Hybrid Senior Python Engineer – AI Agents, Forecasting

at Spoon

• Job title: Senior Python Engineer – AI Agents, Forecasting
• Job type: Full Time
• Experience level: Senior
• Salary: £80,000 - £120,000 per year
• Degree requirement: No Education Requirement
• Tech skills: Python
• Location requirements: Hybrid, London, United Kingdom

About the role

• Senior Python Engineer tasked with architecting the Numinous platform for AI forecasting agents. Involves backend architecture, data ingestion, and contributing to the technical strategy.

Responsibilities

• You'll architect and build the core infrastructure of the Numinous platform. This is the backbone that allows autonomous AI agents to ingest data, reason, compete, and forecast.
• Designing and building the agent orchestration pipeline that allows AI forecasters to ingest data, reason, and produce predictions.
• Building and optimising the signal pipeline that feeds real-world data into forecasting models.
• Experimenting with different forecasting architectures to find optimal approaches for linking targets to signals.
• Writing production-grade Python that handles complexity at scale, not scripts that work in a notebook.
• Contributing to technical strategy alongside the founders. You'll have a voice in what gets built and why.
• Evaluating and vetting technical candidates as the engineering team grows.

Requirements

• 5+ years building production-grade Python backends. You know the internals, not just the syntax.
• Hands-on experience with LLM orchestration frameworks such as LangChain or LangGraph (agent memory, tool calling, state management)
• Dagster in production (assets, sensors, partitions) or equivalent pipeline orchestration
• Strong backend fundamentals including API design, async programming, and database modelling
• You've built systems that had to work reliably at scale, not just pass a demo
• Worked at an early-stage startup or high-growth environment. You understand the pace.
• Built and shipped production systems, not just prototypes
• Comfortable being the most senior engineer in the room, or the only one

Benefits

• Equity: Competitive for the right candidate