Caspian One
Front End Developer - Agentic AI
Skills
1 month ago
Share this opportunity
Share this opportunity to other talents of your network:
✓ Offer them a visibility boost with clients.
✓ Help your contacts find their next job.
Important information
Contract type:
Freelance / Contract
Location:
London, UK
Work mode:
Onsite
Published on:
25 September 2026
What they need
About the Role
We are looking for a hands-on UI Developer to design, build, and support modern, AI-powered user experiences within a fast-paced, enterprise-scale data environment for a growing Investment Bank.
You will play a key role in shaping the frontend architecture of a new platform and data control plane, creating intuitive, responsive, and accessible interfaces that enable users to interact seamlessly with complex data and AI-driven workflows. This is a builder's role for someone who enjoys taking concepts from a blank page to polished, production-grade applications.
What You'll Do
- Design and build responsive, accessible, and high-performing user interfaces using React.js, Angular, TypeScript, and modern frontend frameworks.
- Develop reusable UI components, design patterns, and frontend architecture that can scale across multiple applications.
- Integrate frontend applications with backend APIs, AI services, and agent-based workflows.
- Build engaging user experiences for AI-powered applications, including conversational interfaces, data visualisations, dashboards, and workflow tools.
- Ensure applications meet accessibility, usability, and performance standards.
- Implement authentication, authorization, and role-based access controls within frontend applications.
- Write unit, integration, and regression tests to ensure reliability and maintainability.
- Support and maintain production applications, troubleshooting issues and continuously improving the user experience.
Required Qualifications
- Proven hands-on experience building modern web applications and enterprise user interfaces.
- Experience ideally within financial services, capital markets or enterprise scale data environments in a related industry.
- Experience working with AI, building agentic AI workflows or integrating AI agents.
- Exposure to AI-driven products, LLM applications, or agentic AI platforms such as LangGraph, LangSmith, Strands SDK, or Agent Core.
- Strong experience with React.js, Angular and TypeScript.
- Cloud experience with AWS
- Solid understanding of modern frontend architecture, component design, state management, and application structure.
- Experience integrating frontend applications with REST APIs and external services.
- Experience working with modern testing frameworks and writing automated frontend tests.
- Experience building reusable component libraries and design systems.
- Strong focus on usability, user experience, and visual quality.
Nice to Have
- Experience building conversational user interfaces or AI-assisted workflows.
- Experience with data visualisation frameworks and dashboard development.
- Experience supporting production applications and CI/CD pipelines.
What We're Looking For
A self-driven UI Engineer who is passionate about building elegant, intuitive user experiences and enjoys working closely with product, design, and engineering teams. Someone who can translate complex business and AI-driven workflows into simple, scalable, and highly usable interfaces, while maintaining high engineering standards and frontend best practices.
Other offers great for you!
These companies are also looking for great profiles
Go&DEV
Front End Developer
Freelance
Luxembourg
Onsite
Skills
4 months ago
Quick apply
Espace Freelance
Audit Applicatif support & Intelligence artificielle
Freelance
Lille, France
Onsite, Hybrid
Skills
6 days ago
Quick apply
Qolibris
Chef de Projet IA Agentic
Freelance
94220 Charenton-le-Pont, France
Hybrid
Skills
1 day ago
Quick apply
No company information available.