Software Engineer - AI Agents Engineering Remote (US)

Vigy AI Inc.; Northern (KY); Hybrid; USD 110,000 - 140,000; Full time

Job summary

Vigy AI Inc. is seeking a Software Engineer - AI Agents to help build the core systems powering Vigy’s AI employees. You’ll work across a Rails backend, a real-time voice/video pipeline, and the integrations layer enabling agents to act on customer data in emails, calendars, CRMs, and more.

The role emphasizes shipping production AI systems with hands-on experience in LLM APIs and real-time tech. You’ll collaborate with founders on product direction and must be comfortable across the stack.

Qualifications

• 3+ years of professional software engineering experience, preferably with Rails.
• Hands-on experience with LLM APIs, prompting and tool calling.
• Comfort across backend, workers, and third-party API integrations.
• Interest in real-time systems is a plus.
• Product-minded with pragmatic engineering judgment.

Responsibilities

• Design and build agentic workflows on top of OpenAI's API.
• Maintain Rails backend powering agent conversations and integrations.
• Improve real-time pipeline latency and reliability.
• Build and maintain tool integrations for real actions.
• Write and manage background jobs for long-running tasks.
• Debug production issues across LLM, backend, and real-time layers.

Skills

Ruby on Rails

LLM APIs

Full-stack development

Real-time systems

Tools

LiveKit

OpenAI API

Anthropic API

SolidQueue

Job description

We're hiring a Software Engineer - AI Agents to help build the core systems that power Vigy's AI employees: LLM-driven agents that take real actions across email, calendars, CRMs, and dozens of other tools. You'll work across our Rails backend, real-time voice/video pipeline (LiveKit + OpenAI Realtime), and the integrations layer that lets our agents act on a customer's behalf. This role is for someone who wants to ship production AI systems, not just prototype them.

What you'll do

• – Design and build agentic workflows on top of OpenAI's API (Realtime, function/tool calling, structured outputs)
• – Develop and maintain the Rails backend that powers agent conversations, job execution, and integrations
• – Improve the real-time voice/video pipeline (LiveKit, HeyGen LiveAvatar) for latency and reliability
• – Build and maintain tool integrations (via Composio and direct APIs) that let agents take real actions
• – Write background jobs (SolidQueue) that handle long-running or asynchronous agent work
• – Debug production issues across the LLM, backend, and real-time layers, distinguishing transient failures from real bugs
• – Collaborate closely with founders on product direction for what AI employees should be able to do next

What we're looking for

• – 3+ years of professional software engineering experience, ideally with some in Ruby on Rails
• – Hands-on experience building with LLM APIs (OpenAI, Anthropic, or similar) — prompting, tool/function calling, structured outputs
• – Comfortable working across the stack: backend services, background jobs, and third-party API integrations
• – Experience with or strong interest in real-time systems (WebSockets, streaming audio/video) is a plus
• – Product sense — you can reason about what makes an AI employee actually useful, not just technically correct
• – Pragmatic engineering judgment: you ship, measure, and iterate rather than over-engineering up front