Full Stack Engineer (AI Native)

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

Benefits offered by this job

Benefits package

Hybrid London work model

Job summary

Harnham - Data & Analytics Recruitment in London is hiring a Full Stack Engineer (AI-Native) to join an AI-driven WealthTech platform. You will own software across front-end and back-end within an Agile squad, building customer-facing web apps with React and backend services in Kotlin/Spring.

You will work in a hybrid environment (London) with 2 days per week on-site, contribute to AI-assisted development workflows, and ensure high quality, scalable and secure software.

Qualifications

• Experience with Java and Kotlin backend development on the Spring stack.
• Proficient in React, JavaScript and TypeScript.
• Experience with AI-assisted development workflows and Claude.
• Strong knowledge of CI/CD pipelines and API integrations.
• Hands-on with AWS, Docker and Kubernetes.
• Familiar with Jira, Agile methodologies, and collaborative delivery.

Responsibilities

• Own software within an engineering squad across front-end and back-end development.
• Build and enhance customer-facing web applications.
• Develop scalable features using React, JavaScript and TypeScript.
• Contribute to backend services with Kotlin and Spring.
• Work in Agile Scrum teams to plan, develop, test and release software.
• Collaborate on APIs, microservices and event-driven architectures.
• Focus on software quality, performance, security and scalability.

Skills

Java Spring

React

JavaScript

TypeScript

AI-assisted dev

CI/CD

API integrations

AWS

Docker

Kubernetes

Jira

Agile

Tools

AWS

Docker

Kubernetes

Jira

Job description

FULL STACK ENGINEER (AI-NATIVE)

Up to £85,000 + Benefits
London (Hybrid, 2 Days per Week)

THE COMPANY:

This rapidly growing WealthTech business is transforming how individuals engage with their financial lives through innovative technology, sophisticated analytics, and exceptional user experience. Backed by leading investors and operating in a scale-up environment, the business is building a platform that provides users with a complete view of their financial world alongside personalised insights and recommendations. The engineering function operates through cross-functional Agile squads and is heavily focused on leveraging AI to increase engineering productivity and innovation.

THE ROLE:

You will take ownership of software within one of the engineering squads, contributing across both front-end and back-end development while working alongside product, engineering, and technical operations teams. Key responsibilities include:

• Building and enhancing customer-facing web applications.
• Developing scalable features using React, JavaScript and TypeScript.
• Contributing to backend services built with Kotlin and Spring.
• Leveraging AI tools and agentic development workflows as part of your day-to-day engineering process.
• Working within Agile Scrum teams to plan, develop, test and release software.
• Collaborating on APIs, microservices and event-driven architectures.
• Driving software quality, performance, security and scalability.

YOUR SKILLS AND EXPERIENCE:

You will bring strong capability in:

• Java and Kotlin backend development on the Spring stack.
• React, JavaScript and TypeScript.
• AI-assisted development, particularly using Claude and agentic engineering workflows.
• CI/CD pipelines, automated testing and API integrations.
• AWS, Docker and/or Kubernetes.
• Jira, Agile methodologies and collaborative software delivery.

THE BENEFITS:

You will receive a salary of up to £85,000 depending on experience, along with a comprehensive benefits package.
Please note: Sponsorship is not available for this position.