Full-time

Senior Software Engineer

Posted by Promote Project • Lisboa, Lisboa, Portugal

📍 Lisboa, Lisboa 🕒 February 28, 2026

About the Role

We are Fluxon, a product development team founded by ex-Googlers and startup founders. We offer full-cycle software development: from ideation and design to build and go‑to‑market. We partner with visionary companies, ranging from fast growing startups to tech leaders like Google and Stripe, to turn bold ideas into products with the power to transform the world.

The role is open to candidates based in Portugal, preferably in Lisbon.

About the role

As an AI Engineer at Fluxon, you’ll take the lead in designing, building and deploying AI-powered applications for our clients.

Responsibilities

  • System Architecture : Design and implement end-to-end AI systems and their parts, including data ingestion, preprocessing, model inference, and output structuring
  • Generative AI Development : Build and optimize RAG (Retrieval-Augmented Generation) systems and agentic workflows using frameworks like LangChain, LangGraph, ADK (A...

Ready to Apply?

Submit your application today and take the next step in your career journey with Promote Project.

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