Senior .Net Applications Developer

AVER•Washington, DC

3d•$130,000 - $155,000•Onsite

About The Position

AVER is seeking a Senior .NET Application Developer to support software development, maintenance, operations, and modernization within a highly controlled and security-sensitive government environment. The position focuses on supporting applications throughout the full software development lifecycle, including requirements analysis, design, development, testing, deployment, production support, troubleshooting, maintenance, and enhancement of existing and new .NET-based applications. The Senior .NET Application Developer will work primarily within the Microsoft technology stack, developing and supporting websites, web-enabled data-entry systems, standalone and client-server applications, web services, Windows Services, and other software products. Join a collaborative team who values AVER’s mission, focus, and culture of delivering exceptional client service with great people and transformative technology solutions that ensure Government mission success.

Requirements

8+ years of technical analysis and software application development experience
Experience with Microsoft C#
Experience with .NET Core and Microsoft .NET 6 or greater
Experience with Microsoft .NET Framework 4.8 or greater
Experience with ASP.NET Core
Experience developing and supporting Windows Services
Experience with MVC Design Patterns and MVVM Design Patterns
Experience with ORM and database technologies, including Entity Framework Core (EF Core) 6 or greater
Experience with relational databases, including SQL Server 2016 or above and Oracle 12c or above
Experience with front-end development technologies including jQuery, AJAX, Telerik Kendo UI, or similar UI frameworks
Experience developing and integrating RESTful Web Services and APIs
Experience using GitHub Actions or another DevOps/CI/CD tool
Experience implementing authentication protocols including SAML, OAuth 2.0, and OpenID Connect
Experience working with JSON Web Tokens (JWT) for secure API communication
Experience with role-based access control (RBAC) and claims-based authentication
Experience with Microsoft Windows Server 2019 or above
Experience working within an Agile Scrum methodology
Experience with security and identity management
Knowledge of secure coding practices and application security principles
Strong technical analysis, troubleshooting, and problem-solving skills
Ability to identify and resolve software, database, API, and system integration issues
Ability to review another developer’s work and provide clear technical guidance
Strong attention to detail and ability to follow established client development, security, and documentation procedures

Nice To Haves

Experience supporting applications in government, defense, law enforcement, or other highly controlled technical environments
Experience supporting and troubleshooting applications in production environments
Experience modernizing or enhancing existing .NET and .NET Framework applications
Experience integrating applications with multiple databases, systems, APIs, or external services
Experience with automated build, testing, and deployment processes
Experience providing technical leadership, code reviews, and mentorship to junior and mid-level developers
Experience developing technical documentation, software user manuals, and technical reports
Experience working directly with clients and end users to translate business requirements into technical solutions

Responsibilities

Demonstrate success delivering solutions across the full systems development lifecycle, leveraging deep technical expertise to understand scope and ensure successful project delivery
Support websites, web-enabled data-entry systems, standalone and client-server applications, and collaborative computing products
Design, develop, enhance, debug, implement, maintain, and troubleshoot .NET-based software applications
Troubleshoot and resolve production problems related to software applications, databases, services, and system integrations
Research, test, build, and coordinate the conversion and/or integration of new products based on client requirements
Design and develop new software products and major enhancements to existing applications and evaluate the effectiveness of solutions
Identify and address problems involving systems integration, application compatibility, databases, and multiple technology platforms
Consult with project teams, clients, and end users to identify and understand application requirements
Perform feasibility and technical analysis for potential future projects and provide recommendations to management
Assist in the evaluation and recommendation of application software packages, application integration technologies, development tools, and testing tools
Develop and maintain RESTful web services and back-end application services
Develop and support Windows Services and ASP.NET Core applications
Implement and support authentication and authorization technologies including SAML, OAuth 2.0, OpenID Connect, JSON Web Tokens (JWT), role-based access control (RBAC), and claims-based authentication
Work with relational databases including Microsoft SQL Server and Oracle
Use Entity Framework Core and other ORM technologies to support application data access and database integration
Participate in Agile Scrum development activities, including planning, development, testing, code reviews, deployment, and production support
Support CI/CD and software deployment processes using GitHub Actions or comparable DevOps tools
Apply secure coding practices and application security principles throughout the software development lifecycle
Resolve software problems and respond to suggestions for application improvements and enhancements
Participate in the development and maintenance of software user manuals, technical documentation, and technical reports
Conduct code reviews and review the work of other developers to ensure quality, consistency, security, and adherence to established development standards
Act as a senior developer overseeing projects and providing technical guidance, oversight, and mentorship to less experienced developers
Provide technical expertise and guidance to clients, project teams, and other technical staff