Lead AI Engineer at Causalens

Jack & Jill; Greater London; On-site; GBP 120,000 - 180,000; Full time

Benefits offered by this job

Category leader backing

Production-grade AI deployments

Forward-deployed environment

Job summary

Causalens.com, a London startup, is seeking a Lead AI Engineer to design and deliver enterprise-grade AI systems in a forward-deployed role with global clients. You will translate business problems into scalable agentic architectures using LLMs, RAG, and multi-agent orchestration.

You will embed with clients to own technical strategy, lead engineering lifecycle, and drive high-impact automation in production-grade AI environments.

Qualifications

• Deep hands-on experience building production-grade AI systems using LLMs and agentic workflows.
• Strong client-facing technical experience in top-tier consultancies or high-growth firms.
• Architectural excellence in Python and cloud environments with leadership by example.

Responsibilities

• Embed with enterprise clients to map complex workflows and translate them into technical strategies.
• Design and architect scalable multi-agent systems with LLMs and RAG pipelines.
• Lead end-to-end engineering lifecycle from design to production deployment and iteration.

Skills

LLMs

Agentic workflows

Retrieval & reasoning

Python

Cloud environments

Production-grade AI

Tools

AWS

GCP

Azure

Job description

Job Title

Lead AI Engineer

Salary

Not Disclosed

Company Description

Causalens.com is a $50M+ funded London startup building a platform for autonomous AI "Digital Workers" for enterprise clients like Johnson & Johnson and Cisco. Backed by Molten Ventures and the CEO of Revolut, the team includes leading researchers and engineers dedicated to operationalizing agentic AI at scale.

Job Description

You will design and deliver enterprise-grade AI systems, acting as a forward-deployed engineer for global organizations. By embedding with clients to untangle complex workflows, you’ll translate business problems into scalable agentic systems using LLMs, RAG, and multi-agent orchestration. This hands-on leadership role bridges deep technical architecture with high-impact business automation.

Location

London, UK

Why this role is remarkable

• Join a $50M+ funded category leader backed by Molten Ventures and top-tier angel investors like the CEO of Revolut.
• Work on production-grade AI that moves beyond demos, building autonomous Digital Workers already used by global giants like Cisco and Syneos Health.
• Engage in a "forward-deployed" environment influenced by the Palantir playbook, focusing on high-stakes problem-solving and technical ownership.

What You Will Do

• Embed directly with enterprise clients to map complex operational workflows and translate them into robust technical strategies.
• Design and architect scalable multi-agent systems integrating LLMs, RAG pipelines, and enterprise-grade data orchestration.
• Lead the end-to-end engineering lifecycle from initial whiteboarding and system design to production deployment and iteration.

The ideal candidate

• Deep hands-on experience building production-grade AI systems using LLMs, agentic workflows, and complex retrieval/reasoning frameworks.
• Proven track record in client-facing technical roles, ideally within top-tier consultancies or high-growth tech firms like Palantir or Quantexa.
• Strong architectural expertise in Python and cloud environments (AWS/GCP/Azure) with the ability to lead other engineers by example.