AI Engineer – Conversational AI, Voice, LLM

OneSeven Tech (OST)

AI Engineer building a production-grade voice agent that handles thousands of calls monthly for legal compliance. Configuring workflows, tuning prompts, and ensuring compliance in real estate.

Posted 5/22/2026full-timeRemote • 🇦🇷 ArgentinaMid-LevelSenior💰 $4,000 - $5,000 per monthWebsite

About the role

Key responsibilities & impact

Configure and tune the AI voice agent on the Retell platform — conversation flows for call greeting, intent detection, caller routing, wire verification, closing date inquiries, and escalation handling
Write and iterate on LLM prompts that control the agent's personality, decision-making, and compliance behavior
Design multi-step conversation workflows with branching logic (e.g. caller asks about wire instructions → verify identity → look up file → confirm or escalate)
Configure the agent's knowledge base — staff directories, office information, FAQs, and process explanations
Work on the telephony integration layer — understanding how calls route from the PBX through to the agent and how the agent transfers calls back to specific extensions
Own the analytics and quality layer — call scoring, sentiment analysis, intent categorization, and accuracy monitoring using Retell's analytics and custom tooling
Collaborate closely with the backend engineer who builds the APIs the agent calls, and with the technical lead

Requirements

What you’ll need

LLM prompt engineering — designing, testing, and iterating on prompts that control agent behavior in production (voice/phone context strongly preferred over chatbot-only experience)
Conversational AI workflow design — multi-step flows with branching logic, intent detection, and error handling
Experience with at least one voice AI or conversational AI platform — Retell, Vapi, Bland, Voiceflow, Amazon Connect, Twilio Voice, or similar
Experience working with LLM APIs (OpenAI, Anthropic, or similar) — model selection, token cost management, and latency tradeoffs
Detail-oriented mindset — a small prompt change can cause the agent to disclose sensitive information or sound robotic. Precision matters.
Professional English proficiency — clear written communication in Slack and async updates

Benefits

Comp & perks

$5,000/month — paid in USD, bi-weekly via Deel
Fully Remote — work from anywhere in Latin America
Long-term contract — starting with a 6-month contract, then full-time
Paid PTO — competitive package
Referral Program — earn a bonus for referring talent that gets hired

ATS Keywords

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Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard Skills & Tools

LLM prompt engineeringconversational AI workflow designintent detectionerror handlingvoice AI platform experienceLLM APIsmodel selectiontoken cost managementlatency tradeoffscall scoring

Soft Skills

detail-oriented mindsetclear written communication