Senior Full-Stack Engineer — Hybrid (Python/React)

eFinancialCareers; Greater London; Hybrid; GBP 88,000 - 115,000; Part time

Benefits offered by this job

Hybrid working arrangement

Job summary

eFinancialCareers in London (Holborn) is seeking a Senior Full Stack Engineer for a hybrid contract role. You will build and enhance modern applications in a regulated environment, adhering to established engineering standards and delivery processes.

You will work hands-on across Python (FastAPI, Pydantic, PostgreSQL) and front-end (React/TypeScript), with a focus on secure coding, testing, and CI/CD. Remote: Holborn; hybrid working in Central London.

Qualifications

• Extensive Python development experience in modern web apps.
• Strong API design with FastAPI and async patterns.
• Proficient data modelling with Pydantic and PostgreSQL.
• Front-end skills in React + TypeScript; SPA delivery.
• Experience with authentication (JWT/SAML) and RBAC.
• Test automation with pytest and JS testing tools.

Responsibilities

• Hands-on development of modern applications in a regulated environment.
• Design, implement and optimize APIs and data models with security in mind.
• Review AI-generated code and manage CI/CD pipelines.
• Collaborate asynchronously within established engineering standards.

Skills

Python development

FastAPI

Async programming

Pydantic data modelling

PostgreSQL data modelling

React & TypeScript

Authentication & RBAC

Testing with pytest

Git & GitHub

CI pipelines

Claude Code usage

Code reviews

Security best practices

WCAG 2.1 AA accessibility

Vite & npm ecosystem

Tools

GitHub Copilot

Claude Code

Azure (App Service, Key Vault, Managed Identity, Application Insights)

Vite

npm ecosystem

Job description

eFinancialCareers in London (Holborn) is seeking a Senior Full Stack Engineer for a hybrid contract role. You will build and enhance modern applications in a regulated environment, adhering to established engineering standards and delivery processes.

You will work hands-on across Python (FastAPI, Pydantic, PostgreSQL) and front-end (React/TypeScript), with a focus on secure coding, testing, and CI/CD. Remote: Holborn; hybrid working in Central London.