Senior AI Engineer - Data Platform

One of the UK’s fastest-growing fintech companies

London (Hybrid)

Up to £125k + Benefits

Omnis Partners is exclusively partnering with a fintech building the next-generation self-serve data platform that powers billions in transactions for tens of thousands of merchants across Europe. This platform lets product, engineering, and analytics teams own, process, and act on their data independently and you’ll be at the heart of it.

Why this role stands out

• High-impact: Your work powers real-time payments and business-critical insights
• Cutting-edge tech stack: Flink, Kubernetes, AWS & GCP, event-driven pipelines
• ⚡ Autonomy: Build self-serve tools and shape the platform architecture
• AI exposure: Work on systems ready for ML models and AI agents
• Cross-functional influence: Partner with engineers, product teams, and stakeholders to define and deliver solutions

What you’ll do

• Build microservices, libraries, and real-time data pipelines.
• Develop self-serve tooling for internal teams, improving developer experience and platform adoption.
• Operate and scale systems across multi-cloud environments.
• Collaborate with technical and non-technical teams to define upstream data contracts.
• Explore and integrate new technologies, with optional exposure to AI/ML agents.

What we’re looking for

• Hands-on experience in Java, Python, or Go building scalable backend systems.
• Knowledge of Kubernetes, cloud infrastructure, and event-driven pipelines.
• Strong problem-solving skills and systems thinking.
• Collaborative approach, able to influence technical and non-technical stakeholders.
• Curious, relentless, and customer-obsessed mindset.
• Exposure to AI/ML pipelines or agents is a strong plus.

Why join?

• Hyper-growth fintech disrupting payments in Europe.
• Build infrastructure that directly impacts the business, your work matters.
• Full autonomy to choose the tech and shape the platform.
• Collaborate with world-class engineers solving real-time, high-scale challenges.
• Office-first culture with focus, collaboration, and big ideas.