We’re helping a leading, early-stage stealth start-up building multi-agentic prediction software. Their mission is to predict human behaviour at scale. They’re a small, nimble team looking for their Founding Product Platform Engineer to help lay the technical foundation for something extremely ‘crazy’!
You will be instrumental in building the core product across frontend, backend, and data workflows. This means turning prototype scripts and one-off workflows into robust, reusable product systems. You’ll build customer-facing interfaces for querying, exploring, and auditing AI-generated insights, and design clear product experiences for complex concepts like evidence, uncertainty, provenance, traces, predictions, and reports. On the backend, you’ll build APIs for customer workspaces, data ingestion, workflow execution, auth, and artifact retrieval, and design systems for storing source files, runs, outputs, traces, reports, evaluations, and provenance. Expect to create internal tools that make customer deployments faster and less manual, and own early deployment, observability, reliability, and security foundations. You’ll work closely with the Founding AI Engineer to productize AI workflows and with the founders to turn customer pain into product primitives, helping to define their engineering standards, architecture, and product culture.
Commitment: Full-time
Location: London
Start date: As soon as possible
Key requirements
- Proven experience building full-stack applications, with a strong grasp of both frontend and backend technologies.
- Experience designing and implementing robust APIs and data storage systems.
- Ability to translate complex technical concepts into intuitive user experiences.
- Comfortable owning foundational engineering work, from deployment to security.
- Eagerness to work in a fast-paced, early-stage startup environment and contribute to defining engineering culture.
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