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Onsite or remote • London+3💼 Full-time🗓 2026-06-25

Core

Develop collaboration features and intuitive UIs for document review, commenting, versioning, and signing in a React + TypeScript application, while integrating AI features like automated clause suggestions and document summarization.

Role type

Senior Frontend & AI Engineer

Builds

React + TypeScript application for document review, commenting, versioning, and signing

Domain

Fintech & Legaltech

Deliverable

product features

Required skills

React, TypeScript, Ruby on Rails API integration, LLM integration, UI development

Preferred skills

AI feature prototyping, experience with OpenAI/Mistral/DeepSeek

Technologies

React, TypeScript, Ruby on Rails, OpenAI, Mistral, DeepSeek

Responsibilities

Develop collaboration features, build UIs for document review and versioning, integrate with backend APIs, prototype AI features, explore LLMs and AI backend services

Rewrite
## About the role As a Frontend & AI Engineer, you will primarily help us: - Develop collaboration features in our React + TypeScript application - Build intuitive UIs for document review, commenting, versioning (diffs/blacklining), and signing - Integrate with backend APIs built in Ruby on Rails Depending on your interests and skills, you may also contribute to: - Prototyping and integrating AI features (e.g., automated clause suggestions, document summarization, legal assistant tools) - Exploring large language models (LLMs) and AI backend services (OpenAI, Mistral, DeepSeek etc.) This role offers the chance to combine product-facing frontend work with cutting-edge AI exploration, making it a unique opportunity in the fintech & legaltech space. ## For application - No direct email - No contact on linkedin - Only use the Wellfound platform
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