Oliver Bernard
Applied AI Engineer / Data Scientist - London - FinTech Start-up
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Applied AI Engineer/Data Scientist | London | £90k + Equity | Pre-Seed FinTech 🚀
OB have recently partnered with a London-based FinTech currently raising their pre-seed round, looking for an experienced AI/Data Science hire to join their small team as they enter their next stage of growth.
About the Role
This is very much a build, ship and own environment. You’ll be working on the hard problems behind financial data automation, extracting and matching information often from messy, unstructured data.
Technical Challenges
- 🧠 LLMs in production
- 📊 Confidence scoring & threshold calibration
- 🔄 Solving cold-start problems
- 🧪 Building evaluation infrastructure and harnesses
- ⚙️ Production-first ML systems
- 💡 Designing structure in an inherently ambiguous environment
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They’re AI-native from the ground up, treating LLMs as infrastructure rather than simply adding AI features to an existing product.
Ideal Background
- 3+ years shipping applied ML/AI into production
- Strong Python
- Proven hands-on experience with LLMs in production
- Built evaluation frameworks/harnesses
- Experience in FinTech, LegalTech, Insurance or another regulated environment
- Comfortable with ambiguity and high levels of autonomy
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The Opportunity
- 💰 Up to £90k + meaningful equity
- 📍 3–4 days a week in London
- 🌴 Unlimited holiday
- 🤝 Small, high-trust team
- 🚀 Join at the very beginning of the company's growth journey
If you're looking for an opportunity where your work will directly shape the AI product and engineering culture, I'd love to speak.
Apply below for more details.
FinTech | Early-Stage start-up | London | Data Science | AI | LLMs
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