Founding AI Engineer

SR2 | Socially Responsible Recruitment | Certified B Corporation™; Greater London; On-site; GBP 120,000 - 180,000; Full time

Job summary

SR2 | Socially Responsible Recruitment | Certified B Corporation™ in London seeks a Founding AI Engineer to join the core team. You will build production-grade AI agents, orchestrate LLM workflows, and own the architecture as the engineering org scales.

Ideal candidates will bring experience deploying agentic solutions at scale, a strong academic track record in quantitative fields, and comfort with ambiguity and rapid execution in a high-growth startup.

Qualifications

• Degree in a quantitative field from a top university (Maths/Stats/Physics/CS/ML).
• Real-world experience deploying agentic solutions at scale in production.
• Demonstrated ability to own architecture and technical direction in a fast-growing startup.

Responsibilities

• Develop production-grade AI agents and agentic workflows from concept to deployment.
• Lead LLM orchestration, tool calling and integrations.
• Ensure real-time, event-driven reliability, observability and scalability of systems.
• Collaborate with founder and core team to drive product and technical direction.

Skills

Production AI

LLM orchestration

Agentic workflows

Real-time systems

Observability

Scalability

Ownership mindset

Ambiguity tolerance

Education

Top university degree in quantitative field

Job description

I’m working with a well‑funded, VC‑backed AI start‑up that is building production‑grade AI agents to automate complex, real‑world customer interactions.

They already have a growing customer base and strong commercial traction and are now investing heavily in the engineering team as they enter their next stage of growth.

What set’s this opportunity apart is the founder is coming from a career in asset management in the exact domain the product is built for so they have a huge head start getting in front of key decision makers and deploying pilot’s.

They’re looking for a Founding AI Engineer to join the core team in London.

You’ll be working across:

• Production AI agents and agentic workflows
• LLM orchestration, tool calling and integrations
• Real-time and event‑driven systems
• Reliability, observability and scalability
• Customer problems from initial idea through to production

You’ll have significant influence over the product, architecture and technical direction as the engineering organisation grows.

We’re particularly interested in engineers coming from high‑growth start‑ups or AI‑native environments who are comfortable with ownership, ambiguity and moving quickly.

The expectation here is for someone with a thread of high performance throughout their academic studies (quantitative subjects, Maths, Statistics, Physics, Computer Science, or Machine Learning from a top university ideally.) As well a real world experience deploying agentic solutions at scale.

London – predominantly office‑based

If you’ve built AI systems that are being used by real customers in production, get in touch.