AI Voice Engineer (Low-Latency Conversational AI)

We are a large B2C eCommerce brand in the health and wellness space, and we are building a cutting-edge, high-volume outbound AI sales team designed to handle 100,000+ voice calls per month.

We are seeking an experienced and highly skilled AI Voice Engineer to be the foundational engineer responsible for bringing our conversational AI agents to life. This is a crucial remote role for a candidate who thrives on solving low-latency challenges, driving conversion rates, and integrating complex systems at massive scale.

What You'll Do:

• Voice Model Integration: Work hands-on with leading commercial voice platforms like ElevenLabs and integrate with top-tier LLMs like ChatGPT/GPT-5 (and similar commercial models) alongside various promising open-source models to optimize conversation quality and cost.

• Custom LLM Development: Design, build, and fine-tune custom Large Language Models (LLMs) specifically trained on high-volume phone call recordings to ensure natural, context-aware, and highly persuasive sales conversations.

• Low-Latency Voice Optimization: Architect and implement solutions to achieve ultra-low latency in AI voice responses, ensuring human-like flow and minimizing response delay over the phone network.

• System Integration: Seamlessly integrate the conversational AI system with core business infrastructure, including CRM platforms (e.g., HubSpot, Klaviyo) and payment systems for end-to-end transaction handling.

• Prompt Engineering Mastery: Develop advanced and context-aware prompts to maximize the AI agent's effectiveness, maintain brand voice, and steer conversations toward desired sales outcomes.

• Guardrail Creation & Maintenance: Implement robust guardrails based on detailed sales scripts, legal requirements, and conversation factors to ensure safe, ethical, and on-brand interactions at massive scale.

• A/B Testing & Conversion Optimization: Design and execute split testing (A/B testing) protocols within the AI environment to continuously improve conversation flows, prompt effectiveness, and ultimately drive higher AI conversion rates (e.g., booked appointments, sales completion).

• Scalable Code Development: Write clean, efficient, and scalable code primarily in Python (or other popular AI languages like Rust or Go) to manage the high-volume call infrastructure.

• Workflow Orchestration (n8n): Build and maintain n8n workflows to orchestrate outbound call triggers, lead routing, real-time webhooks, CRM updates, follow-ups (SMS/email), error retries, and human handoff; version and monitor workflows in production.

Required Skills:

• 5+ years of professional experience in software development, with at least 3 years focused on conversational AI, LLMs, or Voice-User Interface (VUI) development.

• Proven ability to optimize voice applications for low-latency performance and real-time processing.

• Expert-level proficiency in Python. Experience with cloud platforms (AWS, GCP, Azure) and their AI/ML services is highly desirable.

• Strong understanding of data pipelines and training custom LLMs/fine-tuning models based on proprietary datasets (like call recordings).

• Demonstrable experience integrating AI models with external business APIs, specifically CRM and payment processors.

• Deep expertise in prompt engineering and conversational design principles geared towards direct response or sales outcomes.

• Experience in setting up and analyzing A/B testing metrics for AI-driven conversion improvements.

• Familiarity with telephony APIs (e.g., Twilio, Vonage) and voice synthesis/cloning technologies.

Why Magik?

This is a fully remote opportunity to apply advanced AI techniques to direct revenue generation at a scale rarely seen within a large, established health and wellness eCommerce brand. You will be instrumental in defining the future of our sales organization and directly impacting the company's growth trajectory.