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Second Brain AI

Second Brain AI

Job listing

London, United Kingdom£90K + Equity

Full-stack Engineer at Second Brain AI

Second Brain AI is looking for a Full-stack Engineer to own the entire dashboard and Q&A interface for their Synthesis platform. If you have 6+ years of experience with React/Next.js and love shipping high-polish features in a fast-paced environment, this is your chance to build a category-defining product from the ground up in London.

Overview

Role overview

Join Second Brain AI as a Full-stack Engineer to build the core interface for our Synthesis platform. You will own the entire dashboard experience, from complex metric visualizations to seamless auth flows. Working at the intersection of UX and high-velocity engineering, you will ship features that define how users interact with our unique AI insights.

Company

Second Brain AI

Second Brain AI

Software

Second Brain AI - VC-backed AI startup

Responsibilities

What you will do

  • Build and own the entire dashboard interface including metric views, advanced drill-downs, and complex filtering systems.
  • Design and implement critical user infrastructure such as OAuth flows, workspace setup, and granular access controls.
  • Develop the core Q&A interface, managing everything from input handling to rendering traceable, AI-generated explanations.

Candidate profile

Who this is a fit for

  • Has approximately 6 years of experience in full-stack roles, specifically building high-velocity SaaS products with React and Next.js.
  • Demonstrates a strong product sense and the ability to ship polished, production-ready interfaces even with limited initial design support.
  • Possesses a pragmatic, ownership-oriented mindset, comfortable balancing rapid feature delivery with long-term code quality.

What makes it remarkable

Why this role is remarkable

  • Take total ownership of the frontend architecture and user experience for a category-defining AI product from day one.
  • Join a high-velocity, early-stage environment where you will build unique features like the Project Pulse and advanced explanation traceability.
  • Work directly with design and product leadership to translate complex data into polished, intuitive interfaces for sophisticated users.

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