Senior Frontend Software Engineer, AI UX

Pebl - Palo Alto, CA

Hiring: Senior Frontend Software Engineer, AI UX Company: Pebl Location: Palo Alto, CA Job Posted Time: 2026-09-02 17:59:02 Employment Type: Full-time Target Skills & Keywords: Frontend Engineering, Product Engineering, Conversational AI, LLM-based Systems, Agentic Systems, Prompt Design, Tool/Function Calling, Multi-step Agent Reasoning, Evaluation, TypeScript, React, API Design, AI-Native UX, Streaming Responses, Human-in-the-Loop Experience: - Hands-on experience with LLM-based and agentic systems — prompt design, tool/function calling, multi-step agent reasoning, evaluation - Strongest in frontend/product engineering, with backend capability sufficient to design clean contracts and APIs supporting agentic workflows - Experience building conversational AI interfaces that real users interact with directly - In-office collaboration required Monday–Wednesday in Palo Alto, CA office Required Skills: - Design and build full-stack features for a conversational AI assistant, with particular depth and ownership on the frontend/UX side - Shape the experience around streaming responses, wrong-answer recovery, fallback states, user trust, and human-in-the-loop moments - Bring product taste and a strong point of view on what makes an AI-driven experience great - Prototype and propose new interaction patterns as underlying models and agent capabilities evolve - Build and maintain both frontend and backend components (TypeScript/React on the frontend; comfortable enough on the backend to design clean contracts and APIs that support agentic workflows) Qualifications: - Strong frontend/product engineering background with a passion for user-facing AI experiences - Ability to drive the user-facing AI experience rather than backend AI infrastructure, RAG platforms, internal automation, or AI-assisted developer tooling - Willingness to push for a better UX rather than shipping "good enough" - Excited about working at the edge of what's possible in conversational and agentic UX Compensation: $145,600.00/yr - $172,900.00/yr Interested candidates, please apply directly through the job posting on company's career page or try via AI auto apply on this platform. Don’t miss this opportunity to join a forward-thinking team!