for the design, implementation and development of the multi-tiered enterprise GIS system maintained by the Philadelphia Water Department’s GIS unit. This person helps steer the design and implementation of the overall architecture of the application suite at the Philadelphia Water Department which includes off-the-shelf software components, and custom developed applications. This person is also actively involved in the in-house development of software components in support of low-level system administration tasks, middle-tier web service components, and front-end application development for web and mobile environment.
Essential Functions
Responsible for the development and maintenance of PWD web and ArcGIS Online applications.
Will help coordinate the implementation of short- and long-term projects, objectives, policies and procedures for the production and maintenance of all enterprise geospatial application development related projects.
Develop software – primarily for the web, but also for data ETL processes and system admin tools.
Develop and maintain enterprise web services that support mobile solutions and rich internet applications
Design and edit custom queries, scripts, macros and other methods to meet customer needs.
Proactively identify application inefficiencies and propose solutions.
Identify, create, and maintain development frameworks and code libraries.
Work closely with the team members to develop quality assurance documentation and test plans.
Optimize application delivery and performance, and continuously improve system availability.
Competencies, Knowledge, Skills and Abilities
Knowledge of ArcGIS Server product suite (10.0 and up) and strong knowledge of ArcGIS Server client APIs is preferred.
Mobile-optimized web application development experience using JavaScript and libraries like jQuery, the ArcGIS JavaScript API and MV* frameworks.
Strong programming, using C#, or VB.NET, JavaScript and Python, including working knowledge of design patterns, threading, delegation, and event-handling models.
Experience consuming and creating APIs with RESTful design patterns Strong data modeling skills, and experience with querying relational databases such as SQL Server or Oracle.
Working knowledge of IIS web server administration:
application pool tuning, SSL encryption, ASP.NET configuration
Demonstrated experience with programming low-level applications in support of Windows system administration such as windows services, .Bat scripting, console projects.
Preferred Skills:
ArcGIS Enterprise 10.6 and later
SQL Server 2016 &
later
Feature Manipulation Engine (FME)
Windows Server 2019, IIS 7 and above
Concepts:
Application Architecture
Application Lifecycle Management
Agile Methodologies
RESTful Web Services
Information Architecture
Web standards
Geographic Information Systems