Senior Full Stack Engineer Python AND React

Harnham - Data & Analytics Recruitment; City Of London; Hybrid; GBP 80,000 - 100,000; Full time

Job summary

A leading recruitment firm is seeking a Senior Full Stack Developer to innovate AI-driven legal solutions. Candidates should have strong skills in Python, React, and cloud technologies, with 4+ years of experience. This hybrid position offers competitive pay and benefits including private medical insurance and pension contributions. Join a forward-thinking team to shape the future of legal technology.

Benefits

Private medical insurance

Pension contribution

Enhanced family leave

Qualifications

• 4+ years' experience building enterprise-grade applications.
• Strong backend skills in Python with experience designing APIs.
• Solid frontend development skills in React and TypeScript.

Responsibilities

• Design and develop complex web applications.
• Collaborate with product owners and data teams.
• Implement cloud-based solutions and manage DevOps processes.

Skills

Backend development in Python

Frontend development in React

DevOps processes

Agile methodologies

Cloud-based solutions (Azure)

Generative AI technologies

Tools

FastAPI

Flask

GraphDB

CosmosDB

SQL

TypeScript

HTML

CSS

Job description

Senior Full Stack Developer

Hybrid (London, Cambridge, or Bristol - 3 days per week)

Up to £100,000 + 5% Bonus + Benefits

Are you a talented Full Stack Developer looking to work at the forefront of AI and software innovation? We're partnering with a leading international law firm that's building cutting-edge GenAI and LLM-powered solutions - and they're looking for a Full Stack Developer to help shape the next generation of legal technology. This is a unique opportunity to work within a forward-thinking tech team that's reimagining how AI can transform client delivery, knowledge management, and operational excellence across a global firm.

Why this role?

• Work directly with data scientists and AI engineers on enterprise-scale AI and machine learning products.
• Build production-ready applications that leverage Generative AI and Large Language Models (LLMs).
• Hybrid flexibility: 3 days per week in either London, Cambridge, or Bristol, 2 from home.
• Join an award-winning firm recognised for innovation, inclusion, and career development.

What you'll be doing:

• Designing, developing, and maintaining front-end and back-end components of complex web applications.
• Collaborating with product owners, designers, and data teams to deliver user-friendly, high-performance tools.
• Implementing cloud-based solutions and managing DevOps processes for seamless deployment.
• Working in an agile team, contributing to sprints, backlog refinement, and continuous improvement.
• Staying up to date with AI/ML and LLM trends to bring innovative ideas into production.
• Ensuring code quality through testing, documentation, and peer review.

What we're looking for:

• 4+ years' experience building enterprise-grade applications.
• Strong backend skills in Python (FastAPI, Flask) with experience designing APIs and integrating databases (e.g. GraphDB, CosmosDB, SQL).
• Solid frontend development skills in React, TypeScript/JavaScript, HTML, and CSS.
• Experience developing scalable, cloud-based solutions - Azure preferred.
• Understanding of modern development best practices, including agile delivery, CI/CD, and automated testing.
• Passion for emerging tech and willingness to learn Generative AI and LLM technologies (e.g. OpenAI)

Nice-to-haves:

• Experience working in or with legal tech, consulting, or data-driven environments.
• Familiarity with UX design principles and the ability to prototype interfaces.
• Experience managing deployments or infrastructure automation.

Package & Benefits:

• Salary up to £100,000 + 5% annual bonus.
• Hybrid working - 3 days per week in London, Cambridge, or Bristol office.
• Private medical insurance, pension contribution, and enhanced family leave.