Demo

Senior Application Developer

Jobs via Dice
Harrisburg, PA Full Time
POSTED ON 5/30/2026
AVAILABLE BEFORE 6/27/2026
Dice is the leading career destination for tech experts at every stage of their careers. Our client, Prexel LLC, is seeking the following. Apply via Dice today!

The candidate should have all the following requirements:

  • IT expertise in the development and support of large, complex, mission-critical enterprise software systems
  • Provide a highly stable and supportable environment, improving all aspects of the Enterprise system
  • Provide ongoing assessment of the operational state of the network, compute, and security operations, and drive continuous improvements
  • Continuously evaluate the evolving needs of the Enterprise systems and ensure sufficient capacity is planned and in place to meet the needs of the agencies and customers
  • Lead the identification and mitigation of risks, troubleshoot, and provide resolution to complex end-to-end scenarios involving multiple external agencies, products, protocols, networks and technology stacks
  • Develop and document standards, policies, processes, roles, and responsibilities to support the operations
  • XML Schema Mastery: Expert-level proficiency in XSD (XML Schema Definition), including the ability to navigate and extend the NIEM core and individual justice domain schema
  • Transformation Logic: Extensive experience with XSLT 2.0/3.0 and XPath for mapping legacy GJXDM elements to their corresponding NIEM components
  • Tooling Proficiency: Hands-on experience with NIEM-specific tools, such as the Altova XMLSpy for schema management
  • Maintain and enhance documentation of architecture, infrastructure, and system troubleshooting methods
  • Develop, measure, and maintain KPI s for the core network, compute, and security operations and supporting reports, dashboards, and executive summaries
  • Unique combination of expertise in Solution Management applications
  • Understanding of OO concepts and design patterns
  • Good understanding of TFS, build and deployment process
  • Problem solving and critical thinking
  • Must be able to work independently
  • Can communicate effectively with multiple team members at a given time
  • Strong team-building, vendor and customer relations skills

Required Skills And Experience

  • Required: 4 Year college degree
  • Required: .NET Framework (1.1 4.6.x) 5 years
  • Required: .NET Core 2 years
  • Required: ASP.NET 5 years
  • Required: After-hours support
  • Required: C# 5 years
  • Required: WCF Web Services 5 years
  • Required: Object Oriented Development 5 years
  • Required: Web API 2 year
  • Required: MS SQL Server 5 years
  • Required: Visual Studio 5 years
  • Required: IEPD Lifecycle Management: Proven track record of developing and documenting IEPD according to the NIEM specification 3 years
  • Required: ESB Migration: Experience refactoring custom client interfaces and web services (SOAP/REST) to consume NIEM-conformant messages without breaking downstream legacy consumers 3 years
  • Namespace Management: Ability to manage XML namespaces and versioning strategies to ensure backward compatibility during a multi-phased migration 3 years
  • Required: Broad experience in software development including coding, testing, deployment and maintenance of applications developed on Microsoft stack - 6 years
  • Required: Experience maintaining and extending technical documentation 5 years
  • Required: Understanding and working experience with Microsoft SQL Server 5 years

NICE TO HAVE: Experience with Azure

Salary.com Estimation for Senior Application Developer in Harrisburg, PA
$108,645 to $134,183
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