Senior Frontend Software Engineer, AI UX

Posted 10 hours ago

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About the role

  • Senior frontend-focused engineer building Pebl’s conversational AI assistant. Shaping streaming, agentic UX for a platform enabling global hiring and workforce management.

Responsibilities

  • Design and build full-stack features for Pebl’s conversational AI assistant, with frontend/UX depth and ownership.
  • Apply LLM and agentic-system experience, including prompt design, tool/function calling, multi-step agent reasoning, and evaluation.
  • Shape assistant behavior and its presentation in the user interface.
  • Prototype and propose new conversational and generative AI interaction patterns.
  • Build and maintain frontend and backend components using TypeScript/React and clean contracts and APIs for agentic workflows.
  • Lead by example in clean, maintainable code; mentor junior team members and foster continuous learning.
  • Contribute to technical discussions, design reviews, and code reviews.
  • Troubleshoot frontend and backend production issues, including bad model output, latency, and dropped tool calls.

Requirements

  • 8+ years of professional software engineering experience, full-stack, with demonstrated strength and a clear preference for frontend/UX work.
  • 1+ years of hands-on experience building LLM-powered or agentic products.
  • Experience building interfaces for AI-powered or agentic products, including conversational UIs, copilots, assistants, and generative/dynamic UI techniques.
  • Solid understanding of LLM design patterns, prompt engineering, and observability/instrumentation for agentic systems.
  • Strong command of modern frontend (React/TypeScript) and understanding of frontends integrating with backend services, APIs, and real-time/streaming data.
  • Track record of building products beyond standard CRUD apps and dashboards, with craft, polish, or a distinctive user experience.
  • Comfort working across the full stack, including backend and infrastructure.
  • Lean mindset focused on customer value, minimizing waste, workflow optimization, continuous improvement, and rapid iteration.
  • Excitement for evolving AI-driven UX patterns and discovering new approaches.

Benefits

  • Flexible Time Off – Take the time you need to recharge.
  • Parental Leave – Support for growing families.
  • Health and Dental Insurance – Where applicable, to cover you and your loved ones.
  • Retirement Savings + Employee Incentive Plan – Plan for the future while sharing our success.

Job title

Job type

Full Time

Experience level

Senior

Salary

Not specified

Degree requirement

No Education Requirement

Tech skills

ReactTypeScript

Location requirements

HybridTorontoCanada

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