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Senior Fullstack Engineer

Remote Bucharest
JavaScript Node.js TypeScript Express.js FastAPI LLM API
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Description

Senior Fullstack Engineer

Location: Bucharest

Department: Engineering

Location Type: REMOTE

Employment Type: CONTRACT

Our client is a business travel management platform that allows anyone to handle their own travel arrangements independently, eliminating unnecessary back-and-forth between teams and saving valuable time. It offers a fast, all-in-one solution for booking and managing every stage of a business trip in just a few clicks.

On average, it helps organizations reduce business travel expenses by about 25% compared to typical market rates for the same bookings.

We are currently assembling a team of developers who will focus on AI-native infrastructure and MCP interface development.


What we are looking for:

  • JavaScript/Node.js native, TypeScript expert-level proficiency mandatory

  • Production system design experience (reliability, observability, traceability)

  • Generative AI/LLM integration experience strongly preferred

  • Backend or full-stack orientation

Nice to have: Express.js, Fastify


What you'll do:

  • Building production-grade LLM integration (security, observability, cost tracking)

  • Developing MCP (Model Context Protocol) interface layer for AI-native API

  • Integrating LLM capabilities into travel booking platform


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