Posted Sep 30, 2026

Senior Section 508 Tester

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ArcSource Group, Inc. is an award-winning, woman-owned small business providing program and project management, business optimization, training development and delivery, digital accessibility, administrative, and information technology support services to federal civilian and defense customers for more than 20 years. ArcSource combines agile project management expertise and technical skills with innovative, effective solutions to help our customers achieve mission objectives. ArcSource’s commitment to delivering high-quality services is demonstrated through its appraised processes and ISO certifications for quality and IT management. We are seeking a Senior Section 508 Tester to support the HHS and Office of the Secretary Digital Accessibility Program Services. This position will serve as a senior Digital Accessibility Subject Matter Expert, responsible for complex ICT accessibility testing, defect analysis, remediation guidance, quality assurance, web crawler calibration, technical assistance, and accessibility conformance reporting. The Senior Section 508 Tester will also provide technical leadership and guidance to other accessibility personnel. Position Location: Remote/telework Clearance Level Required: None Key Responsibilities: - Conduct comprehensive accessibility testing of websites, web applications, mobile applications, PDFs, Microsoft Office files, forms, multimedia, and eLearning products, and other ICT across various levels of complexity. - Perform manual, automated, keyboard, screenreader, and assistive-technology-based accessibility evaluations. - Evaluate ICT against applicable Section 508 requirements, WCAG Level AA criteria, HHS requirements, and approved testing methodologies. - Conduct complex defect reviews, identify root causes of accessibility nonconformance, and develop actionable remediation guidance. - Validate automated web-crawler findings, distinguish legitimate defects from false positives or scanning limitations, review scan outputs, and lead or participate in calibration activities. - Conduct or support authorized remediation activities and perform verification testing following remediation. - Prepare accessibility conformance reports documenting testing findings and outcomes. - Provide technical consultation and embedded accessibility SME support to HHS customers. - Develop remediation guidance and conduct or support authorized remediation of complex web, mobile, document, multimedia, and other ICT. - Mentor and provide technical guidance to Section 508 Testers. - Support accessibility service-request intake, prioritization, fulfillment, tracking, and escalation. - Assist with maintaining Digital Accessibility Solution Center testing procedures, technical guidance, and Operations Guide content. - Support high-priority accessibility activities involving executive, Secretary, White House, congressional, FITARA, and IT Acquisition Review materials when directed. - Meet established Digital Accessibility Solution Center service-level agreements and communicate anticipated delays or workload surges to program leadership. Education and Experience: - Bachelor’s degree or equivalent relevant work experience. - Minimum 5 years of directly relevant experience in Section 508 compliance, digital accessibility testing, accessibility remediation, or related technical accessibility services. - Current DHS Trusted Tester certification. - Expert knowledge of Section 508 requirements, WCAG Level AA criteria, DHS Trusted Tester methodology, HHS accessibility requirements, and approved accessibility-testing methodologies. - Demonstrated experience with manual, automated, and assistive-technology-based accessibility testing. - Experience evaluating and remediating complex websites, web and mobile applications, electronic documents, forms, multimedia, eLearning content, and other ICT. - Experience with accessibility defect analysis, remediation guidance, verification testing, and accessibility conformance reporting. - Experience validating automated accessibility-testing results, calibrating web-crawler findings, and identifying false positives or scanning limitations. - Experience providing technical accessibility consultation, customer support, training, and guidance to other accessibility personnel. Preferred Skills and Experience: - None identified beyond the required qualifications above Employee Benefits: - Medical, Dental, & Vision Benefits - Employer-paid long-Term & Short-Term Disability, Life Insurance - 401k Plan with generous company matching - 15-day PTO and 11 Federal Holidays for full-time employees working on Federal Contracts - Employee Assistance Program Salary: - Salary dependent on skills and experience Minimum Qualifications: To perform this job successfully, an individual must be able to perform each essential duty satisfactorily. The requirements listed below represent the minimum knowledge, skills, and/or abilities required. - Problem-Solving: Identifies and resolves problems in a timely manner; gathers and analyzes information skillfully; develops alternative solutions; works well in group problem-solving situations; uses reason even when dealing with emotional topics. - Written Communication: Writes clearly and informatively; edits work for spelling and grammar; varies writing style to meet needs; presents numerical data effectively; able to read and interpret written information. - Strategic Thinking: Develops strategies to achieve organizational goals; understands organization’s strengths & weaknesses; analyzes market and competition; identifies external threats and opportunities; adapts strategy to changing conditions. - Innovation: Displays original thinking and creativity; meets challenges with resourcefulness; generates suggestions for improving work; develops innovative approaches and ideas; presents ideas and information in a manner that gets others' attention. - Planning/Organizing: Prioritizes and plans work activities; uses time efficiently; plans for additional resources; sets goals and objectives; organizes or schedules other people and their tasks; develops realistic action plans. - Professionalism: Approaches others in a tactful manner; reacts well under pressure; treats others with respect and consideration regardless of their status or position; accepts responsibility for own actions; follows through on commitments. - Language Skills: Ability to read, analyze, and interpret general business periodicals, professional journals, technical procedures, or governmental regulations. Ability to write reports, proposals, business correspondence, and procedure manuals. Ability to effectively present information and respond to questions from groups of managers, clients, customers, and the general public. - Mathematical Skills: Ability to apply concepts such as fractions, percentages, ratios, and proportions to practical situations. - Reasoning Ability: Ability to define problems, collect data, establish facts, and draw valid conclusions. Ability to question activities and issues in all functional areas and make sound business decisions based on that data. Work Environment: The physical demands described here are representative of those that must be met by an employee to successfully perform the essential functions of the position. While performing the duties of this Job, the employee is regularly required to sit, talk, type or hear. The employee is frequently required to walk; use hands and fingers, handle, or feel and reach with hands and arms. Applicants selected will be subject to a government security investigation and must be able to obtain a government-granted security clearance. Individuals may also be subject to a background investigation, including, but not limited to, criminal history, employment and education verification, and drug testing. We are an equal opportunity employer and make employment decisions based on qualifications, merit, and business need. We participate in the E-Verify Employment Verification Program.