Lead Software Engineer Python API - Fintech

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

Benefits offered by this job

Pension

Hybrid work model

Job summary

Client Server in London is seeking a Lead Software Engineer with strong Python backend expertise and hands-on leadership skills to guide a small tech team.

You will work on the core banking platform, drive architecture decisions, mentor juniors, and collaborate across the SDLC in a hybrid London office with remote days.

Qualifications

• You are an experienced software engineer with Python expertise and full SDLC experience.
• You have team leadership experience, mentoring others and conducting 1-2-1s and performance reviews.
• You have knowledge of cloud services (GCP preferred, AWS/Azure acceptable).
• You have experience building APIs, ideally FastAPI.
• You have strong CI/CD, testing and deployment knowledge.
• You have CS fundamentals including OOP, data structures, design patterns and algorithms.
• You are collaborative, pragmatic and have strong communication skills.
• You hold a STEM degree with a 2.1 or above.

Responsibilities

• Lead a small tech team and set engineering standards.
• Mentor junior developers and conduct performance reviews.
• Contribute to architecture/design decisions and refactor code as needed.
• Deliver features for the core banking platform and integrate with partners.

Skills

Python

Team leadership

APIs / FastAPI

Cloud platforms

CI/CD

OOP / Design Patterns

Communication skills

CS fundamentals

Education

STEM degree

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.