Job Description
FULL STACK ENGINEER (AI-NATIVE)
Up to £85,000 + Benefits
London (Hybrid, 2 Days per Week)This is a great opportunity to join a high-growth fintech scale-up where you can take ownership of customer-facing products whilst working in an AI-first engineering environment. You'll help build technology that combines financial data, analytics, and behavioural insights to deliver meaningful outcomes for end users. 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. HOW TO APPLY:Please register your interest by sending your CV to Molly Bird via the apply link on this page.
Full Stack Engineer (AI Native) in London employer: Harnham - Data & Analytics Recruitment
Join a forward-thinking SaaS organisation in London, where you'll not only lead the Data Engineering function but also play a pivotal role in shaping the future of AI and data solutions. With a strong emphasis on innovation, employee development, and a collaborative work culture, this company offers clear progression opportunities and the chance to work on impactful projects that drive commercial success. Enjoy a supportive environment that values your expertise while you tackle exciting technical challenges and contribute to the growth of a rapidly expanding business.
Contact Details:
Harnham - Data & Analytics Recruitment Recruitment Team
