Arrows
Senior AI Engineer
London
£90k – £120k/yr
Posted 2 days ago
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We are partnering with a profitable, fast-scaling startup shaping the next generation of sports entertainment, recognised by EGR as one of the most innovative startups in gaming, and growing over 15x in the last year.
This is a founding level hire. Reporting directly to the CTO, you'll take the company's use of AI from experiments to a real, production grade capability, shaping the platform and architecture, and setting the governance and standards that keep it safe as the business scales.
What they've built
- A product users genuinely love: unlimited group chats, multi game bet builders, and an experience designed around how people actually want to engage with sport, together. The comparison the founders draw is Revolut disrupting Barclays or Robinhood disrupting Etrade; this team is executing the same playbook against the traditional gaming sector.
What you'd be building
- Agents that run in a live product, not a slide deck, taken from experiment to something the team is happy to put in front of players, tested and validated to the standard a live product demands.
- The shared frameworks, templates and infrastructure that let other engineers ship their own agents without starting from scratch.
- The technical shape of the entire agent estate: how it retrieves, how it evaluates, how it constrains behaviour, how it's monitored, and how any of it reaches production.
- The sign off process for what goes live, how it handles player data, and where its authority stops.
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How you'd work
- Sitting with the teams who feel the pain, finding where an agent would genuinely pay for itself, and getting something in front of them fast enough to learn whether you were right.
- Choosing the approach, low code, pro code, or off the shelf, weighed on cost, control and speed to land.
- Designing for the failure cases: a call that times out, a tool that errors, a decision the agent should hand back to a person.
- Acting as the company's AI champion, running office hours, demos and short training sessions that make the wider team better at using AI.
- With direct access to senior leadership and real influence over where AI goes next, not a backlog someone else wrote.
What they need
- Demonstrable impact from agentic or LLM powered systems you've shipped to real users, with the ability to explain what broke and what you changed.
- Hands on experience with an agent framework such as LangGraph, LlamaIndex, Semantic Kernel or ADK, and RAG in production, including embedding models, vector stores, re ranking, and knowing when a live query beats retrieval.
- Strong Python experience on a real engineering foundation: testing, version control, CI/CD, and the APIs that serve your own work.
- Hands on experience with a major cloud and its managed AI services, Azure and AI Foundry or the GCP/AWS equivalents, plus solid SQL and relational modelling.
- Architectural judgement, making the design call, defending the trade offs, and knowing where an LLM system needs optimising on cost, latency and output that only sounds right.
- Strong product sense, data driven thinking, and an understanding of what players actually need.
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Nice to have
- Proving an AI system behaves rather than trusting it: eval sets, output scoring, tracing, regression gates.
- Retrieval pipelines at volume: embedding at scale, index freshness, accuracy as underlying data moves.
- Experience with workflows that survive contact with reality: timeouts, failed APIs, a human approving a step.
For more information: Max.Benmayor@Arrowsgroup.com
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Skills
Python
LLM
RAG
LangGraph
LlamaIndex
Semantic Kernel
ADK
Azure AI Foundry
SQL
Relational Modelling
CI/CD
Vector Stores
Embedding Models
API Development
Architectural Design
Product Sense
Location