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

Company: S.i. Systems

Location: Regina, London

Posted: May 25, 2026

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Position Details

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 technolo...