Senior / Staff Backend Engineer (+ Equity) at Fast-growing AI FinTech startup

Senior / Staff Backend Engineer Company Description

Fast-growing AI FinTech startup

Job Description

You will join a lean, ambitious team building a category-defining AI operating system for private capital markets. As a senior engineer, you will own features from conception to production, designing robust backend services and agentic frameworks that help top-tier investment firms process complex data and unlock deeper financial insights at scale.

Location

London, UK

Why this role is remarkable

• Work directly with a founding team backed by top-tier VCs and industry executives from leading global investment firms.
• Massive growth trajectory with significant product-market fit and a rapidly expanding international customer base in the US and Europe.
• High-impact opportunity to shape the technical vision of an ultra-growth venture while participating in substantial equity upside.

What you will do

• Design and implement new capabilities for an autonomous agentic framework to achieve human-level analytical expertise.
• Build and maintain scalable data pipelines for ingesting, processing, and indexing large volumes of complex documents.
• Develop performant, streaming-first APIs and distributed systems that power the core platform's decision making engine.

The ideal candidate

• 4+ years of software engineering experience at a venture-backed startup or top tier technology firm.
• Deep technical expertise in Python, FastAPI, and distributed systems like Postgres, ElasticSearch, and message queues.
• Proven track record of taking complex products from ideation to production in a fast paced, high velocity environment.