Lead AI Engineer
Mission Statement & SummaryWe'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 ContributeOwn the technical direction, architecture, and implementation of AI systems end-to-endDesign and build LLM-powered and agent-based solutions from concept to productionEstablish engineering standards, patterns, and reusable components across use casesOwn key technical decisions on models, tooling, infrastructure, and system designEnsure systems are robust, observable, and production-ready (evaluation, monitoring, guardrails)Provide technical leadership and direction to engineers contributing to AI initiativesWe're Looking For These Essential SkillsProven track record of owning the technical direction and delivery of production-grade AI systems end-to-endExperience designing and delivering complex AI systems across multiple use cases or domainsDeep expertise in generative AI / LLMs, including orchestration, prompting, and evaluationExperience building agentic or multi-step AI systemsStrong software engineering fundamentals including APIs, system design, and cloud-based architecturesAbility to drive technical direction in ambiguous or fast-moving problem spacesExperience influencing engineering standards and practices across multiple projectsIts a Plus If You Also Have These SkillsExperience building AI platforms or reusable frameworks and patternsFamiliarity with LLMOps / MLOps and production evaluation practiceExperience embedding AI into core business processes or enterprise systemsExperience working in large-scale or regulated enterprise environmentsWhat'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 NewDayGenerous annual performance bonusesPrivate medical insurance with Bupa, including mental health support and cancer care26 weeks paid maternity, adoption and shared parental leaveFree 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.
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PermanentSummaryLocation: LondonType: Full time