Full Stack Engineer (Java + React)

Harnham - Data & Analytics Recruitment; Greater London; Hybrid; GBP 51,000 - 85,000; Full time

Benefits offered by this job

Private healthcare

Pension contribution

25 days holiday

Regular team socials

Clear progression opportunities

Job summary

Harnham - Data & Analytics Recruitment is partnering with a fast-growing WealthTech business to hire a Full Stack Engineer focused on React/TypeScript and Java. The role is roughly 65% frontend and 35% backend, with hybrid working in London two days per week.

You will join a cross-functional squad building a modern web platform, delivering features, improving performance, and shaping technical decisions in a cloud-native environment, with AI-assisted development tools integrated into daily

Qualifications

• Strong experience with React and TypeScript.
• Backend development in Java with Spring/Spring Boot.
• Experience building and consuming APIs and API design.
• Familiarity with AI-assisted development tools in the SDLC.
• Experience in Agile environments.

Responsibilities

• Develop features for a modern web platform in a cross-functional squad.
• Focus on frontend while contributing to backend services.
• Enhance platform performance and shape technical decisions.
• Work in a cloud-native environment.
• Incorporate AI tools into daily coding workflow.

Skills

React

TypeScript

Java

Spring / Spring Boot

AI-assisted development tools

APIs

Agile

Testing / Clean code

Tools

AWS

Docker

Kubernetes

GraphQL

Kafka

Job description

Full Stack Engineer (React / TypeScript / Java)

Up to £85,000 + Benefits

Hybrid Working London 2 Days per Week in Office

We're working with a fast-growing WealthTech business that is transforming the way individuals and families engage with their finances through innovative technology and exceptional user experiences.

They're looking for a Full Stack Engineer to join a highly collaborative engineering team building and enhancing a modern web platform. This role is approximately 65% Frontend and 35% Backend, making it ideal for engineers who enjoy creating outstanding user experiences while remaining hands-on across the full stack.

The Role

You'll join a cross-functional squad responsible for delivering new features, improving platform performance, and helping shape technical decisions across the product.

The role has a strong frontend focus, but you'll also contribute to backend services and APIs, working within a modern cloud-native environment.

A key aspect of the engineering culture is the use of AI-assisted development tools, so candidates must already be comfortable incorporating AI into their daily workflow for coding, testing, and productivity.

Essential Requirements

• Strong commercial experience with React
• Strong commercial experience with TypeScript
• Commercial backend development experience with Java
• Experience working with Spring / Spring Boot
• Hands-on experience using AI-assisted development tools as part of the software development lifecycle
• Experience developing and consuming APIs
• Understanding of software engineering best practices, testing, and clean code principles
• Experience working within Agile environments

Nice to Have

• Kotlin experience
• AWS experience
• Docker and Kubernetes
• Microservices architecture
• Event-driven systems (Kafka or similar)
• GraphQL

What You'll Get

• Salary up to £85,000
• Hybrid working (2 days per week in London)
• Private healthcare
• Pension contribution
• 25 days holiday
• Regular team socials
• Clear progression opportunities within a growing engineering organisation