Lead Software Engineer Python API

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

Benefits offered by this job

Private Medical Insurance (including_d

Life Insurance

Pension

Gym membership

Volunteering days

Season ticket loan

Employee Assistance Programme

Holiday 25 days

Job summary

Client Server is seeking a Lead Software Engineer / Developer with strong Python and FastAPI experience, plus Azure Databricks expertise. This hybrid London role combines hands-on coding with technical leadership to drive a complex SaaS platform in the cyber security insurance space.

You will mentor small to medium technical teams, shape architecture, and ensure best practices across CI/CD, testing, and quality assurance while collaborating with Product Owners and stakeholders to prioritise work.

Qualifications

• Experience leading and mentoring technical teams.
• Strong Python backend development skills with FastAPI experience.
• Knowledge of Azure and data-at-scale workloads; solid SQL skills (PostgreSQL/SQL Server).

Responsibilities

• Provide technical leadership and guidance to the team.
• Define technical requirements and align with business objectives.
• Design and implement complex solutions; contribute to architectural decisions.
• Guide code quality, reviews, and best practices; enforce CI/CD and testing standards.
• Collaborate with Product Owners and stakeholders to prioritise tasks.

Skills

Team leadership

Python

FastAPI

Azure

SQL

Azure Databricks

Data at scale

CS fundamentals

Tools

Azure Databricks

FastAPI

PostgreSQL

SQL Server

Job description

Lead Software Engineer / Developer (Python FastAPI Azure Databricks) London / WFH to £110k

Are you a backend focused Software Engineer with strong Python skills combined with technical / team leadership experience?

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 Lead Software Engineer you'll remain hands-on whilst providing technical leadership, designing and implementing complex solutions and ensuring the team adheres to best practices. You'll define technical requirements and ensure alignment with business objectives, contribute to architectural decisions and technical designs and collaborate with Product Owners and stakeholders to prioritise tasks and allocate resources.

You’ll provide technical leadership and guidance, facilitate communication and ensure coding standards and best practices, including performing code reviews and providing constructive feedback, championing quality focused software development, enforcing quality assurance standards, processes, testing methodologies, and driving initiatives to improve the development team efficiency e.g. CI/CD.

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 experience of leading and mentoring small to medium sized technical teams
• You have strong Python backend software engineering skills
• You have experience of building FastAPIs
• You have a good knowledge of Azure
• 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 £110k + 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