Join Our Remote Data Products & Machine Learning Startup

At Muttdata, we build innovative Data Products and Machine Learning solutions that help companies solve complex business challenges. As a fast-growing, remote-first startup, we're passionate about technology, collaboration, and continuous learning.

AI Backend Engineer Senior

We are looking for an AI Backend Engineer Senior to join our team and work within the AI Platform team of a large-scale organization. This team builds the platform other teams use to create AI agents: SDKs, backend services, MCP servers, and a unified inference layer. Your users are other developers, so part of the job is supporting them through adoption.

Responsibilities
- Design and develop backend services and agents using LangChain and LangGraph.
- Manage the agent lifecycle, from development and deployment to observability, monitoring, and continuous improvement.
- Build and maintain cross-team SDKs.
- Develop, publish, and secure MCP servers, including their authentication.
- Unify agent inference through LiteLLM or a similar proxy.




- Implement guardrails, PII masking, and Agent Skills.
- Build and optimize RAG pipelines, vector databases, and context management.
- Support the teams that consume the platform, helping them adopt it and unblocking them along the way.

Required Skills
- 5+ years of backend development experience and 2+ years working with agentic AI.
- Strong command of Python and FastAPI (or similar frameworks).
- Experience with LangChain, LangGraph, and modern agent-building stacks.
- Solid knowledge of MCP across its full lifecycle (development, publishing, and authentication).
- Experience with LiteLLM or similar proxies.
- Experience with vector databases, RAG, and context optimization.
- Knowledge of guardrails, PII masking, and Agent Skills.
- Experience building and maintaining SDKs.
- Ease supporting other developers.
- Stack: Python, FastAPI, LangChain, LangGraph, Langfuse, MCP, LiteLLM.

Nice to have
- Ty

📌 AI Backend Engineer #2 (Buenos Aires)
🏢 Muttdata
📍 Buenos Aires