AI Engineer (Autonomous Agents, Voice and MCP)

About the Role

PraajX Private Limited is building an autonomous AI agent that takes voice commands and carries out real business work on its own, such as making calls and running ads. This is not a role for freshers or for someone learning on the job. You will build this agent from the ground up. You decide how to build it, you build it end to end, and you own it for the long term.

Key Responsibilities

• Build an autonomous AI agent that understands voice commands and takes action on its own.
• Design and build MCP servers and tool integrations so the agent can operate real business tools.
• Enable the agent to act: place and handle phone calls, create and run ad campaigns, and carry out other everyday business tasks.
• Build realtime voice pipelines (speech-to-text, LLM, text-to-speech) with low latency, supporting Indian accents and languages.
• Build the agent core: planning, tool calling, background task execution, retries, and memory.
• Add guardrails so the agent asks for confirmation before irreversible actions such as spending ad budget, payments, or calls, and defend against prompt injection.
• Build evaluations, monitoring, and cost and latency controls, so quality is measured and not assumed.
• Turn the founder's requirements into working software without needing detailed specifications.
• Own the system long term: architecture, reliability, security, and documentation.

Requirements & Tech Stack

• Strong in Python or Node.js/TypeScript.
• Experience with tool calling, structured outputs, asynchronous jobs, and MCP or similar tool-integration protocols.
• Understands security for connected business accounts: OAuth, token storage, and least-privilege access.

Qualifications

• Significant hands-on experience building and shipping production software, including at least one LLM-based agent or voice product used by real users.
• Able to build alone, end to end: backend, APIs, integrations, and deployment, without a large team or detailed specs.
• Experience with realtime voice or telephony, or a working project that shows you can learn it quickly.
• Based in Pune, or ready to relocate to Pune for this on-site role.
• Can show a live product, repository, or demo you built and explain every major decision.

Nice to have:

• Experience with advertising platform APIs such as Meta or Google Ads.
• Telephony or SIP integration experience.
• Indian-language speech recognition or text-to-speech.
• Early-stage startup experience as one of the first engineers.