At a Glance
- Tasks: Build innovative AI-driven interfaces and product surfaces using Next.js and Supabase.
- Company: Join Valyu, a pioneering startup transforming AI search infrastructure.
- Benefits: Competitive salary, equity options, and a dynamic work environment.
- Other info: Collaborate with a high-velocity team and enjoy excellent career growth.
- Why this job: Shape the future of AI with significant ownership in a cutting-edge project.
- Qualifications: 1-3 years of experience in TypeScript, React, and full-stack development.
The predicted salary is between 55000 - 95000 £ per year.
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.
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.
Full Stack Engineer (£55k–£95k + Equity) at Valyu employer: Jack & Jill
Valyu is an exceptional employer that fosters a dynamic and innovative work culture in the heart of London, where engineers are empowered to take ownership of their projects and contribute to groundbreaking AI solutions. With competitive salaries, equity options, and a focus on personal growth, employees are encouraged to develop their skills while working alongside a talented team dedicated to transforming the future of software development. Join us to be part of a high-velocity startup that values creativity and collaboration, making a meaningful impact in the AI landscape.
