UI React Engineer - Polygraph Required

About the Team Here at BTI360, we’ve built a culture that’s passionate about developing software engineers. Software doesn't build itself. People do.  In fact, teams of people do.  That's why our primary focus is on developing better craftsmen, better teammates, and better technical leaders.  By putting people first, we're not just giving our teammates more opportunities to grow, we're also raising the bar of the software we ship. BTI360 previously has been voted 10 years in a row as a TOP Place to Work by the Washington Business Journal.  We’re looking for UI React Engineers to help modernize a mission-critical system used to support complex manual user workflows. In this role, you’ll build intuitive, performant user interfaces that help users ingest, navigate, and analyze information from a variety of file types. The system applies named entity recognition and related data-processing capabilities to reduce manual effort, surface key insights, and improve the speed and accuracy of mission workflows. What you will do in this role: Work closely with teammates and stakeholders in a Lean Agile environment to build mission-critical production applications focused on data discovery and analysis  Participate in code reviews, system design discussions, and continuous improvement initiatives   Leverage modern build tools, testing frameworks, and CI/CD pipelines to ensure quality and delivery speed Design and build modern, performant, responsive user interfaces using React and related technologies   Collaborate with UI and backend engineers and product stakeholders to deliver intuitive and accessible user experiences that integrate with RESTful APIs   Required Qualifications: Active TS/SCI with Polygraph at time of application Experience with source control ( e.g. Git) and CI/CD pipeline tools such as Jenkins (preferred), AWS CodeBuild , GitLab CI, or GitHub Actions Experience designing and implementing scalable, maintainable, and OOP based software in a containerized cloud environment (AWS preferred) leveraging foundational services for computing, identity management, and networking.   Proficiency in modern JavaScript/TypeScript, HTML, and CSS Proficiency in building frontend applications with React and related libraries (e.g., React Router, Redux, Zustand , etc.)   Effective written and verbal communication skills necessary to perform job duties and collaborate with team members   Candidates must maintain a primary residence within a two ‑ hour drive of Herndon, VA to support onsite collaboration as needed. Desired skills: Contributions to open-source libraries or community projects or personal projects Experience with UI unit and E2E testing tools and frameworks such as (e.g., Jest, Vitest , Playwright, Cypress)   Familiarity with design systems and component libraries (e.g., Storybook, Tailwind CSS, Material UI)   Understanding of accessibility and usability best practices and tooling…