Software Engineer – Front-End Focus (.NET) - (Remote)

As a Software Engineer – Front-End Focus (.NET) at ArcheSys, you will lead the creation of responsive, accessible, and user-centric web applications while collaborating closely with back-end services. In this role, you will bridge the gap between design and engineering, building polished client-facing interfaces using modern JavaScript/TypeScript frameworks while seamlessly interfacing with and contributing to our .NET core services and APIs.

ArcheSys is a premier technology consulting firm specializing in enterprise cloud governance, DevSecOps, and digital transformation for mission-critical public sector and commercial platforms. We take pride in driving impactful, secure, and modern digital solutions through a culture of engineering excellence and close collaboration.

This position demands a proactive developer with an eye for UI/UX detail, a deep commitment to accessibility standards (WCAG 2.1 AA / Section 508), and solid full-stack fundamentals in C# and .NET. The ideal candidate thrives in an agile team environment, crafting modular front-end components backed by robust, well-structured web APIs.

This is a fully remote, full-time position.

Residency Requirement: Candidates MUST have lived in the U.S. for at least 3 of the past 5 years and be authorized to work in the U.S. (Citizen, Permanent Resident, or EAD). 

Sponsorship: This position does not offer any type of sponsorship. Candidates must already be authorized to work in the U.S. (e.g., Citizen, Permanent Resident, or EAD). 

Clearance: Public Trust Clearance (or ability to obtain) 

Responsibilities 

• Design, develop, and deploy highly responsive web applications, user interfaces, and supporting backend APIs using React, Next.js, and the .NET framework.
• Collaborate closely with stakeholders (e.g., business stakeholders, product owners, UX/UI designers, and end users) to translate functional requirements and wireframes into elegant, accessible code.
• Implement robust client-side routing, state management, and styling architectures to optimize application performance and responsive layouts.
• Integrate frontend applications seamlessly with Azure cloud services and secure RESTful APIs.
• Manage CI/CD pipelines using TFS and Octopus Deploy to ensure smooth and automated application delivery.
• Identify front-end performance bottlenecks, debug complex UI/UX or API issues, and devise clean, maintainable solutions.
• Champion front-end best practices, including code reusability, semantic HTML, modern CSS methodologies, and strict web accessibility standards.

Requirements

Core Technical Stack & Tooling:

• Core MVC ASP.NET
• React, Next JS
• Web development CSS
• Accessibility ARIA, etc
• Security/Auth
• Comfortable with Agentic AI -assisted development

Background & Cloud Experience:

• Must be able to attain low-level security clearance.
• Ability to pass a federal background check successfully and maintain eligibility for continued access authorizations, including periodic drug screenings.
• Bachelor’s degree in Computer Science, Engineering, or a related field.
• Minimum of 3-7 years of hands-on experience in full-stack development with a heavy emphasis on modern front-end frameworks and .NET/Azure cloud solutions.
• Deep proficiency in the .NET framework, especially in ASP.NET Core, MVC, Entity Framework, and LINQ.
• Demonstrable experience integrating front-end clients with Azure services such as Azure Web Apps, Azure Functions, and Azure SQL Database.
• Hands-on experience with version control tools, preferably Git.
• Practical experience managing or interacting with CI/CD tools like Team Foundation Server (TFS) and Octopus Deploy.
• Solid experience with SQL database design, optimization, and querying techniques to support data-driven UI components.
• Strong proficiency in developing, integrating, and managing secure RESTful APIs.
• Previous work in an agile environment and a thorough understanding of Scrum or other agile methodologies.
• Familiarity with web application security standards and protocols, including but not limited to OAuth, JWT, and secure coding best practices.
• Exceptional verbal and written communication abilities to effectively bridge the gap between technical implementation and non-technical business needs.

Clearance

Applicants selected will be subject to a security investigation and may need to meet eligibility requirements for access to classified information.

Desirable Skills 

• Strong expertise in .NET Core, especially for web API development and integration. 
• PA11Y (nice to have)
• Razor and Blazor (nice to have)
• Proficiency in front-end development using TypeScript to enforce type safety across modern JavaScript frameworks.
• Strong expertise in .NET Core for modular web API development and microservices integration.
• Strong understanding of Azure DevOps for CI/CD, automated testing, and infrastructure as code.
• Experience with Azure Cognitive Services for building AI-driven or predictive features within user interfaces.
• Hands-on experience with Azure serverless architectures, including Azure Functions and Logic Apps.
• Knowledge of containerization using Docker and orchestration with Kubernetes, especially Azure Kubernetes Service (AKS).
• Strong grasp of front-end design patterns, SOLID principles, and clean coding practices.
• Experience understanding OAuth2.0 and OpenID Connect protocols for client-side authentication flow.
• Knowledge of modern authentication and authorization mechanisms, including Azure Active Directory and Azure AD B2C.
• Ability to optimize web performance, core web vitals, and application scalability in a cloud environment.
• Ability to work independently, act as a self-starter, and operate proactively.
• Strong analytical and problem-solving skills; logical thinker with an intellectual curiosity for emerging frontend trends.

What We Offer Competitive salary and benefits package, including health reimbursement, retirement plan, and generous paid time off. Opportunity to work with a talented team of professionals on exciting and innovative projects. Flexible work arrangements, including remote work options. Continuous learning and development opportunities, including access to training resources and professional development programs. A collaborative and inclusive work environment that values diversity and encourages growth.

Join us at ArcheSys and be part of a team dedicated to delivering cutting-edge cloud solutions for clients in the public sector. Your expertise and passion for technology will help us continue to innovate and grow. We look forward to welcoming you to our team and supporting your success as Full Stack .Net Developer.

ArcheSys participates in E-Verify. Upon hire, we will provide the federal government with your Form I-9 information to confirm that you are authorized to work in the U.S.

ArcheSys is an equal opportunity employer committed to creating a diverse and inclusive workplace. We welcome applications from all qualified candidates, regardless of race, color, religion, sex.