Software Engineer II - Front End (Library of Congress)

Ad Hoc LLC is a technology company that empowers organizations to deliver scalable, impactful digital services. The Software Engineer II - Front End will be responsible for building and maintaining user-facing applications, ensuring accessibility standards, and collaborating with cross-functional teams to deliver complete features.

Responsibilities:

• Build and maintain user-facing applications using Angular, HTML/CSS, and JavaScript, implementing designs from Figma specifications using federal Design System components
• Write and maintain Selenium and Cypress end-to-end tests for UI workflows, contributing to automated test coverage targets for all new and modified code
• Ensure frontend implementations meet WCAG 2.1 AA accessibility standards in collaboration with the UX/Accessibility enabling team
• Debug, optimize, and monitor work across test and production environments, participating in CI/CD pipeline contributions as appropriate
• Participate in mandatory peer code review and adhere to the four-eyes principle on all commits
• Collaborate with backend engineers, QA, and UX designers to deliver complete features from story refinement through production deployment
• Participate in SAFe ceremonies including sprint planning, standups, reviews, and retrospectives
• Contribute to Design System component development, helping maintain consistency across program modules
• Support on-call rotations as needed and develop cross-functional knowledge through paired programming

Requirements:

• 3+ years of relevant engineering experience and a Bachelor's degree, or equivalent additional experience in lieu of a degree
• Must meet federal suitability requirements and pass a background investigation as a condition of employment
• Proficiency in HTML/CSS, JavaScript, and Angular for building modern web applications
• Proficiency in Python for server-side development
• Experience implementing UI designs from Figma or equivalent design tooling
• Familiarity with automated testing frameworks such as Selenium, Cypress, or Playwright
• Working knowledge of WCAG 2.1 AA accessibility standards and how they apply to frontend development
• Experience working within CI/CD pipelines and version control via Git/GitLab
• Ability to collaborate effectively across engineering, QA, and design disciplines in an agile environment
• Prior experience with federal agency digital services or government contracting environments
• Familiarity with Design System governance and component library contribution workflows
• Experience with accessibility testing tools such as Axe, pa11y, ANDI, JAWS, or NVDA
• Exposure to SAFe or scaled Agile delivery frameworks
• Experience working within a federal Design System or USWDS component standards