Senior Python Engineer: FastAPI on Azure | Hybrid London

Client Server Ltd.; Greater London; Hybrid; GBP 90,000 - 110,000; Full time

Benefits offered by this job

25 days annual leave

Private Medical Insurance (including,

Life Insurance

Pension

Subsidised gym membership

Season ticket loan

Employee Assistance Programme

Volunteering days

Job summary

Client Server Ltd. in London is seeking a Senior Python Developer to own backend systems, play a hands-on leadership role, and shape the architecture of a complex SaaS calculation platform for cyber security insurance markets.

You will design, implement, and review code for FastAPI services, work with Azure (AWS optional), mentor engineers, and drive best practices, CI/CD, and quality assurance. This hybrid role offers a London office presence three days a week, with remote work options, a

Qualifications

• Strong Python backend experience with hands-on development.
• Experience building FastAPI services at scale.
• Azure familiarity; AWS acceptable.
• Experience leading and mentoring tech teams.
• Solid CS fundamentals: data structures, design patterns, OOP.

Responsibilities

• Lead technical direction and architecture for backend systems.
• Implement complex features and ensure code quality.
• Mentor engineers and conduct code reviews.
• Collaborate with Product Owners to prioritise work.
• Ensure CI/CD and testing practices.

Skills

Python

FastAPI

Azure

Leadership

CI/CD

Tools

Azure DevOps

Git

Job description

Client Server Ltd. in London is seeking a Senior Python Developer to own backend systems, play a hands-on leadership role, and shape the architecture of a complex SaaS calculation platform for cyber security insurance markets.

You will design, implement, and review code for FastAPI services, work with Azure (AWS optional), mentor engineers, and drive best practices, CI/CD, and quality assurance. This hybrid role offers a London office presence three days a week, with remote work options, a