Job Title: Junior AI Engineer
Location: London (hybrid – meet 1–2 times per month)
Type: Permanent
Salary: £40,000 + stock options
Interview Process: 2–3 stages
We’re hiring for a founding AI Engineer to join a startup building AI agent infrastructure for regulated industries. They are a Seed stage company backed by a Leading London VC and you will work closely with the CTO who is a previously exited AI Founder. The product already has an MVP and a fine-tuned LLM. The next step is scaling the organisation as they look to move towards their Series A.
Please only apply if you have a Masters + in Computer Science
What you’ll do
* Build and fine-tune AI models (LLMs and transformer-based architectures).
* Work directly with customers to integrate and test new features.
* Develop and improve core components of the AI agent framework.
* Gather and act on client feedback to enhance product performance.
* Take part in design and architecture discussions.
About you
* Master’s or PhD in AI, Machine Learning, Data Science, or Computer Science (Russell Group or similar).
* Strong Python skills (Pandas, NumPy).
* Experience or exposure to NLP, transformers, and LLMs.
* Familiarity with ML tools like Weights & Biases or MLflow is a plus.
* Curious, proactive, and confident working independently.
* Ideally based near London for occasional client visits.
📩 Interested? Message me here or email mmatysik@trg-uk.com