Founding AI Engineer (+ Substantial Equity) at Venture-backed gaming AI startup

Jack & Jill/External ATS; Greater London; On-site; GBP 100,000 - 125,000; Full time

Job summary

A pioneering gaming AI startup in London seeks a Founding AI Engineer to shape AI-driven game development. This high-impact role involves designing robust agentic systems and ensuring their reliability and performance. Ideal candidates will have professional experience in building production-ready systems along with strong Python software engineering skills. We offer generous equity and the chance to make a marked impact in the gaming industry with a focused team.

Benefits

Generous equity package

Impact on the gaming industry

Opportunity to work with a world-class team

Qualifications

• Professional experience building production-ready agentic systems and pushing the frontier of LLM performance.
• Strong software engineering foundations in Python with a focus on testing, version control, and scalable architecture.
• Self-starter comfortable with high-responsibility and long-hours environment.

Responsibilities

• Design and maintain robust agentic AI systems including planners and algorithms.
• Implement advanced orchestration flows and memory systems for reliability.
• Deploy and operate agents as production services, managing performance and metrics.

Skills

Building production-ready agentic systems

Software engineering in Python

Testing and version control

Scalable architecture

Job description

Founding AI Engineer

Company Description

Venture-backed gaming AI startup

Job Description

Join as a founding member to build state-of-the-art agentic systems for the global gaming industry. You will design autonomous agents capable of complex tasks, from gameplay mechanics to analytics. This high-impact role offers significant ownership and the opportunity to define the technical frontier of AI-driven game development alongside a world-class team.

Location

London, UK

Why this role is remarkable

• True founding member status with a generous equity package significantly higher than standard early‑stage hires.
• Backed by top‑tier UK and US venture capital firms with a major funding milestone anticipated for early 2026.
• Direct impact on the gaming industry by building production‑ready agents already being used by world‑leading studios.

What you will do

• Design and maintain robust agentic AI systems including planners, loops, search algorithms, and tool‑use frameworks.
• Implement advanced orchestration flows and memory systems like GraphRAG to ensure agent reliability and safety.
• Deploy and operate agents as production services, managing containerization, performance tuning, and observability metrics.

The ideal candidate

• Professional experience building production‑ready agentic systems and pushing the frontier of LLM performance.
• Strong software engineering foundations in Python with a focus on testing, version control, and scalable architecture.
• A self‑starting, hungry individual comfortable with the high‑responsibility and long‑hours environment of a founding team.

Next steps

1. Visit our website.
2. Click 'Talk to Jack'.
3. Talk to Jack so he can understand your experience and ambitions.
4. Jack will make sure Jill considers you for this role.
5. If Jill thinks you're a great fit and the client wants to meet you, they will make the introduction.
6. If not, Jack will find you excellent alternatives.

All for free.