Location: Sector V, Kolkata, India
Employment Type: Full-Time
Experience: 5 – 12 Years
Salary Range: ₹40,00,000 – ₹60,00,000 per annum
Company: Sourcedesk Global
About the Role
We are seeking an experienced AI/ML Technical Lead to architect and drive the development of our next-generation intelligent conversation engine. This is a foundational technical leadership role, responsible for shaping the AI architecture, model workflows, and scalable deployment of LLM-powered text and voice agents. You’ll work across the stack—from RAG pipelines and fine-tuning to multimodal orchestration—to bring truly intelligent conversational experiences to life.
Key Responsibilities
AI System Architecture
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Design the end-to-end architecture of AI-powered agents including LLM-based conversation workflows, voice bots, and context orchestration.
Model Integration & Prompt Engineering
- Integrate APIs from OpenAI, Anthropic, or deploy open-source models (LLaMA 3, Mistral).
- Implement prompt strategies and retrieval-augmented generation (RAG) pipelines for contextual and personalized responses.
Data Pipelines & Knowledge Management
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Build secure pipelines to ingest, embed, and serve tenant-specific knowledge bases (FAQs, product docs) using vector databases like Pinecone or Weaviate.
Voice & Text Interfaces
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Implement and optimize multimodal agents (text + voice) using ASR (e.g., Whisper), TTS (e.g., Amazon Polly), and NLP for automated qualification and call handling.
Conversational Flow Orchestration
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Design dynamic, stateful conversations that can take intelligent actions (e.g., book meetings, update CRM records) using LangChain, Temporal, or n8n.
Platform Scalability
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Ensure models and agent workflows scale across tenants with strong data isolation, caching, and secure API access.
Leadership & Collaboration
- Lead a cross-functional engineering team (backend, frontend, DevOps) to deliver production-grade AI features.
- Define monitoring strategies, analytics pipelines, and feedback loops to improve AI quality continuously.
Qualifications
Must-Have Skills
- 5+ years of experience in Machine Learning / AI, with at least 2 years leading LLM or Conversational AI projects.
- Strong foundation in NLP, dialog systems, or voice AI, with proven production experience.
- Expertise in Python and ML frameworks such as PyTorch, TensorFlow, or Hugging Face Transformers.
- Experience building and deploying RAG pipelines, vector databases (Pinecone, Weaviate), and LLM agent logic.
- Experience with OpenAI, Anthropic, or open-source LLMs (LLaMA, Mistral, Falcon).
- Familiarity with voice processing technologies (ASR, TTS, IVR).
- Solid understanding of microservices, APIs, and distributed architecture.
- Deep commitment to data privacy, security, and ethical AI.
Nice-to-Have Skills
- Knowledge of CRM ecosystems (Salesforce, HubSpot) and sales automation workflows.
- Familiarity with Twilio APIs (Voice, SMS, WhatsApp) and channel orchestration.
- Experience with calendar integrations (Google Calendar API, Microsoft Graph).
- Hands-on with Docker, Kubernetes, CI/CD, and AWS/GCP/Azure infrastructure.
What We Offer
Founding-team level role with strong ownership and autonomy
Opportunity to shape the future of AI-powered conversational platforms
Flexible, collaborative work environment
Competitive salary and performance-based rewards
Access to cutting-edge AI tools, research, and resources