Startup jobs in United Kingdom

Job Description

Senior AI Engineer / Data Scientist

You are accountable for the quality of our AI output. Your are responsible for the design, experimentation, and deployment of cutting-edge AI solutions that directly impact our customers. Collaborate with leadership, customers, and product teams to solve real business challenges and drive innovation.

Your Misson

Elevate our AI capabilities - take a good system and make it exceptional. You'll identify opportunities, run experiments, and deliver robust solutions that continuously improve our platform.

What Success Looks Like

• AI outputs are consistently accurate, actionable, and valuable to customers.
• Rapid iteration leads to product-market fit and scalable solutions.
• The system adapts and improves through direct user and customer feedback.

What You Bring

• Your curiosity lets you ask what if, and surprise us again, and again.
• Proven track record delivering impactful ML/AI solutions in production.
• Deep expertise in Python and modern AI/ML frameworks (e.g., PyTorch, TensorFlow, scikit-learn, NumPy, Pandas).
• Hands-on experience with GenAI, agentic AI, and automated testing for AI systems.
• Curiosity and creativity to challenge assumptions and explore new approaches.
• Strong communication skills and a passion for clear, concise documentation.
• Adaptability and pragmatism in fast-paced, ambiguous environments.

What's In It For You?

• Lead the evolution from MVP to a market-leading product.
• Significant autonomy and ownership across the platform.
• Accelerate your growth by tackling diverse, high-impact challenges.
• Thrive in a culture that values innovation, learning, and continuous improvement.

Our Tech Stack

• Frontend: React
• Backend: Nest.js, Python/fastapi, LangChain

Test Automation: Pact, Jest, Cypress, and Pytest (including AI test automation)

• Infrastructure: AWS ECS, PostgreSQL, Kafka (migrating from RabbitMQ)
• Infrastructure as Code: Terraform (using AWS services where possible)
• CI/CD: GitHub-based tooling

Our Engineering Culture

• We believe speed comes from quality, automation, and solving the right problems.
• We always leave things better than we found them.
• We start with the end in mind.
• We iterate quickly.
• If you build it, you fix it.
• We trust each other and ask for help.
• If you’re in a hole, stop digging.

About Us

We’re a well-funded, early-stage London-based startup on a mission to revolutionize compliance for banks and fintechs with cutting-edge, AI-powered regtech solutions. We’re building a product and engineering team to drive the platform in an agile way, using AI and ML at its core, enabled by microservice running in AWS. We aim for full CI/CD, deploying as soon as tests are green.

We value clarity, transparency, and craftsmanship in everything we do. We believe that speed comes from doing things right, and we encourage creative use of AI, not just in our products, but in every aspect of how we work.

Our London office is a hub for collaboration, and we embrace flexibility and remote work for most days. If you are not in London, or not even the UK, we will make that work too.

## What We Offer

• Competitive compensation tailored to senior talent.
• Flexible working arrangements (hybrid London or remote).
• End-to-end ownership of impactful, open-ended challenges.
• Significant influence over technical and product direction.
• Supportive, achievement-driven environment that values curiosity, ownership and clarity.
• Top-tier tooling and access to the latest AI resources.
• Direct collaboration with founders and senior leadership.