Senior .NET Application Developer

About us:

Creative Information Technology Inc (CITI) is an esteemed IT enterprise renowned for its exceptional customer service and innovation. We serve both government and commercial sectors, offering a range of solutions such as Healthcare IT, Human Services, Identity Credentialing, Cloud Computing, and Big Data Analytics. With clients in the US and abroad, we hold key contract vehicles including GSA IT Schedule 70, NIH CIO-SP3, GSA Alliant, and DHS-Eagle II.

Join us in driving growth and seizing new business opportunities!

Job Description:

Position Overview

We are seeking an experienced Senior .NET Application Developer to support the Department of Health and Human Services (HHS) Applications Team in developing, modernizing, enhancing, and maintaining enterprise applications.

The selected candidate will work on existing and legacy systems targeted for replacement or upgrade, contributing to application development, requirements gathering, database engineering, system integration, and technical documentation.

This role involves close collaboration with County/HHS stakeholders and an assigned Project Manager to deliver accessible, secure, scalable, and maintainable solutions while facilitating knowledge transfer to internal teams.

Key Responsibilities

• Design, develop, enhance, and maintain modern .NET web applications and Web APIs.
• Maintain and modernize existing .NET applications using MVC and Clean Architecture principles.
• Develop responsive, accessible user interfaces using C#, VB.NET, Blazor, React, HTML, and related technologies.
• Design, develop, and maintain database solutions using Microsoft SQL Server and Oracle.
• Map, transform, and migrate data across disparate database systems into Microsoft SQL Server.
• Gather and analyze business requirements, translating user enhancement requests into functional specifications, technical designs, and production-ready solutions.
• Integrate applications with Single Sign-On (SSO) and Microsoft Entra ID (formerly Azure AD).
• Leverage AI tools such as Microsoft Copilot safely and securely, in accordance with organizational policies.
• Prepare and publish .NET deployment packages across Development, Testing, and Production environments.
• Apply responsive UI/UX principles and ensure accessibility compliance with WCAG 2.1 Level AA standards.
• Develop technical documentation, release documentation, SQL scripts, and supporting system artifacts.
• Collaborate with County/HHS staff and the assigned Project Manager throughout the project lifecycle.
• Support knowledge transfer, document business processes, and promote long-term application maintainability.

Application Areas

The selected candidate will support multiple HHS applications and workflows, including:

• Direct Purchase Order (DPO): Process flows and workflows currently managed through the HighGear low-code/no-code platform.
• Contract Management: Workflows associated with the agency's contract tracking system.
• HR Tracking: Process flows and workflows supporting the HR tracking system.
• Contract Actions: Development and enhancement of workflows for new contracts, solicitations, and existing request types, including inflationary adjustments, budget modifications, PO liquidations, and funding code changes.

Required Qualifications

• Master of Science (MS) degree in a computer-related field.
• Minimum 7 years of experience developing modern .NET web applications and Web APIs.
• Minimum 7 years of experience maintaining .NET web applications using MVC and Clean Architecture.
• Minimum 7 years of experience with Microsoft SQL Server and Oracle, including database administration, development, integration, and reporting.
• Strong proficiency in VB.NET, C#, Blazor, React, .NET, HTML, and SQL.
• Demonstrated experience mapping and migrating data between disparate database systems into Microsoft SQL Server.
• Strong requirements engineering skills, including translating business needs and enhancement requests into functional and technical solutions.
• Experience integrating applications with SSO and Microsoft Entra ID.
• Experience using AI tools such as Microsoft Copilot in a secure and policy-compliant manner.
• Experience preparing and publishing .NET deployment packages across DEV, TEST, and PROD environments.
• Minimum 7 years of experience with responsive design and UI/UX best practices.
• Experience developing accessible user interfaces compliant with WCAG 2.1 Level AA.
• Ability to work within structured project environments and collaborate closely with an assigned Project Manager.

Collaboration & Knowledge Transfer

The selected candidate will work alongside County/HHS staff throughout the project lifecycle. Responsibilities include:

• Maintaining close coordination with the assigned Project Manager.
• Providing project metrics and regular progress updates.
• Facilitating active knowledge transfer to County staff.
• Documenting business processes, application functionality, and technical solutions.
• Ensuring transparency with stakeholders and supporting long-term maintainability of delivered applications.

Key Deliverables

• Production-ready, accessible .NET web application(s), including release documentation covering features and functionality defined in the Contract Actions Requirements Documents.
• Production-ready .NET web applications for subsequent systems, with release documentation covering each function and screen.
• SQL scripts supporting miscellaneous database and reporting requests.

Applications will be reviewed on a rolling basis until the position is filled. We look forward to reviewing your application.