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Perplexity Logo Perplexity · IT - Administration

Engineering Site Lead

United Kingdom, London · Job Posted February 21, 2026
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Job Description

Perplexity is revolutionizing how people discover and interact with information through AI-powered search and knowledge tools. As we expand our global footprint, we're establishing a strategic presence in London to drive innovation and growth across Europe. We're seeking an exceptional Site Lead to establish and scale our London office. This is a unique opportunity to shape Perplexity's presence in one of the world's leading tech hubs, building teams and culture from the ground up while driving technical excellence in infrastructure and AI systems. As Site Lead, you'll serve as the face of Perplexity in London, responsible for building our technical organization, fostering a world-class engineering culture, and directly managing one or more infrastructure teams.

Job Responsibility

  • Establish and lead Perplexity's London office, setting the cultural foundation and operating principles
  • Build a collaborative, high-performance engineering culture
  • Serve as the primary point of contact for all London-based activities
  • Partner with People/HR, Finance, and Operations to ensure seamless site operations
  • Drive local community engagement, partnerships, and Perplexity's brand presence
  • Directly manage and mentor one or more infrastructure or AI infrastructure teams in London
  • Set technical direction and strategy for London-based infrastructure initiatives
  • Drive architectural decisions and technical excellence across teams
  • Ensure robust systems for deployment, monitoring, scalability, and reliability
  • Build and scale high-performing infrastructure and AI infrastructure teams
  • Develop and execute talent acquisition strategy
  • Create career development frameworks and growth opportunities
  • Partner with Product, Engineering, and Research teams globally
  • Coordinate with other site leads and engineering leaders
  • Contribute to company-wide infrastructure strategy and roadmap planning

Requirements

  • 10+ years of experience in software engineering
  • 5+ years in infrastructure, cloud infrastructure, or AI infrastructure roles
  • 3+ years of people management experience, including building and scaling teams
  • Proven track record of establishing or significantly growing an engineering site or office
  • Deep technical expertise in distributed systems, cloud platforms (AWS, GCP, or Azure), and infrastructure automation
  • Experience with infrastructure supporting large-scale AI/ML systems
  • Strong understanding of modern infrastructure technologies: Kubernetes, Terraform, container orchestration, CI/CD systems
  • Demonstrated ability to set technical vision and drive execution across multiple teams
  • Excellent communication and stakeholder management skills
  • Experience working in fast-paced, high-growth technology companies
  • Passion for building inclusive, diverse, and high-performing teams

Nice to have

  • Experience at companies focused on AI/ML, search, or large-scale consumer applications
  • Previous experience as a site lead, office lead, or similar multi-team leadership role
  • Background in building infrastructure for LLM training or inference
  • Contributions to open-source infrastructure or AI infrastructure projects
  • Experience scaling teams from 0 to 20+ engineers
  • Active involvement in the London or European tech community
  • MBA or advanced technical degree

What we offer

  • Competitive compensation including equity
  • Comprehensive benefits package
  • Flexible work environment
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