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Backend Software Engineer Python FastAPI SQL

Client Server· London, England, United Kingdom· Up to £95,000/yr
Posted 16 Jun 2026Python Developer
Client ServerRecruitment agencyfounded 1999
Levels.fyi · global comp
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Backend Software Engineer / Developer (Python FastAPI SQL Databricks) London to £95k

Are you a data centric Backend Software Engineer with strong Python, SQL and FastAPI skills?

You could be progressing your career in a senior, hands-on role at a fast growing, global Insurance Underwriting technology provider that focusses on developing a complex SaaS calculation platform for rapidly growing Cyber Security insurance markets.

As a Backend Software Engineer you will design and develop data centric backend services for the core platform with a focus on Python coding and building FastAPIs within an Azure environment with Databricks. You'll participate in the design and implementation of advanced mechanisms for data ingestion, transformation, mass parallel orchestration of network IO and will model data for a variety of purposes.

You'll also collaborate with the Infrastructure Team to maintain Infrastructure as Code and develop new features on the engineering platform.

Location / WFH:

There's a hybrid work from home model with three days a week in the high spec London, City office with rooftop bar.

About you:

You have strong Python backend software engineering skills

You have experience of building FastAPIs

You have a good knowledge of public cloud services, they're using Azure but experience with AWS or GCP is fine

You have experience of working with data at scale

You have strong SQL skills (PostgreSQL, SQL Server - Azure Databricks experience highly preferred)

You have a thorough knowledge of Computer Science fundamentals including Data Structures, Design Patterns, OOP

You're collaborative and pragmatic with great communication skills

What's in it for you:

Salary to £95k + bonus

25 days holiday

Private Medical Insurance (including dental and optical cashback)

Life Insurance, Income Protection

Pension

Subsidised gym membership

X4 paid volunteering days per year

Season ticket loan

Employee Assistance Programme

Impactful role with great career progression

Apply now to find out more about this Backend Software Engineer / Developer (Python FastAPI Databricks Azure) opportunity.

At Client Server we believe in a diverse workplace that allows people to play to their strengths and continually learn. We're an equal opportunities employer whose people come from all walks of life and will never discriminate based on race, colour, religion, sex, gender identity or expression, sexual orientation, national origin, genetics, disability, age, or veteran status. The clients we work with share our values.