.Net Developer with Government Experience - Onsite in New York City

Government experience is an absolute must.

This client is only considering candidates who already reside in the New York City area.

This position is onsite in New York City and is a multi-year engagement.

Client is responsible for managing how contractors and utility companies apply for permits when they do work on roadways, sidewalks, and highways. This drives the need for a senior application developer to design, develop and deploy modern, web-based accessible systems that have a secure client-facing interface plus a back-office system for managers to review, edit, charge, approve or deny permits or licenses, determine if the client is selecting the right type of permit or license to meet their needs, assign an employee to inspect the location to determine if the permit and license request is accurate and ensure they are system features that allow client and the contractors and restaurants to have bi-directional communication within the system and exchange necessary city / stare / federal / insurance documents. These systems also contain features that minimize the amount of construction conflicts that occur since contractors, utility companies and other agencies can all be working on the same street at the same time. Client managers also need system features that will allow them to determine the location of an asset, determine the last time the asset was inspected, is a new inspection required, assign crews to repair / replace / reconstruct the asset and select which materials, vehicles and equipment will be used to ensure the asset is always in a state-of good-repair to ensure a safe environment for all of City's pedestrians, bicyclist and drivers. All of these systems will require online maps built within each application along with security features to ensure compliance with cyber security policies.

Responsibilities:
• Perform detail and quality application design, database design, coding, and unit/ integration/ performance testing.
• Develop and integrate complex application modules using .NET 4.8, ASP.NET , .NET Core, C#, n-Tier architecture, SOA, XML/JSON-based web services and application development tools such as Microsoft Visual Studio 2019/2022 and SQL Server Management Studio.
• Implement web-based user interfaces in .NET using Razor/MVC4/MVVM architectural patterns, AJAX, HTML5, CSS and JavaScript (React, Angular or Backbone).
• Develop relational database design, normalization, T-SQL/stored procedures and manage databases in SQL Server 2017/2019 and Azure SQL.
• Build secure web applications with user authentication and role-based access control.
• Institute graphic user interfaces following user experience and accessibility best practices.
• Generate reports using Microsoft SQL Reporting Services (SSRS), ad-hoc reporting, and data migration/transformation using SSIS packages.
• Perform configuration management, continuous integration, and version control utilizing Azure DevOps.
• Implement web services using Windows Communication Foundation (WCF).
• Adhere to Software Development Life Cycle (SDLC) processes. The following methodologies are currently being used for different projects Waterfall, RUP and Agile.
• Create/update design artifacts and deliverables such as use case diagrams, application architecture, class/sequence diagrams and high-level/detailed design documentation.
• Collaborate with business analysts, quality assurance specialists and application developers during the design, development, testing, and implementation of applications.
• Understand high level application architecture/design, network design, performance constraints and security frameworks.
• Participate in and contribute to formal/informal technical reviews and presentations.
• Research, present and/or make recommendations on technical issues.

Minimum Requirements/Additional Provisions:
Minimum of 5 years' experience with writing application software, data analysis, data access, data structures, data manipulation, databases, programming, testing and implementation, technical and user documentation, software conversions; environments include but are not limited to mainframe, mid-range, personal computers, laptop; available to assist and/or lead in the design of program specifications and the implementation of software solutions.

Preferred Skills/Experience:
• BA/BS Degree or equivalent, in a technology related field or other degree preferred.
• Advanced-level certifications and/or training in application development.
• Microsoft Certified Professional.
• 5 years of total experience in object-oriented design, development, testing and deployment of mission critical business applications, at least 6 of which are in a web/client-server environment.
• 3-5 years of hands-on development experience with projects involving Microsoft.NET and SQL Server technologies for web, web service and desktop application development using C#.NET, ASP.NET , ADO.NET , HTML 5, AJAX, WPF, WCF, MVC, jQuery, Entity Framework, LINQ, Redux, Visual Studio 2017/2019/2022.
• 4+ years of relational database design, normalization, T-SQL, stored procedures, SQL Server 2014/2017/2019, SSIS packages, data modeling tools (ERwin/ERStudio).
• Proficiency in data analysis and ad-hoc reporting using T-SQL, Microsoft SQL Server, and Microsoft Excel.
• Expertise in map-based application development and GIS mapping software, with ESRI ArcGIS Desktop, ArcGIS Online, Open Layers and/or Mapbox preferred.
• Advanced working knowledge of Microsoft Team Foundation Server, Azure DevOps, or a similar application lifecycle management tool.
• Experience in UML/Rational tools or other design tools.
• Strong communication, presentation, and leadership skills.
• Proficient in JavaScript frameworks: React, Backbone, and Angular.
• Proficient in responsive design frameworks, such as Bootstrap.
• Proficient in Wireless/Mobile/Disconnected architecture/applications.
• Experience with online payment implementation / integration.
• Working knowledge in Business Intelligence and Decision Support Systems.
• Prior experience working in federal, state, or local government projects