Senior Frontend Engineer

Responsibilities Own frontend delivery for AI Accelerator projects (prototyping through production‑adjacent hardening). Build React + TypeScript chat/copilot/workflow automation, agent supervision, prompt/configuration, data apps, and evaluation/feedback UIs. Design streaming AI interfaces with source/provenance, confidence display, multimodal review, human approval, and error recovery. Create human‑in‑the‑loop review/diff/approval/correction/provenance workflows. Define frontend architecture patterns, reusable components, and starter templates. Partner to convert designs into accessible, production‑quality components/workflows. Collaborate to define API contracts, streaming patterns, auth flows, telemetry boundaries. Build and maintain frontend test suites (Vitest/Jest, React Testing Library, Playwright, Cypress, etc.) and evaluation workflows. Integrate CI/CD, pipelines, environment config, and deployments with platform teams. Qualifications BS+ in CS/Engineering/Design Tech/Science (or related). 5+ years frontend (or full‑stack with strong frontend) experience. Expertise in React and TypeScript/JavaScript; component architecture, state management, HTML/CSS, accessibility, performance, responsive design. Experience with AI‑powered product UX (chat/copilot/workflow/evaluation/human‑in‑the‑loop). Streamlit (or similar) for lightweight apps/prototyping; backend integration via REST/GraphQL/WebSockets/SSE. Enterprise auth (OAuth/OIDC/SSO), secure token handling, observability/production readiness. AWS‑hosted patterns, CI/CD, GitHub workflows; automated testing. Use coding agents/AI tools (e.g., Claude Code, Codex, Gemini CLI, GitHub Copilot). Strong written/verbal communication. Compensation $137,530–$166,654 (NJ) or $151,280–$183,319 (Cambridge Crossing/Seattle). Application Instructions Apply even if you don’t perfectly match the requirements. #J-18808-Ljbffr Scorpion Therapeutics