Founding Engineer (£80k-£120k + Equity) at AI infrastructure security startup

Jack & Jill/External ATS; Greater London; On-site; GBP 80,000 - 120,000; Full time

Job summary

A pioneering AI security startup in London is seeking a Founding Engineer to build groundbreaking AI security infrastructure. The role focuses on backend development with Python and FastAPI, emphasizing real-time AI systems. Ideal candidates are hands-on, innovative thinkers who thrive in ambiguous settings and have strong technical skills. This position offers a competitive salary and equity, along with the opportunity to significantly influence product direction.

Qualifications

• Hands-on experience building robust, production-grade backends with Python and FastAPI or similar.
• Strong understanding of common architectural patterns like caching, queuing, and load balancing.
• Possesses a founding engineer mindset, comfortable with ambiguity, shipping, and iterating quickly.

Responsibilities

• Design and implement production-grade backend systems primarily using Python and FastAPI.
• Define and build infrastructure for AI systems making real-time, autonomous decisions.
• Contribute to frontend and infrastructure as needed, demonstrating versatility across the stack.

Skills

Building production-grade backends with Python

Understanding architectural patterns

Versatility across stack

Job description

Founding Engineer

£80,000-£120,000 + Equity

Company Description

AI infrastructure security startup

Job Description

As a Founding Engineer, you will build the next generation of AI security that learns and adapts to protect autonomous systems in critical environments like finance and healthcare. You'll define the control layer for real-time AI decisions, shaping product vision and owning architecture. This is a unique opportunity to establish infrastructure for a new era of AI deployment.

Location

London, UK

Why this role is remarkable

• Build the foundational security layer for autonomous AI agents operating in high‑stakes industries
• Join a pre‑seed/seed stage company backed by experienced founders with deep domain expertise
• Enjoy full autonomy over architecture, tooling, and technical standards, shaping a new field

What you will do

• Design and implement production‑grade backend systems primarily using Python and FastAPI
• Define and build infrastructure for AI systems making real‑time, autonomous decisions
• Contribute to frontend and infrastructure as needed, demonstrating versatility across the stack

The ideal candidate

• Hands‑on experience building robust, production‑grade backends with Python and FastAPI or similar
• Strong understanding of common architectural patterns like caching, queuing, and load balancing
• Possesses a founding engineer mindset, comfortable with ambiguity, shipping, and iterating quickly

How to Apply

To apply for this job speak to Jack, our AI recruiter.

Step 1. Visit our website
Step 2. Click 'Speak with Jack'
Step 3. Login with your LinkedIn profile
Step 4. Talk to Jack for 20 minutes so he can understand your experience and ambitions
Step 5. If the hiring manager would like to meet you, Jack will make the introduction