Full Stack Engineer
Work with Next.js, Supabase, Vercel, TypeScript, React, and LLM-driven workflows, integrating AI-native interfaces and tool calls. Build agentic knowledge infrastructure for AI agents, powering deep research and reasoning for LLMs.
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Job Title
Full Stack Engineer
Salary
£55k–£95k + Equity
Company Description
Valyu is building the foundational search infrastructure for the next decade of AI agents, creating a specialized knowledge layer designed for deep research and reasoning. Based in London, Valyu combines first-principles research with high-scale engineering to transform how LLMs access and process complex information across thousands of sources.
Job Description
Valyu is seeking a Junior to Mid-level Full Stack Engineer to build the agentic knowledge layer for AI. You will own product surfaces end-to-end, from customer dashboards to internal tools, using a modern stack including Next.js and Supabase. You'll integrate LLM-driven workflows and create AI-native interfaces that define how agents interact with structured knowledge.
Location
London, UK
Why this role is remarkable
Build the core primitive for the agentic era, creating the specialized search infrastructure that high-performance AI systems require to function.
Join a high-velocity team where "cracked" engineers are the standard, working at the intersection of first-principles ML research and hard software engineering.
Gain significant ownership and equity in a London-based startup tackling one of the most foundational questions in the future of software development.
What You Will Do
Ship end-to-end product surfaces using Next.js, Supabase, and Vercel, maintaining a high bar for design quality and user experience.
Build and iterate on AI-native interfaces and infrastructure for tool calls, agent runtimes, and deep research workflows.
Work directly with customers in forward-deployed settings to translate complex technical needs into magical, functional product features.
The ideal candidate
Has 1-3 years of experience shipping real-world products with a strong mastery of TypeScript, React, and full-stack data modeling.
Demonstrates exceptional product instinct and design taste, caring deeply about the "feel" and UX of the tools they build.
Is relentlessly resourceful and proficient with AI engineering tools like Claude Code to multiply output and master new skills rapidly.