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Confidential company

Job listing

Remote, South or East EuropeNot Disclosed

AI Engineer at fast-growing AI startup

Are you ready to build on the frontier of applied AI? This well-funded startup is looking for an AI Engineer to fine-tune LLMs and architect autonomous agents. Based remotely in Europe, you'll have the autonomy to experiment with the latest research and ship AI-powered features that drive real-world impact. If you have 2+ years of experience with LLMs and a passion for RLHF, this is your chance to join a high-growth team backed by top-tier VCs and shape the future of autonomous systems.

Overview

Role overview

Join a high-growth team at the frontier of applied AI. You will fine-tune large language models, develop autonomous agents, and design sophisticated prompt systems to solve complex problems. This role is ideal for a proactive engineer who enjoys experimenting with cutting-edge capabilities and translating business requirements into impactful, AI-driven features.

Company

About the company

Fast-growing AI startup

Responsibilities

What you will do

  • Fine-tune and optimize LLMs using RLHF and advanced training paradigms for production use.
  • Design, build, and deploy autonomous AI agents that integrate with complex business APIs.
  • Evaluate and improve the performance, safety, and scalability of AI systems through prompt engineering.

Candidate profile

Who this is a fit for

  • Has 2+ years of hands-on experience with LLMs from OpenAI, Anthropic, or Hugging Face.
  • Possesses proven experience with model fine-tuning, reinforcement learning, and agent frameworks like LangChain.
  • Thrives in fast-paced startup environments and communicates complex technical ideas clearly to diverse stakeholders.

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What makes it remarkable

Why this role is remarkable

  • You will work on the bleeding edge of AI technology, including RLHF and agentic frameworks.
  • The company is a well-funded startup backed by top-tier VCs, offering high ownership and impact.
  • This is a rare opportunity to shape the core AI infrastructure of a rapidly scaling platform.

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