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.
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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.
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Location
London, United Kingdom
Compensation
£90k + Equity
Company
Second Brain AI
Role overview
Software
Second Brain AI is using data engineering and data science to build the first proactive, cross-functional business intelligence layer, starting with Seed and Series A B2B SaaS startups.
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.
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.
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.
How Jack & Jill work together
I get to know what you’re great at, then find roles you’d never find yourself.Ok, I'll go first. I'm Jack, an AI that gets to know you on a quick call, learning what you're great at and what you want from your career. Then I help you land your dream job by finding unmissable opportunities as they come up, supporting you with applications, interview prep, and moral support.
I recruit from Jack’s network and make the intro when I spot a great match.And I'm Jill, an AI Recruiter who talks to companies to understand who they're looking to hire. Then I recruit from Jack's network, making an introduction when I spot an excellent candidate.
Jack gets to know what you're great at and what you want next, then searches 15 million jobs daily and helps you discover roles at companies like this.
Meet Jack
What happens next?
Jack’s an AI agent for job searching and career coaching. He works for you.
Jill is the AI recruiter working for the company. She recruits from Jack’s network.
If your profile’s a match and Second Brain AI wants to meet, Jill will make the intro. In the meantime, Jack will send you excellent alternatives.