Lead Software Engineer Python Api - Fintech

Client Server Limited; Greater London; Hybrid; GBP 108,000 - 132,000; Full time

Job summary

Client Server Limited in London is seeking a Lead Software Engineer to head a backend team focusing on Python and API development for a core banking platform.

You will split time between architecture and people management, setting standards and mentoring juniors to foster continuous improvement in a hybrid London office with WFH flexibility.

Qualifications

• Strong Python experience with full SDLC ownership.
• Experience mentoring and performing 1-2-1s and reviews.
• Knowledge of cloud services (GCP preferred; AWS/Azure ok).
• Experience building APIs, ideally with FastAPI.
• Understanding of CI/CD, testing and deployment processes.
• Solid CS fundamentals: OOP, data structures, design patterns, algorithms.

Responsibilities

• Lead a small backend team focused on Python development.
• Define architecture and design while guiding quality and standards.
• Mentor juniors and conduct performance reviews.
• Collaborate across teams to deliver features and refactors.

Skills

Python

Leadership

Cloud platforms

API development

CI/CD

CS fundamentals

Communication

2:1 STEM degree

Education

2:1 STEM degree

Tools

FastAPI

Job description

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

Are you a skilled a backend focussed Python technologist with team leadership experience?

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

As a Lead Software Engineer you'll head up a small, talented tech team to deliver new features and enhancements as well as some refactoring work, contributing to the core banking platform which integrates with major players such as HSBC. There's a relatively young codebase and lots of new projects to get stuck into.

You'll be collaboratively problem solving in a hands-on role with approximately 50/50 split between architecture / design and people management. You'll set the standards and mentor more junior developers, fostering a culture of continuous improvement and self development.

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 Software Engineer with Python expertise and 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 Software Engineer you will earn a competitive salary (to £120k) plus pension and other benefits.