Lead AI Engineer

Mission Statement & Summary We’re hiring a Lead AI Engineer to own the design and delivery of AI systems across the business.

This is a hands-on role focused on building production-grade solutions using LLMs and agentic systems, embedding AI directly into core business processes rather than building isolated prototypes. You’ll take high-value problems and turn them into scalable, reliable systems used in real workflows, driving measurable business outcomes.

You’ll have ownership of technical direction, architecture, and implementation, translating defined business priorities into robust, production-ready systems. You’ll make key technical decisions and work hands-on alongside engineers to deliver solutions that are reusable, scalable, and built for long-term impact.

How You’ll Contribute Own the technical direction, architecture, and implementation of AI systems end-to-end Design and build LLM-powered and agent-based solutions from concept to production

Establish engineering standards, patterns, and reusable components across use cases

Own key technical decisions on models, tooling, infrastructure, and system design

Ensure systems are robust, observable, and production-ready (evaluation, monitoring, guardrails)
Provide technical leadership and direction to engineers contributing to AI initiatives

We're Looking For These Essential Skills Proven track record of owning the technical direction and delivery of production-grade AI systems end-to-end Experience designing and delivering complex AI systems across multiple use cases or domains

Deep expertise in generative AI / LLMs, including orchestration, prompting, and evaluation

Experience building agentic or multi-step AI systems

Strong software engineering fundamentals including APIs, system design, and cloud-based architectures

Ability to drive technical direction in ambiguous or fast-moving problem spaces

Experience influencing engineering standards and practices across multiple projects

Its a Plus If You Also Have These Skills Experience building AI platforms or reusable frameworks and patterns

Familiarity with LLMOps / MLOps and production evaluation practice

Experience embedding AI into core business processes or enterprise systems

Experience working in large-scale or regulated enterprise environments

What's in it for you?26 days holiday, rising to 30 with serviceA holiday buy scheme (up to 5 extra days)
Double matched pension, with up to 14% from New Day Generous  annual performance bonuses

Private medical insurance with Bupa, including mental health support and cancer care
26 weeks paid maternity, adoption and shared parental leave

Free breakfast and lunch in the office every day, provided by our in-house chefs …and more, which you can explore here!

At New Day, we value all types of diversity. We’re an equal opportunity employer and believe that our differences create a vibrant, authentic working culture. We want all our colleagues to feel able to bring their whole selves to work. We don’t discriminate on the basis of protected characteristics or identities. We make sure that every job is crafted to be inclusive and that people with disabilities or caring responsibilities can take part in the application and interview process.

Tell us if you need accommodations:
We’ll put reasonable adjustments in place to support you.

We work with Textio to make our job design and hiring inclusive.

Permanent Summary Location :
London Type:
Full time