Python Engineer / Tech Lead - FinTech

Client Server; Greater London; Hybrid; GBP 126,000 - 154,000; Full time

Benefits offered by this job

Share options

Healthcare

Life Assurance

Employee Assistance Programme

Holiday allowance

Travel Insurance

Parental leave

Training and development

Diverse team

Job summary

Client Server is seeking a Python Engineer / Tech Lead to shape the backend of a fintech platform in London, with hybrid WFH. You’ll lead a small tech team, set standards, mentor engineers and deliver features and refactoring across the core banking system.

You require Python, FastAPI, and cloud experience (GCP preferred). The role offers up to £140k base plus bonus in a collaborative, high-growth environment.

Qualifications

• Experienced Software Engineer with Python and full SDLC experience.
• Technical leadership experience with mentoring and performance reviews.
• Strong knowledge of cloud services (GCP preferred; AWS/Azure acceptable).
• Experience building APIs, preferably FastAPI, with CI/CD and testing.
• Strong CS fundamentals: OOP, data structures, design patterns, algorithms.
• Collaborative, pragmatic, with strong communication; STEM degree with 2.1+.

Responsibilities

• Lead a small tech team delivering new features and refactoring across the core platform.
• Set standards, mentor juniors, and conduct 1-2-1s and performance reviews.
• Collaborate on architectural decisions and drive continuous improvement.

Skills

Technical leadership

Mentoring

Communication

Object-oriented programming

CS fundamentals

Education

STEM degree (2.1+)

Tools

Python

FastAPI

GCP

CI/CD

APIs

Job description

Python Engineer / Tech Lead (FastAPI GCP) London / WFH to £140k+

Are you a skilled a backend focussed Python technologist with technical leadership skills?

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

As a Python Engineer / Tech Lead 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 high street names. 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 technical leadership. 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 technical / 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 experienceYou 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 Python Engineer / Tech Lead you will earn a competitive package (total comp approx. £200k):

• Salary to £140k + bonus
• Share options
• BUPA Healthcare + Medicare CashPlan for you and immediate family
• Life Assurance
• Employee Assistance Programme
• 28 days holiday (+ bank holidays) + Travel Insurance
• Enhanced parental leave
• Continuous training and career development support
• Diverse, friendly team environment