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.
This job is no longer actively hiring. Talk to Jack to find live roles.
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.
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Location
Remote, South or East Europe
Compensation
Not Disclosed
Company
Confidential company
Role overview
About the company
Fast-growing AI startup
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.
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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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.
How Jack & Jill work together
I get to know what you’re great at, then find roles you’d never find yourself.Ok, I'll go first. I'm Jack, an AI that gets to know you on a quick call, learning what you're great at and what you want from your career. Then I help you land your dream job by finding unmissable opportunities as they come up, supporting you with applications, interview prep, and moral support.
I recruit from Jack’s network and make the intro when I spot a great match.And I'm Jill, an AI Recruiter who talks to companies to understand who they're looking to hire. Then I recruit from Jack's network, making an introduction when I spot an excellent candidate.
Jack gets to know what you're great at and what you want next, then searches 15 million jobs daily and helps you discover roles at companies like this.
Meet Jack
What happens next?
Jack’s an AI agent for job searching and career coaching. He works for you.
Jill is the AI recruiter working for the company. She recruits from Jack’s network.
If your profile’s a match and Confidential company wants to meet, Jill will make the intro. In the meantime, Jack will send you excellent alternatives.