Senior AI EngineerXtnsion.AI • Surat, IN
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Senior AI Engineer
Xtnsion.AI • Surat, IN
4 days ago
Job descriptionArchitect the agentic workflow engine (reasoning, memory, tool use) Build real-time voice + chat agents using STT / TTS + LLMs Create deep integrations with CRMs, schedulers, helpdesks, databases Design scalable backend + infra for multi-channel agents Prototype fast, ship fast, and iterate with real customer feedback Work directly with the founder on product + architecture Lay the engineering foundation for the next 6–12 months of growth 4–7+ years of engineering experience Strong backend fundamentals (Python preferred) Deep understanding of full-stack system design — backend services, SQL data modeling, and production-grade Python engineering Expert-level understanding of APIs — requests, auth flows, webhook systems, rate limits, and complex third-party integrations Hands-on with LLM APIs, LangChain / LangGraph, agent orchestration Strong grasp of Generative AI fundamentals — RAG, embeddings, retrieval design, structured outputs, and tool-using agents Experience deploying and maintaining production systems — Docker, servers, environment management, and dev / stage / prod setups Architectural intuition around scalable systems — queues / workers, caching, load balancing, service boundaries, and latency-aware design Experience with chat / voice systems or workflow automation Comfortable using AI-augmented developer tools (Cursor, ChatGPT, Gemini, Claude) to accelerate prototyping and development Comfortable integrating complex APIs Thrive in zero-to-one environments, ambiguity, and high ownership Direct collaboration with the founder Massive ownership and zero bureaucracy Build systems that thousands will interact with daily Remote-first, flexible, output-driven culture Path to Lead Engineer / Head of Engineering
About Us
Xtnsion.AI is building the agentic CX layer for modern businesses — AI voice + chat agents that autonomously handle bookings, lead follow-up, support workflows, CRM actions, and more across phone, WhatsApp, SMS, email, and web chat.
Our agents understand intent, retrieve context, take actions, and close loops — not just respond.
We’re growing fast across healthcare, clinics, D2C, and global SMBs, and we’re hiring a senior builder to help architect our core platform from the ground up.
About the Role
We’re looking for a Senior AI Engineer (Founding Team) who loves building 0→1 products, thrives in chaos, and wants to work directly with the founder to architect and ship real agentic AI systems.
You’ll design and build :
- Real-time voice + chat agents
- Agentic reasoning and workflows
- Memory + state management
- Deep API integrations (CRM, scheduling, support tools)
- Scalable backend + infra for AI systems
This is a high-ownership, high-autonomy, zero-bureaucracy role.
What You’ll Own
What You Bring
Why You’ll Love This
If you’re a builder, problem-solver, and 0→1 engineer, let’s talk.
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Senior Ai Engineer • Surat, IN
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