Full Stack Engineer: React/TypeScript + Java – Hybrid

Harnham; Greater London; Hybrid; GBP 51,000 - 85,000; Full time

Benefits offered by this job

Pension contribution

25 days holiday

Regular team socials

Clear progression opportunities

Job summary

Harnham is hiring a Full Stack Engineer (React/TypeScript/Java) in London with hybrid working. The role involves 65% frontend and 35% backend, delivering features for a WealthTech platform and shaping technical decisions in a modern cloud-native environment.

You will work in a cross-functional squad, focusing on frontend while contributing to backend services and APIs, with AI-assisted development tools integrated into daily workflows.

Qualifications

• Strong commercial experience with React and TypeScript.
• Backend development experience with Java and Spring/Spring Boot.
• Experience in developing and consuming APIs and understanding clean code practices.
• Familiarity with Agile methodologies and AI-assisted development tools.

Responsibilities

• Deliver new features and improve platform performance in a cross-functional squad.
• Contribute to frontend and backend services and APIs in a cloud-native environment.
• Incorporate AI tools into the daily coding and testing workflow.
• Support best practices, testing, and continuous delivery within an Agile setup.

Skills

React

TypeScript

Java

Spring / Spring Boot

APIs

AI-assisted development

Agile

APIs development

Tools

AWS

Docker

Kubernetes

Kafka

GraphQL

Job description

Harnham is hiring a Full Stack Engineer (React/TypeScript/Java) in London with hybrid working. The role involves 65% frontend and 35% backend, delivering features for a WealthTech platform and shaping technical decisions in a modern cloud-native environment.

You will work in a cross-functional squad, focusing on frontend while contributing to backend services and APIs, with AI-assisted development tools integrated into daily workflows.