AI-Native Full Stack Engineer - Fintech, Hybrid London

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

Benefits offered by this job

Benefits package

Job summary

Harnham - Data and Analytics Recruitment in London is seeking a Full Stack Engineer (AI-Native) to own customer-facing software within an AI-first fintech environment, delivering scalable features and robust interfaces.

You will work across front-end and back-end with React, Kotlin, Spring and AI tooling, in Agile squads, shipping reliable code in collaboration with product, engineering and operations teams.

Qualifications

• Experience with frontend and backend development using modern JS/TS frameworks.
• Strong back-end skills in Java/Kotlin and Spring stack.
• Experience with AI-assisted development and responsible tooling.
• Familiarity with CI/CD, testing, and API integrations.
• Knowledge of AWS, Docker and/or Kubernetes; Agile delivery.

Responsibilities

• Build and enhance customer-facing web applications.
• Develop scalable features using React, TypeScript and Kotlin.
• Contribute to backend services and APIs in a Spring stack.
• Apply AI tools and agentic workflows in daily engineering work.
• Work in Scrum teams to plan, test and release software.

Skills

React

Java

Kotlin

TypeScript

AI-assisted development

CI/CD

Agile

Tools

Spring

Jira

AWS

Docker

Kubernetes

Job description

Harnham - Data and Analytics Recruitment in London is seeking a Full Stack Engineer (AI-Native) to own customer-facing software within an AI-first fintech environment, delivering scalable features and robust interfaces.

You will work across front-end and back-end with React, Kotlin, Spring and AI tooling, in Agile squads, shipping reliable code in collaboration with product, engineering and operations teams.