Senior Software Engineer, AI Full Stack

About this role

WorkHero is building the AI-powered back office for the skilled trades, starting with the $50B+ HVAC industry. Small contractors are great at their trade but lose 20+ hours a week to invoicing, permits, scheduling, and paperwork. WorkHero combines expert office managers with automation and AI tooling, enabling a small team to take real ownership of that back-office work.

We’re hiring a senior full-stack engineer to build the product experiences and AI systems at the core of WorkHero—from React and React Native workflows to Node services, tool-using agents, and human-review loops. You’ll own systems end to end alongside a small, senior team with deep experience in AI, product, and the trades.

### What you’ll build

You'll work across the product surface and the AI infrastructure behind it. For example:

• New product screens and flows (jobs, customers, invoices, scheduling) in React and React Native, especially AI chat UI (chat & tool result rendering, streaming responses, human review and feedback loops)
• AI workflows in production: tool-using agents, RAG/search, classification/extraction, and human-in-the-loop flows
• Automations: Contribute new features and improvements to our AI-powered business automation platform
• Integrations & ingestion: pull data from third-party systems (APIs/webhooks/files)
• Evals & monitoring: regression tests for prompts/workflows, quality metrics, drift detection, and cost/latency tracking
• Scalable systems: queues and orchestration, retries, data modeling, and API design to support rapid product iteration
• UX polish and reliability improvements (loading states, edge cases, accessibility, performance)

### Responsibilities

• Analyze requirements and propose innovative AI-native solutions to technical problems
• Write clean scalable code
• Ship full-stack features across React, React Native (frontend) and Node (API/services)
• Test and deploy features & services, and optimize the performance of our AI systems
• Respond to critica...