This is a job that Jill, our AI Recruiter, is recruiting for on behalf of one of our customers.
She will pick the best candidates from Jack's network.

The next step is to speak to Jack.

Senior Machine Learning Engineer

Company Description: VC-backed healthtech startup

Job Description:
You will be one of the first hires at a mission-driven startup redefining personalized healthcare. By leveraging rich voice and text data, you will build and fine-tune machine learning models and LLM-integrated APIs. Your work will bridge the gap between cutting-edge AI and human care to empower providers and patients.

Location: London, UK or Helsinki, Finland

Why this role is remarkable:

• Join as a foundational hire with the autonomy to shape the core technical infrastructure of a growing business from the ground up.

• Work on a product that genuinely improves lives by blending human medical wisdom with the frontier of generative AI technology.

• Supported by top-tier VCs, you will enjoy a high-growth environment with significant stock options and the chance to lead R&D efforts.

What you will do:

• Develop and prototype new machine learning systems and LLM applications using unique proprietary healthcare datasets.

• Fine-tune existing models to optimize performance for specific clinical contexts and secure API integrations.

• Collaborate with cross-functional teams to ship impactful features quickly while ensuring safety and technical rigor.

The ideal candidate:

• Strong background in Python and ML libraries like PyTorch or TensorFlow, with experience in supervised and reinforcement learning.

• Hands-on expertise in fine-tuning Large Language Models, prompt engineering, and deploying models within cloud environments like AWS.

• Proactive startup mindset with a demonstrated ability to solve complex, real-world problems and communicate technical concepts clearly.

Who are Jack & Jill?

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.

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.

Next steps

Step 1. Visit our website.
Step 2. Click 'Talk to Jack'.
Step 3. Talk to Jack so he can understand your experience and ambitions.
Step 4. Jack will make sure Jill (the AI agent working for the company) considers you for this role.
Step 5. If Jill thinks you're a great fit and her client wants to meet you, they will make the introduction.
Step 6. If not, Jack will find you excellent alternatives. All for free.

We never post fake jobs

This isn't a trick. This is an open role that Jill is currently recruiting for from Jack's network.
Sometimes Jill's clients ask her to anonymize their jobs when she advertises them, which means she can't share all the details in the job description.
We appreciate this can make them look a bit suspect, but there isn't much we can do about it.

Give Jack a spin! You could land this role. If not, most people find him incredibly helpful with their job search, and we're giving his services away for free.