Python Tech Lead (Hybrid) – FinTech with FastAPI & Share Options

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

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.