Front-End Developer, SME

Command Cyber Solutions is seeking a Front-End Developer, SME to serve as a technical authority on user interface design and implementation for the IRS Business Tax Account (BTA) modernization initiative. This role will guide the development of intuitive, user-centered web interfaces that comply with U.S. Web Design System (USWDS), IRS Online Design Guide (ODG), and WCAG 2.2 AA accessibility standards. The SME will provide expert-level input on front-end architecture, reusable component libraries, and best practices for responsive design and accessibility, while mentoring the development team and collaborating closely with UX/UI designers, back-end developers, and IRS stakeholders.

• Serve as a technical authority on front-end architecture, frameworks, and accessibility compliance for IRS taxpayer-facing applications.
• Guide the design and development of responsive, accessible, and user-friendly web interfaces using React, JavaScript/Typescript (ES6+), HTML5, and CSS
  3.
• Ensure compliance with USWDS, ODG, and WCAG 2.2 AA accessibility standards, performing code reviews for adherence to federal design and accessibility requirements.
• Collaborate with product owners, designers, and back-end engineers to define technical approaches for delivering scalable, reusable UI components.
• Provide expertise on front-end performance optimization, API integration, and secure coding best practices.
• Support CI/CD integration for front-end deployments using Git Hub Actions and automated testing tools.
• Mentor front-end developers by conducing code reviews, sharing best practices, and supporting skills development.
• Act as a liaison to ensure alignment between design, accessibility, and development teams during the Agile lifecycle.

• Bachelor’s degree in Computer Science, Software Engineering, or a related field.

• This position requires the ability to obtain and maintain a Public Trust background investigation in accordance with IRS and Department of the Treasury personnel security policies.
• Minimum Requirements:
  
  Favorable Tier 2 – Moderate Risk Public Trust (SF-85P) investigation.
• Elevated Eligibility:
  Tier 4 – High Risk Public Trust (SF-85P) investigation, if duties involve elevated system privileges, access to sensitive IRS systems, or handling Federal Tax Information (FTI).
• Staff-Like Access:
  Contractor personnel must receive a favorable suitability determination before being granted staff-like access to IRS information systems.
• Employment is contingent upon passing the required background investigation and maintaining eligibility throughout the period of performance.
• CompTIA Sec+ (or equivalent DoD 8570 IAT Level II certification) (Preferred).
• AWS Certified Developer – Associate or AWS Certified Solutions Architect – Associate (Preferred).
• Certified Scrum Developer (CSD) or other Agile-related certification (Preferred).
• Certified Secure Software Library Professional (CSSLP) or equivalent security-focused credential (Preferred)
• AAP Certified Professional in Accessibility Core Competencies (CPACC) or Web Accessibility Specialist (WAS) (Preferred).

• 10+ years of experience as a front-end developer, with at least 7+ years in a senior or SME-level role on IT or government projects.
• Proven experience in Agile/Scrum environments delivering enterprise-scale web applications.
• Strong experience working with React, JavaScript frameworks, and cloud-hosted applications in AWS/Kubernetes environments.

• Deep expertise in React including design patterns (i.e. provider context,…