Lead Python Developer - Fintech

Client Server; City of Westminster; Hybrid; GBP 100,000 - 120,000; Full time

Job summary

Client Server is seeking a Lead Python Developer for a fintech platform in London. The role blends technical leadership with hands-on software engineering, guiding a talented team while shaping architecture, design and delivery.

You will collaborate with product and engineering stakeholders, build scalable APIs (FastAPI), and advance CI/CD, testing and cloud deployment across GCP/AWS/Azure. Hybrid work from central London with two days remote.

Qualifications

• Strong Python development with full SDLC experience.
• Experience leading teams; able to mentor and conduct reviews.
• Experience building APIs and cloud deployments.

Responsibilities

• Lead technical direction and architecture of platform.
• Mentor developers and conduct 1-2-1s and performance reviews.
• Collaborate with product and business stakeholders.
• Drive engineering standards and CI/CD practices.

Skills

Python

Leadership

APIs

Cloud platforms

CI/CD

Testing

CS fundamentals

Communication

SDLC

Education

STEM degree

Tools

FastAPI

GCP

AWS

Azure

Job description

Lead Python Developer – Fintech (PR/100745) London, England

Salary: GBP100000 - GBP120000 per annum + benefits

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.