Summary
✨ AI‑Generated
A senior backend engineering role focused on creating scalable Python services, APIs, and new platforms for data-intensive financial applications.
Highlights
Build new backend platforms in a high-growth environment with strong compensation, equity, and opportunities for technical ownership.
Description
Senior Python Engineer | Backend, Product Engineering | FastAPI, GraphQL | AI FinTech, Series C | Greenfield Build | London Hybrid | Up to £125k + Equity | Work Abroad 90 Days/Year
The Company
We're working with a highly successful, fast-scaling AI FinTech transforming how data and workflows operate across global financial markets.
Their platform is already trusted by 300+ companies worldwide, including global banks, private equity firms and asset managers.
Following significant growth and Series C funding, they're now heavily investing in new products and international expansion - including a completely greenfield product build requiring a new backend platform from the ground up for a Mobile app build.
The Role | Senior Python Engineer | Backend, Product Engineering | FastAPI, GraphQL | AI FinTech, Series C | Greenfield Build | London Hybrid | Up to £125k + Equity | Work Abroad 90 Days/Year
You'll join an experienced engineering organisation but work on a greenfield product, taking significant ownership of the backend systems and APIs that power it.
This is a product engineering role, rather than purely backend delivery.
You'll work closely with Product, Mobile, AI and Data teams to understand customer problems and build solutions end-to-end.
You'll be working across areas including:
Building backend services primarily with Python / FastAPIDesigning high-performance APIs and GraphQL servicesOwning systems and features from idea → architecture → productionWorking across complex data, distributed systems and financial datasetsBuilding products that allow customers to make real-time decisions within financial marketsHelping shape the architecture and technical direction of a completely new product
What We're Looking | Senior Python Engineer | Backend, Product Engineering | FastAPI, GraphQL | AI FinTech, Series C | Greenfield Build | London Hybrid | Up to £125k + Equity | Work Abroad 90 Days/Year
Strong commercial experience building backend systems with PythonExperience with FastAPI, Django, Flask or similarStrong understanding of API design, GraphQL and distributed systemsExperience building complex, data-intensive productsComfortable with AWS, Kubernetes and modern cloud infrastructureA genuine product engineering mindset - thinking beyond tickets and understanding the customer problemEvidence of owning technically challenging projects end-to-endComfortable operating with ambiguity and making pragmatic engineering decisions
Experience building BFFs, mobile-facing APIs or working closely with mobile teams would be beneficial, but isn't essential.
What's On Offer | Senior Python Engineer | Backend, Product Engineering | FastAPI, GraphQL | AI FinTech, Series C | Greenfield Build | London Hybrid | Up to £125k + Equity | Work Abroad 90 Days/Year
Up to £125,000 base salary + equityUp to 7% pensionPrivate medical insuranceHybrid working - 2 days per week in LondonWork abroad for up to 3 months per yearGreenfield engineering with significant technical and product ownership
If you're a strong Python Backend / Product Engineer who enjoys building new products, owning problems end-to-end and working in high-performing engineering teams, apply today.
