AI Automation Engineer – Voice AI, Middleware Integration
Posted 3hrs ago
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Job Description
AI automation engineer integrating voice AI with field-service platforms for HVAC, plumbing, and electrical contractors. Building reliable booking and back-office automations.
Responsibilities:
- Build and maintain middleware connecting Vapi, Retell, and Assistable within GoHighLevel to field service management systems
- Integrate with ServiceTitan and Housecall Pro using REST APIs and OAuth
- Write integration logic interfacing with .NET / C# / C++ backend environments
- Program and verify end-to-end booking workflows into contractor dispatch schedules
- Monitor, diagnose, and resolve duplicate bookings, dropped payloads, and failed scheduling attempts
- Code, review, and debug JavaScript and/or TypeScript application logic
- Build, configure, and maintain production-grade voice agents using Vapi, Retell, Assistable, and ElevenLabs
- Tune latency, test prompt frameworks, design agent harnesses, and curate dynamic knowledge bases
- Architect multi-step decision trees and parent-child logic
- Run automated tests for conversational accuracy, speech recognition, and intent categorization
- Maintain reliable after-hours call answering and emergency dispatch agents
- Build GoHighLevel workflows for SMS, email, appointment reminders, and estimate follow-up campaigns
- Implement automations with Hermes, OpenClaw, Composio, and n8n
- Build AI agents that securely access third-party portals for repetitive contractor administration
- Support deployment of company-wide automation packages for beta clients
- Conduct technical onboarding, gather requirements, and complete client setup and integration during a typical two-month implementation
- Connect client information to GoHighLevel sub-accounts
- Verify client systems, credentials, and automations remain active, secure, and current
- Provide technical support and troubleshooting
- Escalate and resolve platform bugs with SaaS vendor support teams
- Build dashboards tracking voice minutes, booking volume, and system activity
- Configure internal GoHighLevel automations
- Document technical architectures and create SOPs
- Recommend technical solutions and collaborate with the founder on system design
- Work with the current fulfillment agency during an overlap period before taking full ownership
- Enforce data privacy and API security protocols
- Manage sensitive credentials using LastPass, NordPass, or One-Time Secret
- Work within designated secure environments and VPN platforms
- Assist with websites, landing pages, hosting, AEO, AI content workflows, Google Business Profile, and local marketing automations as needed
Requirements:
- Hands-on experience building and deploying production voice agents with Vapi, Retell, Assistable, and/or ElevenLabs
- Experience with prompt tuning, latency optimization, and knowledge base design
- Strong JavaScript and/or TypeScript skills
- Ability to write, review, and debug code
- Comfort reading .NET / C# / C++ environments is a plus
- Experience building middleware and integrations using REST APIs, OAuth, webhooks, and SDKs
- Solid experience building workflows, automations, and sub-account setups in GoHighLevel
- Experience with n8n, Hermes Agents, Composio, OpenClaw, or similar automation and agentic AI platforms
- Understanding of API security, data privacy, credential vaults, VPNs, and VPS hosting
- Fluent written and spoken English
- Comfortable supporting clients directly
- Ability to work independently without constant supervision
- Direct experience with ServiceTitan or Housecall Pro, or home service trades, preferred
- Familiarity with RAG, MCP, and vector databases is a plus
- Experience with website builders, hosting, landing pages, Google Business Profile, and AEO/SEO automation is a plus
- Software engineering or full-stack development background is a plus
- Openness to split shifts and availability for after-hours technical emergencies
- Professional setup, clean background, good camera, good microphone, and strong Wi-Fi
- Ability to work 8:00 AM–5:00 PM or 9:00 AM–6:00 PM ET
Benefits:
- 13th Month Bonus
- Permanent work-from-home / remote set-up
- Health insurance
- Dental insurance
- Mental health insurance
- Great starting salary
- Growth opportunity
- Performance-based raises
- Prizes and bonuses
- Reciprocal flexibility for personal commitments and appointments
- Path to technical leadership
- Performance-based compensation potential
- Professional development and personal growth opportunities


















