Jack & Jill
AI Infrastructure Engineer (+ Equity) at Machenta
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Job Title
AI Infrastructure Engineer
Salary
Not Disclosed + Equity
Company Description
Machenta is an elite London-based AI startup that recently raised a $40m seed round—the largest robotics seed in UK history—backed by Union Square Ventures and Creandum to build frontier models for robot learning.
Job Description
As a senior engineer at Machenta, you will own the design and optimization of large-scale AI training infrastructure. You will scale model training across GPU clusters, ensuring compute efficiency and high throughput. This hands-on role involves building distributed systems to enable robots to learn tasks from a single demonstration at human-level speeds.
Location
London, UK
Why this role is remarkable
- Join a world-class founding team from Imperial College London’s Robot Learning Lab to build a breakthrough frontier model for robotics.
- Work with significant resources following a record-breaking $40m seed round backed by premier investors like Union Square Ventures and Creandum.
- Gain rare early-stage ownership and generous equity in a talent-dense startup moving into a state-of-the-art lab space in King's Cross.
What You Will Do
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- Design and optimize large-scale distributed training systems using PyTorch, NCCL, DeepSpeed, and Megatron-LM across hundreds of GPUs.
- Scale training on cloud infrastructure (AWS) while maximizing GPU utilization and throughput for modern accelerators like H100s and B200s.
- Profile and optimize the full training stack, including networking, storage, and data pipelines, to ensure maximum efficiency of the compute budget.
The ideal candidate
- Proven experience building and optimizing distributed training systems for large transformer-based neural networks across tens or hundreds of GPUs.
- Deep technical understanding of the AI hardware/software stack and performance profiling for modern accelerators such as NVIDIA H100/H200 series.
- Strong background in managing large-scale data pipelines and cloud infrastructure, ideally with experience training models on image or point cloud data.
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.
Get help with your application
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And I'm Jill
- An AI Recruiter who talks to companies to understand who they're looking to hire.
- Recruits from Jack's network, making an introduction when I spot an excellent candidate.
How does this work?
Jack's an AI agent for job searching and career coaching.
- He works for you.
Jill is the AI recruiter working for the company.
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She recruits from Jack's network.
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If it's a match and the company wants to meet you, they'll make the intro.
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In the meantime, if you'd like, Jack will send you excellent alternatives.
We never post fake jobs
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This isn't a trick. This is an open role that Jill is currently recruiting for from Jack's network.
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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.
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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.
“It took my CV and asked me questions relevant to understanding what kind of jobs to suggest for me. Suggestions were almost perfect. Jobs were exactly what I’ve been looking for.”
Jessica, London
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