VirtueTech Recruitment Group
AI Researcher
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FinTech Start-up Seeks AI Researcher
A FinTech start-up is looking for an AI Researcher with deep model infrastructure knowledge to work on complex issues regarding the trading industry.
About the Company
They are transforming this space with a CEO at the helm who has spent years in the industry before taking on the Tech start-up world to solve some of the common downfalls in the industry from a technology perspective. Backed by one of the biggest energy traders in the world, this business has stability but also the resources to go forwards and expand.
You get to work up close with founders and the founding engineering team with significant ownership over how problems are solved, in fact, you'd be their first hire in this role and working closely with the CEO.
Role Overview
This is not an AI wrapper or prompt engineering role. They’re looking for someone who has genuinely worked with ML models and researched into what the current trends are from either a scientist or researcher perspective.
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What You’ll Be Working On
- Developing and deploying LLM-powered systems using PyTorch
- Working directly with the CEO on synthesising training corpora
- Handling datasets and mainly dataset regularisation
- Being able to showcase knowledge into linear attention mechanisms (e.g. gated delta nets)
- Emphasising diffusion speculators
- Dealing with MoE routing collapse
What We're Looking For
You’ll ideally have hands-on experience with several of the following:
- PyTorch
- Transformer-based models such as BERT, RoBERTa, Llama, etc.
- LLM fine-tuning
- LoRA / QLoRA / PEFT
- Embedding models
- Reranking / cross-encoder models
- Synthesising training corpora
- Dataset regularisation
- Gated Delta Nets or other Linear Attention mechanism knowledge
- Speculative decoding
- Routing or network collapse - MoE
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Please note that academic, research, or R&D experience is absolutely relevant.
Experience with RAG is useful, but this isn't a role for someone whose experience is primarily connecting APIs together with LangChain or similar frameworks.
I am particularly interested in people who understand what is happening underneath the RAG stack, how embeddings are trained and evaluated, how retrieval works, how re-rankers work, how training data is created, and how models can be improved through experimentation.
Job Details
- Location: London
- Working Hours: 4 days a week hybrid
- Salary: Up to the £110k + bonus mark on the top of the band
If interested, please apply or email me directly at tomasz@virtuetech.io.
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