• 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. • 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.

Role Description What you will be doing: - Write well-designed, testable, and scalable code that performs flawlessly in production; - Take part in the full development cycle from sprint planning to release cycles; - Ensure smooth development and cooperation between dev teams and product owners; - Build customer-facing consumer web and mobile applications for global audiences; - Implement third-party integrations including external APIs and analytics; - Optimize for SEO performance and PageSpeed improvements. Qualifications - Strong commercial experience in React, TypeScript and Next.js; - Motivation to grow into cross-platform development (web and mobile); - End-to-end thinking across frontend, backend, and infrastructure. Willingness to contribute beyond frontend scope when needed; - Solid expertise with HTML/CSS, including responsive and cross-browser development; - Experience with third-party integrations (external APIs, analytics); - Proven track record with SEO optimizations and PageSpeed improvements; - Strong UI/UX experience with Figma; - Good English skills in speaking and writing (B2+). Benefits - Generous Leave Policy: Take advantage of paid time off, encompassing both vacation and sick leave, to ensure you can recharge and recover when needed. Take your time on bank holidays as well. - Continuously Development: Get an opportunity to join a fast-growing business where the sky’s the limit. - Company Events: Engage in our vibrant company culture through a variety of informal events designed to foster camaraderie and teamwork. - Full Remote Work: Enjoy the flexibility of working remotely from wherever you feel most productive.

• Diagnosing, triaging, and leading to resolution issues involving unnecessary renders, long tasks, memory leaks, forced reflows, layout shifts, expensive painting, and excessive JavaScript execution. • Define and improve measurable performance targets using real-user monitoring, Lighthouse, synthetic testing, Chrome DevTools traces, and product-level business metrics. • Establish performance budgets, dashboards, and alerts • Raise the performance capabilities of the broader organization through technical talks, workshops, documentation, mentoring, code reviews, and reusable tooling.

Role Description We are looking for a Senior Frontend Engineer who specializes in frontend performance tuning and optimization. You will join the Viewer team, which is responsible for delivering high-traffic experiences across search, video, site navigation, and other core areas of Chaturbate. This role requires deeper performance expertise than a typical frontend engineering position. You will: - Diagnose, triage, and lead to resolution issues involving unnecessary renders, long tasks, memory leaks, forced reflows, layout shifts, expensive painting, and excessive JavaScript execution. - Define and improve measurable performance targets using real-user monitoring, Lighthouse, synthetic testing, Chrome DevTools traces, and product-level business metrics. - Establish performance budgets, dashboards, and alerts. - Raise the performance capabilities of the broader organization through technical talks, workshops, documentation, mentoring, code reviews, and reusable tooling. Qualifications - Bachelor’s degree in Computer Science or related field (or equivalent practical experience). - Deep expertise in modern front-end frameworks (React, Angular, Vue, Svelte, etc.), TypeScript, JavaScript, HTML, and CSS, with experience operating in a front-end heavy high-traffic consumer web application. - Expert-level proficiency with Chrome DevTools, React Profiler, Lighthouse, CPU profiles, flame charts, network waterfalls, and performance traces. - Senior-level technical leadership skills, including identifying high-impact work independently, influencing architecture decisions, and advising teams outside your immediate area. - Strong understanding of browser internals, including JavaScript execution, style calculation, layout, painting, rasterization, and compositing. - Proven experience improving Core Web Vitals, including Largest Contentful Paint, Interaction to Next Paint, and Cumulative Layout Shift using real-user data. - Hands-on experience diagnosing memory leaks using heap snapshots, allocation profiles, garbage-collection analysis, and detached DOM-node detection. - Ability to optimize rendering, hydration, bundle size, code splitting, main-thread work, third-party scripts, and frontend asset delivery. Benefits - Competitive compensation with performance bonuses. - Fully remote option. - Health, vision, dental, and life insurance for you and any dependents, with policy premiums covered by the company. - Long- & short-term disability insurance. - Unlimited PTO. - Annual year-end company closure. - Optional 401k with 5% matching. - 12 paid holidays. - Paid lunches in-office; if remote, a $125/week stipend via Sharebite. - EAP and employee recognition programs.