Senior Machine Learning Engineer at Series B VC-backed AI scaleup

She will pick the best candidates from Jack's network.

The next step is to speak to Jack.

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Job Title

Senior Machine Learning Engineer

Salary

Not Disclosed

Company Description

Series B VC-backed AI scaleup

Job Description

You will join a world-class R&D team building advanced speech recognition systems. This role bridges the gap between research and production, focusing on developing massive self-supervised models that process diverse audio data. You will push the boundaries of model inclusivity and accuracy while ensuring high-performance deployment across global infrastructure to solve complex real-world challenges.

Location

London, UK

Why this role is remarkable

• Work at the absolute frontier of speech technology, training high-impact models that handle massive volumes of global audio data.
• Join a well-funded Series B organization backed by top-tier VCs with a heritage of deep-tech innovation and academic excellence.
• Benefit from a mature hybrid culture that balances deep technical focus time with structured collaborative sessions and comprehensive family benefits.

• Lead complex R&D projects to train and scale large self-supervised speech models using state-of-the-art transformer architectures.
• Optimize distributed training processes across multi-node GPU clusters to improve model performance and training efficiency.
• Implement and deploy production-ready inference optimizations, ensuring models meet rigorous real-time serving requirements for enterprise clients.

• Extensive experience with modern ML architectures including Transformers, Flash Attention, and KV-caching in production or research environments.
• Proven track record of managing distributed training on multi-node GPU clusters and optimizing high-throughput, low-latency inference systems.
• Strong engagement with the ML community through technical publications, open-source contributions, or advanced research in audio or related fields.

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 the job listing.

Step 2. Click 'Talk to Jack', or go straight there: https://www.jackandjill.ai/jobs/senior-machine-learning-engineer-at-series-b-vc-backed-ai-scaleup-4e99193c-8a8e-4ac8-9586-a41a426e0cb6?utm_source=linkedin&utm_medium=job_post&utm_campaign=featured_role_4e99193c-8a8e-4ac8-9586-a41a426e0cb6

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.