Junior AI Engineer - Travel Discovery Platform

About the role

Eighty Days is building a map-based travel discovery platform that brings recommendations from social media, search and private conversations together. As a Junior AI Engineer in Mumbai, you will own production AI features for a new travel discovery product, working closely with the founder on conversations, recommendations and LLM infrastructure. The work is on-site in Mumbai.

Key responsibilities

• Design, build and improve LLM-powered chat, content understanding and recommendation features on the NestJS and TypeScript backend.
• Own orchestration, tool calling, memory and evaluation for reliable agents and multi-step pipelines.
• Select and route proprietary and open-source models based on quality, latency and cost.
• Build RAG systems using embeddings, Qdrant, Elasticsearch and MongoDB to ground responses in first-party data.
• Improve production performance with SSE streaming, prompt caching, token budgets, Redis session state and SQS-based processing.
• Build automated tests and evaluation datasets from real user queries to track relevance, response quality and groundedness.
• Monitor production behaviour and iterate on features with the founder, backend engineers and product team.

Required profile

• 2 years of software engineering experience with strong TypeScript and Node.js skills; NestJS experience preferred.
• At least one LLM-powered feature shipped to production, such as an assistant, RAG system or content extraction pipeline.
• Hands-on experience with Gemini, OpenAI or Anthropic APIs, including prompt design, structured outputs, tool calling and streaming.
• Working knowledge of embeddings, vector search and RAG patterns.
• Production experience with MongoDB, Elasticsearch or Redis.
• Bachelor's degree in Computer Science, Engineering or a related field, or equivalent practical experience.
• Bonus: LLM evaluation pipelines, LangGraph, LangChain, MCP, prompt caching, model routing or cost optimisation; WhatsApp Cloud API, Instagram Graph API or experience at an AI-focused startup.

Required skills

• TypeScript and Node.js
• NestJS (preferred)
• LLM APIs (Gemini, OpenAI, Anthropic)
• RAG, embeddings and vector search
• MongoDB, Elasticsearch, Redis
• AWS basics (EC2, Beanstalk, S3, SQS)