Lead Python Developer - Fintech

Client Server; Greater London; Hybrid; GBP 100,000 - 120,000; Full time

Benefits offered by this job

Pension

Other benefits

Job summary

Client Server in London is seeking a Lead Python Developer to blend technical leadership with hands-on software engineering on a modern Python-based platform. You will mentor developers, drive engineering standards and guide architectural decisions.

You’ll influence technical direction with product and stakeholders, delivering new capabilities in a fast-moving FinTech environment. Hybrid work in London with WFH up to two days.

Qualifications

• Expert Python developer with full SDLC experience.
• Experience leading a team and conducting 1-2-1s and reviews.
• Cloud knowledge with GCP/AWS/Azure acceptable.
• Experience building APIs, preferably FastAPI.
• Strong knowledge of OOP, data structures, and design patterns.

Responsibilities

• Lead a Python development team and mentor engineers.
• Guide architecture, design and delivery of new platform capabilities.
• Collaborate with product, engineering and business stakeholders to steer technical direction.

Skills

Python

Team leadership

API design

Cloud platforms

Software architecture

SDLC

CI/CD

OOP

Education

STEM degree

Tools

Git

Docker

FastAPI

Job description

Lead Python Developer - Fintech Client Server London, England

Lead Python Developer / Software Engineer London / WFH to £120k

Are you a skilled Python Developer with team leadership experience?

You could be progressing your career at a well-funded and profitable FinTech start-up.

As a Lead Python Developer your role will blend of technical leadership and software engineering, giving you the opportunity to guide a talented team while remaining closely involved in architecture, design and delivery. You'll play a key role in driving engineering standards, mentoring developers and helping the team tackle complex technical challenges across a modern Python based platform.

Collaborating with Product, Engineering and business stakeholders, you'll influence technical direction, lead the delivery of new capabilities and contribute to the evolution of a platform that supports critical financial services. The environment is collaborative, fast-moving and well suited to engineers who enjoy balancing strategic thinking with hands‑on problem solving.

You'll join a profitable, well funded business with ambitious growth plans, meaningful technical challenges and the opportunity to make a lasting impact on both the technology platform and the engineering culture.

Location / WFH:

You'll join colleagues in the Central London office with flexibility to work from home twice a week in a hybrid model.

About you:

• You're an experienced Python Developer with a strong knowledge of software engineering best practices and full SDLC experience


• You have team leadership experience, happy to mentor and develop others as well as provide 1-2-1s and performance reviews


• You have a good knowledge of cloud based services (they use GCP but AWS or Azure experience is fine)


• You have experience of building APIs, ideally FastAPI experience


• You have a good knowledge of CI/CD, testing and deployment


• You have a thorough understanding of Computer Science fundamentals such as OOP, Data Structures, Design Patterns, Algorithms


• You're collaborative and pragmatic with great communication skills


• You're degree educated in a STEM discipline, having achieved a 2.1 or above

What's in it for you:

As a Lead Python Developer / Software Engineer you will earn a competitive salary (to £120k) plus pension and other benefits.

Full-time