Senior Software Engineer Python AWS Front Office

Client Server; Broadgate; Hybrid; GBP 90,000 - 110,000; Full time

Job summary

Client Server in London is seeking an experienced Senior Backend Engineer to design, develop and optimise high-performance trading systems and cloud infrastructure. The role combines sophisticated backend Python development with cloud and DevOps practices, and involves occasional front-end work.

You will own the end-to-end software delivery lifecycle, collaborating with front, middle and back office teams to translate complex requirements into scalable technologies in a hybrid London office

Qualifications

• Advanced Python backend development skills.
• Strong knowledge of AWS, DevOps practices, CI/CD and containerisation.
• Comfortable with occasional front-end work.
• Experience owning the end-to-end software delivery lifecycle.
• Experience working in front office trading environments.
• Pragmatic with strong communication skills.

Responsibilities

• Design, develop and enhance high-performance trading systems and cloud infrastructure.
• Support critical front, middle and back office operations.
• Collaborate with stakeholders across the business to translate complex requirements into scalable, resilient technology.
• Lead projects from design through to deployment.
• Build secure, highly available systems capable of handling large volumes of market and trading data.
• Champion engineering best practices, automation, DevOps and cloud architecture.
• Help continuously improve the teams technical capabilities.

Skills

Python backend

AWS

DevOps

CI/CD

Containerisation

Frontend collaboration

End-to-end delivery

Trading environments

Tools

Docker

Kubernetes

Job description

Salary: £100,000 - 100,000 per year

Requirements

• Advanced backend Python development skills
• Strong knowledge of AWS, DevOps practices, CI/CD and containerisation
• Comfortable with occasional front-end work
• Experience owning the end-to-end software delivery lifecycle
• Experience working in front office trading environments
• Pragmatic with strong communication skills

Responsibilities

• Design, develop and enhance high-performance trading systems and cloud infrastructure
• Support critical front, middle and back office operations
• Collaborate with stakeholders across the business to translate complex requirements into scalable, resilient technology
• Lead projects from design through to deployment
• Build secure, highly available systems capable of handling large volumes of market and trading data
• Champion engineering best practices, automation, DevOps and cloud architecture
• Help continuously improve the teams technical capabilities

Technologies

• AWS
• Backend
• CI/CD
• Cloud
• DevOps
• Support
• Python

More

We are a global Japanese bank expanding our product offering within the UK, with a role based in our London, Bank office. The position offers a hybrid working pattern with three days in the office and two days working from home. We offer a competitive package including a salary of up to £130k, bonus, pension and career advancement opportunities.

last updated 36 week of 2026