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Principal AI Platform Engineer (Lead Architect)

SentinelOne· Engineering
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Hybrid (CZ/SK)$0Full-timePosted 2mo ago

About the role

Principal AI Platform Engineer / Principal Software Engineer focusing on AI/ML; founding technical leader of the new AI Platform team tasked with accelerating AI feature delivery while ensuring security, cost, and quality. Build a cohesive platform from existing AI capabilities and enable reuse across teams.

Responsibilities

  • Define the technical vision and multi-year roadmap for SentinelOne's AI Platform (model gateway/routing, agent/MCP infrastructure, evaluation pipelines, AI observability, etc.) in partnership with engineering leadership.
  • Serve as the tech lead by owning architecture decisions, setting engineering standards, reviewing critical designs, and guiding implementation across the team without people management responsibilities.
  • Support business-critical AI initiatives, partnering with product and engineering leaders to translate business strategy into platform capabilities and clear engineering priorities.
  • Partner with product teams to build customer-facing AI experiences hands-on, then platformize what was built into shared, reusable capabilities.
  • Drive technology selection and build-vs-buy decisions for the platform's core stack, weighing security, cost, scalability, and time-to-value.
  • Mentor senior engineers across the organization and act as a recognized expert on AI infrastructure within and beyond the company.

Qualifications

  • 12+ years of experience building and operating large-scale distributed systems, including several years driving the architecture of platform or infrastructure products used by multiple teams.
  • 2+ years hands-on experience taking LLM-based systems to production (e.g., model integration and routing, retrieval or agent architectures, evaluation harnesses, and cost/latency/quality optimization).
  • Strong hands-on coding skills in a mainstream backend language (e.g., Python or Go) and deep experience with Kubernetes and cloud infrastructure (AWS and/or GCP).
  • Strong product acumen with experience building world-class customer-facing products, translating customer needs into technical decisions, and engaging business stakeholders.
  • Proven track record as a tech lead of cross-team initiatives with ambiguous requirements, turning vague business goals into a sequenced technical roadmap.

Skills

Required:Technical leadershipBackend developmentKubernetes

Benefits

  • Equity & Rewards: RSUs, ESPP, performance-based bonus
  • Time Off & Wellbeing: Flexible time off, 5 weeks PTO, wellness days, paid sick/nursing leave, gender-neutral parental leave
  • Insurance & Financial Security: Private medical care, life and disability insurance, pension contribution, travel medical insurance, EAP
  • Work Perks & Flexibility: Global home office allowance, meal allowance, hybrid work in Prague/Brno or remote CZ/SK; Prague office required 2 days/week for Prague-based employees
  • Wellness & Lifestyle: Wellbeing allowance, MultiSport, Wellness Coach app
Last updated Oct 22, 2026. Interested? Apply on the company site.
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About SentinelOne

AI-Powered Enterprise Cybersecurity Platform

SentinelOne unifies AI-powered endpoint, cloud, identity, and data protection—enhanced by our Security Data Lake for seamless and efficient cybersecurity.

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