Sr. Software Engineer ensure digital solutions meet functional, UX, and accessibility requirements across frontend and backend systems.

Our valued client is looking for a Sr. Software Engineer ensure digital solutions meet functional, UX, and accessibility requirements across frontend and backend systems.

This is a remote position (Eastern time zone)

Tasks include:

• Design, develop, and maintain responsive web applications using React.js and .NET Core.
• Build and maintain robust RESTful APIs and microservices with Node.js and .NET.
• Implement semantic HTML, ARIA patterns, and accessible component structures in JavaScript, React and Angular.
• Remediate accessibility issues across UI components, workflows, and backend integrations.
• Collaborate with design teams to ensure inclusive layouts, color contrast, focus management, and keyboard navigability.
• Conduct accessibility reviews, audits, and code remediation
• Advocate for accessibility across design, development, and product teams
• Build accessible backend services and APIs using .NET technologies
• Ensure proper handling of data, error states, and system responses that support accessible interfaces
• Support full-stack integration with frontend frameworks
• Build and maintain RESTful APIs and microservices using Node.js and .NET.
• Integrate and parse structured data using JSON across frontend and backend systems.
• Ensure performance, scalability, and security across digital applications.
• Work within Agile/Scrum teams, meeting sprint commitments, and release timelines

Must have:

• Reliability level security clearance
• Bachelor's/Master's degree in computer science, information technology, or related field with at least 10 years of software development experience
• 5-8 years of hands-on experience building accessible web applications using modern JavaScript frameworks
• Experience building UI components using JavaScript/Angular or React
• Experience implementing semantic HTML and ARIA patterns in frontend applications
• Experience developing single-page applications (SPAs) that consume backend APIs
• Experience building scalable backend services and APIs
• Experience supporting full-stack integration between frontend frameworks and backend services
• Experience designing and developing single-page applications (SPAs) using JavaScript frameworks
• Experience developing UI components using one of the React.js/JavaScript/Angular, including state management and reusable patterns
• Experience building RESTful APIs and backend services using .Net Core
• Provide examples demonstrating the proposed resource experience developing Node.js microservices or middleware, including structured data handling