Senior Python Engineer – Django/AI in FinTech (Hybrid/Remote)

Client Server Limited; Greater London; Hybrid; GBP 90,000 - 120,000; Full time

Benefits offered by this job

Pension

Job summary

Client Server Limited in London, a FinTech business, is seeking a Senior Python Software Engineer to take a leading role in designing and delivering software products, combining hands-on Python development with technical ownership across backend engineering, data processing and complex financial systems.

The role focuses on leveraging AI/LLMs and a modern architecture, with the London office three days a week and two days remote, offering development opportunities in a product-driven environment.

Qualifications

• Strong academic background in STEM from Oxbridge or Russell Group; 2.1 or above; Computer Science preferred.
• Senior or Principal level commercial software engineering experience.
• Expert Python development with Django or FastAPI.
• Ability to lead design and delivery of software products from concept to production.
• Experience shaping technical architecture and influencing engineering decisions.
• Product-focused mindset balancing new development with improving existing systems.
• Interest in applying AI/LLMs to products and workflows.
• FinTech, financial services or investment technology experience advantageous.

Responsibilities

• Lead the design and delivery of software products from concept to production.
• Balance new development with improving existing systems.
• Collaborate across backend engineering, data processing and financial systems.
• Champion AI and LLM technologies and drive adoption across the team.

Skills

Python

Django

FastAPI

AI/LLMs

Technical leadership

Software architecture

FinTech

Tools

Django

FastAPI

Job description

Client Server Limited in London, a FinTech business, is seeking a Senior Python Software Engineer to take a leading role in designing and delivering software products, combining hands-on Python development with technical ownership across backend engineering, data processing and complex financial systems.

The role focuses on leveraging AI/LLMs and a modern architecture, with the London office three days a week and two days remote, offering development opportunities in a product-driven environment.