Lead AI Engineer

Location: London, England, United Kingdom; hybrid work with office attendance 1–2 days per week. The final interview stage is onsite in Hammersmith.

Company

hirify.global builds a Digital Worker Factory for deploying and managing autonomous AI systems that automate enterprise decision-making, analytics, and operational workflows, with a particular focus on pharmaceutical and life sciences organizations.

What you will do

• Work directly with enterprise clients to understand complex operational and analytical workflows.
• Translate ambiguous business challenges into technical strategies and scalable system designs.
• Design AI architectures and agentic systems combining LLMs, multi-agent orchestration, and knowledge retrieval.
• Break down initiatives into structured engineering plans and drive execution across teams.
• Lead technical delivery from architecture through production deployment and iteration.
• Guide engineers through implementation decisions and provide technical leadership.

Requirements

• Deep hands-on experience building and deploying production-grade AI systems using LLMs, RAG pipelines, MCPs, and agentic workflows.
• Experience leading complex, client-facing engagements and partnering with technical and business stakeholders.
• Strong system design and architecture expertise, including translating ambiguous business challenges into reliable AI solutions.
• Experience guiding technical projects, setting technical direction, and driving delivery to measurable outcomes.
• Solid understanding of evaluation, reliability, and performance in production AI systems.
• Experience with Python, modern LLM frameworks, orchestration tools, and cloud platforms such as AWS, GCP, or Azure.

Culture & Benefits

• Intellectual rigour, ownership, and a strong focus on achieving results.
• 25 days of paid holiday plus bank holidays, with options to carry over or sell up to 5 days.
• Share options, pension scheme, and life cover equivalent to four times annual basic salary.
• Health and dental insurance options, special discounts, and a cycle-to-work scheme.
• Learning and development budget, work-abroad days, team outings, and office snacks and drinks.

Hiring process

• Recruiter screen followed by a 30-minute hiring manager or team interview.
• Three-hour take-home challenge covering structured thinking and practical coding or problem-solving.
• Onsite Hammersmith stage with three technical interviews and a founders or executives interview.