LLM Agent Engineer (Freelance, Remote) (Cardiff)

LLM Agent Engineer (Freelance, Remote) (Cardiff)

Freelance 40000 - 50000 € / year (est.) Home office possible
Outlier AI

At a Glance

  • Tasks: Help shape the future of AI by training advanced language models and optimising workflows.
  • Company: Join Outlier, a leader in AI innovation with a focus on collaboration.
  • Benefits: Enjoy remote work flexibility and the chance to work on cutting-edge projects.
  • Other info: Great opportunity for career growth and to work with leading AI organisations.
  • Why this job: Make a real impact in the AI field while developing your skills in a dynamic environment.
  • Qualifications: 2+ years in backend engineering or AI automation; strong coding skills required.

The predicted salary is between 40000 - 50000 € per year.

Outlier helps the world’s most innovative companies improve their AI agents by providing human feedback. Do you want to shape the future of autonomous agents like OpenClaw? We collaborate with leading AI organizations to train Large Language Models (LLMs) to function as proactive, multi-step agents. Our projects focus on teaching these systems how to design, coordinate, and optimize complex, real-world architectural workflows.

Whether you are a passionate orchestration guru or experienced software developer — we want you to help us train the world's most advanced generative systems.

Ideal Qualifications
  • 2+ years of experience in backend engineering, AI automation, or complex systems integration.
  • Proven ability to build and maintain production-grade software with modular separation (e.g., distinct services for data parsing, logic processing, and reporting).
  • Strong command of at least two major languages (e.g., Python, JavaScript, Go, or Java) and experience working with SQL databases.
  • Practical experience building for live, non-mocked environments and handling multi-turn system interactions.
  • Outstanding attention to detail and the ability to provide clear, high-density technical feedback on complex system behaviors.
Nice to have
  • Expertise building multi-stage coordination tasks where data acquisition leads to reasoned output.
  • Hands-on experience integrating agents with live tools such as Supabase, Gmail, and various APIs to solve real-world problems.
  • High level of comfort implementing persistent state and session discovery using to track agent progress.
  • Experience identifying subtle failures like privacy leaks, authority escalation, or indirect prompt injections.

Remote working/work at home options are available for this role.

LLM Agent Engineer (Freelance, Remote) (Cardiff) employer: Outlier AI

Outlier is an exceptional employer that fosters a collaborative and innovative work culture, allowing you to contribute to cutting-edge AI projects from the comfort of your home in Cardiff. With a strong emphasis on employee growth, we provide opportunities for continuous learning and development in the rapidly evolving field of AI, making it a rewarding place for passionate engineers to thrive.

Outlier AI

Contact Detail:

Outlier AI Recruiting Team

StudySmarter Expert Advice🤫

We think this is how you could land LLM Agent Engineer (Freelance, Remote) (Cardiff)

Tip Number 1

Network like a pro! Reach out to folks in the AI and engineering space on LinkedIn or at meetups. We can’t stress enough how personal connections can open doors that applications alone can’t.

Tip Number 2

Show off your skills! Create a portfolio showcasing your projects, especially those involving LLMs or backend engineering. We love seeing real-world applications of your expertise, so make it shine!

Tip Number 3

Prepare for interviews by brushing up on common technical questions related to AI and software development. We recommend practicing coding challenges and discussing your past projects to demonstrate your problem-solving skills.

Tip Number 4

Don’t forget to apply through our website! It’s the best way to ensure your application gets seen. Plus, we’re always on the lookout for passionate individuals ready to shape the future of AI agents.

We think you need these skills to ace LLM Agent Engineer (Freelance, Remote) (Cardiff)

Backend Engineering
AI Automation
Complex Systems Integration
Production-Grade Software Development
Modular Software Architecture
Python
JavaScript

Some tips for your application 🫡

Tailor Your Application:Make sure to customise your CV and cover letter for the LLM Agent Engineer role. Highlight your experience in backend engineering and AI automation, and don’t forget to mention any relevant projects that showcase your skills with languages like Python or Java.

Showcase Your Experience:We want to see your hands-on experience! Include specific examples of how you've built and maintained production-grade software. If you've worked with SQL databases or integrated agents with live tools, make that clear in your application.

Be Clear and Concise:When writing your application, clarity is key. Use straightforward language and avoid jargon where possible. We appreciate high-density technical feedback, so if you can explain complex system behaviours simply, you're on the right track!

Apply Through Our Website:Don’t forget to submit your application through our website! It’s the best way for us to receive your details and ensures you’re considered for the role. Plus, it shows you’re keen to join our team at StudySmarter!

How to prepare for a job interview at Outlier AI

Know Your Tech Inside Out

Make sure you’re well-versed in the programming languages mentioned in the job description, like Python or JavaScript. Brush up on your SQL skills too, as you'll likely need to discuss how you've used these technologies in real-world scenarios.

Showcase Your Problem-Solving Skills

Prepare examples of complex systems you've integrated or automated. Be ready to explain your thought process and how you tackled challenges, especially in live environments. This will demonstrate your hands-on experience and ability to think critically.

Highlight Attention to Detail

Since the role requires providing clear technical feedback, come prepared with specific instances where your attention to detail made a difference. Discuss any subtle failures you've identified in past projects and how you resolved them.

Familiarise Yourself with Real-World Applications

Research how AI agents are currently being used in various industries. Be ready to discuss how you can contribute to projects like OpenClaw and how your experience aligns with their goals. This shows your enthusiasm and understanding of the field.