Lead AI Engineer

NewDay Ltd; Greater London; On-site; GBP 80,000 - 100,000; Full time

Benefits offered by this job

26 days holiday, rising to 30 with service

Holiday buy scheme (up to 5 extra days)

Double matched pension (up to 14% from NewDay)

Generous annual performance bonuses

Private medical insurance with Bupa

Free breakfast and lunch in the office

Job summary

NewDay Ltd in Greater London is seeking a Lead AI Engineer to own the design and delivery of AI systems across the business. This role emphasizes hands-on development of scalable solutions using LLMs and agentic systems, transforming high-value problems into tools for real workflows.

The ideal candidate will guide technical direction and implementation of production-grade AI solutions, working collaboratively with engineers to ensure robust outcomes that drive measurable business benefits.

Qualifications

• Proven track record of owning technical direction and delivery of production-grade AI systems.
• Experience designing complex AI systems across multiple use cases.
• Deep expertise in generative AI, including orchestration and evaluation.

Responsibilities

• Own the technical direction, architecture, and implementation of AI systems end-to-end.
• Design and build LLM-powered solutions from concept to production.
• Establish engineering standards and reusable components.

Skills

Technical direction and delivery of AI systems

Experience in generative AI / LLMs

Complex system design

Software engineering fundamentals

Job description

## Lead AI EngineerApplylocations: Londontime type: Full timeposted on: Posted 30+ Days Agojob requisition id: JR0140**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 service* A holiday buy scheme (up to 5 extra days)* Double matched pension, with up to 14% from NewDay* 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 NewDay, 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