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Principal Software Engineer Python - Fintech

Company

Client Server

Location

London, England

Posted

June 27, 2026

Position Overview

Principal Software Engineer / Developer (Python AWS) London / WFH to Β£150k

Join a high-growth, VC-backed Fintech building a market-leading analytics platform used by Hedge Funds, Asset Managers and global financial institutions.

As a Principal Software Engineer, you will play a pivotal role in shaping the technical direction of a large scale cloud-native platform, combining hands-on software development with architectural leadership and technical strategy.

Working across multiple engineering teams, you will define architectural standards, review solution designs, tackle complex technical challenges and ensure that performance, scalability, security and reliability are built into every solution from the outset.

This is a highly influential role for a technically exceptional engineer who enjoys mentoring senior developers, driving engineering excellence and working closely with both technical and business stakeholders.

You'll work with a modern tec...

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