Senior Python Developer AWS - Front Office

Client Server; Greater London; Hybrid; GBP 78,000 - 130,000; Full time

Benefits offered by this job

Pension

Career advancement

Job summary

Client Server in London is seeking a Senior Python Developer to design, build and optimise high performance trading systems and cloud infrastructure, with a focus on front, middle and back office operations.

Based in London Bank, you will be in the office three days a week with the option to work from home twice a week. You will lead projects from design to deployment, champion DevOps, automation and cloud architecture, and drive secure, scalable solutions across the team.

Qualifications

• Advanced backend Python development experience.
• Strong knowledge of AWS, DevOps practices, CI/CD and containerisation.
• Comfortable with occasional front-end work.
• Experience owning end‑to‑end software delivery lifecycle.
• Experience in Front Office trading environments.
• Excellent communication skills.

Responsibilities

• Design, develop and enhance high‑performance trading systems and cloud infrastructure.
• Lead projects from design through deployment.
• Champion engineering best practices, automation, DevOps and cloud architecture.

Skills

Backend Python

AWS

DevOps

CI/CD

Containerisation

Front‑end basics

End‑to‑end delivery

Communication

Trading environments (Front Office)

Tools

AWS

Docker

CI/CD pipelines

Job description

Senior Python Developer / Engineer (Python AWS) London / WFH to £130k

Are you a Python technologist with experience of Front Office trading environments?

You could be progressing your career on the Asset Management side of a global Japanese bank as they expand this product offering within the UK.

As a Senior Python Developer, you'll design, develop and enhance high performance trading systems and cloud infrastructure that support critical front, middle and back office operations. Collaborating with stakeholders across the business, you'll translate complex requirements into scalable, resilient technology that drives efficiency and business growth.

You'll lead projects from design through to deployment, building secure, highly available systems capable of handling large volumes of market and trading data. Alongside hands‑on development, you'll champion engineering best practices, automation, DevOps and cloud architecture, helping to continuously improve the team's technical capabilities.

Location / WFH

You will be based in the London, Bank office three days a week with flexibility to work from home twice a week.

About you

• You have advanced backend Python development skills


• You have a strong knowledge of AWS, DevOps practices, CI/CD, Containerisation


• You're comfortable with occasional front end work


• You have experience of owning the end-to-end software delivery lifecycle, are proactive in bringing solutions problems identified


• You have experience of working in Front Office trading environments


• You're pragmatic with great communication skills

What's in it for you

As a Senior Python Developer / Engineer you will earn a competitive package including:

• Salary to £130k + bonus


• Pension


• Career advancement