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Senior Quality Assurance Engineer | Washington, District Of Columbia
Senior Quality Assurance Engineer
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Washington , District Of Columbia

|

Hybrid, Onsite

|

Contract

Washington, District Of Columbia

|

Hybrid, Onsite

|

Contract

Job ID 76731|Posted Oct 23, 2026
JOB DESCRIPTION

Join a high-impact technology optimization initiative as a Senior Quality Assurance Engineer, supporting large-scale application development with a focus on quality, reliability, and user readiness. This role offers the opportunity to work independently in an Agile environment while partnering with stakeholders to ensure solutions meet expectations and are easy for end users to adopt.

Responsibilities

  • Collaborate with project and technology teams to validate user story acceptance criteria and confirm solutions meet business needs
  • Design, document, and execute test cases across front-end and back-end components of enterprise applications
  • Perform testing for web applications, APIs, and SQL Server-based solutions
  • Support Agile delivery by contributing to testing activities throughout the development lifecycle
  • Create clear, concise user support materials and documentation to help end users understand processes and tools
  • Work closely with stakeholders to understand requirements and translate them into effective test scripts
  • Document user processes and requirements accurately and consistently
  • Communicate findings, progress, and issues clearly to project partners and stakeholders

Skills

  • 7+ years of experience in system testing, including both front-end and back-end testing
  • Hands-on experience with Azure DevOps
  • Experience testing Angular applications, APIs, and SQL Server environments
  • Ability to work independently in an Agile setting
  • Strong written and verbal communication skills
  • Proven ability to create straightforward end-user documentation and training materials
  • Strong understanding of testing methodologies and the ability to execute testing across all phases of development
  • Experience working with clients or stakeholders to gather requirements and develop test scripts
  • Working knowledge of Microsoft Office 365, Active Directory, Microsoft Teams, and SharePoint Online

Preferred Skills

  • Experience supporting large-scale application development projects
  • Familiarity with cross-functional collaboration in enterprise environments
  • Ability to adapt quickly and stay organized while managing multiple testing priorities

Horizontal is committed to fostering an inclusive environment where diverse perspectives are valued and respected. We believe equity, belonging, and accessibility strengthen teams and help deliver better outcomes for everyone.

By applying for this position, you acknowledge and agree that Horizontal Talent may contact you regarding your application using automated technology, including phone calls, SMS/text messages, or email, which may be delivered by our virtual AI recruiter, Alex.

Horizontal is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex (including pregnancy, sexual orientation, and gender identity), national origin, age, disability, veteran status, or any other protected characteristic under applicable law.

Horizontal is committed to taking affirmative action to employ and advance in employment qualified individuals with disabilities and protected veterans. If you are an individual with a disability and require a reasonable accommodation to complete any part of the application process or participate in the interview process, click here to request accommodation assistance.

All applicants applying must be legally authorized to work in the country of employment.

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