New 
.NET Developer
 Quadrant, Inc. | |
 United States, Virginia, Arlington | |
 Feb 11, 2026 | |
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.NET Developer
Arlington, VA (remote) Pay From: $55.00 per hour MUST: Experienced .NET Developer Certified Microsoft Software Engineer required 10+ years experience in full life-cycle software development in Microsoft Windows based environment. 7+ years of experience in .net technology, visual studio, Visual Basic, and C# Demonstrated experience working across the full software development lifecycle, from design and implementation through testing and deployment. Extensive knowledge in MS SQL, Oracle, MS Access, Crystal report Strong experience with React and modern JavaScript including component-based development Hands-on experience with AWS services including Lambda, CloudWatch, API Gateway. Experience integrating web applications with Amazon Lex or similar conversational platforms Experience working with REST APIs and backend integrations Familiarity with cloud-native application development concepts Experience using Git for source control and collaborative development Experience using Jira (or similar tools) for task tracking, sprint planning, and issue management Ability to work within an existing codebase and iteratively extend functionality Strong communication skills and comfort working directly with clients Bachelor's required DUTIES: We are seeking a hands-on developer to design, build, and extend a web-based chatbot embedded within a public-facing website. This role focuses on continuing the evolution of the existing chatbot solution through new features, improved user experience, and expanded integrations. The developer will contribute to design decisions, implement new conversational workflows, and collaborate closely with both technical team members and the client. The role includes direct client interaction, including working sessions, demos, and progress briefings. Responsibilities: Design, build, and extend a React-based chatbot UI embedded in a public-facing website Continue development of an existing chatbot by adding new features, workflows, and UI improvements Improve chat user experience, including conversation flow, accessibility, responsiveness, and error handling Implement enhancements based on evolving requirements and user feedback Design and implement intents, slots, and dialog flows Extend conversational capabilities through backend integrations, APIs, and data sources Support behaviors such as contextual follow-ups, clarification prompts, and fallback handling Clearly communicate technical status, design decisions, and implementation considerations Help translate client needs into actionable development tasks and solution enhancements Test, debug, and refine chatbot behavior across development and production environments Address defects and performance issues as part of ongoing solution evolution Contribute to technical documentation and knowledge transfer materials Ensure software coding complies with industry security guidelines Quadrant is an affirmative action/equal opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, status as a protected veteran, or status as an individual with a disability. "Healthcare benefits are offered to all eligible employees according to compliance mandated by the Affordable Care Act". | |