You will build the core infrastructure for an AI-native platform, focusing on LLM orchestration, token caching, and multi-agent systems. Leaning towards the backend, you’ll use TypeScript to ship end-to-end features that generate reliable code at scale. This is a high-ownership role where you’ll define the architectural future of autonomous software creation.
Full Stack Engineer at cto.new
Join cto.new, a $4.7M Seed-stage powerhouse backed by Kindred Ventures and PROfounders Capital that’s redefining software creation. In just 60 days, they’ve scaled from zero to $1.5M ARR by building AI that transforms business ideas into production-ready code. As a Full Stack Engineer, you’ll dive deep into LLM orchestration and autonomous agents, shipping core infrastructure that empowers the next generation of builders. If you’re a TypeScript expert who wants to move fast and own the product roadmap, this is your chance to join a high-growth team in London and define the future of AI.
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Location
London, United Kingdom
Compensation
Not Disclosed
Company
Cto
Role overview
Build businesses with AI.
What you will do
- Develop and scale core product infrastructure including APIs, data pipelines, and sophisticated LLM orchestration layers using TypeScript.
- Collaborate directly with users to understand business requirements and translate them into autonomous code generation features and agent behaviors.
- Design and implement robust services that ensure AI-generated software remains production-ready, iterable, and reliable at significant scale.
Who this is a fit for
- Possesses deep TypeScript expertise and strong backend instincts, with experience building and scaling LLM-powered products or complex infrastructure.
- Has 1-2 years of experience at a high-growth startup or demonstrates exceptional engineering depth through standout academic credentials and technical projects.
- Thrives in ambiguous, fast-paced environments and is passionate about shipping high-quality code that defines the future of software creation.
Why this role is remarkable
- Join a high-traction startup that reached $1.5M ARR in its first 60 days, backed by top-tier investors like Kindred Ventures and EF.
- Work at the technical frontier of AI, solving complex challenges in context engineering, streaming conversations, and autonomous agent orchestration.
- Take on real ownership in a fast-paced, hybrid environment where every engineer directly influences the platform’s architectural direction and user experience.
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 Cto wants to meet, Jill will make the intro. In the meantime, Jack will send you excellent alternatives.