Need Local Candidate - Senior .Net Application Developer -New York, NY - Onsite 5 days / week

Sedna Consulting Group - New York, NY

Full-time - Senior

New York, NY

Professional, Scientific, and Technical Services

About the position

The Senior .Net Application Developer will be responsible for designing, developing, and implementing complex application modules using various .NET technologies. This role requires a strong background in application and database design, coding, and testing, with a focus on creating secure web applications and adhering to best practices in user experience and accessibility. The position is onsite in New York, NY, and is a 2-year contract role.

Responsibilities

• Perform detailed 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/MVC5/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 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, including Waterfall, RUP, and Agile methodologies.
• 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.

Requirements

• Overall 10+ years of IT experience with a minimum of 8 years' experience in writing application software, data analysis, data access, data structures, data manipulation, databases, programming, testing, and implementation.
• 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.
• AWS Certification or Azure Cloud Certification.
• 8 years of experience in object-oriented design, development, testing, and deployment in a web/client-server environment.
• 6-7 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, Microservices, jQuery, Entity Framework, LINQ, Visual Studio 2017/2019.
• 6+ 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 analytical, decision-making, and problem-solving skills.
• Good communication, presentation, and leadership skills.
• Proficient in JavaScript frameworks: React, Backbone, and Angular.

Nice-to-haves

• Experience with GIS mapping software such as ESRI ArcGIS Desktop or Mapbox.
• Familiarity with additional programming languages or frameworks.