Senior UI Engineer at Devis in Washington, DC

Company Overview Development InfoStructure LLC., (Devis) is a leading provider of innovative software development, management, and consulting services, specializing in cutting-edge technologies such as DevSecOps, AI, and Machine Learning. With over 30 years of experience, we have established ourselves as a trusted partner for government agencies, delivering tailored, mission-critical solutions that drive digital transformation and operational excellence. Our client-centric approach, coupled with our deep domain expertise and technical prowess, enables us to forge enduring relationships and consistently deliver high-impact, adaptive solutions that resonate with the unique needs of the public sector.

Job Overview The UI Engineer is responsible for designing, developing, and maintaining the React-based user interface components of the Committee Portal platform used by Committee staff at the U.S. House of Representatives.

This is a full-time role aligned to core business hours 7:00 AM to 6:00 PM Eastern. Work is performed on Capitol Hill, Washington, DC.

Primary Duties React and TypeScript Component Development

• Develop React components in TypeScript that implement UX designs and acceptance criteria for Committee Portal features.
• Translate wireframes and UX specifications into accessible, production-ready interface components.
• Maintain and refactor existing UI code to improve performance, maintainability, and consistency with the LCS design system.

API Integration

• Integrate GraphQL APIs into UI components, including queries, mutations, caching, and error handling.
• Collaborate with the ASP.NET Services Engineer to define query contracts and shape data requirements.
• Implement client-side state management using React Query, Zustand, or equivalent patterns already in use by the IPT.

Test Automation and Quality

• Develop unit tests using Vitest for new and existing React components.
• Coordinate with the IPT Test Engineer to support functional and regression testing each sprint.
• Debug issues reported by testers and users, reproduce defects, and deliver fixes within sprint commitments.

Configuration Management and Deployment

• Use Azure DevOps (ADO), git, and pull request workflows to manage source code and task status.
• Participate in containerized local development and support deployments through Azure Pipelines to Kubernetes environments.
• Adhere to all IPT Configuration Management processes defined by the Program Manager.

IPT Collaboration and Agile Delivery

• Participate in all established agile activities, including sprint planning, daily standups, sprint reviews, and retrospectives as directed by the Scrum Coordinator and Program Manager.
• Collaborate with UX designers, business analysts, ASP.NET Services Engineers, and Test Engineers to refine acceptance criteria and deliver working features each sprint.
• Produce code, configuration, and documentation as deliverables under the task, consistent with Section A.5 (Deliverables).

Required Qualifications Education

• Bachelor's degree required in Computer Science, Software Engineering, Information Systems, Human-Computer Interaction, or a related technical field.
• Equivalent combinations of certifications, portfolio evidence, and professional experience will be considered in place of a degree.

Experience Levels

• 3+ years of front-end engineering experience for Mid-Level consideration, or 6+ years for Senior Level consideration, consistent with Statement of Work Section A.4 Requirement 2.
• Demonstrated experience developing UI components in React using TypeScript.
• Demonstrated experience translating wireframes and UX specifications into production components.
• Experience writing unit tests using Vitest or a comparable modern JavaScript testing framework.
• Experience integrating APIs (GraphQL or REST) into React applications.

Technical Knowledge

• Working familiarity with Ant Design, React Query, and Zustand is a plus.
• Working knowledge of containerized local development environments (Docker) and git-based pull request workflows.
• Familiarity with Azure DevOps, Azure Pipelines, and Kubernetes-hosted deployments at a user level.
• Understanding of accessible web development and modern front-end performance practices.

Preferred Qualifications

• Meta Front-End Developer Certificate or equivalent.
• Microsoft Certified: Azure Developer Associate (AZ-204) is helpful where the Engineer supports Azure-hosted build and deployment tasks.

Security Requirements

• Must pass and maintain the background investigation required by the U.S. House of Representatives, Office of the Clerk, for contractor personnel supporting Legislative Computer Systems.
• Completion of any annual security awareness or House-mandated training required for IPT members.
• U.S. citizenship may be required consistent with House of Representatives contractor policy.

Salary

• $98,000 - $108,000 commensurate with background and experience.

Devis is an AA/EOE/M/F/Disabled/VET Employer committed to providing equal employment opportunity without regard to an individual’s race, color, religion, age, gender, sexual orientation, veteran status, national origin or disability.