Front End Developer - Labrynth

Immediate Deliverables

• Wire up the BFF client: consume the checked OpenAPI contract via generated clients, and establish stable success/error envelopes, request IDs, idempotency-key and If-Match plumbing, and loading/empty/error/permission state scaffolding.
• Build invited sign-in and account context: Cognito sign-in (email/password + Google, PKCE) wired to opaque BFF sessions and protected routes, with explicit account-context switching on staging.
• Stand up the guided-exploration entry point: exploration create/run UI wired to the agent and the public corpus, showing the operation lifecycle via resumable SSE on staging.
• Conduct a UX & code audit: review for correctness, performance, and consistency; produce a prioritized fix list and a design-system alignment plan.

60–90 Day Scope

• Invited-account onboarding: invitation acceptance (personal signup / team membership), first workspace creation, first source upload with visible quarantine states (upload_pending → quarantined → processing → available|rejected|processing_failed), and ToS/legal-disclosure acceptance.
• Account & membership UX: personal/team accounts, owner/member capabilities via capability policy v1, membership states, and guarded personal↔team conversion flows, with the active account always explicit and never inferred.
• Guided exploration experience: the primary entry point over the workspace/exploration/idea/draft model, surfacing exploration lineage (derived_from / incorporates / branches_from / supersedes) and the operation lifecycle (accepted → dispatched → executing → succeeded|failed|cancelled|expired); raw model chain-of-thought is never shown.
• Durable-operation progress: fetch-based resumable SSE (auth via header, cookie, or storage; reconnect replays from the last-seen event sequence; respect streams/session and account limits), with cursor-polling fallback and 409 cursor_expired snapshot/resync.
• Public graph & analysis views: production-quality visualization and core claims/novelty/cluster views over the public reference plane.
• Billing UI (beta): Stripe test-mode plan selection and entitlement display, with no live charging.
• Performance & robustness: meet agreed Core Web Vitals budgets; consistent loading/empty/error/permission states; responsive and accessible UI.
• Test coverage & handover: component and E2E coverage for critical paths, documented component patterns, and clean handover.

What We're Looking For

• Deep experience with React & Next.js, including Next.js (App Router) as a containerized service, server components, routing, and SSR that calls an internal API rather than data stores directly.
• Contract-first client consumption: experience consuming generated OpenAPI/TypeScript clients in a pnpm monorepo, including idempotency keys, ETag/If-Match concurrency, and 202+operation polling, treating the BFF contract as the sole data authority.
• Streaming UI experience: building guided/streaming agent interfaces on fetch-based resumable SSE (header auth, reconnect from last-seen sequence, stream limits) with cursor-polling fallback and 409 resync.
• Identity-aware UI: experience handling Cognito-backed opaque BFF sessions, protected routes, and explicit account-scoped context on the client.
• Data-dense & public-graph UX: experience building dashboards over search, claims/citations, clusters, and validation results, and interactive visualization of large, public reference data sets.
• UI & styling: strong Tailwind skills and experience building component-driven UI from a design system and semantic tokens, not ad-hoc styles.
• Performance & quality: solid grasp of Core Web Vitals, bundle size, and rendering performance, plus component and E2E testing and accessibility fundamentals.
• Availability with meaningful overlap with US and Australian project hours for weekly sync and incident response.

Nice to Have

• Experience with graph visualization libraries for large citation/cluster networks.
• Experience building onboarding flows with file-upload quarantine UX and legal-disclosure/ToS acceptance capture.
• Experience with large data-set virtualization and rendering performance.
• A track record of contributing reusable primitives back to a shared design system.

What’s In It For You

• High-impact work at the intersection of AI and critical infrastructure regulation
• Direct customer exposure and a seat at the table when we decide what to build
• Small team with outsized influence; your field learning shapes the product roadmap
• Modern AI-native development environment (Claude Code, Cursor, multi-model orchestration)
• Remote-first
• Competitive compensation

Values We Hire For

• Character: integrity and trustworthiness above all
• Competency: evoking trust and reliably delivering
• Togetherness: family-level support and alignment
• Impact: meaningful outcomes over activity
• Commitment: ownership and follow-through